Found another of my sample flakes of the lavender-gray & red Alibates flint from the Texas Panhandle. This one has an old patinated cleavage surface (human or natural breakage) & what looks like original cortex. #Archaeology#rocks
This is the river Rhine in cologne. It's the biggest and longest river in Germany.
The drought shows us structures and things that are usually under the water.
This discovery shows that these #sediments were formed in a river, a delta or near the shore of an ancient lake. It raises questions about #oxydation processes on Mars... and reinforces the hypothesis of past #habitability...
It's a rugged place, this high valley in the wilderness of Oregon. May the artwork take you to such a place -- one of wild beauty, intense silence, and timeless majesty.
While I was doing some work on black novaculite & Big Fork chert samples using the big microscope, I decided to examine it closer. 2/ #Archaeology#rocks