Discussion Topic |
|
This thread has been locked |
Messages 1 - 111 of total 111 in this topic |
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Original Post - May 26, 2009 - 01:59pm PT
|
Having done a lot of climbing in Oregon during my early years, I couldn't help but be amazed by how many awesome forms Basalt columns took.
Here's just a sampler.
Post up with your coolest Basalt shots, climbers included or not!!
|
|
Haggis
Trad climber
Scotland
|
|
May 26, 2009 - 02:18pm PT
|
awesome, bottom left looks like "Ardtun" on Mull in scotland with bent collums being caused by a fallen tree in the lava pool.
this is Skye with climbers on Rock Island line
not my image but this is kilt rock just south of the above image. Not technically true basalt (too low SiO2) but cool anyway
|
|
wildone
climber
GHOST TOWN
|
|
May 26, 2009 - 04:15pm PT
|
If you dig basalt, check out my buddy's blog. He's posted here previously, and he's got some great photos. He recently posted a thread on Armenia, but the majority of his blog is central Oregon.
http://basaltblog.blogspot.com/
Here's Will on Armenian basalt.
|
|
wildone
climber
GHOST TOWN
|
|
May 26, 2009 - 04:22pm PT
|
BOO-YAH, bee-yotches!
Put this in your basalt bong and smoke it.
(photo credit, Will Nazarian)
|
|
Mighty Hiker
Social climber
Vancouver, B.C.
|
|
May 26, 2009 - 04:24pm PT
|
There are many fine photos of bassets at http://www.geocities.com/bassetclub/thewalk.html For over 40 years, until 2008, the Basset Hound Club of BC held a basset hound walk in Vancouver's Stanley Park in early May, which was a great success. They don't seem to have held the walk this year, but their site still has many pictures of bassets.
Oh wait, you said Basalt, not Basset. My bad.
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 26, 2009 - 04:29pm PT
|
Nice Haggis!
wildone, your images aren't coming through for me....anyone else?
|
|
wildone
climber
GHOST TOWN
|
|
May 26, 2009 - 04:31pm PT
|
Son of a bitch! they don't work for me now either.
just go to his blog...
|
|
Ghost
climber
A long way from where I started
|
|
May 26, 2009 - 04:35pm PT
|
|
|
Haggis
Trad climber
Scotland
|
|
May 26, 2009 - 04:40pm PT
|
One thing that is interesting in the small group of images here is the difference in the eroded thremochemical banding exhibited. this is the horizontal feature which looks like rythmic waves on the surface of the collum.
I wonder if their wavelenght could be used as a proxy for cooling rate.
|
|
Chinchen
climber
Living on the road
|
|
May 26, 2009 - 04:54pm PT
|
Yea cool! Will is a good guy. I used to work with him at Metolius. Say hi for me. I miss the basalt in oregon!
Jason
|
|
wildone
climber
GHOST TOWN
|
|
May 26, 2009 - 04:57pm PT
|
Haggis, I wonder if you should stick with sheep guts!
Wavelenhgt? Wavelgenth? Wavelehngt? What are you trying to say?
|
|
Haggis
Trad climber
Scotland
|
|
May 26, 2009 - 05:03pm PT
|
sorry its late here,
If you look carefully at the images you will see a low amplitude wave function running along the columns which has been emphasised by erosion and appears as horizontal bands. this is probably low level factional crystallisation in the magma column resulting in "softer minerals" forming in bands.
the question was is the wavelength a proxy for the cooling rate of the column?
|
|
phillygoat
climber
portland,
|
|
May 26, 2009 - 05:47pm PT
|
|
|
ydpl8s
Trad climber
Santa Monica, California
|
|
May 26, 2009 - 06:07pm PT
|
Here's some non-columner junk from the Cascades
3-Finger Jack, Oregon
Summit block of 3-Finger Jack - 3rd classing in Adidas? - summer 1978
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 26, 2009 - 06:45pm PT
|
ydpl8s,
HA! That looks about exactly what my bros and I looked like on Three Fingered Jack in 76-77!!
