Entries by Joyeeta Bhattacharya

Paleoceanography and Paleoclimatology: Size‐fraction‐specific stable isotope variations as a framework for interpreting early Eocene bulk sediment carbon isotope records

Carbon isotope (δ13C) records from marine sediments have been extensively used in Cenozoic chemostratigraphy. The early Paleogene interval in particular has received exceptional attention because negative carbon isotope excursions (CIEs) documented in the sedimentary record, e.g. at the Paleocene Eocene Thermal Maximum (PETM), ca ∼56 Ma, are believed to reflect significant global carbon‐cycle perturbations during […]

SedGeo: Eocene carbonate accumulation in the north-central Pacific Ocean: new insights from Ocean Drilling Program Site 1209, Shatsky Rise

Joyeeta Bhattacharya and Gerald R. Dickens Major climate transitions and perturbations in global carbon cycle are known to have occurred during the Eocene, between 56 and 34 million years ago (Ma). A series of carbon isotope excursions (CIEs) mark variations in the global carbon cycle and changes in climate through early Eocene. Paleocene-Eocene Thermal Maximum(PETM) […]


The AAPG Canada Region welcomed Rice AAPG Student Chapter for a four day guided transect through the Canadian Rockies. This trip was supported in part by funds provided by SHELL. Trip Leaders: Dr. Clinton Tippett (Geoscience Leader), Dr. Kevin Root (Geoscience Leader) and Dr. Malcolm Ross (SHELL – Rice University) Assistant trip leaders: Lacey Pyle […]