- 行业: Earth science
- Number of terms: 26251
- Number of blossaries: 0
- Company Profile:
An international scientific society that fosters the transfer of knowledge and practices to sustain global soils. Based in Madison, WI, and founded in 1936, SSSA is the professional home for 6,000+ members dedicated to advancing the field of soil science. It provides information about soils in ...
A cutan with a consistent relationship with natural surfaces of soil material. It does not occur immediately at the surfaces. Similar to hypo-coating.
Industry:Earth science
A coarse grained, clastic rock composed of angular fragments (>2mm) bonded by a mineral cement or in a finer-grained matrix of varying composition and origin.
Industry:Earth science
A compound which donates or supplies electrons during metabolism and is thereby oxidized.
Industry:Earth science
A great soil group of the intrazonal order and hydromorphic suborder consisting of soils with eluviated surface horizons underlain by B horizons more strongly eluviated, cemented, or compacted than associated normal soil.
Industry:Earth science
A mineral resulting from the decomposition of a primary mineral or from the reprecipitation of the products of decomposition of a primary mineral.
Industry:Earth science
A soil in which the surface layer, at least in the tillage zone, is in the pH 6. 6 to 7. 3 range.
Industry:Earth science
A general term for a course or channel along which water moves in draining an area.
Industry:Earth science
(i) A tubular-shaped void. (ii) A natural stream that conveys water; a ditch excavated for the flow of water.
Industry:Earth science
A collective term for all clastic volcanic materials that are ejected from a vent during an eruption and transported through the air, including ash (volcanic), blocks (volcanic), cinders, lapilli, scoria, and pumice. Tephra is a general term which, unlike many volcaniclastic terms, does not denote properties of composition, visicularity, or grain size.
Industry:Earth science
