Yair Rosenthal


Paleoclimatology, Paleoceanography, Geochemistry
Phone: 732-932-6555

E-mail: rosentha@marine.rutgers.edu



The overarching motivation for my research is to understand mechanisms of climate change. As the ocean plays a key role in climate dynamics, a full understanding of the complexity of climate change requires thorough knowledge of variations in ocean hydrography (e.g., seawater temperature and salinity) and circulation in the past. Throughout my career, I have endeavored to develop new geochemical proxies that offer quantitative information of past ocean properties, which will allow for rigorous paleoceanographic reconstructions in a similar manner to that conducted with modern data. I have been a leader in the development of Mg/Ca proxies for reconstructing seawater temperature. The main advantage of this proxy is that paired δ18O and Mg/Ca measurements on the same foraminiferal shells offer new prospects for reconstructing seawater temperature and δ18O composition and, given certain assumptions, changes in sea level and/or salinity.

My research in the past few years increasingly has been concerned with several topics:

      1) Trace metal geochemistry in biogenic carbonates
      2) Climate variability in the western equatorial Pacific
      3) Cenozoic Paleoceanography
      4) Trace metal cycling in estuarine environments

In pursuit of these interests, my group has carried out several field programs comprised of six long coring cruises (Hawaii, 1998; Indonesia, 2003; Norwegian Sea, 2004; Cape Hatteras, 2004; New Zealand, 2005; Timor Sea 2006) that collected surface sediments and high-sedimentation rate cores from key ocean locations.