Itay Halevy

Associate Professor










Earth & Planetary Sciences
Weizmann Institute of Science

Information on fundamental events in Earth history is encoded in the chemical and isotopic composition of sedimentary rocks. Some examples include the emergence and diversification of life, oxygenation of the atmosphere, and global-scale glaciations. The only way we can learn about such events is through observation and analysis of the geological record, which constrains also the mechanisms that govern the evolving chemistry of the oceans and atmosphere, and climate.

To extract this information, we must understand the processes responsible for generating geochemical and isotopic signals, the processes that lead to their preservation in the rock record, and those that alter the original signals to yield the observed chemical and isotopic composition of sedimentary rocks.

In my group we attempt to decode these signals by combining geochemical and geological observations, laboratory experiments, and models of variable sophistication. The problems we study span timescales of seconds to billions of years, and spatial scales of a single microbe to an entire planet.

Contact me for research opportunities related to these topics (itay.halevy@weizmann.ac.il).


Dept. of Earth & Planetary Sciences / Weizmann Institute of Science / Rehovot 76100 / Israel
Telephone: +972 8 934 6987 / Fax: +972 8 934 4124 / E-mail: itay.halevy@weizmann.ac.il