| 释义 |
coalification|ˌkəʊlɪfɪˈkeɪʃən|
[f. coal n. + -ification.]
The process by which vegetable matter in the earth becomes coal. Also attrib.
1911Proc. Amer. Philos. Soc. L. 62 Adjacent rocks, containing plant remains, may have contributed to this coalification by means of circulating waters. 1932Discovery Aug. 246/1 The changes in composition during the coalification process..involve only the elimination of oxygen. 1955Nature 5 Feb. 229/1 Coals form a series ranging from peats, through the lignites to bituminous coals and anthracites... Geological evidence suggests that this series represents a continuous and progressive change; the metamorphic process is termed ‘coalification’. 1956Ibid. 17 Mar. 502/2 The same correlation is found in the coalification series. |