Title: Tidal sedimentary structures from upper precambrian rocks of the Ming Tombs District, Beijing (Peking), China
Abstract: The Ming Tombs District is a famous historic and scenic site in the vicinity of Beijing. The Proterozoic strata of this region contain many types of tidal sedimentary structures. This paper deals mainly with tidal or shallow water sedimentary structures from carbonates but some examples are also described from silicilclastic rocks. The structures include burrow-like tube fillings (from the nearly 2 Ga old Changzhougou Formation), herringbone cross stratification, double-crested interference ripple marks, and lenticular and flaser bedding from carbonate rocks of the Gaoyuzhuang Formation. Well developed sedimentary structures in these upper Precambrian rocks indicate that tidal conditions prevailed throughout deposition of most of a 4500 m thick succession. Supratidal, intertidal and subtidal environments have all been recognised. Widespread occurrence of tidal sedimentary structures in carbonate rocks suggests that they were mainly deposited under the influence of physical processes.
Publication Year: 1985
Publication Date: 1985-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 13
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