Volatiles and Fluids in Subduction Zones

Melt inclusions are analysed by

• EMA at IFM-GEOMAR for major elements, S, and Cl

• Volatile elements (H₂O, CO₂, halogens, S) and trace elements by SIMS instruments at GfZ Potsdam and at the Russian Academy of Sciences in Yaroslavl

• high-resolution laser-ablation ICP-MS at the Institute for Geosciences University of Kiel for trace elements in volcanic glasses (both matrix glasses and melt inclusions)

 

For whole-rocks, we use 

• XRF for major and trace elements

• Solution ICP-MS trace element and REE analyses are performed at the University of Kiel, Institute for Geosciences, and the University of Bremen, Geosciences Department. 

• Isotopic compositions (Sr, Nd, Pb, Hf) are obtained by thermal ionisation mass spectrometry (TIMS) at IFM-GEOMAR.

 

 

Geochronology of eruptive activity is established by ¹⁴C-dating of organic material contained in tephra deposits, performed at Leibniz Laboratory for Radiometric Dating and Stable Isotope Research; and by single-crystal ⁴⁰Ar/³⁹Ar-dating in IFM-GEOMAR's geochronology lab.