摘要
自本世纪５０年代以来，中国的陆架地质学的研究已经取得了长足的进步。尤其是９０年代以来对于晚第四纪的陆架环境的研究，出现以“陆架沙漠化”为首的一系列最新理论和重大发现。综述和总结了这一领域的最新成就：①末次冰期盛时中国陆架区的环境演变特点；②末次冰期盛时出露的陆架平原上的沙漠化现象、成因及证据；③陆架区海底埋藏黄土的发现与沿岸出露黄土的对比分析及意义。
From the 1950’s,the study of China’s contiental shelf Geology has made greatprogress,especially in the study of the environmental evolution of.Late Quaternary. Thispaper summarized the new advances in this field.1.Environmental evolution on the China's shelf during the LGM period: ①Sea-level changes and land-ocean distribution during the LGM period;②The prevailed wintermonsoon and its environmental effect;③ Relationship of sea-level and river retreated and extended.2.The shelf desertization and its evidences during the LGM period in the marine stra-turn:①Cold-dry environment extended into the exposed shelf region;②Aeolian deposits and derivative sediment on the shelf;③Buried geomorphological evidences of shelf desertization.3.Origin of the buried loess in the seabottom and exposed loess in the coastal zone:①The relationship of desert and loess deposits;②Shelf desertization and the coastal loess;③The strong paleomonsoon prevailed and loess accumulation on the exposed shelf area.
出处
《地球科学进展》
CAS
CSCD
1995年第6期531-536,共6页
Advances in Earth Science
关键词
陆架
第四纪
地质学
季风
陆架沙漠化
Shelf Quaternary geology,Paleo-winter monsoon,shelf desertization,Buried loess.
