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An approach to the age of Huanghe River in shelf regions of Yellow Sea and Bohai Sea

Chinese Journal of Oceanology and Limnology 2005年第1期23卷 11-16页

作者：于洪军徐兴永李官保 Key Laboratory of Science and Engineering for Marine Ecological Environment SOA Qingdao 266061 China The First Institute of Oceanology SOA Qingdao 266061 China Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

There are two different opinions on the formation history of Huanghe (Yellow) River. One postulates that Huanghe River might have come into existence before Tertiary. The other supposes that it joined up into a long river only in the last stage of Late Pleistocene. The appearance of Huanghe River is believed to have close relation to the uplifting of Tibetan Plateau. It is not likely that it could have come into being before its high elevation riverhead was formed. Today Huanghe River occurred probably during the recession of the sea in glacial periods. In the last glacial age, the climate was very harsh in the area north of the modern estuary of Changjiang (Yangtse) River; some areas were permafrost and the others barren deserts. At that time, eolation was the major exogenic force on exposed shelf. Beginning from 12 Ka BP, the global climate warmed up, resulting in gradual disappearance of continental mountain glaciers retreated, and sea level rose. Consequently, Huanghe River was replenished with water to become modern river system. With continued rising of sea level, Huanghe River delta moved continuously eastward.

关键词： Tibetan Plateau Huanghe River monsoon shelf desertification

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