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
Bhargava, O. N.
- Fifth International Conference of IGCP 42: North Gondwana Mid-palaeozoic Bioevent/Biogeography Patterns in Relation to Crustal Dyanamics and First Pakistan Palaeontological Convention at Peshawar University, 18th-26th September, 1999
Authors
1 103, Sector 7, Panchkula - 134 109, IN
2 Centre of Advanced Study in Geology, Panjab University, Chandigarh 160 014, IN
3 National Centre of Excellence in Geology, Peshawar University, Peshawal, PK
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 55, No 3 (2000), Pagination: 331-333Abstract
No Abstract.Full Text
- A Note on the Rampur Window, District Mahasv, H. P.
Authors
1 93, Sector 18 A, Chandigarh, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 13, No 3 (1972), Pagination: 277-280Abstract
No Abstract.Full Text
- The 'Jaunsar' Problem in the Himalaya - A Critical Analysis and Elucidation
Authors
1 98-99-100, Sector 17-C, Chandigarh-17, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 15, No 2 (1974), Pagination: 115-136Abstract
A complex association of limestones, quartzites, slates and volcanic rocks and ashes exposed In the Garhwal Himalaya was first called as 'Jaunsar System' by Oldham. Pilgrim and West adopted the name 'Jaunsar' for their Jagas Series c - a selective quartzite-slate association, and Auden variously considered his Mandhali-Chandpur-Nagthat association of diverse lithology, and the Nagth Nagthat Series of quartzite-phyllite association as 'Jaunsar'. Later workers either adopted the classification of Pilgrim and West, or of Auden, or reclassified the Chandpur-Nagthat to include crystallines and metamorphics, without much regard to the larger stratigraphic Implications of the same. This has resulted In great confusion In the stratigraphy of the Himalayas leading to conjectural correlations of formations and hypothetical interpretation of structures.
The present study has shown that the 'Jaunsars' are variously part of the Simla group of Srikantia and Sharma or are part of the sequence of the Mandhali-Chandpur-Nagthat. The recent attempt to include rock types referable to the Jutogh as part of the Chandpur-Nagthat is mainly due to the non-recognition of a thrust contact between these two which is obscured due to post-tectonic metamorphism and deformation, and hence is not an acceptable proposition.
It is now proposed to redefine the term 'Jaunsar' and to strictly restrict it to the restored sequence of Mandhali, Chandpur and Nagthat formations. The Jaunsar group as adopted now represents a typical geosynclinal type of sediments deposited on the eroded surface of the Deoban belt. It is characterised by the association of the Bhowali volcanics and the acid intrusives of the Kharasali gneiss, and is typically eugeosynclinal. Structurally it occurs as a superficial nappe over the isopic zones of the Deoban-Simla group in the southern part of the Deoban belt.
The Jaunsar group, the Simla group and the Rampur formation are considered as contemporaneous formations in the present scheme of correlation of geosynclinal sediments In the Lesser HImalaya.
