Thomas Winslow Sisson, PhD
I am a research geologist with the USGS Volcano Science Center. I have spent many years working on the geologic history and volcano hazards of Mount Rainier. My research interests include experimental petrology and volatile solubility of magmas.
Education and Certifications
Ph.D. Massachusetts Institute of Technology
M.S. UC Santa Barbara
B.S. Stanford University
Science and Products
Filter Total Items: 55
History and hazards of Mount Rainier, Washington History and hazards of Mount Rainier, Washington
Mount Rainier is an active volcano that first erupted about half a million years ago. Because of Rainier's great height (14,410 feet above sea level) and northerly location, glaciers have cut deeply into its lavas, making it appear deceptively older than it actually is. Mount Rainier is known to have erupted as recently as in the 1840s, and large eruptions took place as recently as about...
Authors
Thomas W. Sisson
Geologic road guide to Kings Canyon and Sequoia national parks, central Sierra Nevada, California Geologic road guide to Kings Canyon and Sequoia national parks, central Sierra Nevada, California
No abstract available.
Authors
James Gregory Moore, Warren J. Nokleberg, Thomas W. Sisson
Geologic map of the Giant Forest quadrangle, Tulare County, California Geologic map of the Giant Forest quadrangle, Tulare County, California
No abstract available.
Authors
Thomas W. Sisson, James Gregory Moore
Triple Divide Peak quadrangle, Fresno and Tulare counties, California— Analytic data Triple Divide Peak quadrangle, Fresno and Tulare counties, California— Analytic data
No abstract available.
Authors
Thomas W. Sisson
Garnet/high-silica rhyolite trace element partition coefficients measured by ion microprobe Garnet/high-silica rhyolite trace element partition coefficients measured by ion microprobe
Garnet/liquid trace element partition coefficients have been measured in situ by ion microprobe in a rhyolite from Monache Mountain, California. Partition coefficients are reported for La, Ce, Nd, Sm, Dy, Er, Yb, Sc, Ti, V, Cr, Sr, Y, and Zr. The in situ analyses avoid the problem of contamination of the garnet phase by trace element-rich accessory minerals encountered in traditional...
Authors
Thomas W. Sisson, Charles R. Bacon
Geologic map of the Triple Divide Peak quadrangle, Tulare County, California Geologic map of the Triple Divide Peak quadrangle, Tulare County, California
No abstract available.
Authors
James Gregory Moore, Thomas W. Sisson
Geologic map of the Kern Peak quadrangle, Tulare County, California Geologic map of the Kern Peak quadrangle, Tulare County, California
No abstract available.
Authors
James Gregory Moore, Thomas W. Sisson
Science and Products
Filter Total Items: 55
History and hazards of Mount Rainier, Washington History and hazards of Mount Rainier, Washington
Mount Rainier is an active volcano that first erupted about half a million years ago. Because of Rainier's great height (14,410 feet above sea level) and northerly location, glaciers have cut deeply into its lavas, making it appear deceptively older than it actually is. Mount Rainier is known to have erupted as recently as in the 1840s, and large eruptions took place as recently as about...
Authors
Thomas W. Sisson
Geologic road guide to Kings Canyon and Sequoia national parks, central Sierra Nevada, California Geologic road guide to Kings Canyon and Sequoia national parks, central Sierra Nevada, California
No abstract available.
Authors
James Gregory Moore, Warren J. Nokleberg, Thomas W. Sisson
Geologic map of the Giant Forest quadrangle, Tulare County, California Geologic map of the Giant Forest quadrangle, Tulare County, California
No abstract available.
Authors
Thomas W. Sisson, James Gregory Moore
Triple Divide Peak quadrangle, Fresno and Tulare counties, California— Analytic data Triple Divide Peak quadrangle, Fresno and Tulare counties, California— Analytic data
No abstract available.
Authors
Thomas W. Sisson
Garnet/high-silica rhyolite trace element partition coefficients measured by ion microprobe Garnet/high-silica rhyolite trace element partition coefficients measured by ion microprobe
Garnet/liquid trace element partition coefficients have been measured in situ by ion microprobe in a rhyolite from Monache Mountain, California. Partition coefficients are reported for La, Ce, Nd, Sm, Dy, Er, Yb, Sc, Ti, V, Cr, Sr, Y, and Zr. The in situ analyses avoid the problem of contamination of the garnet phase by trace element-rich accessory minerals encountered in traditional...
Authors
Thomas W. Sisson, Charles R. Bacon
Geologic map of the Triple Divide Peak quadrangle, Tulare County, California Geologic map of the Triple Divide Peak quadrangle, Tulare County, California
No abstract available.
Authors
James Gregory Moore, Thomas W. Sisson
Geologic map of the Kern Peak quadrangle, Tulare County, California Geologic map of the Kern Peak quadrangle, Tulare County, California
No abstract available.
Authors
James Gregory Moore, Thomas W. Sisson