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Ore deposits formed by lateral secretion are formed by metamorphic reactions during shearing, which liberate mineral constituents such as quartz, sulfides, gold, carbonates, and oxides from deforming rocks, and focus these constituents into zones of reduced pressure or dilation such as faults. This may occur without much hydrothermal fluid flow ...
The rhizosphere is the thin area of soil immediately surrounding the root system. It is a densely populated area in which the roots compete with invading root systems of neighboring plant species for space, water, and mineral nutrients as well as form positive and negative relationships with soil-borne microorganisms such as bacteria, fungi and insects.
Over 90% of ore extracted from orogenic gold deposits is treated by the process of cyanidation. [53] The toxic waste created from this process is stored in tailings ponds, which presents a risk for contamination of soil and water in the event of accidents or negligence by those handling the toxic liquids. [54]
For example, in a human, the arms are lateral to the torso. The genitals are medial to the legs. Temporal has a similar meaning to lateral but is restricted to the head. The terms "left" and "right" are sometimes used, or their Latin alternatives (Latin: dexter, lit. 'right'; Latin: sinister, lit. 'left'). However, it is preferred to use more ...
A concretion is a hard and compact mass formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. [1] Concretions are often ovoid or spherical in shape, although irregular shapes also occur.
Soil formation, also known as pedogenesis, is the process of soil genesis as regulated by the effects of place, environment, and history. Biogeochemical processes act to both create and destroy order within soils.
Soil structure describes the arrangement of the solid parts of the soil and of the pore spaces located between them (Marshall & Holmes, 1979). [1] Aggregation is the result of the interaction of soil particles through rearrangement, flocculation and cementation.
A soil type or a lichen substrate rock type that is rich in or largely composed of calcium carbonate. calceolate Shaped like a slipper. [25] calcicole A plant which thrives in calcareous soil. Also calciphile, calciphyte. Antonym: calcifuge. [25] callose Hardened; thickened; callous. callus. pl. calli. 1. A protruding mass of tissue 2.