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Sandstone

sandstone

A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.

Different names are aplied to the various kinds of sandstone according to their composition; as, granitic, argillaceous, micaceous, etc.

(Science: chemical) flexible sandstone, the finer-grained variety of itacolumite, which on account of the scales of mica in the lamination is quite flexible. Red sandstone, a name given to two extensive series of British rocks in which red sandstones predominate, one below, and the other above, the coal measures. These were formerly known as the old and the new Red Sandstone respectively, and the former name is still retained for the group preceding the Coal and referred to the devonian age, but the term New Red Sandstone is now little used, some of the strata being regarded as permian and the remained as triassic.


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What is this juvenile mammal?

I found this critter in SE Utah in the sandstone slickrock desert. It looks much like a baby squirrel but is far too big. Scott in Idaho

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by Scott111
Sun Aug 21, 2011 1:39 am
 
Forum: Zoology Discussion
Topic: What is this juvenile mammal?
Replies: 4
Views: 2916

The Fiber Disease

... is deposited at relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, and basalt. Opal is one of the mineraloids that can form or replace fossils. The resulting fossils, though not of any extra scientific ...

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by codon blue
Mon Dec 11, 2006 12:46 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5428065

The Fiber Disease

... department's carbon sequestration program. The Frio Brine Project is designed to determine how the CO2 moves through brine- filled, highly porous sandstone that's representative of formations found worldwide. By monitoring the CO2 flow with technologically advanced instruments during the next ...

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by London
Sun Oct 22, 2006 2:39 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5428065


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