Geochemistry Laboratory

Instrumentation

Carbon Hydrogen Nitrogen Sulfur (CHNS) Analyzer
instrument for elemental analysis

Coulometer
instrument for determining carbonate concentration

Gas Chromatographs (GC)
instrument for determining hydrocarbons and hydrogen sulfide

Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES)
instrument for measuring elemental composition

Ion Chromatograph (IC)
instrument for determining concentrations of major cations and anions in pore water

Source Rock Analyzer (SRA)
instrument for determining thermal maturation, source of hydrocarbons and petroleum potential

UV-VIS Spectrometer
instrument for measuring ammonium, phosphate, silica, and sulfide in pore water

X-ray Diffractometer (XRD)
instrument for identifying minerals and their proportions

Laboratory user fees are available for individual instruments or the whole laboratory. For additional information, contact the GCR Curator.

Current instrument procedures and manuals reflect the JOIDES Resolution environment and are in the process of being modified to reflect the GCR shore-based laboratories.