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#rhyolitic — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #rhyolitic, aggregated by home.social.

  1. Interesting colors and contrast between #sedimentary layers and #igneous intrusions in the Gravel Hills of the #Mojave Desert.
    From Tom Dibblee (1968),
    openlibrary.org/books/OL256760
    the layers are part of the Pickhandle and Barstow formations laid down in the Miocene. The darker purplish rock is an intrusion of #rhyolitic #breccia.
    If the rock colors appear familiar you may have seen similar combinations of these formations in the Opal Mountains, Rainbow Basin, and Calico Mountains near Barstow, CA.