Picture of Jake
Jacob B. Lowenstern, Ph.D.
U.S. Geological Survey
Volcano Hazards Team, Mail Stop 910
345 Middlefield Road
Menlo Park, CA 94025
Phone: 650-329-5238
Fax: 650-329-5203


This web site contains links to the following areas:

Melt Inclusion Page: This page describes how silicate melt inclusions are used to study volatile elements in magmas. These include, water, carbon dioxide, sulfur and chlorine.

Magmatic Volatiles (Two review papers on CO2 and Cl).

Software (Norms and Volatiles).

Research at Medicine Lake Volcano, CA.

The Yellowstone Volcano Observatory

Gas geochemistry of The Geysers geothermal system

Photos, geology and geochemistry of the Alid volcanic center, Eritrea.

A volcano story: 24 September 1986: Mt. Etna

USGS Volcano Hazards Program.


Professional Information:

Professional Interests: Geology and Geochemistry of Magma-Hydrothermal Systems.

Laboratory Facilities (Room 3013 of Building 15) : FTIR/Raman Spectrometer with Attached IR-microscope. Optical Microscope with Video Capture System.

Current Field Areas: Yellowstone National Park (Scientist-in-Charge of YVO), Medicine Lake volcano, CA; The Geysers steam field, CA; Alid volcanic center, Eritrea, northeast Africa,

Ph.D. 1992, Stanford University;
M.S. 1990 Stanford University;
A.B. 1986 Dartmouth College



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