- Some Significant Palynomorphs from B Member of the Jutogh formation of Simla Hills
Authors
1 Wadia Institute of Himalayan Geology, 36 Teg Bahadur Road, Dalanwala, Dehra Dun 248001, IN
2 Birbal Sahni Institute of Palaeobotany, 53, University Rd., Lucknow 226007, IN
3 Geological Survey of India, Sector 17, HP Circle, Chandigarh 160017, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 18, No 3 (1977), Pagination: 139-146Abstract
The paper outlines the preliminary results of a palynological study of a carbonaceous phyllite sample from the B Member of the Jutogh Formation of Simla hills. Systematic descriptions are given for 5 genera and 6 species of acritarch assemblage recovered. Among the species described, five are new. Microfloral evidence favours a Lower Cambrian age for the bed.- A Note on the Occurrence of Eurydesma and Deltopecten Assemblage from the Kuling Formation (Permian) Baralacha Ban Area, Lahaul Valley, Himachal Himalaya
Authors
1 Nilofar Bldgs, Rajbagh, Srinagar-190008, IN
2 529, Sector 18-B, Chandigarh-I80018, IN
3 84-B, Nirala Nagar, Lucknow, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 19, No 2 (1978), Pagination: 73-78Abstract
This note records the occurrence of Eurydesma and Deltopecten assemblage from the Kuling Formation (Permian) of Lahaul and discusses its significance.Full Text
- Lithostratigraphic Classification of the Blaini, Infra Krol, Krol and Tal Formations-A Review
Authors
1 529, Sector 18B, Chandigarh-160018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 20, No 1 (1979), Pagination: 7-16Abstract
The Blaini, Infra Krol, Krol and Tal Formations constitute one conformable sequence. The palaeontological data pertaining to these Formations when screened collectively form an orderly pattern which suggests that the Blaini represents an Upper Carboniferous-Lower Permian; Infra Krol, Upper Permian-Lower Triassic; Krol, Upper Triassic-Uppermost Jurassic/Lowermost Cretaceous and Tal, Lower to Upper Cretaceous/Lower Palaeocene ages respectively. In this pattern the odd one out is the Permian fauna from the 'Tal '. It is surmised that the Permian fossils are not from the Tal but in all probability from the Boulder Slate Sequence (Bijni Unit) which rests as a klippe over the Tal-Nummulitic seccession.- The Tandi Group of Lahaul-Its Geology and Relationship with the Central Himalayan Gneiss
Authors
1 Nilofar, Rajbagh, Srinagar-190008, IN
2 529, Sector 18B, Chandigarh, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 20, No 11 (1979), Pagination: 531-539Abstract
The Tandi Group of Lahaul area in the Himachal Higher Himalaya represents a sequence of essentially carbonate rocks. It is underlain by chlorite phyllite representing possibly metamorphosed lava flows and overlies Precambrian-Eocambrian Batal Formation of the Haimanta Group. The Tandi Group has yielded significant fossil assemblage indicating a Permian to Triassic and possibly Jurassic age. Structurally, the Tandi Group constitutes an overturned syncline with a southwest dipping axial plane. The overturned limb has thrust imbricates suggesting a direction of movement from sw to NE.
The Tandi Group represents a major Permo-Trias marine transgression from Kashmir in NW through Bhallesh and Chamba. It has no direct relationship with the Central Crystalline Gneiss which occupies stratigraphically the deepest position in the area and forms a geanticline separating the Spiti-Zanskar basin from the Kashmir-Bhallesh-Chamba- Tandi-basins.
The Tandi rocks suffered intense deformation together with the basement rocks due to its proximity to the main orographic axis. The Precambrian-Eocambrian basement rocks have vestiges of folds older than the Himalayan folds.
- Cambrian Trace Fossils from the Spiti Valley, Himachal Himalaya
Authors
1 529, Sector 18B, Chandigarh 160 018, IN
2 47, Pandariba, Lucknow 226 001, IN
3 Gandhi Nagar, Jammu 180 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 23, No 4 (1982), Pagination: 183-191Abstract
Trace fossils Diplichnites spp., ? Dimorphichnus, Monomorphichnus spp., trilobite scratch marks, Gyrochorte, Gordia, ? Astropolithon, ? Scolicia, Planolites, Skolithos are reported from the Kunzam La Formation of the Haimanta Group of the Parahio section, Spiti valley. This fossil assemblage occurs 460m below the Middle Cambrian trilobite zone and 1620 m above Precambrian-Cambrian acritarch zone and may represent late Lower to Early Middle Cambrian age. These occur in sediments laid in a low energy environment.- Taphrohelminthopsis Circularis from Cambrian Sediments of Southeast Kashmir Valley
Authors
1 29, J. L. Nehru Road, Calcutta, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 23, No 8 (1982), Pagination: 406-407Abstract
An ichnofossil Taphrohelminthopsis circularis Crimes et af., 1977, is being reported from the (?) Cambrian sediments exposed along the Hapatnar-Hangalpau road near Hangalpau, Anantnag district, Kashmir.Full Text
- Geology of the Palaeozoic Sequence of the Kashmir Tethys Himalayan Basin in the Udder Valley, Jammu and Kashmir
Authors
1 1116, 10th Cross, Banashankari 1st Stage, II Block, Bangalore 560050, IN
