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Person

Judith E Fierstein

Research Geologist
Volcano Science Center

Email: jfierstn@usgs.gov
Office Phone: 650-329-5202
Fax: 650-329-5203
ORCID: 0000-0001-8024-1426

Location
GSA Bldg 2
345 Middlefield Road
Mail Stop 910
Menlo Park , CA 94025
US

Supervisor: Andrew T Calvert
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A database of geologic map of Three Sisters Volcanic Cluster as described in the original abstract: The geologic map represents part of a late Quaternary volcanic field within which scores of eruptions have taken place over the last 50,000 years, some as recently as ~1,500 years ago. No rocks of early Pleistocene (or greater) age crop out within the map area, although volcanic and derivative sedimentary rocks of Miocene and Pliocene age are widespread to the east and west and are certainly buried beneath the younger volcanic field. Of the 145 volcanic map units described herein, only 22 are certainly older than late Pleistocene (>126 ka), and 12 are postglacial (<15 ka). The oldest unit identified yields an age...
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