Thematic The Earth's Bones

**Geodude** · 01-26-2017, 11:59 AM - **2 Likes**

Overtime as I come across these threads, I find they've got the same old customers. Doesn't anyone of the fairer sex participate in these?

Anyway, these two were taken with a 2 MP camera back in the early 90s, then cropped and enlarged, so resolution is not up to current standards. The first is of Denali, which has a lot of rock under it. the second is of Devil's Claw and the terminus of Mendenhall Glacier, which is located right in the middle of the frame.

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**WPRESTO** · 01-26-2017, 04:38 PM - **1 Like**

Twin Rocks - such a clever name - material once well below, now somewhat above the Earth's surface.

**Geodude** · 01-27-2017, 10:36 AM - **1 Like**

Less twins, more like kissing cousins...

OrchidJulie · 02-05-2017, 02:33 PM

Originally posted by Geodude

Doesn't anyone of the fairer sex participate in these?

Indeed, some of us do. I'll post some "bones" when I shoot some... not too many in south Florida!

**WPRESTO** · 02-05-2017, 02:47 PM - **1 Like**

I don't think of Florida as having much outcropping geology, so I was surprised to see the rocks in the first image down in the vicinity of the Treasure Coast, and during a visit to the Keys a limestone quarry with corals all over the cut wall.

**Tamia** · 02-05-2017, 05:35 PM - **4 Likes**

Originally posted by Geodude

Overtime as I come across these threads, I find they've got the same old customers. Doesn't anyone of the fairer sex participate in these?...

You bet. Like me. I started this thread. (For some reason I can't edit the first post to return the lost images there.) Here are a few river potholes, a particular interest of mine. I've even written about them in my weekly column a couple of times. This first photo is of...

River Potholes That Can Swallow a Paddler

And in the next pair, of the same pothole but different perspectives, you can see...

A High and Dry Pothole and...

Grindstones Captured in a Pothole

**Geodude** · 02-06-2017, 07:24 AM

Nice to know this isn't just a guy thing...

Tafoni - unlike river-carved potholes, these may have formed from in place weathering of salt crystals, at least when they occur in arid environments. Photo taken at Chaco Canyon NP, New Mexico.

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**Tamia** · 02-06-2017, 07:39 AM

Originally posted by Geodude

Nice to know this isn't just a guy thing...

Tafoni - unlike river-carved potholes, these may have formed from in place weathering of salt crystals, at least when they occur in arid environments. Photo taken at Chaco Canyon NP, New Mexico.

I've been a rock-head all my life and last I looked I'm still a girl.

That's a cool outcrop. Never have seen anything quite like that here in the Adirondacks. Now birds have sheltered nesting spots, eh?

**rgknief60** · 02-07-2017, 03:04 AM - **2 Likes**

A different viewpoint...flyover in tourist plane on AK trip.

Bones from Above

**WPRESTO** · 02-07-2017, 06:02 AM

Near ZION NP, probably Mesozoic stuff.

**Geodude** · 02-07-2017, 08:02 AM - **1 Like**

Originally posted by Tamia

I've been a rock-head all my life and last I looked I'm still a girl.

That's a cool outcrop. Never have seen anything quite like that here in the Adirondacks. Now birds have sheltered nesting spots, eh?

I did not notice any nesting birds within the cavities (though I wasn't really looking for them), I suppose these make for easy access by predators, such as lizards and snakes, which might discourage nesting.

To continue with WPRESTO's theme of Zion, here's one of what I think were called the Patriarchs. Yes, these dune sands are Mesozoic in age (Jurassic ~ 180 mya), and is known as the Navajo Formation.

**WPRESTO** · 02-07-2017, 08:38 AM - **1 Like**

More red rock in southern Utah, but I don't think this is Navajo SS. Geology is really prevalent in Utah.

**baro-nite** · 02-07-2017, 09:38 AM

Originally posted by WPRESTO

More red rock in southern Utah, bit I don't think this is Navajo SS. Geology is really prevalent in Utah.

Moenkopi, perhaps?

**Skewed** · 02-07-2017, 12:05 PM - **4 Likes**

"Sentinels in the Mist" Sedona, AZ. The rock is actually red, but the image is much more dramatic in monochrome.

**WPRESTO** · 02-07-2017, 02:58 PM

Originally posted by baro-nite

Moenkopi, perhaps?

Tried to revise the post to say I thought it looked like Kayenta, but apparently I forgot to his the save changes button. I'll have to track down where the image was taken - that will put us at the right layer in the column.

01-26-2017, 04:38 PM - 1 Like	#257
WPRESTO Loyal Site Supporter Join Date: Aug 2010 Location: Massachusetts Photos: Gallery \| Albums Posts: 59,107	Twin Rocks - such a clever name - material once well below, now somewhat above the Earth's surface. Attached Images

02-07-2017, 03:04 AM - 2 Likes	#264
rgknief60 Site Supporter Join Date: Oct 2009 Photos: Gallery Posts: 980	A different viewpoint...flyover in tourist plane on AK trip. Bones from Above Last edited by rgknief60; 02-07-2017 at 01:00 PM. Reason: Add location

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02-05-2017, 02:33 PM	#259
OrchidJulie Moderator Loyal Site Supporter Join Date: Jun 2012 Location: Magic City Photos: Gallery \| Albums Posts: 6,936	Originally posted by Geodude Doesn't anyone of the fairer sex participate in these? Indeed, some of us do. I'll post some "bones" when I shoot some... not too many in south Florida!

02-05-2017, 05:35 PM - 4 Likes	#261
Tamia Site Supporter Join Date: Dec 2009 Location: Here, there, and everywhere. Photos: Gallery \| Albums Posts: 4,384 Original Poster	Originally posted by Geodude Overtime as I come across these threads, I find they've got the same old customers. Doesn't anyone of the fairer sex participate in these?... You bet. Like me. I started this thread. (For some reason I can't edit the first post to return the lost images there.) Here are a few river potholes, a particular interest of mine. I've even written about them in my weekly column a couple of times. This first photo is of... River Potholes That Can Swallow a Paddler And in the next pair, of the same pothole but different perspectives, you can see... A High and Dry Pothole and... Grindstones Captured in a Pothole

02-06-2017, 07:39 AM	#263
Tamia Site Supporter Join Date: Dec 2009 Location: Here, there, and everywhere. Photos: Gallery \| Albums Posts: 4,384 Original Poster	Originally posted by Geodude Nice to know this isn't just a guy thing... Tafoni - unlike river-carved potholes, these may have formed from in place weathering of salt crystals, at least when they occur in arid environments. Photo taken at Chaco Canyon NP, New Mexico. I've been a rock-head all my life and last I looked I'm still a girl. That's a cool outcrop. Never have seen anything quite like that here in the Adirondacks. Now birds have sheltered nesting spots, eh?

02-07-2017, 09:38 AM	#268
baro-nite Loyal Site Supporter Join Date: Aug 2011 Location: North Carolina, USA Photos: Gallery \| Albums Posts: 5,294	Originally posted by WPRESTO More red rock in southern Utah, bit I don't think this is Navajo SS. Geology is really prevalent in Utah. Moenkopi, perhaps?

02-07-2017, 02:58 PM	#270
WPRESTO Loyal Site Supporter Join Date: Aug 2010 Location: Massachusetts Photos: Gallery \| Albums Posts: 59,107	Originally posted by baro-nite Moenkopi, perhaps? Tried to revise the post to say I thought it looked like Kayenta, but apparently I forgot to his the save changes button. I'll have to track down where the image was taken - that will put us at the right layer in the column.