Refine your search
Collections
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
Wasim, S. M.
- Facies Controlled Diagenetic Evolution of the Delhi Group Sandstones, Bayana Basin, Rajasthan
Abstract Views :181 |
PDF Views:0
Authors
Affiliations
1 Department of Geology, Aligarh Muslim University, Aligarh - 202 002, IN
1 Department of Geology, Aligarh Muslim University, Aligarh - 202 002, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 3 (2011), Pagination: 261-268Abstract
The Bayana Basin forms the eastern most limit of north Delhi fold belt covering parts of northeastern Rajasthan. The deposition of sediments took place during middle Proterozoic in fluvial and shallow marine environments. The rocks are mainly clastics and include conglomerate, sandstone and shale. During mechanical compaction rearrangement of grains took place and point and long contacts were formed. The sandstones are cemented by iron oxide, silica, carbonate and barite. The porosity has developed due to dissolution of iron, carbonate cement and feldspar grains. Dissolution of quartz along grain boundaries and silica rich compaction pore water seems to be the main source of silica. These observations suggest progressive compaction which initiated at the sediment water interface and continued till deep burial diagenesis in a rapidly subsiding basin.Keywords
Facies Controlled Diagenetic Evolution, Delhi Group, Bayana Basin, Rajasthan.
- Some Foraminiferal Taxa in the Middle to Late Jurassic Sediments of Kaiya Dome, Kutch
Abstract Views :180 |
PDF Views:0
Authors
Affiliations
1 Department of Geology, Aligarh Muslim University, Aligarh - 202 002, IN
2 K-69, Gyansarover, Aligarh - 202 002, IN
3 Department of Geology, Dharam Samaj College, Aligarh - 202 001, IN
4 Paleontology Lab, KDMIPE, ONGC Ltd., 9, Kaulagarh Road, Dehradun - 248 195, IN
1 Department of Geology, Aligarh Muslim University, Aligarh - 202 002, IN
2 K-69, Gyansarover, Aligarh - 202 002, IN
3 Department of Geology, Dharam Samaj College, Aligarh - 202 001, IN
4 Paleontology Lab, KDMIPE, ONGC Ltd., 9, Kaulagarh Road, Dehradun - 248 195, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 79, No 2 (2012), Pagination: 161-168Abstract
The Chari Formation exposed at Kaiya Dome, Kutch yielded a foraminiferal assemblage comprising 41 species dominated by the family Vaginulinidae. A systematic account of 11 species, reported for the first time form the Indian subcontinent, is presented. The foraminiferal assemblage is employed for preliminary interpretations regarding age, palaeoecology, and palaeobiogeography. The assemblage suggests a Callovian to Oxfordian age for the exposed sequence at Kaiya Dome. A near shore, open marine environment ranging from mid to outer shelf with fluctuating strandline is interpreted on the basis of the recovered foraminiferal assemblage. The Kaiya Dome foraminiferal assemblage exhibits a Tethyan affinity and suggests that the Kutch region, along with neighbouring regions, was engulfed by a shallow southwestern arm of Tethys during Middle to Late Jurassic times.Keywords
Jurassic Foraminifera, First Report, Systematics, Age, Palaeoecology, Palaeobiogeography, Kutch.References
- BARTENSTEIN, H. and BRAND, E. (1951) Mikropaläontologische Untersuchungen zur Stratigraphie des nordwestdeutschen Valendis. Senckenb. Naturf. Ges., Abh., Frankfurt on Main, n.485, pp.239-336.
- BHALLA, S.N. and ABBAS, S.M. (1976) The age and paleogeographical significance of Jurassic Foraminifera from Kutch: In: 1st Int. Symp. on Benthonic Foraminifera of Continental Margins, Canada. Maritime Sediments, Spec. Publ., no.1, Pt.B, pp.537-544.
- BHALLA, S.N. and ABBAS, S.M. (1978) Jurassic foraminifera from Kutch, India. Micropaleontology, v.24(2), pp.160-209.
- BHALLA, S.N. and TALIB, A. (1991) Callovian-Oxfordian foraminifera from Jhurio hill, Kutch, Western India. Rev. de Palèobiol., Genéve, v.10(1), pp.85-114.
- FÜRSICH, F.T., OSCHMANN, W., JAITLY, A.K. and SINGH, I.B. (1991) Faunal response to transgressive-regressive cycles: examples from the Jurassic of western India. Palaeogeog., Palaeoclimat., Palaeoeco., v.85, pp.149-159.
