Evolution of C4 plants and controlling factors: Insight from n-alkane isotopic values of NW Indian Siwalik paleosols

S Ghosh, P Sanyal, R Kumar - Organic Geochemistry, 2017 - Elsevier
The δ 13 C values of long chain n-alkanes from paleosol samples (n= 74) of four NW Indian
Siwalik sections have been used to reconstruct the relative abundance of C 3-C 4 plants …

Molecular and isotopic records of C4 grassland expansion in the late Miocene

KH Freeman, LA Colarusso - Geochimica et Cosmochimica Acta, 2001 - Elsevier
Siwalik paleosol and Bengal Fan sediment samples were analyzed for the abundance and
isotopic composition ofn-alkanes in order to test for molecular evidence of the expansion of …

Substrate control of C4 plant abundance in the Himalayan foreland: A study based on inter-basinal records from Plio-Pleistocene Siwalik Group sediments

S Ghosh, P Sanyal, SJ Sangode, AC Nanda - Palaeogeography …, 2018 - Elsevier
Data from different parts of the globe including the Himalayan foreland suggest that the
expansion of C 4 plants was not synchronous and hence invoke influences of regional …

Response of grassland ecosystem to monsoonal precipitation variability during the Mid-Late Holocene: Inferences based on molecular isotopic records from Banni …

S Basu, P Sanyal, AAS Pillai, A Ambili - PloS one, 2019 - journals.plos.org
Banni, located in the arid western India, is one of the largest tropical grasslands of the Asian
continent. The net primary production in this grassland ecosystem is currently mediated by …

Morpho-tectonic control on the distribution of C3-C4 plants in the central Himalayan Siwaliks during Late Plio-Pleistocene

B Roy, S Ghosh, P Sanyal - Earth and Planetary Science Letters, 2020 - Elsevier
The Siwalik deposits of the Himalayan foreland basin (HFB) preserve the Late Miocene-
Pleistocene record of the Himalayan tectonics, monsoonal variation and the expansion of C …

Large-scale hydrological change drove the late Miocene C4 plant expansion in the Himalayan foreland and Arabian Peninsula

Y Huang, SC Clemens, W Liu, Y Wang… - …, 2007 - pubs.geoscienceworld.org
Carbon isotope changes in paleosols from Siwalik, Pakistan, and marine sediments from the
Bengal Fan indicate a major C4 plant expansion in the Himalayan foreland during the late …

The structure and rate of late Miocene expansion of C4 plants: Evidence from lateral variation in stable isotopes in paleosols of the Siwalik Group, northern Pakistan

AK Behrensmeyer, J Quade… - Geological …, 2007 - pubs.geoscienceworld.org
This study uses stable isotope variation within individual Mio-Pliocene paleosols to
investigate subkilometer-scale phytogeography of late Miocene vegetation change in …

Intensification of monsoon, microclimate and asynchronous C4 appearance: isotopic evidence from the Indian Siwalik sediments

P Sanyal, A Sarkar, SK Bhattacharya, R Kumar… - Palaeogeography …, 2010 - Elsevier
Analysis of the D/H ratio of pedogenic clay and the 18O/16O ratio of carbonate nodules
collected from Siwalik sediments in India indicates three episodes of monsoon …

Carbon isotopic ratios of modern C3–C4 plants from the Gangetic Plain, India and its implications to paleovegetational reconstruction

S Basu, S Agrawal, P Sanyal, P Mahato… - Palaeogeography …, 2015 - Elsevier
For the first time, carbon isotope ratios (δ 13 C) of plants and occluded carbon in phytoliths
were analyzed from three locations of the middle (26.5° N, 80.3° E) and lower (22.3° N …

C4 plant expansion in the Ganga Plain during the last glacial cycle: Insights from isotopic composition of vascular plant biomarkers

S Agrawal, V Galy, P Sanyal, T Eglinton - Organic Geochemistry, 2014 - Elsevier
This study aims at reconstructing the paleo-vegetation and soil organic matter (SOM)
dynamics in the Ganga Plain during 80–20 ka time interval. We studied a sediment core …