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Mount Lowe intrusive series

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This is an old revision of this page, as edited by GeorgeCoffey (talk | contribs) at 06:29, 13 January 2025 (Created article based on USGS description). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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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. It was first studied and described by Perry L. Ehlig. 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.

References

  1. Yerkes, Campbell. "Preliminary Geologic Map of the Los Angeles 30' x 60' Quadrangle, Southern California". USGS. Retrieved 13 January 2025.