- GAUR, K.N. and TALIB, A. (2009) Middle-Upper Jurassic foraminifera from Jumara Hills, Kutch, India. Rev. de Micropal., v.52, pp.227-248.
- GORDON, W.A. (1965) Foraminifera from the Corallian Beds, Upper Jurassic of Dorset, England. Jour. Pal., v.39(5), pp. 828-863.
- HERRERO, C., COPESTAKE, P. and JOHNSON, B. (1996) Saracenella mochrasensis sp. nov. (Foraminiferida), a regional biostratigraphic marker species for Upper Toarcian (Jurassic) of Europe. Jour. Form. Res., v.26, n.3, pp.187-192.
- KALANTARI, A. (1969) Foraminifera from the Middle Jurassic-Cretaceous successions of Koppet-Dagh Region (N.E. Iran). Nat. Iranian Oil Co., Geol. Lab. Publ., n.3, pp.1-298.
- KALIA, P. and CHOWDHURY, S. (1983) Foraminiferal biostratigraphy, biogeography, and environment of Callovian sequence, Rajasthan, northwestern India. Micropaleontology, v.29(3), pp.223-253.
- KHOSLA, S.C., JAKHAR, S.R. and MOHAMMED, M.H. (1997) Ostracodes from the Jurassic rocks of Habo hill, Kachchh, Gujarat. Micropaleontology, v.43(1), pp.1-39.
- KHOSLA, S.C., JAKHAR, S.R. and MOHAMMED, M.H. (2004) Ostracodes from the Jurassic beds of Jhura hill, Kachchh, Gujarat. Jour. Geol. Soc. India, v.63, pp.15-28.
- KHOSLA, S.C., KUMARI, M., FLEX, A.D., JAKHAR, S.R. and NAGORI, M.L. (2005) Middle Jurassic ostracodes from the northern Island belt, Rann of Kachchh, Gujarat, India. Jour. Palaeont. Soc. India, v.50(1), pp.17-64.
- KRISHNA, J. (1983) Callovian-Albian ammonoid stratigraphy and palaeobiogeography in the Indian subcontinent with special reference to the Tethys Himalaya. Himalayan Geol., v.11, pp.43-72.
- LOEBLICH, A.R. JR. and TAPPAN, HELEN (1952) The foraminiferal genus Triplasia Reuss, 1854. Smithson. Inst., Misc. Coll., Washington, D.C., v.117(15), Publ.4094, pp.1-61.
- LOEBLICH, A.R. JR. and TAPPAN, HELEN (1988) Foraminiferal genera and their classification. Van Nostrand Reinhold Company, New York, 970 p.
- PANDEY, J. and DAVE, A. (1993) Studies in Mesozoic foraminifera and chronostratigraphy of Western Kutch, Gujarat. Paleontographica Indica, no.1, pp.1-221.
- REOLID, M., RODRIGUEZ-TOVAR, F.J., NAGY, J. and OLÓRIZ, F. (2008) Benthic foraminiferal morphogroups of mid to outer shelf environments of the Late Jurassic (Prebetic Zone, southern Spain): Characterization of biofacies and environmental significance. Palaeogeog., Palaeoclimat., Palaeoeco., v.261, pp.280-299.
- SAID, R. and BARAKAT, M.G. (1958) Jurassic microfossils from Gebel Maghara, Sinai, Egypt. Micropaleontology, v.4(3), pp.231-272.
- TALIB, A. and GAUR, K.N. (2008) Foraminiferal composition and age of the Chari Formation, Jumara Dome, Kutch. Curr. Sci., v.95(3), pp.367-373.
- TALIB, A., GAUR, K.N. and BHALLA, S.N. (2007) CallovianOxfordian boundary in Kutch Mainland, India-A foraminiferal approach. Rev. de Palèobiol., Genéve, v.26(2), pp.625-630.
- VANDERPOOL, H.C. (1933) Upper Trinity microfossils from southern Oklahoma. Jour. Paleont., v.7, pp.406-411.
- WAAGEN, W. (1875) Jurassic geology of Cutch . Pal. Ind., Geol. Surv. India, Ser.9, v.1.
- WILLIAMSON, A.M. and STAM, B. (1988) Jurassic/Cretaceous Epistomonidae from Canada and Europe. Micropleontology, v.4, no.2, pp.136-158.