Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Naresh C. Mehrotra"'
Autor:
Rakesh C. Mehrotra, Paul J. Valdes, Robert A. Spicer, Tao Su, Gaurav Srivastava, Zhe-Kun Zhou, Frédéric M.B. Jacques, Jian Yang, Teresa E.V. Spicer, Nan Crystal Arens, David C. Steart, Elizabeth M. Kennedy, Naresh C. Mehrotra, Alexei B. Herman, Jiangshan Lai
Publikováno v:
Global Ecology and Biogeography. 24:1113-1125
Aim Early in their evolution, angiosperms evolved a diversity of leaf form far greater than that of any other group of land plants. Some of this diversity evolved in response to varying climate. Our aim is to test the global relationship between leaf
Publikováno v:
Journal of the Geological Society of India. 84:442-448
An assemblage of structurally preserved organic-walled microfossils (OWMs) from the macerated residue of black carbonaceous shale belonging to Saradih Formation, the youngest carbonate horizon of the Raipur Group, Chhattisgarh Supergroup exposed at o
Autor:
Teresa E.V. Spicer, Robert A. Spicer, Rakesh C. Mehrotra, Naresh C. Mehrotra, Gaurav Srivastava, Madhav Kumar
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. :143-162
The sedimentology, palynofacies and pollen and spore assemblages, together with observations on the preserved megaflora, from the Tirap coal mine, Assam, India (27° 17′ 20″ N, 95° 46′ 15″ E) provide important insights into the composition a
Autor:
Gaurav Srivastava, Naresh C. Mehrotra, Jian Yang, Robert A. Spicer, Teresa E.V. Spicer, Rakesh C. Mehrotra, Madhav Kumar
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. :130-142
The fossil megaflora, from the late Oligocene deltaic sediments exposed in the Tirap coal mine, Assam, India (27° 17′ 20″ N, 95° 46′ 15″ E), laid down at a palaeolatitude of 10–15° N, records the composition and climate of tropical veget
Publikováno v:
Journal of the Geological Society of India. 78:167-174
Palynological analysis of the subsurface sediments from the bore hole 1008 (PK-6&7 blocks) from Manuguru area of Godavari graben has revealed the presence of Early Triassic palynoflora. Quantitative and qualitative palynological analysis of the produ
Autor:
Neerja Jha, Vartika Singh, Anjum Farooqui, Dhruv Sen Singh, Ratan Kar, Naresh C. Mehrotra, Rajni Tewari
Publikováno v:
Journal of the Geological Society of India. 78:109-116
Subsurface sediments of a 120 cm deep trench from Ny-Alesund, Svalbard, were analysed for pollenspores and other organic matter contents. This study is supported by two AMS 14 C dates (27, 200 yrs BP and 8,762 yrs BP) at the bottom and topmost litho-
Publikováno v:
Episodes. 34:109-118
Microscopic charcoal preserved in sediments of the Lashly Formation (Middle to Late Triassic) of South Victoria Land (SVL), Antarctica provides a proxy record of palaeofire. These charred fragments derived from wood and leaf pieces along with spores
Autor:
Gaurav Srivastava, Sreelekha De Bera, Robert A. Spicer, Rakesh C. Mehrotra, Teresa E.V. Spicer, Naresh C. Mehrotra, Jian Yang, Subir Bera
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 302:381-395
Palaeoclimate estimates derived from plant-based proxies are potentially subject to uncertainties arising from taphonomic filtering. In any given fossil assemblage it is possible to identify the kinds of likely taphonomic influences, but virtually im
Publikováno v:
Journal of the Geological Society of India. 77:137-148
42 genera of palynomorphs have been reported from the qualitative and quantitative analysis of the palynoflora from both open cast mine and bore holes viz., Ballarpur open cast mine, Durgapur open cast mine and Bore hole CMWNM-57 on barrier between K
Publikováno v:
Journal of the Geological Society of India. 75:364-379
This paper presents an updated account of palynostratigraphic, source rock evaluation and palaeoenvironment data on Western Offshore and Krishna Godavari (K-G) Basins. Forty three dinoflagellate biohorizons have been identified in the Tertiary subsur