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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
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
To: cogitator
3
posted on
12/14/2004 8:20:28 AM PST
by
Eva
To: cogitator
4
posted on
12/14/2004 8:26:48 AM PST
by
conserv13
To: cogitator
5
posted on
12/14/2004 8:28:42 AM PST
by
Slicksadick
(Go out on a limb........Its where the fruit is.)
To: cogitator
More Postplie. The glacial polish across the top is really cool, like walking on a tiled floor.
Photograph by C.D. Miller in 1980
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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.)
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)
To: cogitator
Heres a guy who actually sells the columns for landscaping. Very cool.
Marenakos Columbia River Columnar Basalt |
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2 - 19 columns, and Dish Rock. (Over 19 special order). |
Columbia Premium Landscape |
Natural occurring shapes, mostly hexagonal. Diameter typically 24 - 42 range. Exterior color: Medium to dark brown. Interior color: Black |
Water source stones, entry way monuments, vertical elements, benches, and small retaining walls. Can be custom cut, custom core drilled. |
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8
posted on
12/14/2004 8:56:14 AM PST
by
Slicksadick
(Go out on a limb........Its where the fruit is.)
To: cogitator
Devil's Postpile in California:
9
posted on
12/14/2004 9:05:02 AM PST
by
MineralMan
(godless atheist)
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.
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!!!)
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.)
To: Slicksadick
OK, now I understand comment 4 on this thread.
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!!!)
To: cogitator
Thanks....pics are great.
15
posted on
12/14/2004 12:15:32 PM PST
by
Cedar
To: cogitator
16
posted on
12/14/2004 8:45:37 PM PST
by
WSGilcrest
(go home now)
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