Eugene Miya wrote:
> Ed Huesers wrote:
>> Schrunds are formed more from sun on the rock than glacial movement.
> No, those are moats.
> A schrund is defined as the crevasse formed where the glacier (movement
> of) pulls away from the non-moving feeder permanent snow fields.
Ok, I can see the difference.
>> The most traveled glacier in the park has a small schrund and part
>>of it tears leaving some setting on rock. This part of the glacier has
>>an actual crevasse or two but I've never seen them deeper than 6 ft. and
>>two feet wide. Generally they are a foot wide and a couple feet deep.
> Yeah that's pretty thin. Are you seeing the underlying ice? You have
> to distinguish glacier moment from creep which the snow will do.
Well, from your description of pulling away from the non moving
snow, I guess this is the schrund of the glacier. I've seen rock down
there some times when it was the 6ft. deep. Looked like the shrund was
just above a small headwall because the rock looked like it started
dropping off right there. It's only one part of the glacier though
because the rest of the glacier has a moat but not every time I've been
there. I guess it's more prevolent in the springs deep snow.
>>>Thermal gradient OK?
>> It was hard below with a foot or so of soft on it. It was bonded to
>>the hard snow and was halfways consolidated itself. I don't think I
>>could have gotten it to slide had I wanted to.
> Hey, explosives are your friend. So is gravity (recently reading about
> Attu, lots of boulder rolling and mixing many with hand grenades).
One way of doing it, I guess. Who would suspect?
>> I would worry more about the foot not holding me and have myself
>>slide down the loose snow. It was only that steep in two or three places
>>that were two or three steps each.
> Yeah, that's a problem, too.
Mostly, stomp hard and let the snow sinter a few seconds before
stepping up.
>> Thought the winter, I do enough shoveling and digging to know the
>>underlying layers too and they are pretty stable in years of late with
>>the snow fall a bit warmer than it used to. The snow in the ground layer
>>is slush/wet and not the depth hoar of years gone by.
> So no more destructive metamorphosis happened?
> I was wondering how you knew the hackpack is OK.
Most of my igloos are built on a flat feature in a steep slope so
the door comes out below the igloo. When I gather the snow for building,
I take it from uphill and I end up with a pretty good quarry. Usually
down to the groud or rock. I also travel the areas often enough that I
feel what it is like after each storm. The snow is a lot more stable
lately than it was when it was colder and the snow moved more. The snow
is also warmer to start with and consolidates pretty fast.
>> If it is consolidated snow that fills the gaps between rocks,
>>climbing can be pretty good.
> How big is the local talus average?
The talus is a foot or two at most but I was traveling on the top of
the mountain where it is not really talus but glacial deposited
boulders. Very old rock and that is more like two or three foot size.
The wind covers the rocks in most places and traveling is very easy.
Other places, the snow was pretty hard from drifting in and
consolidating all winter.
> I'd be cautious about one of those leg breaking holes.
> I'd step on the rocks and not the snow.
Yes, I've learnt how some snow has holes and other snow doesn't. It
don't take long to figure it out on each trip. Down in the canyon the
boulders are the size of VWs and I'm a lot more careful there and stay
on rock when booting it or on thick snow. There's lots of finger drifts
where you can tell how thick the snow is.
>>>>A lot of volcanic in Iceland.
>> Slopes are broad and as steep as flowing sand.
> No veg to anchor.
Pictures looked to be mostly bare small skree with very little
grass/tundra. Slippery slopes.
> Many on the angle of repose and brief steep cliffs where flows broke
off.
Cliffs along ridge lines and the top but the broad sides were wide
and open, one faccet.
> They have to snow machine a lot. It's not like they do a lot in the
> interior in winter. They have a couple of ice sheets.
I did see some ice sheets but was looking more at the mountains.
>> All granite where I go most.
> What?! Youo don't go to El Dorado? So that's why we didn't get to the
> Flat Irons like Clyde and George.
Went to Eldo once early on, didn't climb the crack but just played
around a bit.
Didn't climb because of my car's broken timing belt.
> Granite is very nice when you get the right blend of minerals.
This summer I took the time to figure out a way down the steep side
of a glacial knob, no ropes required in dry conditions. I can now go
over one knob and up and over the next one. Did 10 knobs in a row a
couple weeks ago. 3,100 ft. of gain and about 8 miles round trip. Was fun.
> There was a subtle joke in the current Journey to the Center of the
Earth.
>
> They enter a chamber (which I won't explain further) and there are
> embedded huge diamonds. Then the 2nd character identifies rubies.
> And then 3rd, eldest character, comes in and says Feldspar which only
> has value as fill material.
Shades of the old movie, breaking out a huge crystal and starting a
leak. Was a kid when I watched that.
> When did you guys kill off your last grizzlies?
Just did a search and Ed Wiseman killed one in 1979.
> Expires got rid of Chris' last thread. Have to figure out this Scotland
> thing of his.
I'll look and see if I can revive it for ya.
Ed Huesers
Http://www.grandshelters.com
|