Wow, same time frame and everything! Not exactly the basalt I was thinking of......
|
|
couchmaster
climber
|
|
May 26, 2009 - 06:52pm PT
|
As a counterpoint to Bruces magnificent pics up there:-) LOL
|
|
Mighty Hiker
Social climber
Vancouver, B.C.
|
|
May 26, 2009 - 07:37pm PT
|
Dogs, wolves, whatever - same difference, eh? We'll man up, maybe bring a few bassets.
|
|
GOclimb
Trad climber
Boston, MA
|
|
May 26, 2009 - 07:40pm PT
|
GO
|
|
steelmnkey
climber
Vision man...ya gotta have vision...
|
|
May 26, 2009 - 08:48pm PT
|
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 26, 2009 - 10:42pm PT
|
Nice shots guys!
Steelmonkey, where is that cool pile?
|
|
Bazo
Boulder climber
Ky
|
|
May 27, 2009 - 06:34am PT
|
Not my photos (if anyone objects, let me know ), but a nice display from my old stomping grounds the Port Hills/Banks Peninsula (New Zealand)...
Rapaki Rock
Castle Rock ( Tobin Sorenson did a few firsts here along with the UK's John Allen { of gritstone fame } )
The Tors
Mt Bradley
And farther inland, Mt Somers
|
|
steelmnkey
climber
Vision man...ya gotta have vision...
|
|
May 27, 2009 - 11:18am PT
|
My shot is the Sine Wall at Paradise Forks.
Posted previously in the AZ appreciation thread.
Some pretty cool routes on there... always liked Tangent and Sine Language. Also the first route ever done at the Forks, I believe, Born Under A Bad Sine.
|
|
Eric McAuliffe
Trad climber
Alpine County, CA
|
|
May 27, 2009 - 01:13pm PT
|
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 27, 2009 - 02:08pm PT
|
Whoa!!.........................
|
|
fgw
Trad climber
portland, or
|
|
May 27, 2009 - 07:53pm PT
|
the long view (hyperlinked from Dave Jensen's website):
the close up:
|
|
paganmonkeyboy
climber
mars...it's near nevada...
|
|
May 27, 2009 - 08:11pm PT
|
oooooh basalt...that's not what i thought it said when i skimmed over it...;)
|
|
Largo
Sport climber
Venice, Ca
|
|
May 27, 2009 - 09:13pm PT
|
Holy sh#t, Eric. Now those are splitters!
JL
|
|
FlyMolo
Trad climber
Lemoore Ca
|
|
May 27, 2009 - 09:27pm PT
|
your rope looks a little worn there just above the accender...
|
|
cintune
climber
the Moon and Antarctica
|
|
May 27, 2009 - 10:52pm PT
|
Iconic.
A page with really nice pics of Fingal's Cave, Staffa at: http://www.catswhiskerstours.com/2007_10_01_archive.html
Have a nice little Pa. bouldering crag nearby (39.87109/-77.45189) made of columnar spotted metarhyolite, which is fairly rare, no good pics though.
|
|
steelmnkey
climber
Vision man...ya gotta have vision...
|
|
May 27, 2009 - 11:38pm PT
|
Maybe not basalt...I don't recall...still cool columns...
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 28, 2009 - 12:42am PT
|
I was wondering if someone would put D.T. up!
|
|
mark miller
Social climber
Reno
|
|
May 28, 2009 - 12:53am PT
|
I think all climbers should be thrilled that the powers that be claimed Devils Post pile as an off limits area. It leaves alot more basaltic (Better )areas for us to climb on; Twin crags, Truckee river canyon and Shakespeare (Glenbrooke rock on US50, very near cave, don't tell anyone.....) which coincidentally looks very similar to the House's of the Holy album cover on the back side.
|
|
Dudeman
Trad climber
California/Idaho/Beyond
|
|
May 28, 2009 - 02:40am PT
|
Basalt: a common extrusive volcanic rock.
Dierkes lake, Twin Falls, Idaho
Bridgeview Crag, Snake River Canyon, Twin Falls, Idaho
Dierkes Lake, Twin Falls, Idaho
Black Cliffs, Boise, Idaho
Dierkes Lake, Twin Falls, Idaho
Connor Columns, Albion, Idaho
Dierkes Lake, Twin Falls, Idaho
Connor Columns, Albion, Idaho
Dierkes Lake, Twin Falls, Idaho
|
|
GOclimb
Trad climber
Boston, MA
|
|
May 28, 2009 - 04:22pm PT
|
Eric McAuliffe - That's gorgeous! By the color on the rock, I'd guess CA. Where exactly?
