Articles | Volume 16, issue 6
Research article
23 Dec 2020
Research article |  | 23 Dec 2020

Pliocene expansion of C4 vegetation in the Core Monsoon Zone on the Indian Peninsula

Ann G. Dunlea, Liviu Giosan, and Yongsong Huang

Data sets

Organic geochemistry of Pliocene sediments in the core monsoon zone on the Indian Peninsula A. G. Dunlea, L. Giosan, and Y. Huang

Short summary
Over the past 20 Myr, there has been a dramatic global increase in plants using C4 photosynthetic pathways. We analyze C and H isotopes in fatty acids of leaf waxes preserved in marine sediment from the Bay of Bengal to examine changes in photosynthesis in the Core Monsoon Zone of the Indian Peninsula over the past 6 Myr. The observed increase in C4 vegetation from 3.5 to 1.5 Ma is synchronous with C4 expansions in northwest Australia and East Africa, suggesting regional hydroclimate controls