Why Do Pennsylvanian Rock Formations Appear as Strips?

[ngruman]

This is what I call "swimming yams". Any guesses?

Your "swimming yams" look like rip-up clasts from some sort of flow - based on how they are aligned. Do you happen to know what the matrix is surrounding the yams? And what are the yams made out of?

 

[ngruman]

Notice the empty indentations? That's where yams fell out.

Normally, the fossils are the usual hard white substance. But I have found a large number of rocks recently where the fossils are of a soft, crumbly orange substance. These are all from this area, both the white and the orange. I'm wondering what the orange yam like fossils could be.

Here's an orange fossil of possibly a crinoid?

You have a trace fossil here called a worm burrow where a critter crawled through the carbonate mud and the void space that was left was then subsequently filled by sand that has been loosely cemented. Unfortunately, it isn't possible to tell exactly which sort of critter made the burrow; however, more questions could be answered if it was possible to tell which direction was stratigraphically "up".

 

[Evo]

You have a trace fossil here called a worm burrow where a critter crawled through the carbonate mud and the void space that was left was then subsequently filled by sand that has been loosely cemented. Unfortunately, it isn't possible to tell exactly which sort of critter made the burrow; however, more questions could be answered if it was possible to tell which direction was stratigraphically "up".

This one is definitely a crinoid. I've found others that confirmed it.

 

[Evo]

Your "swimming yams" look like rip-up clasts from some sort of flow - based on how they are aligned. Do you happen to know what the matrix is surrounding the yams? And what are the yams made out of?

I'll verify the rock they're in tomorrow. The yams look like clay.

 

[dlgoff]

Any progress? The bluish greenish hue may indicate copper. Have you considered bornite or maybe chalcite

I need a spectrometer Andre. I did a "flame test" with a propane torch directed on a small area of the edge; no change in flame color.

 

[Andre]

I need a spectrometer

I just happen to know that Lisab has one; working with it daily.

 

[dlgoff]

I just happen to know that Lisab has one; working with it daily.

Really? I would send the rock to her if she were interested. What a deal.

 

[dlgoff]

When I was a kid I, boxed and stored some of my rocks at my parents house. I discovered them a couple of days ago while going through an old shed; hence the bump.

The boxes where still taped as I had left them and since I hadn't seen then for a long time, it was like opening Christmas presents. Here a couple pic I just took.

http://imageshack.us/a/img41/5697/q84a.jpg

http://imageshack.us/a/img69/6713/atgl.jpg

 

[Evo]

Oooh, very nice rocks and fossils! They are digging near here ( 2 blocks away) and have a mountian of fossil rock and with the cooler weather that's hit, I'm going to go down there and do some fossil picking.

 

[dlgoff]

Do you know what this fossil is? A plant or a fish?

http://img11.imageshack.us/img11/5614/08hz.jpg

 

[Evo]

I'd say definitely a leaf.

 

[dlgoff]

I'd say definitely a leaf.

Thank you.

I have some large petrified bones that came out of the side of the Kansas River bank. I believe they are from a bison; back bones, ribs, and thigh. I need to see if I can find them.

 

[Ms Music]

Lucky!

I have 4 days off work, (Thurs - Sun) so I will either a/ forget this thread completely, or b/ remember and post some pictures. Is it okay to post pictures of collections in this thread even though it is called "fossil and rock IDENTIFICATION"?

Obviously the answer was a/. Forgot this thread completely.

Here is my arrow head. I had leaned down to pick up a flake that I had spotted, then noticed a piece of glass sticking edgewise out of the dirt. I decided it was best to remove the glass and throw it away in a garbage can, so I flicked it out with my fingernail and instead found it to be THIS:

Yes, it is clear.

 

[Evo]

Obviously the answer was a/. Forgot this thread completely.

Here is my arrow head. I had leaned down to pick up a flake that I had spotted, then noticed a piece of glass sticking edgewise out of the dirt. I decided it was best to remove the glass and throw it away in a garbage can, so I flicked it out with my fingernail and instead found it to be THIS:

Yes, it is clear.

Oh wow!

The weather is getting cooler and that mountain of fossil rock is calling me. There's a little road that they put a gate across and a "no trespassing' sign, but there's no fence on either side of the gate, so I assume it's ok to just walk into the field where they're bulldozing the rocks into a mountain before they haul it away. I have no intention of going through the gate, that would be wrong. I just know there are some awesome fossils in those rocks.