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Skiracer6 t1_j6t4ti0 wrote

Reply to comment by CrustalTrudger in Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science by AutoModerator

As a follow up, could slab window volcanism be responsible for the volcanoes in southern and eastern California such as Long Valley since it is too far south to be driven by the Cascade Subduction zone?

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CrustalTrudger t1_j6tslos wrote

It's not something that's been suggested to my knowledge and geochemically it's missing some of the hallmarks. There are suggestions of isolated slab window related magmatism in the Tahoe region (e.g., Cousens et al., 2011), but not Long Valley. Long Valley is generally associated with other magmatic systems in that part of the western Greater Basin. Their exact origins are a bit enigmatic but are largely inconsistent with slab window volcanism seen elsewhere.

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