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- J. H. Crocket
- T. A. K. Reddy
- N. C. Pant
- M. N. Balasubrahmanyan
- M. K. Murty
- Amitabha Sarkar
- N. R. Sengupta
- S. V. P. Iyengar
- P. Kresten
- A. O. Brunfelt
- P. K. Bishui
- K. C. Chandy
- S. N. Gupta
- N. K. Jana
- R. Prasad
- Subhasish Ghosh
- S. Chakraborty
- J. K. Bhalla
- Amitabha Sarkari
- P.K. Bishui
- C. P. Vohra
- Sabyasachi Dasgupta
- S. Guha
- N. J. Mcnaughton
- S. Chattopadhyay
- K. K. Ray
- A. Basu
- A. K. Bhattacharya
- Brindaban Das
- A. K. Chaudhary
- Arijit Ray
- S. K. Patil
- S. K. Biswas
- S. S. Nayak
- N. R. Karmalkar
- R. A. Duraiswami
- N. V. Chalapathi Rao
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Paul, D. K.
- Petrology and Geochemistry including Platinum Group Element Abundances of the Mesoproterozoic Ultramafic (Lamproite) Rocks of Krishna District, Southern India: Implications for Source Rock Characteristics and Petrogenesis
Abstract Views :207 |
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Authors
Affiliations
1 Department of Geology, Presidency College, College Street, Calcutta - 700 073, IN
2 School of Geography and Geology, McMaster University, Hamilton, Ontario, L8S 4K1, CA
3 Geological Survey of India, Bandlaguda, Hyderabad - 500 068, IN
4 Geological Survey of India, Nh5p, Nit, Faridabad, IN
1 Department of Geology, Presidency College, College Street, Calcutta - 700 073, IN
2 School of Geography and Geology, McMaster University, Hamilton, Ontario, L8S 4K1, CA
3 Geological Survey of India, Bandlaguda, Hyderabad - 500 068, IN
4 Geological Survey of India, Nh5p, Nit, Faridabad, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No Spl Iss 3 (2007), Pagination: 577-596Abstract
A suite of potassic ultramafic rocks occurs in the Krishna district in the southern Indian craton along with clusters of kimberlite. The principal minerals include olivine, pyroxene, amphibole and phlogopite. Compositional variation exists in the phlogopite of the different occurrences of the region. Mg number varies from 0.37 to 0.56 and the groundmass phlogopites are enriched in Fe and Ti and poor in Al compared to the phenocrysts. Major and trace element data indicate enrichment of LILE and LREE (La/Yb = 24 - 104; Gd/Yb = 3.8 - 8.02). Ba contents vary from 132 to 5327 ppm, which is rather low compared to literature values for lamproite. However, the abundances of Zr (> 500 ppm), Sr (> 1000 ppm) and La (>200 ppm) are similar to those in the lamproite. The potassic ultramafic rocks have variable but high U/Pb (2-37, average 17.2) and Th/U (4.6-10.7) ratios. Concentrations of Platinum Group Elements (PGE) are quite variable with Ir, Pt and Pd varying by >9, 21 and 15 times respectively over the suite. Significant features include differences in fractionation between PGE and enrichment of Cu relative to the mantle source region. Some of the samples are not ultrapotassic and peralkaline. However, combining their mineralogical and geochemical properties, these rocks of the Krishna region may be considered as a member of the lamproite clan. There is no evidence of significant crustal contamination, but fractional crystallisation of olivine and perovskite is suggested from the geochemical relations. Available isotopic age data indicate that the ca. 1220 Ma old Krishna lamproite preceded kimberlite emplacement in the region by about 160 million years. Partial melting of a mantle metasomatically enriched in Ti and Fe would yield the Krishna lamproite magma. Amphibole contributed to the melt, but the HREE abundance data preclude garnet involvement. The depth of melt formation was likely to be shallower than that of kimberlites.Keywords
Lamproite, Proterozoic, Krishna District, Southern India, Platinum Group Elements, Petrogenesis.
- K-Ar Ages of Indian Kimberlites
Abstract Views :214 |
PDF Views:138
Authors
Affiliations
1 Geological Survey of India, Calcutta, IN
1 Geological Survey of India, Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 19, No 12 (1978), Pagination: 584-584Abstract
No Abstract.Full Text
- Lamprophyres from Indian Gondwanas - K-Ar Ages and Chemistry
Abstract Views :175 |
PDF Views:2
Authors
Affiliations
1 Geochronology and Isotope Geology Division, Geological Survey of India, 29, Jawaharlal Nehru Road, Calcutta 700 016, IN
2 Chemical Laboratory, Geological Survey of India, 27, Jawaharlal Nehru Road, Calcutta 700016, IN
1 Geochronology and Isotope Geology Division, Geological Survey of India, 29, Jawaharlal Nehru Road, Calcutta 700 016, IN
2 Chemical Laboratory, Geological Survey of India, 27, Jawaharlal Nehru Road, Calcutta 700016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 21, No 4 (1980), Pagination: 188-193Abstract
Lamprophyric dyke rocks occurring in the Indian Gondwanas (Permian-Lower Cretaceous) form a consanguinous suite ranging from ultrabasic mica-peridotite to micro-syenitic assemblages. Chemical characters include low SiO2 (ca. 40% or less), high (FeO+MgO) and high MgO/FeO and K2O/Na2O ratios. The petrographic and chemical characters have been discussed in a broad framework after Rock (1977). K-Ar radiometric ages on four biotite separates and one whole rock from three different localities range from 105 to 121 Ma and are believed to represent true crystallisation ages.- Geochemistry of the Precambrian Magmatic Rocks of Mayurbhanj District, Orissa
Abstract Views :183 |
PDF Views:2
Authors
Affiliations
1 Geological Survey of India, Calcutta, IN
2 Mineralogisk-Geologisk Museum, Sarsgate, Oslo, NO
3 Mineralogical Museum Oslo, NO
1 Geological Survey of India, Calcutta, IN
2 Mineralogisk-Geologisk Museum, Sarsgate, Oslo, NO
3 Mineralogical Museum Oslo, NO
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 22, No 7 (1981), Pagination: 305-315Abstract
