Comparative rhyolite systems: Inferences from vent patterns and eruptive episodicities: Eastern California and Laguna del Maule
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Abstract
Distilling my experience in having field mapped in detail the volcanic fields at Laguna del Maule and Long Valley and having worked out their time-volume-composition magmatic histories, I compare and contrast the postglacial rhyolites of the former with six multi-vent eruptive sequences of rhyolite in California. Compilations and discussions are made of volcanic-field areas and longevities, their compositions, vent distributions, individual batch and total volumes, eruptive episodicities, and tectonic influences. Growth of long-lived pluton-scale reservoirs of granitic crystal mush, from which the rhyolite melts separated, are interpreted in terms of conceptual models I published previously—(1) fundamentally basaltic transcrustal magmatism, 1981; (2) the deep-crustal MASH zone model, 1988; and (3) the rhyolite-melt crystal-mush model, 2001. Inferences and speculations are advanced concerning processes and timescales of rhyolite-melt separation from granitic mush and of prompt or long-delayed subsequent eruption.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Comparative rhyolite systems: Inferences from vent patterns and eruptive episodicities: Eastern California and Laguna del Maule |
| Series title | Journal of Geophysical Research |
| DOI | 10.1029/2020JB020879 |
| Volume | 126 |
| Issue | 7 |
| Year Published | 2021 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Volcano Science Center |
| Description | e2020JB020879, 53 p. |
| Country | Argentina, Chile, United States |
| State | California |
| Other Geospatial | Laguna del Maule (LdM) volcanic field, Mono Lake basin |
| Google Analytic Metrics | Metrics page |