surficial deposit

surficial deposit

[sər′fish·əl di′päz·ət]
(geology)
Unconsolidated alluvial, residual, or glacial deposits overlying bedrock or occurring on or near the surface of the earth. Also known as superficial deposit; surface deposit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
According to the distribution of Quaternary surficial deposits, glacial soils are the most common on the territory of Lithuania, making up approximately 41.35% (Guobyte et al.
The rocks exposed in the coal bearing area are sedimentary rocks ranging in age from Jurassic to Pleistocene along with Subrecent and Recent surficial deposits. The coal bearing Chamalang Group comprised of thick sequence of shale/claystone, interbedded sandstone, limestone, marl, gypsum, with beds of coal are assigned in to five units/formations i.e.
It is clear that, rather than a general-purpose ground water hydrology map, the maps should show accurate depths, characteristics of the unconsolidated surficial deposits and their corresponding leaching effects.
Many small-scale landslides in flysch slopes, primarily rotational and translational slides, tend to occur along slip surfaces that are located at the contact between the surficial deposits and the flysch bedrock, within the colluvial surficial deposits (Figure 3(a)) [23], within the flysch rock mass (Figure 3(b)) [24], or as debris flows (Figure 3(c)) [21].
During the last decade more than a dozen geologists and some pedologists and botanists have tackled the surficial deposits of western Ohio for a reinterpretation of Ice Age history.
Today's geological map is no longer simply a graphic representation of bedrock and surficial deposits, but might be better defined as a geospatial distribution of thematic geoscience information.
Field verification consisted of numerous north-south transects in each drainage system, in which geomorphologists described the physical landscape, examined geomorphic surfaces and surficial deposits exposed in natural outcrops such as stream banks and coastal bluffs, and completed soil profiles of exposures in wells, landfill pits, and new house excavations.
Of the 77 CPTs in study, 40 are located in af, 5 in Qht, 2 in Qhec, 7 in Qhes, 3 in Qwc, and 20 in Qws surficial deposits.
In relatively flat-lying areas, a well-developed soil profile with humus cover typically comprises the upper 1 m of most surficial deposits.
The wide range of climates has resulted in wonderfully diverse zones of supergene enrichment and an array of curious surficial deposits that include lithium-rich brines and the famous nitrates of the Atacama Desert.