In the Mayurbhanj area, Orissa, Badampahar group of rocks formed the cratonic block for younger Dhanjori Group. From the composition of the chilled facies of the gabbro-anorthosite, the parent magma is believed to be low in potash and alumina. The chondrite normalised REE pattern of the ultrabasic rock of Badampahar Group is unfractionated. In contrast, the gabbro-anorthosites have fractionated REE pattern with Eu anomaly. The degree of fractionation increases in the granite-granophyres. Th/U ratios systematically increase with the total REE content. It is suggested that the source region of the magmatic rocks is anomalous in respect of the large ion lithophile elements.- New Rb-Sr Age of Kanara Granite, South Kanara District, Karnataka State
Abstract Views :193 |
PDF Views:149
Authors
M. N. Balasubrahmanyan
1,
P. K. Bishui
1,
K. C. Chandy
1,
S. N. Gupta
1,
N. K. Jana
1,
D. K. Paul
1,
R. Prasad
1
Affiliations
1 Geochronology and Isotope Geology Division, Geological Survey of India, Calcutta, IN
1 Geochronology and Isotope Geology Division, Geological Survey of India, Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 23, No 8 (1982), Pagination: 402-405Abstract
New Rb-Sr isotopic age is presented for the porphyritic phase of Kanara batholith of South Kanara, Karnataka. The porphyritic granite has a good spread of Rb/Sr ratio and indicates an isochron age of 2681 ± 236 Ma with an initial ratio of 0.7022 ± 0.004. The observed low initial Sr ratio suggests its derivation from mantle without much crustal contamination.Full Text
- Principles of Nuclear Geology
Abstract Views :176 |
PDF Views:109
Authors
Affiliations
1 Geological Survey of India, Calcutta, IN
1 Geological Survey of India, Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 26, No 12 (1985), Pagination: 898-898Abstract
No Abstract.Full Text
- Indian KimberIites and Lamprophyres: Mineralogical and Chemical Aspects
Abstract Views :182 |
PDF Views:1
Authors
Affiliations
1 Geochronology and Isotope Geology Division, Geological SUlVey of India, Calcutta 700 016, IN
1 Geochronology and Isotope Geology Division, Geological SUlVey of India, Calcutta 700 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 37, No 3 (1991), Pagination: 221-238Abstract
Mineralogical, chemical and isotopic age and abundance data on Indian kimberlites and lamprophyres are discussed to show critical differences. The available K-Ar ages indicate that the kimberlites (840-1120 Ma) are much older than the lamprophyres (56.7-113 Ma). New whole-rock chemical analyses of the Majhgawan diatreme, the only producing diamond mine in India, suggest that fractionation of olivine and spinel has been important during its evolution. In general, the lamprophyres of the Gondwana coalfield bear geochemical similarity with the kimberlites. The source region for both rock types need to be enriched in incompatible elements but the lamprophyres are likely to have formed at shallower depth compared to the kimberlites.Keywords
Kimberlite, Lamprophyre, Lamproite, Majhgawan, Wajrakarur, Gondwana.- Geochronology and Geochemistry of Granite Plutons from East Khasi Hills, Meghalaya
Abstract Views :194 |
PDF Views:2
Authors
Subhasish Ghosh
1,
S. Chakraborty
2,
J. K. Bhalla
3,
D. K. Paul
1,
Amitabha Sarkari
1,
P.K. Bishui
1,
S. N. Gupta
1
Affiliations
1 Geochronology and Isotope Geology Division, Geological Survey of India, Calcutta-700 016, IN
2 Petrology Division, Geological Survey of India, North Eastern Region, Shillong, IN
3 Geochronology and Isotope Geology Division, Geological Survey of India, Calcutta - 700 016, IN
1 Geochronology and Isotope Geology Division, Geological Survey of India, Calcutta-700 016, IN
2 Petrology Division, Geological Survey of India, North Eastern Region, Shillong, IN
3 Geochronology and Isotope Geology Division, Geological Survey of India, Calcutta - 700 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 37, No 4 (1991), Pagination: 331-342Abstract
Discordant granite plutons at Kyrdem, Nongpoh and South Khasi intrude the basement gneisses and the overlying Shillong Group of metasediments in the Meghalaya Plateau. Porphyritic granitoids ranging in composition from quartz monzonite to granite represent the dominant component in all the three plutons. Common characteristics of these granitoids arc spatial association with hornblende dioritic rocks, dominantly potassic and metaluminous nature. A positive correlation of SiO2, Na2O + K2O, Rb, Rb/Sr and negative correlation of CaO, MgO, FcO(T), Sr, TiO2 with Differentiation Index in the Kyrdcm pluton point to fractional crystallisation processes. Rb-Sr whole rock isochron data of the plutons yield ages in the range 480-690 Ma wiLh initia1 87Sr/86Sr ratios ranging from 0.70948 -0.71482. Absence of post emplacement tcctonolhennal event is suggested by near concordant K-Ar biotite ages.A protracted thennal event during late Proterozoic-early Palaeozoic (500-700 Ma), possibly related to mantle upwelling, possibly triggered the generation of these granitoids.
Keywords
Geochrmology, Geochemistry, Granitoids, Khasi Hills, Meghalaya.- Rb-Sr Chronology and Petrochemistry of Granitoids from the South-Eastern Part of the Singhbhum Craton, Orissa
Abstract Views :214 |
PDF Views:1
Authors
Affiliations
1 Geological Survey of India, Calcutta - 700 016, IN
1 Geological Survey of India, Calcutta - 700 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 38, No 1 (1991), Pagination: 5-22Abstract
The tonalitic suite of Kaptipada is high-Al2O3 type with a highly fractionated REE pattern suggesting its derivation by partial melting of amphibolite with hornblende as a residual phase. The homblende/biotite-bearing granites of Nilgiri and Ramapahari areas also occurring along the southeastern fringe,are comparatively K-rich than the lonalite-granodiorite suite of Kaptipada. Based on whole rock Rb-Sr isotopic analyses, lhe Kaptipada tonalite-granodiorite suite yields an age of 3275 ± 81 Ma with initial Sr ratio of O.70130± 0.00045; ... the Nilgiri granite, an age of 2366 ± 126Ma with initial Sr ratio of 0.72526 ± 0.00832 and Ramapahari granite, an age of 1895 ± 46 Ma wilh initial Sr ratio of 0.76521 ± 0.00427.
The temporal evolution of the tonalitic rocks of Kaptipada is indistinguishable from the earlier phases of Singhbhum and Bonai granitoids of the Singhbhum Craton. It is concluded that an extensive growth of tonalitic crust took place around 3.3 Ga in the region.