And Dudeman - I guess I didn't know there was so much cool cool stuff in Idaho!
GO
|
|
Jaybro
Social climber
Wolf City, Wyoming
|
|
May 28, 2009 - 05:21pm PT
|
Deto is phonolytic porphyry, it's basaltic.
|
|
steelmnkey
climber
Vision man...ya gotta have vision...
|
|
May 28, 2009 - 06:38pm PT
|
"Deto is phonolytic porphyry, it's basaltic."
Yeah... close enough. :-)
|
|
Eric McAuliffe
Trad climber
Alpine County, CA
|
|
May 28, 2009 - 06:42pm PT
|
My pic was of the postpile...sppppppplllllliiiiittteerrrrrrrr!!!!!
E
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
May 28, 2009 - 11:31pm PT
|
|
|
Choss Gee
Trad climber
Wyoming/Utah
|
|
May 28, 2009 - 11:46pm PT
|
why does it break and shape so nicely like that?
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
May 28, 2009 - 11:49pm PT
|
Skinner Butte, Oregon..
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 29, 2009 - 12:17am PT
|
Todd,
Is that the columns in Eugene??
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
May 29, 2009 - 01:30am PT
|
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
May 29, 2009 - 01:34am PT
|
|
|
healyje
Trad climber
Portland, Oregon
|
|
May 29, 2009 - 01:37am PT
|
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
May 29, 2009 - 01:41am PT
|
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
May 29, 2009 - 01:42am PT
|
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - May 29, 2009 - 12:04pm PT
|
Nice pics guys!!
Todd, I 'knew' that was Skinner after not being there for 30 yrs!!
|
|
Roughster
Sport climber
Vacaville, CA
|
|
May 29, 2009 - 01:48pm PT
|
NorCal Basalt that pretty much no one knows about...and no it is not in the Motherlode or anywhere near Sonora/Sierras.
|
|
Pennsylenvy
Social climber
A dingy corner in your refrigerator
|
|
Great topic!
Sunday had a great day on basalt
Dave Bloom having his slice ....
A well kept belay...and a photo op
(it helps if your belaying a really good climber like Dave)
|
|
Reilly
Mountain climber
Monrovia, CA
|
|
I was under the impression that this 'pillow lava' on Mt Constance (Olympic NP) was a close relative.
|
|
Tork
climber
Yosemite
|
|
Hey Todd, was that last one Frenchman's ? Don't think I would have graduated at the UofI without those cracks.
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
Tork;....Red M & M's........Vantage, Wa. Climber;..Tom Michael,
|
|
Tork
climber
Yosemite
|
|
Ya Todd, thats what I thought. Right next to Stems and Seeds. What year? There were no bolts on that one when I was last there, would have been a fun lead.
A friend, Karl B, did a lot of firsts out there. He told me they were able to trundle entire columns in that area.
|
|
bachar
Gym climber
Mammoth Lakes, CA
|
|
Mexi-basalt.... delicious
Yo, is there bouldering at Dierkes Lake?
Where's the Boneyard?
|
|
Todd Gordon
Trad climber
Joshua Tree, Cal
|
|
Red M & M's is a gear lead that was rap bolted...the bolts were removed...and now it is back to being a gear lead....
|
|
rick d
climber
tucson, az
|
|
Choss Gee
cracks in basalt form perpendicular to cooling surface, hence the cool columns.
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - Jul 7, 2009 - 03:09pm PT
|
Wow!! That thing is seriously cool to look at.
Fun to play with ALL the tools.
|
|
healyje
Trad climber
Portland, Oregon
|
|
|
|
MisterE
Trad climber
One Step Beyond!
|
|
Getting ready to climb the wide, Lower Gorge, Smith Rock:
and one of my favorite climbs there, Master Looney:
Frenchman Coulee/Vantage, Washington:
The Feathers area:
and Sunshine Wall area:
|
|
SteveW
Trad climber
The state of confusion
|
|
Golden, CO
|
|
Chiloe
Trad climber
Lee, NH
|
|
Also Golden,
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - Jul 8, 2009 - 06:15pm PT
|
Nice stuff you guys!
That Feathers area shot is amazing.
|
|
Captain...or Skully
Social climber
way, WAY out there....(OMG)
|
|
How's an old guy like Chiloe get Betty's to climb with him?
