- 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 ...
Single crystals, or arrangements of crystals of relatively pure fractions of the plasma that do not enclose the s-matrix of the soil material but form coherent masses; their morphology is consistent with their formation and present occurrence in original voids in the enclosing soil material.
Industry:Earth science
An organism whose optimum temperature for growth falls in an intermediate range of approximately 15 to 35°C. Synonymous with "mesophile. \
Industry:Earth science
Arrangement of strata inclined at an angle to the main stratification. This is a general term having two subdivisions; cross-bedding, in which the cross-strata are thicker than 1 cm, and cross-lamination, in which they are thinner than 1 cm. A single group of related cross-strata is a set and a group of similar, related sets is a coset.
Industry:Earth science
An end moraine that marks the farthest advance of a glacier and usually has the form of a massive arcuate or concentric ridge, or complex of ridges, underlain by till and other drift types.
Industry:Earth science
An instrument in the form of a cylindrical rod with a cone-shaped tip designed for penetrating soil and for measuring the end-bearing component of penetration resistance. The resistance to penetration developed by the cone equals the vertical force applied to the cone divided by its horizontally projected area.
Industry:Earth science
Mollisols that have a udic soil moisture regime with mean annual soil temperatures of 8°C or more. Udolls have no calcic or gypsic horizon, and are not saturated with water for periods long enough to limit their use for most crops.
Industry:Earth science
Remains of fish excreta and similar materials that occur in some organic soils.
Industry:Earth science
Bacteria able to convert organic phosphorus into orthophosphate.
Industry:Earth science
A zonal great soil group consisting of soils with a moderately thick, dark-brown A horizon over a lighter colored horizon that is above a zone of calcium carbonate accumulation.
Industry:Earth science
Areas filled with earth, or with earth and trash mixed, usually by or under the control of man.
Industry:Earth science
