Geochemistry and Geochronology

Geochemistry Division forms an integral part of CSIR-NGRI and is involved in various research programs related to the earth's crust and its interior. The activities are focused to better understand the geodynamic evolution of the earth's crust, potentiality and the genesis of ore deposits across the country. The approach towards addressing these complex scientific problems involves multi-disciplinary studies that include field geology, petrography, whole rock geochemistry, mineral geochronology (U-Pb zircon, phosphates and Pb-Pb baddellyite) and radiogenic isotopes. The group contributed immensely in past decade towards understanding the evolution of Archean continental crust in southern India, the origin of Early life, gold and iron mineralization, depositional environments. The geochemistry division has state-of-the art analytical facilities, and has long standing successful collaborations with reputed international research groups.
The primary focus of The geochronology and radiogenic isotopic research at CSIR-NGRI is on Zircon (ZrSio4) from a wide range of stratigraphic and tectonic settings encompassing the different geographic domains of India, understanding the linkage between surface processes, volcanism, sedimentation and tectonics during the Quaternary Period utilizing the geologic record of the Indian sub-continent, both online and offshore and evolution of atmospheric Oxygen, since the Early Archean. This research work is synergised by a combination of Q-ICPMS, MC-ICPMS, 213 nm ND-YAG LA System, EPMA and SEM-CL.