Keywords
Isotopic Study, Rb-Sr Chronology, Geochemistry, Tonalitic Granite, Crustal Evolution, Singhbhum Craton, Orissa.- Conference on 'Mesozoic Magmatism of the Eastern Margin of India'
Abstract Views :178 |
PDF Views:112
Authors
Affiliations
1 Geological Survey of India, 15A & B, Kyd Street, Calcutta 700 016, IN
1 Geological Survey of India, 15A & B, Kyd Street, Calcutta 700 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 40, No 2 (1992), Pagination: 194-194Abstract
No Abstract.Full Text
- Geochronology and Geochemistry of the Lingtse Gneiss, Darjeeling - Sikkim Himalaya: Revisited
Abstract Views :242 |
PDF Views:1
Authors
Affiliations
1 Indian School of Mines, Dhanbad - 826 004, Bihar, IN
2 Department of Geology and Geophysics, The University of Western Australia, Nedlands, W.A. 6907, AU
3 Geological Survey of India, 27, J.L. Nehru Road, Calcutta - 700016, IN
1 Indian School of Mines, Dhanbad - 826 004, Bihar, IN
2 Department of Geology and Geophysics, The University of Western Australia, Nedlands, W.A. 6907, AU
3 Geological Survey of India, 27, J.L. Nehru Road, Calcutta - 700016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 48, No 5 (1996), Pagination: 497-506Abstract
Foliated augen gneisses with streaky character, such as the Lingtse Gneiss of Sikkim-Darjeeling area, occur throughout the Himalaya. The Lingtse Gneiss is highly deformed and Occurs as thin tabular bodies. Considerable textural variation is noticed depending on the intensity of deformation and grain growth. The rocks are peraluminous and show fractionated REE pattern (Lan/Lun = 1.2-6.8). These gneisses were previously dated at 1075 and 2034 Ma by Rb-Sr method. The results of the present isotopic age determination by Rb-Sr and Pb/Pb methods indicate ages of 1678 ± 44 Ma and 1792 ± 45 Ma respectively. The variability and scatter of isotopic composition are believed to reflect imprints of tectono-thermal events.Keywords
Geochronology, Geochemistry, Lingtse Gneiss, Sikkim Himalaya.- Petrology and Geochemistry of the Lamprophyric Rocks from the Bokaro Coalfield, Bihar and their Economic Potential
Abstract Views :264 |
PDF Views:2
Authors
Affiliations
1 Geological Survey of India, 15 A & B Kyd Street, Calcutta - 700 016, IN
2 Indian School of Mines, Dhanbad - 826 004, IN
1 Geological Survey of India, 15 A & B Kyd Street, Calcutta - 700 016, IN
2 Indian School of Mines, Dhanbad - 826 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 50, No 3 (1997), Pagination: 255-266Abstract
The dyke swarms intruding the Gondwana sequence in the east Bokara Coalfield, Bihar include lamprophyres and lamproites such as olivine lamproties, olivine-leucite lamproites and leucite lamproites. Basic intrusives and rare siderite rich carbonates (carbonatite ?) are also found. The olivine lamproites contain xenocrysts of olivine and rare xenoliths of harzburgite. Gold values upto 3.6 ppm on grab samples have been noted from the intrusive rocks in the area. These lampropbyric rocks are considered to have formed from a highly incompatible element enriched metasomatised mantle source probably of harzburgitic composition.Keywords
Petrology, Geochemistry, Lamprophyric Rocks, Gold, Bokaro Coalfield, Bihar.- Petrology and Geochemistry of Basanite Dykes and Gabbro from Northern Kutch, Western India: Implications on Source Rock Characteristics
Abstract Views :175 |
PDF Views:2
Authors
Affiliations
1 Department of Geology, Presidency College, 86/1 ,College Street, Kolkata - 700 073, IN
2 Indian Institute of Technology, Roorkee - 247 667, IN
3 Indian Institute of Geomagnetism ,Magnetic Observatory, Alibag - 402 20 1, IN
4 Flat 201, C-Wing, ISM House, 818A Thakur Village, Kandivali(E), Mumbai- 400 101, IN
1 Department of Geology, Presidency College, 86/1 ,College Street, Kolkata - 700 073, IN
2 Indian Institute of Technology, Roorkee - 247 667, IN
3 Indian Institute of Geomagnetism ,Magnetic Observatory, Alibag - 402 20 1, IN
4 Flat 201, C-Wing, ISM House, 818A Thakur Village, Kandivali(E), Mumbai- 400 101, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 70, No 5 (2007), Pagination: 771-779Abstract
Major and trace (including rare earth)element abundances, mineral compositions and Nd and Sr isotopic compositions have been determined for the mafic dykes (classified as basanite) and gabbro of the northern Island belt of Kutch rift basin. These are petrographically and geochemically distinct but have similar mantle normalized trace element patterns Measured87Sr/86Sr ratios in the mafic dykes vary from 0 70428 to 0 70593 &Nd(i) varies from 0 27 to - 6 5. The isotopic compositions are broadly similar to that of Mahabaleshwar flows of western Deccan volcanic province. The geochemical character suggests the influence of fractional crystallisation in the evolution of the basanite dykes. The parent magma was enriched in K, Ti, Na and P suggesting derivations from an enriched source during the early phase of lifting Palaeomagnetic data on the dykes show the presence of both normal polarity direction at Dm = 338°, Im=-47° and reverse polarity direction at Dm=14l° and Im=34° indicating multiple intrusion Virtual Geomagnetic Pole(VGP) for the basanite dykes differs from Deccan Super pole suggesting a magmatic event older than the main Deccan eruption.Keywords
Petrology, Geochemistry, Dykes, Gabbro, Kutch, Gujarat.- Indian Kimberlites and Related Rocks: Petrology and Geochemistry
Abstract Views :185 |
PDF Views:2
Authors
Affiliations
1 Department of Geology, Presidency College, College Street, Kolkata - 700 073, IN
2 Geological Survey of India, Training Institute, Bandlaguda, Hyderabad - 500 068, IN
3 Geological Survey of India, NH5P, NIT, Faridabad 121 001, Haryana, IN
1 Department of Geology, Presidency College, College Street, Kolkata - 700 073, IN
2 Geological Survey of India, Training Institute, Bandlaguda, Hyderabad - 500 068, IN
3 Geological Survey of India, NH5P, NIT, Faridabad 121 001, Haryana, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 3 (2006), Pagination: 328-355Abstract
Potassic, ultrapotassic, ultramafic rocks occur mostly as dykes and few diatremes in the southern and central Indian cratons. The ultramafic diatreme in Majhgawan in central India is the only diamond-Producing primary source at the present time. Several occurrences in southern India also contain diamond but are not being commercially exploited. Available isotopic age data on these rocks suggest a Proterozoic age (Table I), a feature that is distinctive compared to other ages on similar rocks barring the Premier pipe in southern Africa.