WooHoo!(j/k, there, Chiloe).....Rock on!
|
|
RocaLibre
Trad climber
Mexico City, Mx
|
|
Mexico City, sweet 10b two pitch climb
Aculco, Mexico, 5.8
Mexico City, University crags, 10c finger crack
|
|
Chiloe
Trad climber
Lee, NH
|
|
Skully:
How's an old guy like Chiloe get Betty's to climb with him?
That was no Betty, that was my daughter! :-)
Climbing more basalt below, belayed by my niece:
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - Jul 9, 2009 - 11:06am PT
|
"That was no Betty, that was my daughter! :-) "
Larry, BWA HA HA Haaa!!
|
|
Eric McAuliffe
Trad climber
Alpine County, CA
|
|
Mar 17, 2010 - 09:00pm PT
|
Basalt Bump........
E
|
|
Reilly
Mountain climber
Monrovia, CA
|
|
Mar 18, 2010 - 12:07pm PT
|
Sorry, eKat, but us mumblers have always just called
it Columbia River columnar climbing cliffs...
This is of some minor histerical note in that it was
a roadside rest stop on the way back to Seattle from
a City of the Rocks trip. This was also the day that
St Helens blew for the second time which made the drive
all the more interesting. And thirdly, since you are
a major skinny skeezer this stud is none other than
Bela Bodnar! What, no bells? For shame! Uh, yeah, he
kinda knew how to light up the skinny tracks. Try
NCAA champeen (U of Wy) and thrasher of Bill Koch and Tim Caldwell
on a couple of occassions! He was on the '76 Oly team with
them but fell prey to the Commie food poisoning plot and
only just managed to finish the 30K when he shoulda been
right up there with Koch. Life takes us on a strange path, eh?
He's now a very successful realtor back in his hometown of
Anchorage. Oh, and he did like his Carharts.
|
|
Studly
Trad climber
WA
|
|
Mar 18, 2010 - 01:13pm PT
|
|
|
vlani
Trad climber
mountain view, ca
|
|
Jun 24, 2010 - 12:38am PT
|
|
|
Fritz
Trad climber
Hagerman, ID
|
|
Jun 24, 2010 - 12:58am PT
|
My doppelgangers: Herman, Bruhelda, Franz, & Katz, are mostly pieces of basalt columns from our property.
Much of our “Ranchette” has chunks of basalt laying around.
We are about 300 vertical feet above the Snake River. I think our property was a giant eddy when the Lake Bonneville Flood rearranged the local topography.
Our basalt outcrops are awash in river gravel. They mined gold near here in the 1800’s. Could that be my “fall-back” plan?
|
|
Jaybro
Social climber
Wolf City, Wyoming
|
|
Jun 24, 2010 - 01:07am PT
|
buh SALT
|
|
Lasti
Trad climber
Budapest
|
|
Jun 24, 2010 - 10:09am PT
|
Great pics all.
Hungary is practically void of any crack-climbing whatsoever apart from this place, where the BAHsalt is sweeeeeet. Sadly there is a complete ban of climbing on the thing and a "ranger station" right at its foot.
Lasti
|
|
survival
Big Wall climber
A Token of My Extreme
|
|
Topic Author's Reply - Jun 24, 2010 - 10:25am PT
|
Why off limits?
Thanks for posting Lasti. Stick around.
|
|
Bob D'A
Trad climber
Boulder, CO
|
|
Jun 24, 2010 - 11:32am PT
|
Panama...
|
|
Tony Bird
climber
Northridge, CA
|
|
Jun 24, 2010 - 11:40am PT
|
which california grotto is that? the one down here is rhyolite.
btw, basalt is lava which cools in the open air. granite cools deep. the slower it cools, the bigger the crystals. rhyolite is midway between, usually hardening in the throat of the volcano or a similar situation. two-bit geology here, let a real expert weigh in. and yea, the devil's tower isn't basalt--would like to hear a treatise on that.
kathi, jaybro has it right, accent on second syllable. is that what you meant?
this thread needs a pic of the glacial polish on top of the devil's postpile, looks like a tile floor up there.
|
|
tom woods
Gym climber
Bishop, CA
|
|
Jun 24, 2010 - 12:25pm PT
|
Bob D- those pics are cool. The sides of basalt are interesting to climb for sure.
