Two days at Seaton.
#lovedevon #seaton #geology #unconformity #gooddaysout

Summit Spring Wash, Washington County, Utah, USA. 37°05'18"N 113°51'14”W. Tapeats Sandstone (Lower Cambrian) deposited in nearshore environment as the coarse grained facies of the transgressing Cambrian Sea. Gneiss, schist and pegmatite (Paleoproterozoic) … upper contact referred to as “The Great Unconformity” in the Grand Canyon region. Utah Geological Survey Map 242.

The Great Unconformity… The lighter colors in the foreground are the lower Cambrian Tapeats Sandstone. The orange/red are Paleoproterozoic gneiss and schist. The unconformity spans 1.2 billion years. See alt for location and reference.
#Photography #Geology #Unconformity #Stratigraphy #UtahGeology

This is the first video I've seen of someone actually making their way down the steep hill at Siccar Point. #geology #JamesHutton #unconformity www.youtube.com/watch?v=Rx-n...

Students standing on rock outcrop

Here is what a 1.2 billion year time gap looks. Student on right on 2.4Ga Lewisian gneiss, student on left on 1.2Ga Torridonian breccia. Clachtoll, Scotland on @durhamearthsci.bsky.social field trip few weeks ago. #geology #unconformity #petrology #fieldtrip #rocks #rock

Dry run for our GSA field trip! @callanbentley.bsky.social #MeccaHills #unconformity #geology