Overthrusts?

[Deamiter]

I've been around a while, and even though I'm a fourth-year physics student who only plays in geology for fun, I do know quite a bit about geology... However, in a recent thread, spiced brought up overthrusts with a quote from a site that's very emotionally charged, yet still makes a point about this phenomenon which I'd never heard about before. It does seem odd that some layers would flip in thin, long strips as is claimed!

Any comments?

From:
http://informationcentre.tripod.com...ist_corner.html

Glarus Overthrust: At Glarus Overthrust of Switzerland, the arrangement of strata should proceed: Permian, Jurassic, Eocene. However, it occurs exactly the opposite.

It is layered: Eocene, Jurassic, Permian. This suggests that, in this 21 mile formation, the top 3 layers completely flipped over. Evolutionists maintain that this is overthrust, however, one must wonder just what kind of activity could cause 21 miles of deep sediment to flip over, on to it's back, and end up so beautifully layered and appearing so undisturbed.
Heart Mountain and Sheep Mountain: At Heart Mountain and Sheep Mountain of Wyoming we see the impossible occur. These mountains are capped with Paleozoic limestone and are followed by Jurassic and Tertiary sediments. Not only is this once again completely backwards, but lieing directly beneath the Teritary sediments is more Paleozoic limestone!
Oops!: The year is 1970, in Guryul Ravine, Kashmir. Permian brachiopods are found mixed with lower triassic pelecypods. Though the two were supposed to be separated by millions of years, they were found in the same sediments. Evolutionists never attempted to explain this phenomenon. They simply ignored it. Funny how they ignore what they can't prove!

 

[AirPo]

I've been around a while, and even though I'm a fourth-year physics student who only plays in geology for fun, I do know quite a bit about geology... However, in a recent thread, spiced brought up overthrusts with a quote from a site that's very emotionally charged, yet still makes a point about this phenomenon which I'd never heard about before. It does seem odd that some layers would flip in thin, long strips as is claimed!

Any comments?

From:
http://informationcentre.tripod.com...ist_corner.html

I've not a lot of time to look up references at the momment, but IIRC, there are plenty of examples of layers in different degrees of flipping, not just upsidedown. Also, I would imagine that the theory of plate tectonics would predict that layers would be distorted in different ways, including completely flipped ver.

 

[USincognito]

One of the most famous overthusts are the Lewis Overthrusts. I did a Google search for those words and got these hits.

My personal take is that if Plate Tectonics can produce the the mountain ranges it so obviously has produced, then why can't something like an overthrust occur. Strata smack together, mountains and overthrusts occur because of that.

I have a Geology student I know via the Net I can invite to join us if you want a serious student of the subject to offer her comments.

 

[Deamiter]

I would be very interested in the input from a geology student if you know somebody who wouldn't be too bothered. My school has a very good physics program, but offers next to nothing in geology (not uncommon in a small private university). My education on rocks will have to wait until grad school unfortunately.

 

[Jet Black]

Joe Meert would probably explain it if someone contacted him, or perhaps Glenn Morton. I know both of them are active on the internet.

 

[USincognito]

I would be very interested in the input from a geology student if you know somebody who wouldn't be too bothered. My school has a very good physics program, but offers next to nothing in geology (not uncommon in a small private university). My education on rocks will have to wait until grad school unfortunately.

She's the daughter of a friend of mine. I'll PM her and get back to you on this within 24 hours.

 

[John Solum]

Deamiter said:
" It does seem odd that some layers would flip in thin, long strips as is claimed!"

The site you link to doesn't do a very good job of describing thrust faults. Thrust faults don't form where long, thin layers of rocks flip 180 degrees, they form where older rocks are forced over younger. The rocks aren't flipped upside down, they're still upright. When tectonic plate collide, the rocks near the collision break and crumple. The breaks are thrust faults.

Thrust faults aren't imaginary either, there are hundreds of active thrust faults today. They're the blue symbols on the figure this figure: http://www.talkorigins.org/faqs/lewis/earthquakes.jpg


I hope this helps,

John

 

[Deamiter]

Now THAT makes sense. I was very intrigued by "the top 3 layers completely flipped over" but a simple thrust line is certainly something I understand very well.

*sigh* I was excited for a while thinking that there would be some very interesting explanation for how 21 miles of sedement "flipped over on it's back" I guess I would have assumed that it would be worth mentioning that the rock 'flipped' along a fault line, and that there's an obvious deformity that shows where it flipped from and which way it was pushed (and even how long it took in some cases if my memory serves me). You don't really need to bother your geologist friends, though if they don't mind, I would never complain about hearing a more technical explanation from someone who studies it.

 

[HRE]

I guess I would have assumed that it would be worth mentioning that the rock 'flipped' along a fault line, and that there's an obvious deformity that shows where it flipped from and which way it was pushed (and even how long it took in some cases if my memory serves me).

Yeah, shame that slipped their minds when they wrote that. Innocent error, right?