We present petrographic, mineralogical and geochemical data on carefully selected samples from several localities. Mineralogically there are differences in the content of olivine, Phlogopite, perovskite and spinel among the localities. In common with occurrences elsewhere, the olivines show a range from 83 to 93 mole percent. The macrocrystal olivines are more magnesian. Among the phlogopites, a two-Fold division on the basis of Mg number is discernible. Most of the ilmenites are distinctly less magnesian than the southern African kimberlites. Geochemically the samples show a wide variation in major element abundances. Despite geographical separation and petrographic differences, Zr and Hf maintain a perfect positive correlation. In common with similar rocks, all the samples studied show an enrichment of both compatible and incompatible elements. Compared to established and accepted kimberlites of southern Africa and lamproites of Western Australia, the Indian samples show general similarity but also divergences in geochemical parameters. This is believed to suggest a transitional nature of the Indian potassic, ultramafic rocks between kimberlites and lamproites Petrogenesis of the occurrences is discussed.
Keywords
Indian Kimberlites, Review, Petrology, Geochemistry, Geochronology.- Mantle-Derived Mafic-Ultramafic Xenoliths and the Nature of Indian Sub-Continental Lithosphere
Abstract Views :354 |
PDF Views:0
Authors
Affiliations
1 Department of Geology, University of Pune, Pune - 411 007, IN
2 Department of Geology, Banaras Hindu University, Varanasi - 221 005, IN
3 Department of Geology, Presidency College, Kolkata - 700 073, IN
1 Department of Geology, University of Pune, Pune - 411 007, IN
2 Department of Geology, Banaras Hindu University, Varanasi - 221 005, IN
3 Department of Geology, Presidency College, Kolkata - 700 073, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 73, No 5 (2009), Pagination: 657-679Abstract
Mantle derived xenoliths in India are known to occur in the Proterozoic ultrapotassic rocks like kimberlites from Dharwar and Bastar craton and Mesozoic alkali igneous rocks like lamrophyres, nephelinites and basanites. The xenoliths in kimberlites are represented by garnet harzburgites, lherzolites, wehrlite, olivine clinopyroxenites and kyaniteeclogite varieties. The PT conditions estimated for xenoliths from the Dharwar craton suggest that the lithosphere was at least 185 km thick during the Mid-Proterozoic period. The ultrabasic and eclogite xenoliths have been derived from depths of 100-180 km and 75-150 km respectively. The Kalyandurg and Brahmanpalle clusters have sampled the typical Archaean subcontinental lithospheric mantle (SCLM) with a low geotherm (35 mW/m2) and harzburgitic to lherzolitic rocks with median Xmgolivine > 0.93. The base of the depleted lithosphere at 185-195 km depth is marked by a 10-15 km layer of strongly metasomatised peridotites (Xmgolivine > ∼0.88). The Anampalle and Wajrakarur clusters 60 km to the NW show a distinctly different SCLM; it has a higher geotherm (37.5 to 40 mW/m2) and contains few subcalcic harzburgites, and has a median Xmgolivine = 0.925. In contrast, the kimberlites of the Uravakonda and WK-7 clusters sampled quite fertile (median Xmgolivine ∼0.915) SCLM with an elevated geotherm (>40 mW/m2).The lamrophyres, basanites and melanephelinites associated with the Deccan Volcanic Province entrain both ultramafic and mafic xenoliths. The ultramafic group is represented by (i) spinel lherzolites, harzburgites, and (ii) pyroxenites. Single pyroxene granulite and two pyroxene granulites constitutes the mafic group. Temperature estimates for the West Coast xenoliths indicate equilibration temperatures of 500-900°C while the pressure estimates vary between 6-11 kbar corresponding to depths of 20-35 km. This elevated geotherm implies that the region is characterized by abnormally high heat flow, which is also supported by the presence of linear array of hot springs along the West Coast. Spinel peridotite xenoliths entrained in the basanites and melanephelinites from the Kutch show low equilibrium temperatures (884-972°C). The estimated pressures obtained on the basis of the absence of both plagioclase and garnet in the xenoliths and by referring the temperatures to the West Coast geotherm is ∼15 kbar (40-45 km depth). The minimum heat flow of 60 to 70 mW/m2 has been computed for the Kutch xenolith (Bhujia hill), which is closely comparable to the oceanic geotherm. Xenolith studies from the West Coast and Kutch indicate that the SCLM beneath is strongly metasomatised although the style of metasomatism is different from that below the Dharwar Craton.
Keywords
Mantle Xenoliths, Kimberlites, Alkali Magmatism, Subcontinental Lithospheric Mantle, Deccan Volcanic Province, Dharwar Craton.References
- AGARWAL, P.K., THAKUR, N.K. and NEGI, J.G. (1992) Magsat data and Curie depth below Deccan flood basalts (India), Pageoph, v.138, pp.678-691.
- AKELA, J., RAO, P.S., MCCALISTER, R.H., BOYD, F.R. and MEYER, H.O.A. (1979) Mineralogic studies on the diamondiferous kimberlte of Wajrakarur area, southern India. In: F.R. Boyd and H.O.A. Meyer (Eds.), Kimberlites, Diatremes and Diamonds. A.G.U. Washington, pp.172-177.
- ANAND, M. GIBSON, S.A., SUBBARAO, K.V., KELLEY, S.P. and DICKIN, A.P. (2003) Early Proterozoic melt generation processes beneath the intra-cratonic Cuddapah Basin, Southern India. Jour. Petrol., v.44, pp.2139-2171.
- ARUR, M.G., BAINS, P.S. and JEEVAN LAL (1986) Anomaly map of Z component of the Indian subcontinent from magnetic satellite data. Proc. Indian Acad. Sci., v.94, pp.111-115.
- AUDEN, J.B. (1949) Dykes in western India. Trans. Nat. Inst. Sci. India, v.111, pp.123-157.
- BOYD, F.R. (1973) A pyroxene geotherm. Geochim. Cosmochim. Acta, v.37, pp.2533-2546.
