David Naylor · @D_Naylor
185 followers · 68 posts · Server universeodon.com
Interesting colors and contrast between #sedimentary layers and #igneous intrusions in the Gravel Hills of the #Mojave Desert.
From Tom Dibblee (1968),
https://openlibrary.org/books/OL256760M/Geology_of_the_Fremont_Peak_and_Opal_Mountain_quadrangles_California
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.
#igneous #sedimentary #mojave #rhyolitic #breccia
Matt Brueseke · @MattTG
77 followers · 22 posts · Server mastodon.social
S_Powers · @sfoxx
212 followers · 147 posts · Server mas.to
Variscite-cemented breccia from the top of the Toquima Range in central Nevada.
#breccia #minerals #MineralMonday
TildalWave :official_verified: · @tildalwave
25 followers · 304 posts · Server infosec.exchange
Parliamo di news! · @parliamodinews
15 followers · 87537 posts · Server masthead.socialL`Anpi come nuovo partito della sinistra, l`idea di Luciano Canfora non fa breccia (di A. Raimo) - HuffPost Italia #lanpi #partito #sinistra #lidea #luciano #canfora #breccia #raimo #huffpost #italia https://parliamodi.news/article/aHR0cHM6Ly93d3cuaHVmZmluZ3RvbnBvc3QuaXQvcG9saXRpY2EvMjAyMi8wNC8yOS9uZXdzL2FucGlfcGFydGl0by05MjkxMjQxLw==
#italia #huffpost #raimo #breccia #canfora #luciano #lidea #sinistra #partito #lanpi