Discussion Topic |
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| Messages 1 - 17 of total 17 in this topic |
Jim Hornibrook
Trad climber
Redwood City, CA
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Topic Author's Original Post - May 26, 2018 - 05:24pm PT
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There are several large holes drilled into the base of El Cap in between The Nose and The Alcove. I remember them always being there as long as I've been climbing in the valley (around 1980).
I'm guessing they have to do with some type of geologic testing, but does anyone know why they were drilled and how long ago??
They've always been a puzzle to me.
Thanks for any info
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Tricouni
Mountain climber
Vancouver
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May 26, 2018 - 06:13pm PT
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Probably core samples for paleomagnetic studies.
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pb
Sport climber
Sonora Ca
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May 26, 2018 - 06:47pm PT
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chop em!
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thebravecowboy
climber
The Good Places
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May 26, 2018 - 06:50pm PT
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just came across these on a stacked series of tiers at a couple fossil reefs out in the Caribe, much longer, deeper cores but of similar diameter, out of limestone hardgrounds. Definitely some type of time estimation sampling stuff by geo-chemistry folks. I was a bit pissed about how blatant the holes were, not 50 m off the road and beginning at ground level. Fairly girthy samples, I'd guess P-mag makes sense for that....but I've helped to collect P-mag samples in NPs and the samples were not drill cores... My limestone stuff might've been detrital zircon sampling, or cosmogenic burial age date samples...
Ah, to be an 'official' official, now that is a thing.
I say fill 'em with chunky JIF for #46.
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Jon Beck
Trad climber
Oceanside
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May 26, 2018 - 06:53pm PT
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Testing the rock for the feasibility of damming up the valley so Fresno could build more golf courses. Just kidding, who in their right mind would build a dam in such a beautiful place.
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madbolter1
Big Wall climber
Denver, CO
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May 26, 2018 - 07:58pm PT
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Hook enhancements on Wings of Steel.
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Jim Hornibrook
Trad climber
Redwood City, CA
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Topic Author's Reply - May 26, 2018 - 08:09pm PT
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Thanks for all of the possible answers...some very helpful...others just hilarious.
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tradmanclimbs
Ice climber
Pomfert VT
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May 26, 2018 - 08:12pm PT
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holes like that anywhere near the road are likely left over from the construction of the road. what is left of a blasting hole , you see those in quarrys a lot.
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thebravecowboy
climber
The Good Places
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May 26, 2018 - 08:59pm PT
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similar for sure, tradman, to the wide gauge roadbuilding bits of yore
a lot like the two finger pocket drillholes on Otto's route, Independence Monument
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stevep
Boulder climber
Salt Lake, UT
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May 26, 2018 - 09:15pm PT
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There are similar shot holes in the granite in LCC for the quarrying used to make the LDS temple in SLC. Does the LDS temple in Modesto have familiar looking granite on it?
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skywalker1
Trad climber
co
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May 26, 2018 - 09:34pm PT
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Hmm I'm with DMT. Its been documented.
[Click to View YouTube Video]
You don't want to ask more questions, you don't want to know.
S....
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BLUEBLOCR
Social climber
joshua tree
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May 26, 2018 - 10:08pm PT
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i don't why there there, but I saw piton Pete treating them like a slut👯
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canyoncat
Social climber
SoCal
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May 27, 2018 - 12:33am PT
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So basically you're saying they're really, really small holes and we shouldn't be concerned. Right?
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i-b-goB
Social climber
Wise Acres
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May 27, 2018 - 07:30am PT
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Captain Kirk climbs a mountain!
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| Messages 1 - 17 of total 17 in this topic |
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