I haven't done much, but when I was in college I used boulder at the Putah Creek Boulders outside Winters, CA. The columns are tipped on their sides, so you climb the hexagonal ends of the columns and their sides.
Pretty tricky stuff.
|
|
Thorgon
Big Wall climber
Sedro Woolley, WA
|
|
Jun 24, 2010 - 01:59pm PT
|
Bah-salt-bump....
Thor
|
|
chill
climber
between the flat part and the blue wobbly thing
|
|
Jun 24, 2010 - 03:50pm PT
|
A few from my southern Idaho days:
|
|
Tony Bird
climber
Northridge, CA
|
|
Jun 24, 2010 - 04:32pm PT
|
columnar basalt exists pretty close to, if not alongside, batholithic granite up and down owens valley/east sierra. shouldn't the geology police have sorted that out a few millions years ago?
superheated water melts rocks? wow--way past 100 degrees C. tell me more. always thought the sierra batholith was fused subsumed ocean crust.
|
|
Jaybro
Social climber
Wolf City, Wyoming
|
|
Jun 24, 2010 - 04:39pm PT
|
Rhymes with assault.
|
|
RDB
Social climber
way out there
|
|
Jun 25, 2010 - 01:15am PT
|
Since Todd mentioned it here is another part of the story behind red MM's.
Todd sez: "Red M & M's is a gear lead that was rap bolted...the bolts were removed...and now it is back to being a gear lead.... "
Fulton sez:
"This route was originally put up by Max Dufford. (on pre placed pro) I'd done it on TR and on lead and agreed it was firmly a 12. I told him he should've bolted it and he agreed but didn't think it was worth the effort. I told him I'd bolt it he didn't have a problem with that and he didn't. I then went out there, equipped with a power drill and a bag of bolts to do the dirty. I TR'd it to make sure where the best possible place would be to sink as it turned out the nine bolts then preceded to go to work. Unfortunately it was a borrowed drill and it quit after 1 and 1/2 holes. I couldn't leave it like that so I finished it off by hand. That's right, I hand drilled 7 1/2, 3 inch deep holes and it took a little more than 6 hours standing in aiders the whole time. Man that basalt is hard stuff. My friends there thought I was nuts but I told Max I'd do it and I did. Oddly enough the pro I placed to steady myself had a regular bad habit of ripping out reaffirming my belief that this was a case were maybe bolts were needed. Some guys from Wennachee came by as I was finishing up and seeing as I was too tired to lead it they did and had big smiles on their faces afterwards. Unfortunately it later got chopped by someone who never climbed the route but felt if he did he didn't want to be tempted by the bolts. Considering all that's been bolted out there I was a bit perplexed as to why someone gave a crap about this route but as with anything, when you put something out there you make yourself open for criticism. Nowadays I hear of people leading the route by again pre-placing all the pro needed which I'll bet is more than 9 clips. Oddly enough, I was part of the first climbers out there when I put up routes with the crew on the Middle Eastern and Sunshine walls. Ah those where the days, virgin cracks, no crowds and lotsa guns."
All that sounds about right. I introduced Karl B, Max, Koopsen and Fulton to Vantage. Fulton did many new lines at Vantage he was never credited for in the mid '80s. Lots of dumbshit stuff done at Vantage. Chopping Red MM's bolts was one of them imo. Max and Yoder can argue about who actually freed it between '86 and '96. But my money would be on Max.
|
|
Studly
Trad climber
WA
|
|
Jun 25, 2010 - 01:44am PT
|
|
|
Mungeclimber
Trad climber
sorry, just posting out loud.
|
|
Jun 25, 2010 - 02:17am PT
|
|
|
nature
climber
Tucson, AZ
|
|
Jun 25, 2010 - 02:25am PT
|
hmm.... this to me:
from vlani's post looks like Owen's River Gorge.
I've heard it called basalt on a number of occasions due to the columnar jointing.
But it's not basalt - not even close.
As we all know the Bishop Tuff erupted from the Long Valley Caldera collapse around 768K YPB. It's an air fall ash - a tephra. It's almost all Silica. Basalt is relatively low in silica - lots of Fe and Mg which makes it darker.
