Distribution of the late Cenozoic Volcanic vents in the Cascade Range: volcanic arc segmentation and regional tectonic considerations
Guffanti M and Weaver CS. 1988. Distribution of the late Cenozoic Volcanic vents in the Cascade Range: volcanic arc segmentation and regional tectonic considerations. Journal of Geophysical Research. 93(B6):6513-6529
The relationship of the subduction of the Juan de Fuca plate system and extension of the Basin and Range province, and the distributions of around 4000 volcanic vents formed since 16 Ma in the Cascade Range was the focus of the study. Spatial, temporal, and compositional distributions of the volcanic vents were focused on. From the spatial distribution of approximately 3000 vents formed since 5 Ma, the Cascade Range can be divided into five segments; with the High Lava Plains making up a sixth. The volcanic segments appear to be a reflection of the variable geometry of the Juan de Fuca subducting slab. There is a marked lack of vents between Mount Shasta and Lassen centers, found between the Juan de Fuca and Gorda North plates.
- Type
- Journal Article
- Authors
- Guffanti, M; Weaver, C
- Units
- LAVO
- Keywords
- Arc segmentation, Cascade Range, Cenozoic, Lassen Peak, Mount Shasta, Physical Sciences, Plate Tectonics, volcanic vents