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outcrop

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outcrop

part of a rock formation or mineral vein that appears at the surface of the earth
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

outcrop

[′au̇t‚kräp]
(geology)
Exposed stratum or body of ore at the surface of the earth. Also known as cropout.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

outcrop

That portion of a rock formation or stratum that breaks the surface of the ground.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Outcrop

 

exposed bedrock at the earth’s surface. Outcrops are generally found along riverbanks, along the slopes of ravines, and on the crests of ridges. Natural outcrops are formed by the action of natural agents, for example running water, glaciers, and wind. Artificial outcrops are either specially created or result from mine work entailing excavations and the construction of ditches, wells, prospect holes, shaft mines, and adits. The study of outcrops makes it possible to elucidate the geological structure of a locality and is widely used in geological surveying.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
Only outcropping quartz has been sampled hence the mineralisation may extend in both width and strike extent beyond the outcrop.
The samples were taken from the base of 1 of 2 outcroppings on the Bear Creek property.
In its press release of June 16th Cancor reported on the results obtained from this channel sampling which confirm the high grade gold values contained in the outcropping known veins which are located 100 to 300 meters apart.
The Hotagen uranium mineralised district continues to deliver impressive results for the company, with sixty-six individual outcropping uranium mineralised areas now identified within Mawson's exploration claims over an 8km by 7km area.'
"Removing the huge rock outcropping would have been prohibitively expensive.
The outcropping features flat rocks that contain layers like those of a wedding cake.
For Pele Mountain, Wawa has everything necessary for a cheap, open-pit mine with the highway accessibility, diamonds outcropping near the surface and a community of miners and prospectors.
Imagine a cross between bonsai trees, ikebana arrangements, and Disney's California Adventure: Each work offers a variation on Brancusian interdependence of sculpture and base, consisting of a tortured outcropping of faux rock--roughly hewn and pieced together from bits of scrap lumber--and functioning as pedestal or shelf for tiny handcrafted trees.
In early September, Pele extracted diamonds from a 4.5 tonne sample collected from a volcanic outcropping on their Festival property which was processed at the site.
The Old Glory Prospect - A new high grade prospect with visible gold at surface The recent discovery of outcropping high grade gold at the Golden Hind Prospect has prompted the Company to conduct further sampling of outcropping quartz veins to the south of Old Pirate.
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