摘要
“亚洲干极”是德日进总结中国北方中生代以来不断干旱化得出的观点。构造运动驱动气候变干是其主导思想。德日进关于中国新生代古地理演化的基本框架至今仍然适用 ,当代研究补充和深化了“亚洲干极”的理论 ,老第三纪行星风系的干热气候逐渐在新第三纪被季风气候取代 ,代表干旱气候的粉尘沉积逐步扩大空间范围 ,湖相沉积则逐渐收缩。2 2MaB .P .,8.5MaB .P .,3.6MaB .P .和 1 .2MaB .P .是“亚洲干极”
The idea of “The Dry Pole of Asia” envisaged by P. Teilhard de Chardin was derived from his thorough observation of the ongoing aridification of North China since the Mesozoic. The principal concept of his idea is the tectonic forcing for the aridification. His fundamental cogitation on Cenozoic paleogeography evolution of China is still faithful at present,while recent research has made great improvement and complement on the theory of “The Dry Pole of Asia”. The warm and dry climate under zonal atmosphere circulation during early Tertiary was progressively replaced by monsoonal climate during Neogene. This transition has induced gradual expansion of dust deposition representative to arid climate and shrink of lacustrine sediments simultaneously,during which “The Dry Pole of Asia” was enhanced during major transitional periods at 22Ma B.P.,8.5Ma B.P., 3.6Ma B.P. and 1.2Ma B.P.
出处
《第四纪研究》
CAS
CSCD
北大核心
2003年第4期366-371,共6页
Quaternary Sciences
基金
国家重点基础研究发展规划项目(批准号:G1 9980 40 81 5)
国家自然科学基金项目 (批准号 :40 2 41 0 0 5和 40 2 0 1 0 0 7)资助
关键词
德日进
亚洲干极
构造驱动
风成红粘土
黄土
P.Teilhard de Chardin,“The Dry Pole of Asia”,tectonic forcing,aeolian red clay,loess
