Daniel A. Petrash
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petrash.bsky.social
Daniel A. Petrash
@petrash.bsky.social
🔬 Researcher. Sedimentary Geochemistry | ⚒️ Unearthing Earth’s stories, one layer at a time
These factors caused transient changes in pore water composition and redox conditions, favoring the precipitation of cements like ferroan dolomite and siderite during the Miocene Climatic Optimum
October 17, 2025 at 5:55 PM
Episodic carbonate cementation in a Miocene Eger Rift paleolake was driven by a combination of climatic, hydrological, and biogeochemical factors, including increased humidity, weathering, and variable solute fluxes.
October 17, 2025 at 5:55 PM
With this dude’s “peace deals,” sudden destruction is sure to come.
October 14, 2025 at 5:08 AM
Autumn Gold in Bohemia
#Krivoklat
October 13, 2025 at 3:40 AM
Now it's covered up.

#Bansky
September 8, 2025 at 12:18 PM
September 7, 2025 at 6:40 PM
Waiting for the moon rise
#eclipse
September 7, 2025 at 5:59 PM