overload (o'-ver-load). The amount of sediment that exceeds the ability of a stream to transport it and that is therefore deposited.
GeoWord of the Day
The GeoWord of the Day is a free service of the American Geosciences Institute. All of the terms and definitions are from the Glossary of Geology, 5th Edition Revised.
epicenter (ep'-i-cen''-ter). The point on the Earth's surface that is directly above the focus of an earthquake. Cf: anticenter.
dal . A Scandinavian term for a valley.
resistivity profile . A survey by the resistivity method in which an array of electrodes is moved along profiles to determine lateral variations in resistivity.
net [pat grd] . A form of horizontal patterned ground whose mesh is intermediate between a circle and a polygon. See: sorted net; nonsorted net.
panning (pan'-ning). A technique of prospecting for heavy metals, e.g. gold, by washing placer or crushed vein material in a pan. The lighter fractions are washed away, leaving the heavy minerals behind in the pan.
side plate . A small ambulacral plate in a blastoid; esp. one of two (rarely three) serially repeated wedge-shaped plates lying between the central lancet plate and the adjacent radial or deltoid. Each pair of side plates bears a single erect brachiole.
gulf [karst] . A steep-walled closed depression having a flat alluviated bottom; in some gulfs a stream flows across the bottom (Monroe, 1970).
bouldery (boul'-der-y). Characterized by boulders; e.g. a "bouldery soil" containing stones having diameters greater than 60 cm (24 in.) (SSSA, 1965, p.333).
throat plane . A plane passed through the centers of the spheres in a layer of rhombohedral packing.
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