Deep-water contourite drifts in the west of North-China platform
Luo, S.; Gao, Z.; He, Y.; Lv, Q. (2010). Deep-water contourite drifts in the west of North-China platform. Geo-Temas 11: 107-108
In: Geo-Temas. Sociedad Geológica de España: Madrid. ISSN 1576-5172, meer
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| Author keywords |
North-China platform, contourite, contourite drifts, contourite successions |
| Auteurs | | Top |
- Luo, S.
- Gao, Z.
- He, Y.
- Lv, Q.
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| Abstract |
The Middle Ordovician on the west margin of North-China platform is represented by a succession of deep-water sediments in which contourites are well developed. The contourites can be classified into: calcarenitic contourite, calcisiltitic contourite, calcilutitic contourite and bioclastic contourite. Calcarenitic contourite is mainly composed of sparite calcarenite and is characterized by coarser grain, very irregular boundary plane, development of parallel stratification and ripple bedding. According to the palaeocorrent and the palaeogeographic format analyse carbonate contourite drift in the research area is unfolded crossing northwest-southeast, forwarding from southeast to northwest along the slope, and compared with other contourite drifts, it has some characteristics of coarser-grained sediment, thicker individual layers, and highly developed calcarenitic contourites and so on. |
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