- BOYD, F.R. (1989) Composition and distinction between oceanic and cratonic lithosphere. Earth Planet. Sci. Lett., v.96, pp.15-26.
- BOYD, F.R., PEARSON, D.G., NIXON, P.H. and MERTZMAN, S.A. (1993) Low Ca garnet harzburgites from southern Africa: their relation to craton structure and diamond crystallization. Contrib. Mineral. Petrol., v.113, pp.352-366.
- BOYD, F.R., POKHILENKO, N.P., PEARSON, D.G., MERTZMAN, S.A., SOBOLEV, N.V. and FINGER, L.W. (1997) Composition of the Siberian cratonic mantle: evidence from Udachnaya peridotite xenoliths. Contrib. Mineral. Petrol., v.128, pp.228-246.
- BOWEN, N.L. (1927) An analcite-rich rock from the Deccan Traps of India. Jour. Wash. Acad. Sci., v.17, pp.57-59.
- CHALAPATHI RAO, N.V. (2005) Mesoproterozoic diamondiferous ultramafic pipes at Majhgawan and Hinota, Panna area, central India: key to the nature of the sub-continental lithospheric mantle beneath the Vindhyan Basin. Jour. Earth System Sci., v.115, pp.161-183.
- CHALAPATHI RAO, N.V., GIBSON, S.A., PYLE, D.M. and DICKIN, A.P. (2004) Petrogenesis of Proterozoic lamproites and kimberlites from the Cuddapah basin and Dharwar craton, southern India. Jour. Petrol., v.45, pp.907-948.
- CHALAPATHI RAO, N.V., BURGESS, R., ANAND, M. and MAINKAR, D. (2007) 40Ar/39Ar dating of the Kodomali pipe, Bastar craton, India: A Pan African (491±11 Ma) age of diamondiferous kimberlite emplacement. Jour. Geol. Soc. India, v.69, pp.539-546.
- CHOUDARY, V.S., RAU, T.K., BHASKARARAO, K.S., SRIDHAR, M. and SINHA, K.K. (2007) Timmasamudram kimberlite cluster, Wajrakarur kimberlite field, Anantapur district, Andhra Pradesh. Jour. Geol. Soc. India, v.69, pp.597-610.
- DAS GUPTA, P.K. (1986) Picrite-borne mantle xenoliths from Cuddapah Basin, south India. Indian Jour. Earth Sci., v.13, pp.333-338.
- DE, A. (1964) Iron titanium oxides and silicate minerals of the alkali olivine basalts tholeiitic and acidic rocks of the Deccan Trap series and their significance. Int. Geol. Cong. Rept. 22nd Session, pt. III, pp.126-138.
- DESHPANDE, G.G. and CHAKRANARAYAN, A.B. (1973) Occurrence of lamprophyre near Murud-Janjira, Koloba district, Maharashtra. Curr. Sci., v.42, pp.404-405.
- DESSAI, A.G. (2003) Granulite xenoliths from the western Dharwar Craton: constraints on the composition of the lower continental crust. Mem. Geol. Soc. India, no.53, pp.215-231.
- DESSAI, A.G., KNIGHT, K. and VASELLI, O. (1999) Thermal structure of the lithosphere beneath the Deccan Trap along the western Indian continental margin: evidence from xenolith data. Jour. Geol. Soc. India, v.54, pp.585-598.
- DESSAI, A.G., ROCK, N.M.S. GRIFFIN, B.J. and GUPTA, D. (1990) Mineralogy and petrology of some xenolith bearing alkaline dykes associated with Deccan Magmatism, south of Bombay, India. European Jour. Mineral., v.2, pp.667-685.
- DESSAI, A.G. and VASELLI, O. (1999) Petrography and geochemistry of xenoliths in lamprophyres from the Deccan Traps: implications for the nature of the deep crust boundary in western India. Mineral Mag., v.63, pp.703-722.
- DURAISWAMI, R.A. (2008) Petrography and geochemistry of ultramafic xenoliths in the alkaline rocks from Kutch, Gujarat and their bearing on the mantle beneath Kutch. Unpubl. Ph.D. thesis, University of Pune, pp.1-315.
- EVENSEN, N.M., HAMILTON, P.J. and O'NIONS (1978) Rare earth abundances in chondritic meteorites. Geochim. Cosmochim. Acta, v.42, pp.1199-1212.
- FINNERTY, A.A. and BOYD, F.R. (1987) Thermobarometry for garnet peridotite xenoliths: a basis for upper mantle stratigraphy. In: P.H. Nixon (Ed.), Mantle Xenoliths. Wiley, Chichester, pp.381-402.
- FRASER, D. and LAWLESS, P. (1978) Paleogeotherms: implications of disequilibrium in garnet lherzolite xenoliths. Nature, v.273, pp.220-222.
- FREY, F.A. and PRINZ, M. (1978) Ultramafic inclusions from San Carols, Arizona: Petrologic and geochemical data bearing on the petrogenesis. Earth Planet. Sci. Lett., v.38, pp.129-176.
- GANGULY, J. and BHATTACHARYA, P.K. (1987) Xenoliths in Proterozoic kimberlites from southern India: petrology and geophysical implications. In: P.H. Nixon (Ed.), Mantle xenoliths. John Wiley and Sons Ltd., pp.249-265.
- GOKARN, S.G., RAO, C.K. and GUPTA, G. (1998) Magnetotelluric studies over the Dharwar craton. Ann. Conv. 35th Meeting of Int. Geophy. Union. Continental Margins of India-Evolution, processes and potentials. Abstr., pp.51-52.
- GRAND, S.P. (1994) Mantle shear structure beneath America and surrounding oceans. Jour. Geophys. Res., v.99, pp.11591-11621.
- GRIFFIN, W.L., O'REILLY, S.Y. and RYAN, C.G. (1999) The composition and origin of sub-continental lithospheric mantle. In: Y. Fei, C.M. Berka, and B.O. Mysen (Eds.) Mantle Petrology: Field Observations and High-pressure Experimentation: a Tribute to Francis R. (Joe) Boyd. Geochemical Soc. Spec. Publ. 6, pp.13-45.
- GRIFFIN, W.L. and O'REILLY, S.Y. (1987a) Is the continental Moho the crust-mantle boundary? Geology, v.15, pp.241-244.