Of course I could be wrong on where the picture is from and thus the rest of my post is just me being a geologic as#@&%e ;-)
Interesting note about the Bishop Tuff. It's the oldest known rock that is paleomagnetically normal - so the Bruhnes-Matuyama paleo mag reversal happened the day before the eruption. The ash in the Sherwin Creek till helps date that glacial event.
|
|
justthemaid
climber
Jim Henson's Basement
|
|
Jun 25, 2010 - 09:25am PT
|
I thought that pic looked like Owens River too Nature. could be a similar feature elsewhere I suppose. Thanks for the geologic factoids. DMT has a good post a page or so back too as well.
|
|
tom woods
Gym climber
Bishop, CA
|
|
Jun 25, 2010 - 10:09am PT
|
Paleomagnetically normal? Como?
Also - that does look like the gorge. I've never climbed at that area. That should change.
There's more of that columned tuff out there on the table lands. I climbed a place with a few climbs up to 60 feet where you can belay out of your car.
It's good for an evening for sure.
|
|
Tony Bird
climber
Northridge, CA
|
|
Jun 25, 2010 - 11:43am PT
|
thanks for sorting it out, dingus. trying to dig out my rock book here, but it'll probably take all weekend. will try to find a devil's postpile glacier polish pic too--thought it might be that one by munge up there, but as i recall it was even flatter.
was looking at houses around sonora a few weeks ago. anything to get closer to what life should be about.
|
|
nature
climber
Tucson, AZ
|
|
Jun 25, 2010 - 11:47am PT
|
tom - do you understand what I meant by the Bruhnes-Matuyama event (the last time the magnetic polarity of the earth switched)?
Either way....
up until about 780K YBP if you had a compass the "north" needle would point towards the south pole. So you can take a rock that has gone partially or totally into melt mode (then crystalized) and look at the orientation of the iron molecules. They will point towards the magnetic "north" of the planet (which would be south when the polarity is reversed). Assuming the rock hasn't been rotated, moved, etc. since emplacement/deposition, and assuming you can determine a date of said rock (not difficult) you can then talk about the polarity of the earth at the time those rocks solidified.
The Bishop Tuff is very well studied ash deposit. With all the volcanics, tectonics, and glacial events in and around the Eastern Sierra this ash is incredibly helpful in using relative dating techniques.
See Bierman, Gillespie, Burke (and many many more) if the Quaternary Stratigraphy of the Eastern Sierra interests you.
|
|
mike m
Trad climber
black hills
|
|
Jun 25, 2010 - 11:56am PT
|
Custer found a good one right before he died.These are probably basaltic as well.
|
|
nature
climber
Tucson, AZ
|
|
Jun 25, 2010 - 11:58am PT
|
DMT - mono/Inyo is more rhyo-dacite eruption, no? (I'd have to check my notes).
I don't let this one bug me but everyone calls the intrusive rocks in the Sierra granite. The correct general term would be granitic. Only about 10% of the rocks in the Sierra classify out as Granite - the other 90% generally coming in as Granodiorite (and don't make me pull out my ternary diagram to show the distinct difference ;-)
|
|
BooDawg
Social climber
Paradise Island
|
|
Jun 25, 2010 - 12:41pm PT
|
Speaking of oceanic crust and its source in the earth's mantle, here are some pictures of REALLY young basalts...
When lava is flowing, sometimes it crusts over on top, and when the source of lava is blocked "upstream," lava tubes form. These may be exposed by collapse or for other reasons.
Sometimes the Hawaiians used lava tubes for refuges in times of war, stocking them with food. Sometimes they used them for their petroglyphs as well.
|
|
tom woods
Gym climber
Bishop, CA
|
|
Jun 25, 2010 - 12:51pm PT
|
Way cool.
Thanks for the further explanation Nature. It's time to get reading.
|
|
Mungeclimber
Trad climber
sorry, just posting out loud.
|
|
Jun 25, 2010 - 01:21pm PT
|
not to self, don't ride in Jeep with Dingus, due to stolen Pele rocks.
;)
|
|
ydpl8s
Trad climber
Santa Monica, California
|
|
Jun 25, 2010 - 01:28pm PT
|
I spent a summer in Volcanoes Park doing geophysical surveying for geothermal, tromping miles and miles over that stuff with a backpack and our equipment. I can tell you for sure that it is ILLEGAL to remove that stuff from the park. That being said, I brought home some of Pele's hair and tears that I have sitting right here on my desk.
|
|
Lasti
Trad climber
Budapest
|
|
Jun 25, 2010 - 03:19pm PT
|
Survival,
A bit OT but what the heck.