2 529, Sector 18 B, Chandigarh 160018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 24, No 7 (1983), Pagination: 363-377Abstract
The Lidder Valley in Kashmir displays an excellent section of the Palaeozoic sequence of the Tethys Himalayan basin. The sequence earlier classified by Middlemiss (1910), however offers scope for revision in respect of lithostratigraphy and nomenclature. A new classification, adopting several new names, has been presented. The sequence is divided into Hapatnar Group, Chorgali Group, Lidder Group, Panjal Volcanic Group, Zewan and the Sonamarg Group in the ascending order. The paper discusses the details of lithostratigraphy, the need for new nomenclature, and the sedimentation and structure of the Tethys sequence in the Lidder Valley.- Trace Fossils from the Ordo-Silurian Rocks of Kinnaur, Himachal Himalaya
Authors
1 529, Sector 18B, Chandigarh 160018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 25, No 3 (1984), Pagination: 175-186Abstract
Ichnofossils Teichichnus, Phycodes aff. palmatum, Planolites, Ichnogenus indet. A and B, and Phycodes circinatum, P. aff. palmatum, Skolithos, Rouaultia and Planolites are being reported respectively from the basal and middle parts of the Yamrang La Formation of Ordovician age. Arthrophycus, Chondrites, Planolites, Rusophycus, Skolithos and Ichnogenus indet, C occur in the basal part of the Manchap Formation of silurian age. Phycodes circinatum Magdefrau 1934 mainly know from Lower Ordovician probably represents an Upper Ordovician age in this area.- The Jutogh Klippe of the Simla Area of the Himachal Himalaya: Its Geology and Structural Evolution
Authors
1 1116, 10th Cross, Banasankari I Stage, II Block, Bangalore 560050, IN
2 529, Sector 18-B, Chandigarh 160018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 25, No 4 (1984), Pagination: 220-230Abstract
The Jutogh klippe near simla is the highest allochthon in the Himachal Himalaya. Its base is defined by the Jutogh Thrust. Five mappable lithostratigraphic formations are recognised. These are variously represented, in the ascending order, by carbonaceous phyllite and schist of Panjerli Formation; quartzite unit of Manal Formation; phyllite, schist and quartzite of Bhotli Formation; quartzite unit of Khirki Formation and carbonaceous schist, crystalline limestone of Taradevi Formation.
S0 and S1 are the prominent planar surfaces with local development of S2 and S3. F1, F2 and F3 are the three generations of folds. F1 is in minor scale as appressed and reclined folds related to tectonic transport and F2 and F3 having formed after the emplacement of the thrust sheet. F2 is the most pervasive structure along NW-SE, folding the klippe into an open synform. F3 is a larger cross-fold along WSW-ENE and is responsible for culminations and depressions of F2 folds.
The direction of tectonic transport is from ENE to WSW and F2 folds indicate a compression along the same direction.
- 'Chail Series' of the Himachal Himalaya
Authors
1 1116, 10th Cross, Banasankari 1st Stage, II Block, Bangalore 560050, IN
2 529, Sector 18-C, Chandigarh 160018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 26, No 5 (1985), Pagination: 350-355Abstract
A critical study brings out that the 'Chail Series' broadly occurs in two tectonic positions - the 'Lower Chail allochthon' as a thrust sheet over the Shali and the' Upper Chail allochthon' as an infra-Jutogh thrust sheet. The revision mapping of the Simla area has brought out that the' Lower Chail allochthon' includes (i) a sedimentary unit occurring as a cover over the Shali and designated as the Basantpur Formation of the Simla Group and (ii) a regional nappe tectonically overlying the Shali-Simla Groups and designated as the Salkhala thrust sheet. The' Upper Chail allochthon' has been found to be part of the Jaunsar Group. Thus, the' Chail ' was never an entity and has lost its validity as a stratigraphic term. This naturally precludes its adoption even as a tectonic term.- Zoophycos from the Permian Gungri Member (Kuling Formation), Spiti Valley, Himachal Himalaya
Authors
1 529, Sector 18B, Chandigarh 160018, IN
2 98-100, Sector 17C, Chandigarh 160 017, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 26, No 2 (1985), Pagination: 137-140Abstract
Ichnogenus Zoophycos is reported from the upper part of the Gungri Member (Kuling Formation) in several sections. It occurs in a 2-3 m thick horizon 25-30 m below the contact of the Kuling Formation and Triassic Lilang Group.- Trilobite and Other Trace Fossils from the Kunzam La Formation, Eastern Lahaul Valley, Himachal Himalaya
Authors
1 529, Sector 18B, Chandigarh 160 018, IN
2 1116, 10th Cross, BSK, 1st Stage, Bangalore 560 050, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 26, No 12 (1985), Pagination: 880-886Abstract
Trilobite locomotion trail Isopodichnus sp., swimming grazing trace Monomorphichnus sp. and resting trace Rusophycus didymus are recorded from the siltstone-shale-quartzarenite sequence of the Kunzam La Formation (Cambrian) from the eastern Lahaul Valley, Himachal Himalaya. Besides these, a ringed conical ichnocoenosis is also reported.
