The Cellar Image of the Day

xoxoxoBruce Friday Mar 27 12:03 AM

March 27th, 2020 : Chiricahua National Monument

So they closed Brimham and we can’t visit. To hell with them, we don’t need their rocks.
We have our own rocks that are closed so we can’t visit. How do you like them pebbles.

Quote:

While much of the geologic history of the Precambrian, Paleozoic and Mesozoic eras is absent in Chiricahua National Monument, the rocks that are exposed record a dynamic Cenozoic history of volcanic eruptions. Remnants of the Turkey Creek caldera provide evidence for three successive large volcanic eruptions beginning about 26.9 million years ago that blasted more than 400 km3 (100 mi3) of magma from a buried magma chamber and covered a region of at least 3,100 km2 (1,200 mi2) with pyroclastic debris.

Quote:

Volcanic ash, glowing gas cloud deposits, steam vents, lava flows, and high velocity surge deposits can be found in Chiricahua National Monument. Hot glass shards fused together to form the welded tuff of the Rhyolite Canyon Tuff, a deposit at least 490 m (1,600 ft) thick. Upon cooling, vertical joints formed in the erosion-resistant Rhyolite Canyon Tuff and provided conduits for water. Continual freezing and thawing expanded the joints and dislodged pieces of the rock. Over time, chemical and physical weathering processes acted together to carve the pinnacles, spires, and columns for which the Monument is known.

Quote:

Features associated with volcanic activity, regional tectonic deformation, and weathering processes are displayed in Chiricahua National Monument.
Weathering and erosion processes have created:
Slot Canyons, Slumps, Natural Bridge, Solution Pans, Rock Varnish,
Tafoni, Spherulites, Inverted Topography
And, the Monument’s distinctive geologic features:
Pinnacles, Spires, Balanced Rocks, Columns
Volcanic features, primarily related to the Turkey Creek caldera, include:
The Caldera, Welded Tuff (Rhyolite Canyon Tuff), Fiamme, Fumarole Pipes,
Moat Deposits, Surge Deposits, Igneous Dikes

link

sexobon Friday Mar 27 12:37 AM

Garden of the Gods in Colorado is closed too. I've been there.

Balanced Rock
Attachment 70121

The Three Graces
Attachment 70122

Cathedral Spires
Attachment 70125

Pikes Peak from Garden of the Gods
Attachment 70123

Wikipedia-Garden of the Gods

Griff Friday Mar 27 07:39 AM

gonna have to hit these parks in better times.

BigV Friday Mar 27 11:37 AM

I just hope that hoodoo hooligan MF is banned from these places.

xoxoxoBruce Friday Mar 27 11:35 PM

Oh yes, he pisses me off more than Trump.

Happy Monkey Sunday Mar 29 06:55 PM

Reminds me of Kasha Katuwe/Tent Rocks in New Mexico.

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