Annual Report 2011-2012 - Birbal Sahni Institute of Palaeobotany

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EBIRBAL SAHNI INSTITUT 1946 OF PALAEOBOTANY Annual Report 2011-2012 Project—Hydrological changes in western Himalayan region during the last millennium (sponsored by DST, New Delhi; No. SR/S4/ES-468/2009) Tree ring samples of Pinus roxburghii from various sites around Purola, Uttarakhand and Pinus gerardiana from Kinnaur, Himachal Pradesh have been collected. The samples are cross dated and ring-widths measured. R.R. Yadav & B. Sekar Project— Development of long-term high-resolution climate records for western Himalaya, India using multi proxy tree-ring parameters (sponsored by ISRO-GBP) Junior Research Fellow appointed in the project is trained to take up the research work under the project. R. R. Yadav Project—Tectono-climatic variations during Late- Quaternary in the Tangtse Valley, Ladakh, NW India (sponsored by DST, New Delhi; No. SR/FTP/ES-123/ 2009) As per the objectives several exposed sedimentary profiles in the Tangtse River valley were mapped during one month’s field work in that area. The sediments exposed along the valley are lacustrine, aeolian, alluvial plains, colluvial deposits and flood plain deposits. Presence of strath terraces, offset of streams (200-400m); wide valley filled with debris flow, abandoned channels, 2 levels of river terraces (T1-14m and T2-7m) and fluviolacustrine sediments at 4280m elevation, all indicate active nature of KKF in the area. The drainage shows a tectonic control and the Gradient Index (GI) values also point to the activity along the fault lines in the area. Lacustrine sediments are exposed along the Tangtse river on both banks almost continuously at about 40-50m above the present day river. The fossil bed of 80 cm was seen. The fossils/subfossils were picked up and were identified up to class level and for further investigation is ongoing in collaboration with Dr. Rajeev Patnaik, Panjab University. This will give us a precise chronology of these deposits as in the Quaternary sediments till now we were not able to get reliable ages due to the low organic content. The samples have been prepared by coning quartering method for LOI data. Samples from ~ 25 m of the section (418 samples) have already been analyzed. The samples were also prepared for mineral magnetic analysis. Binita Phartiyal & Randheer Singh Project—Integrated nannofossil-ammonite biostratigraphy of Wagad Island, Kachchh Basin: Palaeoenvironmental and palaeobiogeographic implications (sponsored by DST, New Delhi; No. SR/ S4/ES-521/2010(G)) Initiated work on the project from September 2011. A field excursion to Kachchh area was conducted and samples were collected from (Bharodia section in Kantkot Dome, Patasar shale near Patasar water tank, Chitrod Dome, Shivlakha Dome, Washtawa Dome, Nara Dome) of Wagad Highland. Besides this, Lodrani section of Bela Island, Amarapur section of Khadir Island, Kuar Bet and Sadahra Dome sections in Pachchham Island were also covered and samples from Matanomadh section were also collected. Jyotsana Rai & Abha (& Rahul Garg) Project— Biosphere across Vendian-Cambrian and Permian-Triassic Periods and their response to Global Late Proterozoic and Late Palaeozoic glaciations (DST-RFBR project Research-INT/RFBR/ P-102/1 dated 29/08/2011) One Research Associate has been appointed, under this joint Indo-Russian project. Stromatolite from the Mussoorie Syncline has been sectioned for study and thin sections of the chert nodules are being scanned for ECAP acritarchs. Permian and Triassic plant assemblages from the Tatapani-Ramkola Coalfield in central India have been worked out and analyzed. The flora was recorded from thirteen different outcrops in the Barakar, Raniganj (Permian) and Panchet (Triassic) Formations. The taxonomical composition of the flora includes 15 genera and 52 species. The composite assemblage demonstrates that the vegetation during the Late Permian was dominated by highly diversified Glossopteris flora. Thus, it is inferred that the plant life was only transformed near the vicinity of the Permian-Triassic Boundary (PTB) in the Tatapani-Ramkola Basin and did not become completely extinct. Mukund Sharma, K.J. Singh, Rajni Tewari & A.S. Rathore [& V.N. Sergeev & S.V. Naugolnykh, GIN, Moscow (Russia)] Project—Analysis of climatic changes during the Quaternary from glacial sites in India based on multiproxy data (sponsored by DST, New Delhi; No. DST/ CCP/PR/07/2011(G), dated October 2011). Appointment of project staff (two JRFs and one Project Assistant) has been undertaken. Training to the staff has been imparted regarding maceration of Quaternary sediments. Preparations for field excursion to Chaurabari and Hamtah glaciers have been initiated. N.C. Mehrotra, Ratan Kar & A. Bhattacharyya 50 www.bsip.res.in
