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Blakey
Trad climber
Sierra Vista
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Dec 23, 2013 - 03:00pm PT
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This is the penultimate belay on Dem Bones in the Stronghold.
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Banquo
climber
Amerricka
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Dec 23, 2013 - 03:13pm PT
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Name this one:
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RyanD
climber
Squamish
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Topic Author's Reply - Dec 23, 2013 - 03:25pm PT
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Wow, some cool stuff!
The stronghold eh?? I think a few dudes who post here hang out there on the reg, maybe they'll show off their Dykes.
Ghost, wish I had a shot of chasing rainbows. Never done it, looks real pretty.
The dragon? Is that black canyon?
Awesome....
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the czar
climber
meyers, ca.
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Dec 23, 2013 - 03:28pm PT
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RP3
Big Wall climber
Sonora
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Dec 23, 2013 - 03:52pm PT
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Fantastic thread!
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Reilly
Mountain climber
The Other Monrovia- CA
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Dec 23, 2013 - 04:51pm PT
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I suppose this isn't a dike in the strictest sense but it is pretty cool, if short.
It did take hours to hoe out the moss and munge and I've gotten little thanks for it.
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this just in
climber
north fork
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Dec 23, 2013 - 05:00pm PT
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Thanks for doing that Reilly.
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mooser
Trad climber
seattle
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Dec 23, 2013 - 05:06pm PT
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Reilly - That IS a dyke in the strictest sense. Nice work!
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Darwin
Trad climber
Seattle, WA
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Dec 23, 2013 - 05:52pm PT
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It's from wikipedia. Do geologists care to comment?
A dike or dyke in geology is a sheet of rock that formed in a crack in a pre-existing rock body. However, when the crack is between the layers in a layered rock, it is called a sill, not a dike. It is a type of tabular or sheet intrusion, that either cuts across layers in a planar wall rock structures, or into a layer or unlayered mass of rock.[1]
Dikes can therefore be either intrusive or sedimentary in origin. For example, when molten rock intrudes into a crack then crystallizes, it is an igneous dike. When sediment fills a pre-existing crack, it is a sedimentary dike.
http://en.wikipedia.org/wiki/Sill_(geology);
and
http://en.wikipedia.org/wiki/Dike_(geology);
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TwistedCrank
climber
Bungwater Hollow, Ida-ho
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Dec 23, 2013 - 05:56pm PT
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Dikes are sheetlike intrusions of magma that cut at high angle across bedding or foliation in the country rock. It is commonly assumed that sheetlike intrusions form because country rock fractures most easily along a plane that is perpendicular to the axis of least compressive stress. However, sheetlike intrusions can occur only if the magma is sufficiently inviscid to flow into a sheetlike form. Sheetlike intrusions are favored for all but the most viscous granitic magmas. Basaltic and low-viscosity granitic magmas form dikes and high-viscosity granitic magmas form stocks and batholiths. Alternative explanations for stocks and batholiths are that they are emplaced either by ductile deformation or by stoping. Even magmatic bodies migrating by ductile deformation will be sheetlike if they are sufficiently small. In case you were interested.
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Big Mike
Trad climber
BC
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Dec 23, 2013 - 06:37pm PT
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Did someone mention chasing rainbows??
Very cool climb!!
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Norwegian
Trad climber
dancin on the tip of god's middle finger
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Dec 23, 2013 - 10:22pm PT
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Norwegian
Trad climber
dancin on the tip of god's middle finger
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Dec 23, 2013 - 10:34pm PT
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on dykedelics,
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Fritz
Trad climber
Choss Creek, ID
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Dec 23, 2013 - 10:36pm PT
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Big Mike! Re your photos & prose: Did someone mention chasing rainbows??
I'm not going to go looking for old photos, but back in the 70's, we named a similar dyke in Idaho: The Big Black Dyke!
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Chief
climber
The NW edge of The Hudson Bay
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Dec 23, 2013 - 10:38pm PT
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OK, how PC is a Black Dyke on a Chief?
While we're in that vein, how about Daryl's adjacent opus, The Negro Lesbian?
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Gilroy
Social climber
Bolderado
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Dec 23, 2013 - 10:52pm PT
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Someone's gotta go to bat for the dykes. Had a climbing partner who kept score of the lovers who became gay after his involvement or vice versa. Figured he went out even, to his knowledge.
First dike I tried to turn.
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drljefe
climber
El Presidio San Augustin del Tucson
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Dec 23, 2013 - 11:44pm PT
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Mystery of the Desert
Sheep Thrills
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SuperTopo on the Web
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Let us know!