Sandstone from Zion National

[Mike MoMo]

Truly I have enjoyed this informative thread. Never would I thought that a few pictures of a prized piece of Earth ( my emotional attachment only ) could provoke such. Regardless to the future or past of this sandstone it has now touched the lives of many.

 

[Brian Van Fleet]

I NEVER suggested you (or anyone) could chip sandstone. Ever. This looks more like hard-rock (chert, flint, etc.) that you often find embedded in a sandstone strata and which was used by aboriginals for tool making. I have a tad of experience, too. Took 4 years of geology at Arizona State College (now University) back in olden times.

Aboriginals in Utah?

 

[0soyoung]

Aboriginals in Utah?

Anasazi.

 

[jkl2]

I y'all say so. so be it.

 

[sorce]

Aboriginals in Utah?

Mormons!

@Alain
Your credentials are useless after also being funny. Funny negates any sensibility around here!

So a dude picked up a rock from a place he maybe shouldn't have, that maybe 2-4 people on earth would ever have much concern for, interest in, or look twice at.

Now we get to look at it, study it, possibly identify it as a tool, or nothing at all.

Laws laws....but what would anyone ever learn from it sitting there in Utah?

Is there some kind of imaginary force that condemns those who touch and explore with a regularly useless Fucking rock?

Cut and dry, when you move, you probly won't want to pack that weight. Though I just met a dude moving out of the building I worked at who had a giant ass bin full of weight.

Interesting weight.

Now, when geologists in 3017 find that rock.....out of place in your backyard, do you think they will telepathically say, WTF, or will we be talking on whole words again by then?

Also interesting, the fact that they will wonder what the formations of precisely cut granite they find scattered across landscapes is. Will they know a sink got put in the cut out hole?

Will water exist then for them to question a water basin?

Sorce

 

[Ironbeaver]

Two thoughts,

1. Are the lighter colours that look like ridges just lighter stripes, creating the illusion of ridges?
2. Couldn't sandstone be "stabilized" by soaking or vacuum chamber impregnating (haha) it with acrylic or some other material to keep it from breaking down?

 

[sorce]

Looking at that rock again...more so, the fracture lines, kind of makes me think if someone was banging on this, it would have broke there.

I found an arrowhead the other day, in a mulch pile.


See the bottom cracked off at the tie indent.
Aboriginals in the Walgreens parking lot?

Sorce

 

[Alain]

Mormons!

Of course!

Now, when geologists in 3017 find that rock.....out of place in your backyard, do you think they will telepathically say, WTF, or will we be talking on whole words again by then?

That's called 'an erratic block'
For instance in Scotland you find huge blocks of rock coming from Scandinavia.
The totally mislead 3017 geologist will thus conclude that this rock was brought here by a glacier

Also interesting, the fact that they will wonder what the formations of precisely cut granite they find scattered across landscapes is. Will they know a sink got put in the cut out hole?

If there aren't total moron they'll understand that this kind of regular cut pattern is the result of a living form action.

Will water exist then for them to question a water basin?

I hope so.
Canadian whiskey isn't necessary to geologist life, we just like it, water is

Sorce[/QUOTE]

Two thoughts,

1. Are the lighter colours that look like ridges just lighter stripes, creating the illusion of ridges?
2. Couldn't sandstone be "stabilized" by soaking or vacuum chamber impregnating (haha) it with acrylic or some other material to keep it from breaking down?

1) There are really ridges due to harder levels that didn't erode like the remaining rocks. The lighter color on the top of the rock however is just due to a little rubbing of this obviously soft rock (may be just happened in the backpack of the guy who picked it up
2) Of course. you could always coat it with epoxy for example.

Looking at that rock again...more so, the fracture lines, kind of makes me think if someone was banging on this, it would have broke there.

I found an arrowhead the other day, in a mulch pile.
View attachment 91223

See the bottom cracked off at the tie indent.
Aboriginals in the Walgreens parking lot?

Sorce

Now that's obviously a tool obtained by human (or chimps?) handcrafting!
The grain of the rock is really fine to non-existent which explain the way it chipped, it's call 'conchoidal fracture'
https://en.wikipedia.org/wiki/Conchoidal_fracture


Btw: the chimps part is a joke They aren't quite there yet.