Catastrophic flooding and eruption of ash-flow tuff at Medicine Lake volcano, California
Geology
By: J. M. Donnelly-Nolan and K. M. Nolan
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Abstract
Catastrophic flooding has eroded a discontinuous network of oversized anastomosing channels on the northwest flank of the Medicine Lake volcano. Most of these previously unrecognized channels were cut into an andesitic ash-flow tuff; boulders as large as 2 m in intermediate diameter were moved in terrain where little rain falls today and stream erosion is nonexistent or minimal. The flooding was probably triggered by eruption of andesite tuff through a late Pleistocene ice cap on the volcano, about 60,000 to 70,000 or about 130,000 B.P.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Catastrophic flooding and eruption of ash-flow tuff at Medicine Lake volcano, California |
| Series title | Geology |
| DOI | 10.1130/0091-7613(1986)14<875:CFAEOA>2.0.CO;2 |
| Volume | 14 |
| Issue | 10 |
| Year Published | 1986 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 4 p. |
| First page | 875 |
| Last page | 878 |
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