福建漳浦前湖湾硅藻组合及其古环境意义  

Diatom Assemblages and Their Palaeoenvironmental Significance of the Qianhu Bay in Zhangpu, Fujian

作　　者：吴彩容[1] 刘剑秋[1] 王绍鸿[2] 俞鸣同[2] 

机构地区：[1]福建师范大学生命科学学院,福建福州350007 [2]福建师范大学地理科学学院,福建福州350007

出　　处：《海洋通报》2008年第1期75-80,共6页Marine Science Bulletin

基　　金：国家自然科学基金(40476051);福建省自然科学基金(DO610006)

摘　　要：在福建漳浦前湖湾QHP剖面和QHZ钻孔1共取28个硅藻样品,依据硅藻种类的含量变化和硅藻组合特征,自下而上划分为4个硅藻带,其中B带划分出4个亚带,B4亚带进一步划分为2个小亚带。结合14 C测年和沉积地层岩性资料,探讨了该地区晚更新世以来的古环境演化,得出其环境变迁过程由老到新依次为:河流环境-海湾环境-河流环境-海湾河口环境-河流环境-陆相淡水环境-湖泊-风沙环境-滨岸小海湾环境。We fetched 28 diatom Samples totally from the QHP section and QHZ corel on the Qianhu bay in Zhangpu, Fujian. Based on the contents and constitute characteristic of the diatom, we could divide 4 diatom zones from bottom to top and B zone could be divided into 4 diatom smaller zones and B4 smaller zone could be divided into 3 diatom small zones further. Combining with the data ^14C and the lithology datum of the deposition stratum, we have discussed the palaeoenvironment of this area since late Pleistocene and reached it＇s environment changing process （from keeping away from to being close to） that is, River environment-bay environment-river environment-bay river estuary environment-river environment-continental limnetic environment-lacustrine sand blown by wind environment-bank small bay environment.

关 键 词：前湖湾 晚更新世 硅藻分析 古环境 

分 类 号：P534.63[天文地球—第四纪地质学]