The tools I'm using are based on planktonic calcareous plankton fossils (mainly the foraminifera). Specifically, I use :
- Assemblages of planktonic foraminifera as a marker of paleotemperature changes
- Stable isotopic composition of these tiny shells (d18O and d13C)
- Trace metal composition (Mg/Ca mainly), in IMCS within Yair Rosenthal's group.

I'm using the Element ICP-MS from Rutgers Inorganic Analysis Lab in IMCS