- GRIFFIN, W.L. and O'REILLY, S.Y. (1987b) The composition of the lower crust and the nature of the continental Moho-xenolith evidence. P.H. Nixon (Ed). Wiley, Chichester, pp.413-430.
- GRIFFIN, W.L, O'REILLY, S.Y., NATAPOVE, L.M. and RYAN C.G. (2003) The evolution of lithospheric mantle beneath Kalahari Craton and its margins. Lithos, v.71, pp.215-242.
- GRIFFIN, W.L, KOBUSSEN, A. F., BABU, E.V.S.S.K., O'REILLY, S.Y., NORRIS, R. and SENGUPTA, P. (2008) Contrasting lithospheric mantle across the suture between the Eastern and Western Dharwar Cratons, Central India. 9th International Kimberlite Conference Extended Abstract No.9IKC-A-00103, Frankfurt, Germany.
- GUHA, D., DAS, S., SRIKARNI, C. and CHAKRABORTY, S.K. (2005) Alkali basalt of Kachchh: its implication in the tectonic framework of Mesozoic of western India. Jour. Geol. Soc. India, v.66, pp.599-608.
- HARTE, B. (1977) Rock nomenclature with particular relation to deformation and recrystallisation texture in olivine bearing xenoliths. Jour. Geol., v.85, pp.279-288.
- HARTE, B. and HAWKESWORTH, C.J. (1989) Mantle domains and mantle xenoliths. In: J. Ross (Ed.), Kimberlites and related rocks. Geol. Soc. Australia Spec. Publ. no.14 Blackwell, Perth, v.2, pp.649-686.
- HOOPER, P.R. (1990) The timing of crustal extension and the eruption of continental flood basalts. Nature, v.345, pp.246-249.
- HUTCHISON, R., CHAMBERS, A.L., PAUL, D.K. and HARRIS, P.G. (1975) Chemical variation among French xenoliths – evidence for mantle heterogeneity. Min. Mag., v.40, pp.153-170.
- JACOB, D.E. (2004) Nature and origin of eclogite xenoliths from kimberlites. Lithos, v.77, pp.295-316.
- KAILA, K.L. REDDY, P.R. and DIXIT, M.N. (1981) Deep crustal structure at Koyna indicated by Deep Seismic Soundings, Jour. Geol Soc India, v.22, pp.1-16.
- KARMALKAR, N.R., DURAISWAMI, R.A., SARMA, P.K., CHAUHAN, S.P. and JONNALAGADDA, M.K. (2007) Peeping into the Interior of the Western Continental Margin of India: A Xenolith based perspective, IAGR, Mem. 10, pp.143-155.
- KARMALKAR, N.R., GRIFFIN, W.L. and O'REILLY, S.Y. (2000) Ultramafic xenoliths from Kutch (NW India): Plume-related mantle samples? Int. Geol. Rev., v.42, pp.416-444.
- KARMALKAR, N.R. and REGE, S. (2002) Cryptic metasomatism in the upper mantle beneath Kutch: evidence from spinel lherzolite xenoliths. Curr. Sci., v.82, pp. 1157-1164.
- KARMALKAR, N.R., REGE, S., GRIFFIN, W.L. and O'REILLY, S.Y. (2005) Alkaline magmatism from Kutch, NW India: implications for Plume-lithosphere interaction. Lithos, v.81, pp.101-119.
- KARMALKAR, N.R. and SARMA, P.K. (2003) Characterization and origin of silicic and alkali rich glasses in the Upper mantle derived Spinel peridotite xenoliths from alkali basalts, Deccan Trap, Kutch, Northwest India. Curr. Sci., v.85, pp.386-392.
- KENT, R.W., KELLEY, S.P. and PRINGLE, M.S. (1998) Mineralogy and 40Ar/39Ar geochronology of orangeites (Group II Kimberlites) from the Damodar Valley, eastern India. Mineral. Mag., v.62, pp.313-323.
- KENT, R.W., STOREY, M. and SAUNDERS, A.D. (1992) Large igneous provinces: sites of plume impact or plume incubation? Geology, v.20, pp. 865-960.
- KOHLER, T.P. and BREY, G. (1990) Calcium exchange between olivine and clinopyroxene calibrated as a geothermobarometer for natural peridotites from 2 to 60 Kb with applications Geochim. Cosmochim. Acta, v.54, pp.2375-2399.
- KRAMERS, J.D. (1977) Lead and strontium isotopes in Cretaceous kimberlites and mantle derived xenoliths from southern Africa. Earth. Planet. Sci. Lett., v.34, pp.419-431.
- KRISHNAMURTHY, P., PANDE, K. GOPALAN, K. and MACDOUGALL, J.D. (1989) Upper mantle xenoliths in alkali basalts related to Deccan Trap volcanism. Mem. Geol. Soc. India, no.10, pp.53-68.
- KRISHNAMURTHY, P., PANDE, K. GOPALAN, K. and MACDOUGALL, J.D. (1999) Mineralogical and chemical studies on alkaline basaltic rocks of Kutch, Gujarat, India. In: K.V. Subbarao (Ed.), Deccan Volcanic Province. Mem. Geol. Soc. India, no.43, pp.757-783.
- LYNN, M. (2005) The discovery of kimberlites in the Gulburga and Raichur districts of Karnataka. Proc. Group Discussion on kimberlites and related rocks of India. Geol. Soc. India, pp.48-49.
- MANDAL, P., RASTOGI, B.K., SATYANARAYANA, H.V.S., KOUSALYA, M., VIJAYRAGHAVAN, R., SATYAMURTY, C., RAJU, I.P., SARMA, A.N.S. and KUMAR, N. (2001) Characterization of the fault system for Bhuj earthquake of Mw 7.7. Tectonophysics, v.378, pp.105-121.
- MARATHE, T.S. (2006) Geological studies of diamond and other gemstones of Raipur district of Chhattisgarh by integrated, classical and remote sensing methods. Unpubl. Ph.D thesis, Barakatullah University, Bhopal, pp. 1-172.
- MEEN, J.K., AYERS, J.C. and FREGEAU, E.J. (1989) A model of mantle metasomatism by carbonated alkaline melts: trace-element and isotopic compositions of mantle source regions of carbonatite and other continental igneous rocks. In: K. Bell (Ed.), Carbonatites: Genesis and Evolution. Unwin Hyman, London, pp. 464-499.
- MEISSNER, R., LUSCHEN, E. and FLUH, E.R. (1983) Studies of continental crust by near vertical reflection methods: A Review. Phys. Earth Planet Int., v.31, pp.363-376.
