深沪湾晚更新世以来的古气候、古海平面与地壳升降运动  

Palaeoclimate, palaeo-sealevel and crustal movement of Shenhu Bay of Fujian Province since Late Pleistocene

作　　者：徐起浩[1] 冯炎基[2] 

机构地区：[1]广东省地震局,广州510070 [2]广州地理研究所,510070

出　　处：《台湾海峡》1990年第3期231-238,共8页Journal of Oceanography In Taiwan Strait

基　　金：国家地震局联合科学基金

摘　　要：本文根据深沪湾沿岸3个孔样品的孢粉、硅藻分析和^(14)C年代学测定,结合该湾潮间带的古油杉森林残迹和古牡蛎贝壳层,研究了该区晚更新世以来的古气候、古海平面变化及其地壳升降过程。The paleo-oyster shell beachrock of 17 480±490a,B. P. and 17 330±470a,B. P. and relic stumps (Keteleeria) of 7 550±130a,B. P. and 7620±130a,B. P. discovered in the intertidal zone of the Shenhu Bay in Fujian Province, brought to light the clear trend of ancient sea level changes and eustatic movement of sea-land interchanges in the region since the Late Pleistocene. The analysis of three coved strata sections the containing diatoms and spore pollen revealed that it was an interglacial warm-wet environment with the same sea level as present in the region 20200—17000a,B. P.. The lukewarm and cool dry climate in that region 7500a, B. P. provided a good environment for the growth of Keteleeria which was drowned by sea water caused by the synthetical result of sea level rising and crust subsidence in the Shenhu Bay since the mid-Holocene.

关 键 词：古气候 古海平面 地壳 升降运动 

分 类 号：P532[天文地球—古生物学与地层学]