EBIRBAL SAHNI INSTITUT Annual Report 2011-2012 Research Papers Published 1946 OF PALAEOBOTANY Refereed Journals Agarwal KK, Sharma A, Jahan N, Prakash C & Agarwal A 2011. Occurrence of pseudotachylites in the vicinity of South Almora Thrust Zone, Kumaun Lesser Himalaya. Curr. Sci. 101: 431-434. Babu R. & Singh VK 2011. Record of aquatic carbonaceous metaphytic remains from the Proterozoic Singhora Group of Chhattisgarh Supergroup, India and their significance. J. Evol. Biol. Res. 3(5): 47-66. Beimforde C, Schäfer Nadine, Dörfelt Heinrich, Nascimbene PC, Singh H, Heinrichs Jochen, Reitner Joachim, Rana RS & Schmidt AR 2011. Ectomycorrhizae from a Lower Eocene angiosperm forest. New Phytologist 192: 988-996. Bera SK, Basumatary SK & Brahma M 2011. Interplay between pollen and vegetation in and around Dhir beel, Dhubri District, Assam: a future potential Ramsar site. J. Indian Bot. Soc. 90: 159-164. Bera SK, Basumatary SK & Gogoi B 2011. Pollen analysis and its implications in climate change and vegetation succession in recent past: evidence from surface and subsurface fluvial sediment of tropical forests of eastern Assam, North east India. J. Frontl. Res. Arts & Sci. 1: 62-74. Bera SK, Basumatary SK, Nautiyal CM, Dixit S, Mao AA & Gogoi R 2011. Late Holocene climate and vegetation change in Dzuko valley, North east India. J. Palaeontol. Soc. India 56: 143-148. Bera SK, Dixit S, Saini DC & Sekar B 2011. Impact of metal concentration and pollen preservation in Copper and Manganese ore rich soil from Balaghat District, Madhya Pradesh: Mineral indicator plants and fungal remains. Int. J. Earth Sci. & Eng. 4: 719-724. Bera SK, Nawaz Ali S, Rameshwar Bali R & Agarwal KK 2011. Impact of pollen rain from the vegetation of Alpine-Subalpine Belt as a reliable measure for palaeoclimatic interpretation: A case study from Pindari Glacier, Kumaun Himalaya, India. Int. J. Earth Sci. & Eng. 4: 1010-1019. Bernardes-de-Oliveira ME, Mune SE, Sucerquia P, Garcia MJ, Guerra Sommer, Margot, Schimidt IB & Tewari R 2011. Mesophytic Gondwanan paleofloras from www.bsip.res.in Brazil and India: Composition and palaeoclimatic approach. Paleontologia:Cenários de Vida 4: 33- 44. Bhattacharyya A, Mehrotra N & Shah SK 2011. Holocene vegetation and climate of South Tripura based on palynological analysis. J. Geol. Soc. India 77: 521- 526. Bhattacharyya A, Ranhotra PS & Gergan JT 2011. Vegetation vis-à-vis climate and Glacier history during 12,400 to 5,400 yr BP from Dokriani valley, Garhwal Himalaya, India. J. Geol. Soc. India 77: 401-408. Chandra Singh M, Kushwaha RAS, Srivastava G & Mehrotra RC 2011. Plant remains from the Laisong Formation of Manipur. J. Geol. Soc. India 79: 287- 294.. Chauhan MS & Murthy S 2011. Melittopalynological investigation of honeys from Chamaraja nagara district, Southern Karnataka, India. Geophytology 39: 41-47. Chauhan MS & Trivedi A 2011. Pollen analysis of honey from Lucknow District, Uttar Pradesh. J. Appl. Biosci. 37: 48-51. Dixit S & Bera SK 2011. Mid-Holocene vegetation and climatic variability in Tropical deciduous Sal (Shorea robusta) forest of Lower Brahmaputra valley, Assam, Northeast India. J. Geol. Soc. India 77: 419-432. Dixit S & Bera SK 2012. Holocene climatic fluctuation from lower Brahmaputra floodplain of Assam, Northeast India. J. Earth Syst. Sci. 121: 135-147. Dutta S, Tripathi SKM, Mallick M, Mathews RP, Greenwood PF, Rao MR & Summons RE 2011. Eocene out-of-India dispersal of Asian Dipterocarps. Rev. Palaeobot. Palynol. 166: 63-68. Engel MS, Grimaldi DA, Nascimbene PC & Singh H 2011. The Termites of Early Eocene Cambay amber, with the earliest record of the Termitidae (Isoptera). ZooKeys. 148: 105-123. Engel MS, Grimaldi DA, Nascimbene PC & Singh H 2011. Webspiners in Early Eocene amber from western India (Insecta, Embiiodea). ZooKeys. 148: 197-208. Farooqui A, Kumar A & Swindles GT 2012. Thecamoebian communities as proxies of seasonality 51
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Contents Foreword .................
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Foreword The Birbal Sahni Institute
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Research Highlights Birbal Sahni In
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Annual Report 2011-2012 - Birbal Sahni Institute of Palaeobotany

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