“olistostrome”的英文意思_释义_用法

单词

olistostrome

释义

olistostrome Geol.|ɒˈlɪstəʊstrəʊm|
[f. as prec. + Gr. στρῶµα bed.]
A sedimentary deposit composed of a heterogeneous mixture of materials and formed by the sliding or slumping of semi-fluid sediment.
1956G. Flores in Proc. 4th World Petroleum Congr. 1955 i. 122/2 By Olistostromes we define those sedimentary deposits occurring within normal geologic sequences that are sufficiently continuous to be mappable, and that are characterized by lithologically and/or petrographically heterogeneous materials, more or less intimately admixed, that were accumulated as a semi-fluid body. In any Olistostrome we distinguish a ‘binder’ or ‘matrix’ represented by prevalently pelitic, heterogeneous material... The name ‘Olistolith’..is applied to the masses included as individual elements within the binder.1972Nature 8 Dec. 328/2 The mixture is now floating in a matrix of middle Miocene olistostrome.

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