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Messages 961 - 972 of total 972 in this topic << First  |  < Previous  |  Show All  |  Next >  |  Last >>
WyoRockMan

climber
Grizzlyville, WY
Jul 5, 2017 - 12:31am PT
Credit: WyoRockMan

Heart Mountain from Cedar Mountain, Cody,WY July 4th 2017
mouse from merced

Trad climber
The finger of fate, my friends, is fickle.
Jul 5, 2017 - 03:42am PT
Crow Nation celebrating Independence Day.
Credit: mouse from merced
hooblie

climber
from out where the anecdotes roam
Jul 5, 2017 - 06:30am PT
https://en.wikipedia.org/wiki/Heart_Mountain_(Wyoming);

Most geologists[who?] who have worked in the area agree that Absaroka volcanism played a role in the sliding and many suggest that a major volcanic or steam explosion initiated movement. Another model involves injection of numerous igneous dikes with the resulting heating of water within pores in rocks causing an increase in pressure which initiated sliding. Some geologists have suggested that hot pressurized water (hydrothermal fluids), derived from a volcano which sat north of Cooke City, Montana, effectively lubricated the sliding surface. Another possibility is that once the slide was moving, friction heated the limestone along the sliding surface, creating pseudotachylite,[3] which then further broke down to calcium oxide and carbon dioxide gas (or supercritical fluid).[2] The gas supported the slide in the way that air pressure supports a hovercraft, allowing the slide to move easily down the very low slope. When the rockslide stopped, the carbon dioxide cooled and recombined with calcium oxide to form the cement-like carbonate rock now found in the fault zone. The consensus favors catastrophic sliding and calculations suggest that the front of the sliding mass may have advanced at a speed of over 100 miles/hour (160 km/h), meaning that the mountain traveled to its present location in approximately 30 minutes.[4]
Chaz

Trad climber
greater Boss Angeles area
Jul 5, 2017 - 09:02pm PT
Puget Sound 7/5/17




( Point Wilson Lighthouse - Port Townsend )
hooblie

climber
from out where the anecdotes roam
Jul 7, 2017 - 08:18pm PT
Credit: hooblie
mouse from merced

Trad climber
The finger of fate, my friends, is fickle.
Jul 8, 2017 - 11:47pm PT
Really smoke-choked day here.
Mount Diablo from Middle Earth.
Mount Diablo from Middle Earth.
Credit: mouse from merced

Approach to the Sierra from Middle Earth.  Pine Mountain Lookout is a ...
Approach to the Sierra from Middle Earth. Pine Mountain Lookout is a barely discernible bump beyond the last ridge.
Credit: mouse from merced
hooblie

climber
from out where the anecdotes roam
Jul 11, 2017 - 08:38pm PT
Credit: hooblie
tuolumne_tradster

Trad climber
Leading Edge of North American Plate
Jul 17, 2017 - 03:19pm PT
Saturday 7/15/17 Sunset light on Mt Dana from turnout near Saddlebag Lake.
hooblie

climber
from out where the anecdotes roam
Jul 18, 2017 - 08:43pm PT
Credit: hooblie
Credit: hooblie
Credit: hooblie
spunk

Big Wall climber
dumbf*#kistan
Jul 18, 2017 - 09:02pm PT
Dingus Milktoast

Trad climber
Minister of Moderation, Fatcrackistan
Jul 18, 2017 - 09:43pm PT


DMT
hooblie

climber
from out where the anecdotes roam
Jul 27, 2017 - 08:44pm PT
Credit: hooblie
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