The trilobite traces belong to Cruziana 'facies' which is characteristic of stable infra-littoral to circa-littoral zones. The presence of Rusophycus suggests a rather low energy environment.
- Plesioptyxis Sp. from the Liassic Tagling Member (Kioto Formation), Spiti Valley, Himachal Himalaya
Authors
1 529, Sector 18B, Chandigarh 160 018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 27, No 2 (1986), Pagination: 225-226Abstract
The gastropod Plesioptyxis sp., is reported from the Tagling Member (Kioto Formation) exposed near Giumal village and the upper reaches of the Lingti valley, Spiti.Full Text
- Algae from the Silurian Manchap formation, Tidong Valley (Kinnaur), Himachal Himalaya
Authors
1 529, Sector 18-B, Chandigarh, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 29, No 5 (1987), Pagination: 500-502Abstract
? Solenopora sp, indeterminate codiacid, dasyclad Vermiporella sp., and Cyanophite Girvanella sp., are reported from the Silurian Manchap Formation exposed in the Tidong Valley. The Manchap Formation in this area represents a reefoid environment.- Trace Fossils from the Palaeozoic-Mesozoic Sequence of Spiti-Kinnaur (Himachal Himalaya) With Comments on Palaeoenvironmental Control on their Frequency
Authors
1 Geological Survey of India, 98-100, Sector 17 C, Chandigarh 160 017, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 32, No 3 (1988), Pagination: 227-238Abstract
Bifasciculus and Phycodes pedum from the Cambrian Kunzam La Formation; Arthrophycus from the Silurian Takche Formation; arthropod markings and Paleophycus tubularis from the Devonian Muth Formation; Rusophycus and Skolithos from the Po Formation: Laevicyclus and Skolithos from Permian Kuling Formation; Gordia, Paleophycus A. Rhizocorallium, Skolithos and cephalopod wheeling traces from the Triassic-Liassic Lilang Group and Paieophyclis tubularis from the Jurassic Spiti Formation are recorded.
A checklist of trace fossils of the Western Higher Himalaya shows a paleoenvironmental control on trace fossil frequency. Comments on earlier described Taphrhelminthopsis circularis and Isopodiehnus are also furnished.
- Triassic Microfauna of the Lilang Group with Special Reference to Scythian-Anisian Conodonts, Spiti Valley, Himachal Himalaya
Authors
1 98-100, Sector 17-C, Chandigarh 160017, IN
2 NH-5P, NIT, Faridabad-121 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 32, No 6 (1988), Pagination: 494-505Abstract
The Triassic microfauna from the type section of the Lilang Group recorded here includes conodonts (58 taxa), foraminifera (17 taxa), ostracoda (5 taxa) and radiolaria (one taxon).Except for one form in the Carnian Sanglung Formatiqn, the conodonts are exclusive to the Scythian-Anisian Mikin Formation. The foraminifers come mainly from the Mikin, Norian Hangrang and Rhaetian-Dogger Kioto Formations. In the former two, they are rare, while in the last one common. The ostracodes chiefly occur in the Mikin Formation. The radiolarians are common in the Carnian Chomule Formation and sporadic in the Mikin Formation.