I reckon the restriction on our little basalt crack-haven has something to do with loose rock or the national park thinking climbers aren't the haute couture in cliff accessories (tourons might think we are ugly?).
Sadly we have serious access issues here in Hungary, way disproportionate over-restrictive policies towards climbers. Not far from this basalt cliff there is a nice set (just a few) of Fontainebleauesque sandstone boulders that could be the highpoint of any boulderer's Eastern European trip. Off-limits of course, because climbers devastate the landscape. Never mind the throngs of tourists passing through, 'petroglyphing' and littering there daily. Of course right now prominent Hungarian climbers are more interested in pointing fingers and fixing the blame of how we got to this juncture than in trying to mediate between the climbing community and authorities. It is a truly sordid state of affairs, especially taking into account the relative paucity of climbable rock in the county in the first place.
Lasti
|
|
vlani
Trad climber
mountain view, ca
|
|
Jun 25, 2010 - 11:23pm PT
|
Yes my pic is from the Owens, upper gorge I think is is called in the guide. There is a climb at that formation, don't rememmber the name. There are more formations like that, but I think this one is the largest fan in there.
Don't know much about the geology :)
|
|
Jaybro
Social climber
Wolf City, Wyoming
|
|
Jun 25, 2010 - 11:51pm PT
|
I have made the White jeep pilgramege, and almost no one was killed...
I believe Missouri Buttes are a Phonolyte porphyry, like the tower, but mebbe not.
|
|
nature
climber
Tucson, AZ
|
|
Jun 26, 2010 - 12:08am PT
|
vlani - cool! I love the gorge. And to me it's easy to see why it might be thought of as bahsalt (where's my sheep?). It makes me happy that I can recognize the climbing area with such a non-descript photo.
the one thing I note in ORG is that the columns are sorta rose-flower shaped. they are not the typical columnar columns. Also, what is even more interesting is the columns forum on the surface of the formation rather than interior. I hypothesize it's due to degassing within the tepha deposit. who know? It's fun to arm wave over though!
|
|
Tony Bird
climber
Northridge, CA
|
|
Jun 26, 2010 - 02:13pm PT
|
ah, dingus, nature, i knew there was a debate in here somewhere. c'mon, don't be lazy, pull out the reference.
what a woman ... what a hotspot.
italians, always tuned in towards the tourist buck, do a variation of this on mt. stromboli. they grab wads of the molten stuff and shape it into little statuettes with tongs and pliers. they sell quite well.
|
|
Tony Bird
climber
Northridge, CA
|
|
Jun 26, 2010 - 02:16pm PT
|
ah, dingus, nature, i knew there was a debate in here somewhere. c'mon, don't be lazy, pull out the reference.
what a woman up there--what a hotspot!
italians, always tuned in on the tourist buck, do a variation of this on mt. stromboli. they grab wads of the molten stuff and shape it into little statuettes with tongs and pliers. they sell quite well.
|
|
nature
climber
Tucson, AZ
|
|
Jun 26, 2010 - 03:09pm PT
|
debate?
reference?
what do you need references for? I'm happy to provide any/all.
and what's the debate? I love this stuff but right now I don't see anyone offering a difference of opinion on anything.
(I should have a M.S. in Geology from Humboldt State - did everything but finish writing my thesis - which was done in Owens Valley)
|
|
BooDawg
Social climber
Paradise Island
|
|
Jun 27, 2010 - 06:27am PT
|
Yes, DMT; I DO know that many native Hawaiians and others as well believe it's bad luck and, more importantly disrespectful, to take lava from Pele's realm.
Somewhat older than the basalts on Hawaii Island are those that erupted near Toroweap Valley in western Grand Canyon and flowed down into the Canyon many times, damming the river and creating a series of lakes that were each eroded away between eruptions. Today the most exciting rapid on the Grand Canyon is Lava Falls where the river is still removing the remnants of the last eruption. These eruptions are all less than a million years old.
The Cardenas Lavas and the basaltic sill at Hance Rapid both have radiometric ages of about 1.09 billion years.
|
|
Acer
Big Wall climber
AZ
|
|
Jul 14, 2010 - 02:35am PT
|
|
|
Messages 1 - 111 of total 111 in this topic |
|
SuperTopo on the Web
|