lithology


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  • noun

Synonyms for lithology

the branch of geology that studies rocks: their origin and formation and mineral composition and classification

References in periodicals archive ?
Drainage texture indicates channel spacing in a fluvial dissected terrain which depends on a number of natural factors such as lithology, soil type, climate and vegetation.
Additionally, pre-stack inversion is useful for redeveloping brownfield 'as it gives more details about reservoir properties' through providing 'multiple impedance attributes and more resolution about lithology, porosity, and the fluid filling the pores,' as Shady Negm, CEO of Earthtec, told Egypt Oil and Gas.
In order to further analyze the compressive strength and pre-peak energy of coal-rock combined body, this paper chooses the height ratio, lithology, and slope angle as factors, select three levels for each factor, and conduct orthogonal test.
More specifically, the study focuses on the sedimentary environment and lithology of the area, the parameters of hydrocarbon source rock and the characteristics of minerals, as well as aims at revealing the enrichment mechanisms in JOS and establishing its enrichment model.
He describes the importance of elastic parameters inversion to identify the fluid and lithology. Aki and Richards (2002) approximation of Zoeppritz (1919) equations and Connolly (1999) defined equation 3 (Appendix I) for elastic impedance.
When the roof lithology is a hard roof, the concentration of horizontal stress in the lateral lower strata of the gob is higher than that of the common roof, such that it is easy to form a dangerous area of compressional failure in the lower strata.
Due to the shallow buried coal seam, the roof lithology has been affected by weathering and other geological processes, and thus, the geological conditions for engineering have changed over time.
[6] show that magnetic properties of soils from regions with different geological and environmental settings are influenced primarily by lithology while different soil types play apparently no role, even though Hanesh et al.
The used available databases for possible impact factors, respectively, are stratum and lithology, structure characteristics, volcanic activities, water chemical characteristics, geothermal gradient, seismic activities, and hot water temperature.
The lithology of the Laoling formation ([Pt.sub.1]z) is dolomitic marble, with an average thickness of 467 m, the lithology of the Changbai formation ([T.sub.3]c) is rhyolite and rhyolitic pyroclastic rocks and the average thickness is 1300 m, the lithology of the Junjianshan formation ([Q.sub.1]pj) is basalt and olivine basalt and the average thickness is 189 m, the lithology of the Baitoushan formation ([Q.sub.2]b) is trachyte and tuffaceous trachyte and the average thickness is about 130 m, and the lithology of the Bingchang formation ([Q.sub.4]bc) is alkaline pumice and the average thickness is about 51.5 m (Figure 1).
The bifurcation ratio ranges from 2 to 8.5 and the average bifurcation ratio of the basin is 3.42 which specifies that this region is homogeneous in lithology and tectonically stable.
PCRWR's Groundwater Management and Investigation Cell Deputy Director Mohammad Tanveer said that the council conducted a number of exploratory surveys to determine underground lithology of the aquifer as well as its quality and extent.
PCRWR's Groundwater Management and Investigation Cell Deputy Director Muhammad Tanveer said that the council conducted a number of exploratory surveys to determine underground lithology of the aquifer as well as its quality and extent.
The physical properties of the geologic formations include pore-fluid pressure, rock lithology, porosity, permeability, and oil or water saturation.
Other predisposing factors include soil thickness and strength, rainfall direction, lithology, fracture, and root strength.