- MENZIES, M. and MURTHY, V.R. (1980) Enriched mantle: Nd and Sr isotopes in diopsides from kimberlite nodules. Nature, v.283, pp.634-636.
- MERCIER, J.C. and NICOLAS, A. (1975) Texture and fabrics of upper mantle peridotites as illustrated by the xenoliths from basalts. Jour. Petrol., v.16, pp.454-487.
- MISRA K.C., ANAND, M. and PAUL, D.K. (2008) Trace element signatures of an eclogite xenolith from a Southern Indian kimberlite. 9th international Kimberlite Conference, Frankfurt, Germany.
- MITCHELL, R.H. (2007) Potassic rocks from the Gondwana coalfields of India: closing Pandora's box of petrological confusion. Jour. Geol. Soc. India, v.69, pp.505-512.
- MUKHERJEE, A.B. and BISWAS, S.K. (1988) Mantle derived spinel lherzolite xenoliths from the Deccan Volcanic Province (India): implications for the thermal structure of the lithosphere underlying the Deccan Trap. Jour. Volcanol. Geothermal. Res., v.35, pp.269-276.
- MURTHY, Y.G.K, RAO, M.G., MISRA, R. and REDDY, A.K. (1980) Kimberlite diatreme of AP, their assessment and the search for concealed bodies. Proc. Symp. Bombay, India QUA 26.
- NEGI, J.G., AGARWAL, P.K. and PANDEY, C.P. (1987) Large variation of Curie depth and lithospheric thickness beneath the Indian subcontinent and case for magnetothermometry. Geophy. Jour. Roy. Astr. Soc. v.88, pp.763-775.
- NEHRU, C.E. and REDDY, A.K. (1989) Ultramafic xenoliths from Vajrakarur kimberlites, India. Geol. Soc. Australia Spec. Publ., v.14, pp.745-758.
- NIXON, P.H. (1987) Mantle xenoliths, Wiley, Chichester.
- NIXON, P.H. and BOYD, F.R. (1973) Petrogenesis of the granular and sheared ultrabasic nodule suite in kimberlite. In: P.H. Nixon (Ed.), Lesotho kimberlites, Cape and Transvaal. Maseru, pp.48-56.
- NIXON, P.H. and DAVIS, G.R. (1987) Mantle xenolith perspectives. In: P.H. Nixon (Ed.), Mantle Xenoliths. John Wiley and Sons Ltd., pp.742-756.
- NORMAN, M.D. (1998) Melting and metasomatism in the continental lithosphere: Laser ablation ICPMS analysis of minerals in spinel lherzolites from eastern Australia. Contrib. Mineral Petrol., v.130, pp.240-255.
- O'REILLY, S.Y. and GRIFFIN, W.L. (1985) A xenolith derived geotherm for southeastern Australia and its geophysical implications. Tectonophysics, v.111, pp.41-63.
- O'REILLY, S.Y., NICHOLLS, I.A. and GRIFFIN, W.L. (1989) Xenoliths and megacrysts of mantle origin. In: R.W. Johnson (Ed.), Intraplate volcanism in Eastern Australia and New Zealand, 408p.
- O'REILLY, S.Y., CHEN, D., GRIFFIN, W.L. and RYAN, C.C. (1997) Minor elements in olivine from spinel lherzolite xenoliths: implications for thermobarometry. Mineral. Mag., v.61, pp.257-269.
- O'REILLY, S.Y., GRIFFIN, W.L. and RYAN, C.G. (1991) Residence of trace elements in metasomatized spinel lherzolite xenoliths: a proton microprobe study. Contrib. Mineral. Petrol., v.109, pp.98-113.
- PANDEY, O.P. and AGRAWAL, P.K. (1999) Lithospheric mantle deformation beneath the Indian Cratons. Jour. Geol., v.107, pp.683-692.
- PATEL, S.C., RAVI, S., THAKUR, S.S., RAO, T.K. and SUBBARAO, K.V. (2006) Eclogite xenoliths from Wajrakarur kimberlites, southern India. Mineral. Petrol., v.88, pp.363-380.
- PAUL, D.K., CROCKET, J.H. and NIXON, P.H. (1979) Au, Pd and Pt contents of kimberlites and associated nodules. In: F.R. Boyd and H.O.A. Meyer (Eds.), Transactions American Geophysical Union Monographs, v.1, pp.272-279.
- PAUL, D.K., NAYAK, S.S. and PANT, N.C. (2006) Indian kimberlites and related rocks: petrology and geochemistry. Jour. Geol. Soc. India, v.67, pp.328-355.
- PAUL, D.K., CROCKET, J.H., REDDY, T.A.K. and PANT, N.C. (2007) Petrology and geochemistry including Platinum group element abundances of the mesoproterozoic ultramafic (Lamproite) rocks of Krishna district, Southern India: Implications for source rock characteristics and petrogenesis. Jour. Geol. Soc. India, v.69, pp.577-596.
- PEARSON, D.G., CANIL, D. and SHIREY, S.B. (2003) Mantle samples included in volcanic rocks: Xenoliths and diamonds: Treatise on Geochemistry, Elsevier, v.2, pp.171-275.
- PESLIER, A.H., REISBERG, L.R., LUDDEN, J. and FRANCIS, D. (2000) Os isotope systematics in mantle xenoliths: age constraints on the Canadian Cordillera lithosphere. Chem. Geol., v.166, pp.85-101.
- POLET, J. and ANDERSON, D.L. (1995) Depth extent of cratons as inferred from tomographic studies. Geology, v.23, pp.205-208.
- PROYER, A., DACHS, E. and MCCAMMON, C. (2004) Pitfalls in geothermobarometry of eclogites: Fe+3 and changes in the mineral chemistry of omphacite at ultrahigh pressures. Contrib. Mineral. Petrol., v.147, pp.305-318.
- RAO, P.S. and PHADTARE, P.N. (1966) Kimberlite pipe rocks of Wajrakarur, Anantpur district, Andhra Pradesh. Jour. Geol. Soc. India, v.7, pp.110-117.
- RAO, K.R.P., RAO, K.N., DHAKATE, M.V. and NAYAK, S.S. (2001) Petrology and mineralogy of mantle xenoliths of Wajrakarur and Narayanpet kimberlite fields. Andhra Pradesh, India. Geol. Surv. India Spec. Publ., v.58, pp.577-591.
