Diksha Bista

Diksha Bista

University of Bristol, UK

diksha.bista@bristol.ac.uk

Area of interest/ passion

  • Geochemistry
  • Paleoclimatology
  • Paleooceanography
  • Sedimentology

Languages spoken:

English, Nepali, Hindi

Background:

I completed my undergraduate degree in the Earth and Space Science, focusing in geology and oceanography, from Jacobs University Bremen, Germany. After which, I joined the Department of Oceanography at Dalhousie University, Canada where I graduated with a MSc in geological oceanography in 2015. Since then I have been a part of PRIDE as an early stage researcher.

Description of your project:

My role in PRIDE is to reconstruct the connectivity history between different Pontocaspian basins (Black Sea and Caspian Sea) using strontium isotope ratio (87Sr/86Sr) for the last two million years. Strontium isotope ratio for different water sources have different signature, thus making it an ideal tool to examine connectivity/isolation events between the basins. The Sr ratio will be measured on ostracods, collected from well-dated sediments across the Pontocaspian region. In addition, present-day Sr ratio will be measured on various Pontocaspian rivers and lakes to understand how these river system may have influenced the basin through time. Together with biological records and sedimentological analysis performed by other ESRs, the data produced from my project will be incorporated in model simulations to reconstruct and test a robust hydrological budget of the region.