RT @USGSAZ: Moenave Formation outcrops on Garces Mesas, northeastern Arizona. The white caprock on top of the Moenave Formation is silicifi…
3,924 followers
2,156 followers
Moenave Formation outcrops on Garces Mesas, northeastern Arizona. The white caprock on top of the Moenave Formation is silicified sandstone of the Kayenta Formation. Photograph by Jon Mason, USGS, from this 2021 report on Black Mesa, AZ: https://t.co/L6WF3
1,109 followers
RT @AZGeology: Organ Rock #Monocline and folding strata of Skeleton Mesa, near Kayenta, AZ. From Jon Mason's excellent report, '#Groundwate…
287 followers
RT @AZGeology: The #stratigraphy and #aquifers of Black Mesa area from Jon Mason's excellent report, '#Groundwater, Surface-Water, and Wate…