lithology

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lithology

(lĭth-ŏl′ō-jē) [″ + logos, word, reason]
The science dealing with calculi.
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References in periodicals archive ?
The lower 170 feet (52 m) of this section is composed of fossiliferous siltstone and claystone that are lithologically similar to those identified as the Puente Formation by Gray (1961) approximately 11 km (7 mi) to the north and northwest of the Bedford Canyon locality in the Corona North and Prado Dam 7.5' quadrangles.
Lithologically, the Clayton typically consists of a thin basal sand or gravelly sand, a fossiliferous limestone unit of varying thickness, and a thick unit of fine-grained, glauconitic sand which makes up the majority of the formation (Conant and McCutheon, 1941; Swann, 1999).
The upper Nevado-Filabride rocks are allochthonous and more lithologically varied; they include mica schists with kyanite and staurolite, interlayered mafic metavolcanic rocks, gneisses formed from felsic volcanic rocks, quartzites, and calcite and dolomite marbles.
Parent material contributions are usually assessed using a reference element, which is assumed to be lithologically conserved.
It is lithologically represented by brownish, brownish-gray clays with jarosite tarnish and inter-layers of gray, fine-grained sandstones, and by marlaceous and sideritic concretions.
Lithologically the samples are 1- parallel laminated, very fine to fine grained, angular to subangular and moderately sorted or 2-wavy laminated, fine to medium grained subangular to subrounded and moderately to well sorted.
Lithologically, these rock bodies are nearly identical, and it is possible that, at places where the Alibates has been removed by erosion, the Quartermaster lies directly on the Whitehorse but has not been recognized.
In this area four lithologically distinct alluvial fills are present, the Gunder, Roberts Creek, and Camp Creek members of the Formation, and an informally recognized unit, pre-Gunder alluvium [ILLUSTRATION FOR FIGURE 2 OMITTED].
These rock types have been homogenized in deposits of till and outwash, although ice flowing from the western side of the bay deposited material that is lithologically distinct from till along the eastern shore of Glacier Bay (Ovenshine 1968), where all sites for the current study were located.
Some evidence from recent drilling at Hole 735B in the Southwest Indian Ocean favors this interpretation, linking low magma supplies with a highly tectonized and lithologically discontinuous lithosphere structure.
Lithologically, these formations are comprised of predominant limestone units with occasional shale interbeds at places.