| Zhao Songling,Li Guogang. 1991. Origin and shallow-layer structure of the sediments in the Yellow Sea trough. Acta Oceanologica Sinica, (1):107－115 |
| Origin and shallow-layer structure of the sediments in the Yellow Sea trough |
| Origin and shallow-layer structure of the sediments in the Yellow Sea trough |
| Received:July 16, 1990 Revised:July 23, 1990 |
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| 基金项目:Project sponsored by the State Natural Sciences Foundation of China. |
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| Abstract: |
| On the basis of the analysis and study of the records of shallow-layer profiles and information from systematic analyses of some cores and their 14C datings,the sediments of Yellow Sea trough since the final slage the Late Pleistocene are found to have the following features.On the south slope of the trough,it is probably composed of island-shelf de posits.On the mouth of the trough,it is made up of eolian dunes and its deposits.In the central bottom region of the trough where intense desertization occurred in the early stage of the regression,there are parallel oblique beddings in the strata known as the "angle of repose" texture,which demonstrates that the deposits there are composed of eolian sands.And in the late stage,thin derivative deposits developed in the northern part of the trough.On the north slope of the trough,thick-layer derivative deposits developed.This primary sedimentary pattern still remains unchanged since the occurrence of the Holocene transgression. |
| 中文摘要: |
| On the basis of the analysis and study of the records of shallow-layer profiles and information from systematic analyses of some cores and their 14C datings,the sediments of Yellow Sea trough since the final slage the Late Pleistocene are found to have the following features.On the south slope of the trough,it is probably composed of island-shelf de posits.On the mouth of the trough,it is made up of eolian dunes and its deposits.In the central bottom region of the trough where intense desertization occurred in the early stage of the regression,there are parallel oblique beddings in the strata known as the "angle of repose" texture,which demonstrates that the deposits there are composed of eolian sands.And in the late stage,thin derivative deposits developed in the northern part of the trough.On the north slope of the trough,thick-layer derivative deposits developed.This primary sedimentary pattern still remains unchanged since the occurrence of the Holocene transgression. |
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