英语词汇“natural mould”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

7. Geology. A concave impression in rock left by a fossil (more fully internal mould); a convex internal cast of a hollow fossil such as a shell. Also (more fully natural mould): the cavity remaining when a fossil has dissolved away. Cf. cast n. 30b.‘Mould’ and ‘cast’ are termed in French respectively moule externe and moule interne.

ΘΚΠ

the world > the earth > structure of the earth > structural features > formations by contents > [noun] > containing fossils > shell impression

mould1671

1671 Philos. Trans. (Royal Soc.) 6 2283 I conclude them [sc. fossil shells found in quarries] lapides sui generis, and that they were not cast in any animal mold.

1748 J. Hill Gen. Nat. Hist. I. 430 These are all the Moulds I have observ'd that are truly distinct from the other fossil bodies... Most of the earths usually distinguish'd by the name of moulds have no right to a place in a history of Fossils.

1839 Civil Engineer & Architect's Jrnl. 2 375/2 They [sc. the roach beds] are full of cavities formed by the moulds of shells.

1854 S. P. Woodward Man. Mollusca ii. 286 Specimens frequently occur in which the outer shell layer is preserved, whilst the inner is wanting, and the mould (‘birostrites’) remains loose in the centre.

1862 Chambers's Encycl. IV. 448/2 Sometimes the whole organism is dissolved and carried off by water percolating the rock, and its former presence is indicated by the mould of its outer surface and the cast of its inner in the rocky matrix.

1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) xii. 256 When naturally produced, the external and internal moulds together are often described as ‘hollow casts’.

1986 G. Culverwell tr. P. Arduini & G. Teruzzi Macdonald Encycl. Fossils 12 If a shell becomes filled with sediment and then dissolves, we are left with an internal mold.

1991 R. Goldring Fossils in Field iv. 80 (caption) Decalcified fine sandstone with moulds of orthid brachiopods and tentaculitids, together with plastic replica.

单词	natural mould
释义	> as lemmas natural mould 7. Geology. A concave impression in rock left by a fossil (more fully internal mould); a convex internal cast of a hollow fossil such as a shell. Also (more fully natural mould): the cavity remaining when a fossil has dissolved away. Cf. cast n. 30b.‘Mould’ and ‘cast’ are termed in French respectively moule externe and moule interne. ΘΚΠ the world > the earth > structure of the earth > structural features > formations by contents > [noun] > containing fossils > shell impression mould1671 1671 Philos. Trans. (Royal Soc.) 6 2283 I conclude them [sc. fossil shells found in quarries] lapides sui generis, and that they were not cast in any animal mold. 1748 J. Hill Gen. Nat. Hist. I. 430 These are all the Moulds I have observ'd that are truly distinct from the other fossil bodies... Most of the earths usually distinguish'd by the name of moulds have no right to a place in a history of Fossils. 1839 Civil Engineer & Architect's Jrnl. 2 375/2 They [sc. the roach beds] are full of cavities formed by the moulds of shells. 1854 S. P. Woodward Man. Mollusca ii. 286 Specimens frequently occur in which the outer shell layer is preserved, whilst the inner is wanting, and the mould (‘birostrites’) remains loose in the centre. 1862 Chambers's Encycl. IV. 448/2 Sometimes the whole organism is dissolved and carried off by water percolating the rock, and its former presence is indicated by the mould of its outer surface and the cast of its inner in the rocky matrix. 1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) xii. 256 When naturally produced, the external and internal moulds together are often described as ‘hollow casts’. 1986 G. Culverwell tr. P. Arduini & G. Teruzzi Macdonald Encycl. Fossils 12 If a shell becomes filled with sediment and then dissolves, we are left with an internal mold. 1991 R. Goldring Fossils in Field iv. 80 (caption) Decalcified fine sandstone with moulds of orthid brachiopods and tentaculitids, together with plastic replica. extracted from mouldmoldn.³ < as lemmas
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> as lemmas