Mount Lowe Intrusive Suite
Mount Lowe intrusive series is a geologic formation occurring in the San Gabriel Mountains in southern California. It is composed of layered pluton exposed over a large area in western San Gabriel Mountains and northeastern Soledad Basin. The formation varies from hornblende diorite and quartz diorite in the lowest part to albite-rich granite and syenite in the upper part. Within the formation large phenocrysts of hornblende, orthoclase and garnet contribute to distinctive appearance.[1]
The formation was first named by William J. Miller as "Mount Lowe Granodiorite" in 1934.[2]
References
[edit]- ↑ Yerkes, Campbell. "Preliminary Geologic Map of the Los Angeles 30' x 60' Quadrangle, Southern California". USGS. Retrieved 13 January 2025.
- ↑ Miller, William J. (1934). "Geology of the western San Gabriel Mountains of California". Berkeley, University of California Department of Geological Sciences Bulletin.