NEW GEOLOGIC MAPPING IN THE TENALQUOT PRAIRIE AND VAIL QUADRANGLES, WASHINGTON, INDICATES THAT CASCADE ARC VOLCANISM STARTED ABOUT 46 MA, ASSOCIATED VOLCANIC DEPOSITS LIKELY FILLED AN EOCENE FAULT-BOUNDED TACOMA BASIN NORTHEAST OF THE OLYMPIA STRUCTURE, PRE-VASHON DEPOSITS HERE EXTEND SEVERAL KILOMETERS FARTHER SOUTH THAN VASHON DEPOSITS, AND HIGH-VOLUME MELTWATER DISCHARGE MARKED THE GLACIAL ICE MARGIN
Autor: | Michael Polenz, Megan Anderson, Jeffrey H. Tepper, Gabriel Legorreta Paulín, Frank Hladky, Alison Horst, Daniel P. Miggins |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Geological Society of America Abstracts with Programs. |
ISSN: | 0016-7592 |
DOI: | 10.1130/abs/2021am-371189 |
Databáze: | OpenAIRE |
Externí odkaz: |