Witte Hi Pt S P Geology

Chert a hard very finegrained extremely dense dull to

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Unformatted text preview: single sedimentary layer, inclined at an angle to the main planes of bedding in a body of rock or unconsolidated deposit. deglaciation - The uncovering of a land area from beneath a glacier or ice sheet by the withdrawal of ice due to shrinkage by melting and evaporation. density current - A gravity-induced flow of one or more currents of varying densities over, through, or under another current. dip - The angle that a structur41 al surface, that is, a bedding or fault plane, makes with a horizontal plane. dolomite - A carbonate sedimentary rock of which more than 50 percent consists of calcium magnesium carbonate. end moraine - A ridge-like accumulation of glacial drift formed at the margin of an actively flowing glacier. formation - A body of rock identified by color, mineralogic composition, grain size and stratigraphic position that is mappable or traceable. freeze and thaw - The mechanical weathering of rock caused by repeated cycles of freezing and thawing of water in pores, cracks, and other openings, usually at the surface. gneiss - A coarse-grained, foliated metamorphic rock marked by bands of light-colored minerals such as quartz and feldspar that alternate with bands of dark-colored minerals. g ranite - A light-colored, coarse-grained, intrusive igneous rock composed of quartz, feldspar, and mica. Holocene - An epoch of Quaternary period ; 10,000 years ago to present time. knob-and-kettle topography - An irregular landscape in which an assemblage of knolls, mounds, or ridges of glacial drift is interspersed with irregular depressions, pits, or kettles that are commonly undrained and may contain swamps or ponds. Laurentide ice sheet - Pleistocene ice sheet that covered most of northern North America east of the Rocky Mountains. limestone - A sedimentary rock consisting chiefly of calcium carbonate, primarily in the form of the mineral calcite. mass wasting - A general term for the dislodgement and downslope transport of soil and rock materials. mastodon - One of a group of...
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This document was uploaded on 03/21/2014 for the course GEOL 3265 at Kean.

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