- RAO, K.R.P., REDDY, T.A.K., RAO, K.V.S., RAO, K.S.B. and RAO, N.V. (1998) Geology, petrology and geochemistry of Narayanapet kimberlites in Andhra Pradesh and Karnataka. Jour. Geol. Soc. India, v.52, pp.663-676.
- RAVAL, U. and VEERASWAMY, K. (1996) Densification in the Deep crust: A consequence of the passage of Indian Lithosphere over the Reunion Plume. Gondawana Geol. Mag. Spec., v.2, pp.393-404.
- RAVI, S., PATEL, S.C. REDDY, T.A.K. and RAO, T.K. (2007) Mafic xenoliths and chromium spinel macrocrysts in kimberlites from southern India. IAGR Mem. No.10, pp.135-142.
- RAY, R., SHUKLA, A.D., SHETH, H.C., RAY, J.S., DURAISWAMI, R.A., VANDERKLUYSEN, L., RAUTELA, C.S. and MALLIK, J. (2007) Highly heterogeneous Precambrian basement under the central Deccan Traps, India: Direct evidence from xenoliths in dykes. Gondwana Res., v.13, pp.375-385.
- REDDY, T.A.K. (1986) Petrology and geochemistry of Wajrakarur kimberlites. Rec. Geol. Surv. India, v.115, pp.54-66.
- REDDY, T.A.K. (1987) Kimberlite and lampriote rocks of Wajrakarur, Andhra Pradesh. Jour. Geol. Soc. India, v.30, pp.1-12.
- REDDY, T.A.K., SRIDHAR, M., RAVI, S. and CHAKRAVARTHY, V. (2003) Petrography and geochemistry of the Krishna lamproite field, Andhra Pradesh. Jour. Geol. Soc. India, v.61, pp.131-140.
- RICHARDSON, S.H., GURNEY, J.J., ERLANK, A.J., and HARRIS, J.W. (1984) Origin of diamonds in old enriched mantle. Nature, v.310, pp.198-202.
- RUDNICK, R.L. (1992) Xenolith- samples of the lower continental crust. In: D.M. Fountain, R.J. Arculus, and R.W. Kay (Eds.), Continental Crust. Elsevier, New York, pp.269-316.
- RUDNICK, R.L., MCDONOUGH, W.F. and CHAPPELL, B.W. (1993) Carbonatite metasomatism in northern Tanzanian mantle: petrography and geochemical characteristics. Earth Planet. Sci. Lett., v.114, pp.463-475.
- SARKAR, D., SAIN, K, REDDY, P.R., CATCHINGS, R.D. and MOONEY, W.D. (2007) Seismic reflection images beneath 2001, M = 7.7 Kutch (Bhuj) epicentral region western India. Geol. Soc. Amer. Spec. Paper 425, pp.319-325.
- SCHULZE, D.J. (1989) Constraints on the abundance of eclogite in the upper mantle. Jour. Geophys. Res., v.94, pp.4205-4212.
- SCHMIDBERGER, S.S. and FRANCIS, D. (1999) Nature of the mantle ischolar_mains beneath the North American craton: mantle xenolith evidence from Somerset Island kimberlites. Lithos, v.48, pp. 195-216.
- SHIMIZU, N. (1999) Young geochemical features in cratonic peridotites from southern Africa and Siberia. In: Y. Fei, C.M. Bertka and B. Mysen (Eds.), Mantle Petrology: Field Observations and High Pressure Experimentation. The Geochemical Soc., Houston, v.6, pp.47-55.
- STRICKEISEN, A. (1976) To each plutonic rock its proper name. Earth Sci. Rev., v.12, pp.1-33.
- TAYLOR, L.A., KELLER, R.A., SNYDER, G.A., WANG, W.Y., CARLSON, W.D., HAURI, E.H., MCCANDLES, T., KIM, K.R., SOBOVEL, N.V. and BEZBORODOV, S.M. (2000) Diamonds and their mineral inclusions, and what they tell us: a detailed "pull apart" of a diamondiferous eclogite. Int. Geol. Rev., v.42, pp.959-983.
- VENKATESAN, T.R., PANDE, K. and GOPALAN, K. (1986) 40Ar-39Ar dating of Deccan basalts. Jour. Geol. Soc. India, v.27, pp.102-109.
- WASHINGTON, H.S. (1922) Deccan Traps and other plateau basalts. Bull. Geol. Soc. Amer., v.33, pp.765-803.
- WILKINSON, J.F.G. (1975) An Al-spinel ultramafic-mafic inclusion suite and high-pressure megacrysts in an analcimite and their bearing on basaltic magma fractionation at elevated pressures. Contrib. Mineral Petrol., v.53, pp.71-104.
- WILSHIRE, H.G. and SHERVAIS, J.W. (1975) Al-augite and Cr-diopside ultramafic xenoliths in basaltic rocks from the western United States. Phys. Chem. Earth., v.9, pp.257-272.
- WITT-EICKSCHEN, G. and SECK, H.A. (1987) Temperature history of sheared mantle xenoliths from the west Eifel, Germany: Evidence from mantle diapirism beneath the Rhenish Massif. Jour. Petrol., v.28, pp.475-493.
- WITT-EICKSCHEN G. and SECK, H.A. (1991) Solubility of Ca and Al in orthopyroxene from spinel peridotite an improved version of an empirical geothermometer. Contrib. Mineral. Petrol., v.106, pp.431-439.
- XU X. O'REILLY, S.Y., GRIFFIN, W.L. and ZHOU, X. (2000) Genesis of young lithospheric mantle in southeastern China: a LAMICPMS trace element study. Jour. Petrol., v.41, pp.111-148.
- YAXLEY, G.M., CRAWFORD, A.J. and GREEN, D.H. (1991) Evidence for carbonatite metasomatism in spinel peridotite xenoliths from western Victoria, Australia. Earth Planet. Sci. Lett., v.107, pp.305-317.
- ZANG, Y.S. and TANIMOTO, T. (1993) High-resolution global upper mantle structure and plate tectonics. Jour. Geophys. Res., v.98, pp.9793-9823.
- ZHANG, M., STEPHENSON, P.J., O'REILLY, S.Y., MCCULLOCH, M.T. and NORMAN, M. (2001) Petrogenesis and geodynamic implications of late Cenozoic basalts in North Queensland, Australia: trace element and Sr-Nd-Pb isotope evidence. Jour. Petrol., v.42, pp.685-719.