摘要
作者在江苏连云港海滨首次发现了全新世海滩岩.经岩石样品及簿片、扫描电镜、^(14)C同位素等分析测定,海滩岩主要由陆源碎屑和生物碎屑组成,胶结物为文石和高镁方解石.该地海滩岩主要形成于全新世早期,当时气温高于现在8～10℃,据此对连云港全新世早期古气候、水动力条件、海岸线的发展变化及古地理环境等作了初步探讨.
Holocene beachrock was fired found in places along the coast of Lianyungang, Jiangsu Province. According to analysis, beachrock is mabe up of terringenous clastic and bioclast, the cement are mainly aragonite and high Mg calcite. 14C dating data of beachrock samples show that Lianyungang beachrock formed in the Early Holocene. The temperature when the Lianyungang beachrock formed was 8 - 10℃ higher than now. In this paper, the author has made a preliminary study on the Early Holocene changes of paleoclimate, change of dynamic condition, shifting of coast line and paleogeography environments etc.
出处
《地理科学》
CSSCI
CSCD
北大核心
1998年第3期288-292,共5页
Scientia Geographica Sinica
基金
本文为世界银行贷款资助的国家级科研项目"师专自然地理野外实习的研究与实践"(课题号JG153)子课题的部分内容
关键词
全新世
海滩岩
古气候
连云港
Holocene
Beachrock
Paleoclimate
Lianyungang
