

Brown rhyolite?
I have this sample which corresponds to a volcanic dome. The rock appears to be a rhyolite with a porphyritic texture of plagioclase minerals, but I have never before seen a rhyolite with this matrix color.
Best software
In ur opinion and experience which one is the best software for 3D inversion ?For whatever method
Is crazy to buy this instrument ?
I found it in a Chinese market delivery app, i really want only for fun and love to exploration geophysics but idk
Gravity
Hello everyone, I'm a geology student and I'm doing my thesis using gravimetry to estimate the geometry of a pluton. The problem is that during the data collection campaign, they didn't use differential GPS, so the uncertainty in the elevation data is high. Any recommendations? Similar cases?
Fault in sedimentary rocks
Fm. bahia Inglesa, Atacama, Chile.
Limestones and sandstones
Fm Bahia Inglesa (English bay) , Chile
New and old alluvial deposit
Clay sediments from two alluvial events in Atacama, north of Chile.