| 释义 |
Cotham|ˈkɒtəm|
the name of a village near Bristol, designating an argillaceous limestone having dendritic markings, also called landscape marble or stone. Also Cotham beds.
1816R. Jameson Min. (ed. 2) II. 196 To the same compact marl, may be referred the variety called Cottam Marble. 1822Conybeare & Phillips Outl. Geol. Eng. & Wales I. 264 The lias..occasionally exhibits..dendritical appearances (Cottam stone or marble). 1845P. B. Brodie Hist. Fossil Insects 91 In most parts of the southern sections there is a band of stone locally termed ‘Landscape stone’, or ‘Cotham marble’. 1883[see landscape-marble s.v. landscape n. 5]. 1929L. Richardson in Evans & Stubblefield Handbk. Geol. Gt. Brit. iii. ix. 344 The Cotham Beds, like the underlying Westbury Beds, extend all across the country. 1960L. D. Stamp Britain's Struct. (ed. 5) xii. 129 One band of limestone, the fascinating Cotham marble, was often seen polished in fragments on Victorian mantlepieces. 1968P. E. Kent in Sylvester-Bradley & Ford Geol. East Midlands x. 178 The Cotham Beds are marls which typically form the upper part of the Rhaetic in the East Midlands. |