JessFeb 3, 2025
Another episode of, “What is this rock.” Starring: Me. #igneousgeologynerd #ignimbrite #vallescaldera #newmexicorocks #riogranderiftvolcanics
Show threadChris WhiteFeb 3, 2023
@vickyveritas I confess I’m not sure what ignimbrite really means, in terms of mineralogy or deposition. But I have a photo of a possible #lapilli tuff in the #Blackstone Group in #RhodeIsland (that I’ve posted before, it’s associated with mafic pillows but appears felsic).
#igneous #ignimbrite #fujifilm #XH1 27mm f/2.8 f/8 1/125 s ISO 800
Vicky VeritasFeb 2, 2023

An ignimbrite is a rock formed from hot pyroclastic flows. The groundmass is primarily flattened glass shards from pumice that are pulverized during eruption. Ignimbrites can contain flattened lens-shaped clasts, called fiamme (Italian for flame) of other material, usually pumice. Ignimbrites can have a variety of colors and clast materials and sizes. They are beautiful, but you wouldn’t want to be too close as they are being formed! See more at the link below!

Sand Atlas Ignimbrite: https://www.sandatlas.org/ignimbrite/

#Ignimbrite #PyroclasticFlow #Fiamme #geology #Science

Ignimbrite - Igneous Rocks

Pictures, Definition, Classification, Composition, Formation, Geology, Occurrence, and Uses of Ignimbrite.