| 单词 | corrosion zone |
| 释义 | > as lemmascorrosion zone d. Geology. The gradual destruction of rock or soil by chemical and solvent action of water, natural acids, etc.; also, the modification of crystals in a rock by the solvent action of residual magma; corrosion zone, the area so modified. ΘΚΠ the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > corrosion corrosion1802 the world > the earth > structure of the earth > constituent materials > rock > texture or colour > [noun] > texture > corrosion zone corrosion zone1903 1802 J. Playfair Illustr. Huttonian Theory iii. 98 Some earths,..such as the calcareous, are immediately dissolved by water; and though the quantity so dissolved be extremely small, the operation, by being continually renewed, produces a slow but perpetual corrosion, by which the greatest rocks must in time be subdued. 1897 Geogr. Jrnl. 10 502 Erosion, corrosion, and hydrostatic pressure have..formed a real sponge of stone. 1903 A. Geikie Text-bk. Geol. (ed. 4) I. 141 The ferro-magnesian minerals of earlier consolidation among basalts and andesites are sometimes surrounded with a dark shell called the corrosion-zone. 1938 Science 15 Apr. 347/2 Soil deterioration or wastage through chemical action may be expressed by the word corrosion, in contrast with soil wastage by physical forces, or erosion. Corrosion is already in use by geologists to some extent to express virtually the same idea as that suggested. 1965 A. Holmes Princ. Physical Geol. (rev. ed.) xviii. 505 Corrosion, wearing-away of surfaces and of detrital particles and fragments by the solvent and chemical action of natural waters. 1968 R. W. Fairbridge Encycl. Geomorphol. 644/2 The limestone surfaces..are etched, pitted and transected...The corrosion is largely ‘biological weathering’, due to carbonic acid and humic acids in soil and around the roots of lichens and mosses. < as lemmas |
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