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Geology Picture of the Week, December 12-18, 2004: Giant's Causeway (Interactive)
Van Es Familie Homepages ^

Posted on 12/14/2004 8:18:05 AM PST by cogitator

How this happened: I was thinking of posting a picture of Mount Rushmore before the carvings (free-associated Mount Rushmore because I heard them talking about Rushmore Mall on the Weather Channel) but there aren't any quality pictures of Mount Rushmore before the carvings. Sooo... I started thinking about rock formations, thought about Devil's Tower, remembered the Giant's Causeway, and here we are:



TOPICS: Arts/Photography; Education; Miscellaneous; Outdoors; Science
KEYWORDS: antrim; basalt; columnar; cooling; hexagonal; ireland; jointing; lava
OK, let's make this an interactive Geology Picture of the Week. Post other nice pictures of columnar jointing! (Devil's Tower, Yellowstone National Park, Devil's Postpile, and the Palisades of New York are some examples, but I'm sure there are more.)
1 posted on 12/14/2004 8:18:05 AM PST by cogitator
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To: 2Trievers; headsonpikes; Pokey78; Lil'freeper; epsjr; sauropod; kayak; Miss Marple; CPT Clay; ...
* ping *

Note the invitation in the leading comment to be interactive on this thread.

2 posted on 12/14/2004 8:19:16 AM PST by cogitator
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To: cogitator

bump


3 posted on 12/14/2004 8:20:28 AM PST by Eva
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To: cogitator

Houses of the Holy


4 posted on 12/14/2004 8:26:48 AM PST by conserv13
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To: cogitator
California's version.

5 posted on 12/14/2004 8:28:42 AM PST by Slicksadick (Go out on a limb........Its where the fruit is.)
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To: cogitator
More Postplie. The glacial polish across the top is really cool, like walking on a tiled floor.
Glacier-polished columns of basalt, Devils Postpile National Monument, California
Photograph by C.D. Miller in 1980

These glacial striations are carved in the top of a columnar-jointed basalt lava flow. The lava flow was erupted between 200,000 and 100,000 years ago in the Middle Fork of the San Joaquin River valley. The lava flow was then eroded during subsequent glacial periods, as shown by the finely polished and deeply striated surface. This exposure is from along the trail at the top of the Devils Postpile in the Devils Postpile National Monument.


6 posted on 12/14/2004 8:32:11 AM PST by Slicksadick (Go out on a limb........Its where the fruit is.)
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To: cogitator

copyright FreeFoto.com
7 posted on 12/14/2004 8:37:38 AM PST by skeeter (OBL "Americans" won't honor any law that interferes with their pocketbooks)
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To: cogitator
Heres a guy who actually sells the columns for landscaping. Very cool.

Marenakos Columbia River Columnar Basalt

 
Available forms: 2’ - 19’ columns, and Dish Rock. (Over 19’ special order).

 

Also available as:

Columbia Premium Landscape

 

Characteristics:

Natural occurring shapes, mostly hexagonal. Diameter typically 24” - 42” range. Exterior color: Medium to dark brown. Interior color: Black

 

Uses: Water source stones, entry way monuments, vertical elements, benches, and small retaining walls. Can be custom cut, custom core drilled.

*NOTE: Typically weighs approximately 1,000 lbs. per linear foot. Special handling may apply to this stone.

 


8 posted on 12/14/2004 8:56:14 AM PST by Slicksadick (Go out on a limb........Its where the fruit is.)
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To: cogitator
Devil's Postpile in California:


9 posted on 12/14/2004 9:05:02 AM PST by MineralMan (godless atheist)
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To: Slicksadick

I wonder where the quarry(s) for columnar basalt are located. The most picturesque occurrences are probably parks, but there's a lot of basalt out there.


10 posted on 12/14/2004 9:14:38 AM PST by cogitator
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To: cogitator
i can't remember sh!t anymore... was it the Who or Led Zeppelin that had the album cover done on Giants???
11 posted on 12/14/2004 9:17:12 AM PST by Chode (American Hedonist - Dubya... F**K YEAH!!!)
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To: Chode
Zepplin..
12 posted on 12/14/2004 9:23:30 AM PST by Slicksadick (Go out on a limb........Its where the fruit is.)
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To: Slicksadick

OK, now I understand comment 4 on this thread.


13 posted on 12/14/2004 9:29:42 AM PST by cogitator
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To: Slicksadick
ahhhh yes, it all comes back to me now, from so long ago and far away... thankx
14 posted on 12/14/2004 11:11:35 AM PST by Chode (American Hedonist - Dubya... F**K YEAH!!!)
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To: cogitator

Thanks....pics are great.


15 posted on 12/14/2004 12:15:32 PM PST by Cedar
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To: cogitator

16 posted on 12/14/2004 8:45:37 PM PST by WSGilcrest (go home now)
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