#magmamingling — Public Fediverse posts
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Magmatic Enclaves
Magmatic enclaves are inclusions usually within felsic (lighter) igneous rocks, and are generally more mafic (darker) in composition and are caused by mingling of magmas in the magma chamber.
These look like fishes swimming with the current and appear to have experienced some shearing. Note also the lighter dikes cutting across some of the enclaves. Remember cross-cutting relationships? The dikes are younger than the rock it cuts.
https://geologyistheway.com/igneous/magma-mingling-and-mixing/
Photo from: https://users.monash.edu.au/~weinberg/Pages/Serrapilheira_2018/Pluton_growth.htm
#MagmaticEnclaves #Enclaves #MagmaMingling #geology #Science