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mucci
Trad climber
The pitch of Bagalaar above you
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Dec 18, 2009 - 12:15am PT
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^^^^^ Is that site from this?
Credit: Victor
Going to the dvr to check out the series, looks good.
Bump
Mucci
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Phil_B
Social climber
Hercules, CA
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Dec 18, 2009 - 12:28am PT
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Chaz
Trad climber
greater Boss Angeles area
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Dec 18, 2009 - 12:28am PT
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It's cool to see folks from here on something other than "COPS" and then "Lock-up, Hard Time In The Joint".
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aguacaliente
climber
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Dec 18, 2009 - 12:37am PT
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I've seen a little bit of a science documentary being made and watched the results (I didn't have a speaking part but my boss did). When you watch it, your voice will sound weird and you'll probably wince at some contrived narrative point and there will be technical inaccuracies that stand out to you very clearly. But (unless the film makers are complete wackos) those issues won't really matter - only the ones who already know the material notice them. These films can't teach all of Science 101 to people sitting in front of a TV, what we can hope they do is pique people's interest and get them to read a book, or notice something the next time they go outside, or both. That's cool.
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Mighty Hiker
climber
Vancouver, B.C.
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Dec 18, 2009 - 01:17am PT
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I hope you didn't find it necessary to mention the fine art of boulder trundling in public.
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Captain...or Skully
Social climber
Top of the 5.2-5.12 Boulder
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Dec 18, 2009 - 01:21am PT
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Now THAT'S a fine outing! or hobby......or something.
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Mighty Hiker
climber
Vancouver, B.C.
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Dec 18, 2009 - 01:24am PT
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IF you're very very careful. Sometime I must scan and post the article "The Fine Art of Boulder Trundling". It was in Mountain in the 1970s, but was a reprint from a much earlier English climbers' journal.
The first explorers of Antarctic boulder trundled, too. For science, they claimed.
The picture of Cleo in her helmet beneath the Ahwiyah Point rockfall was kind of amusing.
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scuffy b
climber
Whuttiz that Monstrosicos Inferno?
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Dec 18, 2009 - 07:38pm PT
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Minerals: your question about the erratics of a very specific rock type,
mostly in one location, with a source far away?
Could it be that the supply of the erratics came (mostly) from one
particular rockfall at the source area?
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cleo
Social climber
Berkeley, CA
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Dec 18, 2009 - 09:38pm PT
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I heard Greg Stock speak today at AGU about LiDAR and photography from Glacier Point.
Excellent talk, as usual. Yes, he's very good.
-Val
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cleo
Social climber
Berkeley, CA
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Dec 18, 2009 - 09:41pm PT
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P.S.
Minerals, oh yes, there is a story behind entering the "hazard" area (we weren't supposed to). But our NPS escort (not Greg!) was far more concerned about us going "off-trail" at Glacier Point.
Even Yosemite staff fail to understand real vs. perceived risk in terms of rock fall and (cliff) exposure.
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tuolumne_tradster
Trad climber
Leading Edge of North American Plate
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Dec 18, 2009 - 11:10pm PT
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Cleo - did Greg Stock talk about temporal correlations between rock fall events in Yosemite and earthquakes at AGU? When I saw his talk at Cal about a year ago he was correlating a major El Cap rock fall event that he dated using cosmogenic isotopes (Be-10 I think?) with an earthquake in the Owens Valley.
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tuolumne_tradster
Trad climber
Leading Edge of North American Plate
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Dec 19, 2009 - 03:07am PT
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I don't think we've met. Thanks for the article. I go to geology talks at Cal whenever the topic interests me. As a geologist and climber Greg's talk certainly caught my attention. I like going to AGU as well but didn't make it this year. Are you a grad student at Cal?
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hossjulia
Trad climber
Eastside
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Dec 20, 2009 - 08:13pm PT
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Jimmy loves that series, and the little I have watched I like too.
Thanks for the heads up Bryan, I forgot. Good chance I would have seen it anyway, but now I'll look for it!
(I happened to have stumbled upon them while they were filming.)
edited to add;
I'll try to remember to record it, if I can, not sure if we have the technology.
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Brock
Trad climber
RENO, NV
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Dec 21, 2009 - 02:06pm PT
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Bump.
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Jaybro
Social climber
Wolf City, Wyoming
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Dec 21, 2009 - 02:10pm PT
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Cleo, I wish I'd known about that talk...
Scuffy the term might be Allochthonous (ant a word one gets to use in a sentence, much)
Back on topic, i'll be watching tomorrow night.
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Minerals
Social climber
The Deli
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Topic Author's Reply - Dec 21, 2009 - 02:44pm PT
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“Could it be that the supply of the erratics came (mostly) from one
particular rockfall at the source area?”
Yes, Scuffy b… Maybe next summer we can find the source area and Greg can do some (analytical) modeling…
One of several erratics in the upper Murphy Creek area (Tuolumne), composed of Half Dome granodiorite, with strong modal layering/schlieren developed
What’s going on here…???
Anyone ever see stuff like this in Tuolumne?
We saw some ads for the episode yesterday, complete with climbers on El Cap! I hope I don’t look like too much of a DORK tomorrow… :)
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Peter Haan
Trad climber
San Francisco, CA
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Dec 21, 2009 - 03:34pm PT
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If you are on satellite, the programming actually may start at 10 pm tuesday (DISH) and not 9pm. Better ck.
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tuolumne_tradster
Trad climber
Leading Edge of North American Plate
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Dec 21, 2009 - 08:13pm PT
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Minerals: First off thanks for posting these photos. I saw a similar erratic in the drainage east of Mt Conness near Alpine Lake if I remember correctly. I didn't have a camera with me at the time but I was impressed by the "sedimentary depositional" features exhibited by the dark vs light mineral layering in the granite, including what looked like large scale cross-bedding.
The 2nd photo looks like a typical glacial pothole formed by whirlpools of glacial meltw#ter in crevasses
My WAG on the 3rd photo is some kind of reaction between metamorphic roof pendant material and the magma??
By Greg's "analytical modeling" do you mean rock fall simulation? My understanding is that those simulations do not include any glacial transport.
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charley
Trad climber
nw pa.
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Dec 22, 2009 - 10:25am PT
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Our cable system has early programs in the series starting at 7pm with this one at 9pm. Thanks for the heads up.
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