Based on microfacies analysis, the Mikin, Chomule and Sanglung Formations are interpreted to represent clear basin margin, Hangrang back-reef to fores]ope and Kioto restricted platform to edge-sand and lagoon environments. The varying abundance of the microfauna in different formations is possibly environmentally controlled. The conodonts, and radiolaria preferred basin margin, and foraminifers restricted platform to edge-sand and lagoon environments.
- The Jutogh Group of Metasediments of the Himachal Himalaya: Its Lithostratigraphy
Authors
1 1116, 10th Cross, Banasankari L Stage, II Block, Bangalore 560050, IN
2 529, Sector 18-B, Chandigarh 160 018, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 32, No 4 (1988), Pagination: 279-294Abstract
The Jutogh Group of the Himachal Himalaya is divisible into eleven formations based on normal order of superposition, lithological association, lateral persistence and systematic mapping. This study helps greatly in reconstructing the sedimentary history, structural evolution and promoting better inter-regional correlation.- The Crystalline Thrust Sheets in the Himachal Himalaya and the Age of Amphibolite Facies Metamorphism
Authors
1 S.C.O. 98-100, Sector 17-C, Chandigarh-160017, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 43, No 4 (1994), Pagination: 343-352Abstract
Three distinct crystalline thrust sheets exist in the Himachal Himalaya. These in ascending tectonic order of superposition are: (i) Kulu Thrust Sheet, (ii) Jutogh Thrust Sheet and (iii) Vaikrita Thrust Sheet. The crystalline thrust sheets show five deformations and polyphase metamorphism. The analysis of existing data suggests that there have been Precambrian deformations and attendant metamorphism. The Kulu and Vaikrita Thrust Sheets extend throughout the length of the Himalaya and the latter's equivalents consistently form the floor for the Tethyan sequences.Keywords
Igneous and Metamorphic Petrology, Precambrian, Tectonics, Himalaya, Himachal Pradesh.- The Rhomboid Protractor and its Application in the Construction of Isometric Geological Panel Diagrams
Authors
1 Chandigarh, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 14, No 1 (1973), Pagination: 101-104Abstract
No Abstract.Full Text
- National Seminar on Geological Aspects of Environment
Authors
1 103, Sector 7, Panchkula 134 109, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 54, No 3 (1999), Pagination: 316-317Abstract
No Abstract.Full Text
- Himalaya-Geological Aspects
Authors
1 camp: Bangalore, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 6 (2006), Pagination: 815-817Abstract
No Abstract.Full Text
- Late Precambrian-Early Cambrian Trace Fossils from Tethyan Himalaya, Bhutan and their Bearing on the Precambrian-Cambrian Boundary
Authors
1 Geological Survey of India, 3, Sector 33, Chandigarh - 160 020, IN
2 103, Sector 7, Panchkula - 160 018, IN
3 Geological Survey of India, Aliganj Extension, Lucknow- 226 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 62, No 6 (2003), Pagination: 708-716Abstract
Ichnofossils Arenicolites, Didymaulichnus, Gordia, Helminthopsis, Monomorphichnus, Phycodes pedum and Planolites A, B and C are described from the Late Precambrian -Middle Cambrian Pele La Group exposed in the Tang chu - Wachi La sector of the Bhutan Himalaya. The Precambrian-Cambrian boundary in this section is tentatively placed below the Phycodes pedumlevel, in the middle part of the Maneting Formation.The volcanics of the Singhi Formation, occurring at the base of the Pele La Group represent an important Neoproterozoic event.
Keywords
Trace Fossils, Precambrian-Cambrian Boundary, Bhutan Himalaya.- Non-Publication of Geological Maps - A Forced Policy or Indifferent Attitude?
Authors
1 103, Sector 7, Panchkula - 134109, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 57, No 5 (2001), Pagination: 469-471Abstract
No Abstract.Full Text
- Geological Studies in the Eastern Himalayas
Authors
1 103 Sector 7 Panchakula 134 109, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 55, No 4 (2000), Pagination: 454-455Abstract
No Abstract.Full Text
- Shanker Mohan Mathur (1918-2011)
Authors
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 78, No 4 (2011), Pagination: 394-394Abstract
No Abstract.Full Text