| Title | Geology of Medicine Lake Volcano, California |
|---|---|
| Authors | Ciancanelli, Eugene V. |
| Year | 1983 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Exploration; USA; California; Cascade; Geology; Structure; Mercury; Lithology |
| Abstract | Medicine Lake volcano is a Quaternary bimodal shield volcano of the Cascade Range in California. The volcano possesses a shallow silicic magma chamber which during the last 1,300 years has erupted voluminous rhyolitic lavas over a broad area. Intense faulting on the volcano has produced numerous open fissures during the last several thousand years. The extensive fault network provides an excellent fracture reservoir potential. Geologic and geochemical studies have defined areas of intense faulting with associated volcanism and anomalous mercury concentrations which suggest the presence of high subsurface temperatures. |