Welcome to SP!  -

Strange rock

 
[ Sizes: Orig | Large | Med | Small | Thumb ]
Strange rock
I saw this chunk of rock on the slope and hadn't seen this variety before. I have no clue as to what kind of rock this is but I'm sure someone out there who sees this pic might know and help identify it. Thanks in advance.
4-30-09

Comments


[ Post a Comment ]
Viewing: 1-8 of 8    

MarcsoltanDean

Marcsoltan

Voted 10/10

I don't know the first thing about geology, but I've seen a lot of volcanic rocks that looked just like this. Are there any volcanos nearby? Sometimes the chunks get blown for many miles.
Posted May 2, 2009 9:55 am

DeanRe: Dean

Dean

Hasn't voted

It looks like a big chunk of brown pumice but yet I had never seen anything like it. Mike also hadn't seen anything similar and I really don't know if there is volcanic remnants in the Silver Island range. I will be returning to the area to visit more peaks there and will try and ask my geologist son in law. Thanks Marc.
Posted May 2, 2009 10:11 am

KlenkeRe: Dean

Klenke

Hasn't voted

It could be a remnant chunk of a reef. Wasn't there an inland sea in Utah at one point? It looks like reef rock but also pumice at the same time.
Posted May 2, 2009 1:46 pm

DeanRe: Dean

Dean

Hasn't voted

Hmmm, reef. Yes, the whole area was seabottom at one time. It was strange to find this all by itself, almost like an erratic from the Missoula Ice floods that hit
eastern washington.
Posted May 2, 2009 2:04 pm

listoramaRock

Hasn't voted

This very well could be detritus ejected from the bathroom of an Alien spacecraft that was flying here on a reconnaissance mission. Touching it would not be a good idea. I have already said too much.
Posted May 2, 2009 6:46 pm

jackstraw0083Rock

jackstraw0083

Hasn't voted

Hard to tell from a pic, but it may be a weathered tuff (lithified volcanic ash). I know there's a lot of tuff out in that area.
Posted Jun 2, 2009 4:07 pm

Alex WoodPyroclastic debre

Alex Wood

Voted 10/10

I am calling it volcanic because of its vesicular texture. Pumice can be carried (convected) pretty far in a plinian eruption and it can even float. So it has a long range. Probably some time rhyolitic pumice. Did you happen to pick it up?
Posted Jan 27, 2010 10:48 pm

DeanRe: Pyroclastic debre

Dean

Hasn't voted

We did pick it up and it wasn't light like pumice would be. An interesting rock but most likely volcanic.
Posted Jan 30, 2010 9:31 am

Viewing: 1-8 of 8    




Rate This Image
Current Score: 80.49

Log In To Vote
[ View 12 Votes | Post Comment ]  
Image Data
DeanSubmitted by Dean
on May 1, 2009 9:36 pm

Image ID: 510531
Hits: 1099 
Object Title: Strange rock