THE HUANGHAI SEA IN THE LAST GLACIAL PERIOD——ACQUISITION AND STUDY OF SOME NEW DATA ON ITS PALEOGEOG

来源 :Science in China,Ser.B | 被引量 : 0次 | 上传用户:dahaneralpha
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Based on the studies on the sediments of the Huanghai Sea (Yellow Sea) formed in thelast glacial period, the complicated palaeogeographic environments of the Huanghai Sea arefound. By the data newly found in the peat and shell layers, it is revealed that the HuanghaiSea is three times exposed and dried as a continent. And the marine sediments are foundfor the first time in the so-called “continental sediment” formed in the early of thelast glacial period. The evolutionary pattern and geological chronicle of natural environ-ments of the Huanghai Sea can primarily be established by the facts that the reversed polarevents of palaeomagnetic variations in the cores are determined and that the peat layer isdated by using ~(14)C. Based on the studies on the sediments of the Huanghai Sea (Yellow Sea) formed in the glacial period, the complicated palaeogeographic environments of the Huanghai Sea arefound. By the data newly found in the peat and shell layers, it is revealed that the HuanghaiSea is three times exposed and dried as a continent. And the marine sediments are found for the first time in the so-called “continental sediment ” formed in the early of the last glacial period. The evolutionary pattern and geological chronicle of natural environ-ments of the Huanghai Sea can be established by the facts that the cores are determined and that the peat layer is applied by ~ (14) C
其他文献
本文是民办高校体育教学俱乐部模式研究的阶段性成果,确定体育教学俱乐部的目标定位,提炼不同类型俱乐部的改革成果和未来规划。 This article is the staged achievement o
The authors have demonstrated that after a long-term chronic irradiation of 2.17 rad/day for 2 months, the testis of the experimental monkey (Macaca mulatta) i
当代美术创作取得了前所未有的发展,无论是在内容表现上,还是在艺术手法、技术、材质上都得到了大大的扩展和丰富。但是,勿庸讳言,我们在丰富和发展了一些方面的同时,也在丢
《走出巴颜喀拉》是以表现黄河文明,颂扬中华民族精神为主题的百米水墨人物画长卷。画家李伯安从生活中获取创作灵感,从对传统的继承和对西方艺术的借鉴中形成了自己独具特色
The nature of the crust of the Okinawa Trough is different from that of the continental shelf in the East China Sea. The crust beneath the Trough is in transfo
〔Karam JA,etal.J Urol,2011,185(2):439-444〕大约有三分之一的患者在初次诊断肾细胞癌时就已经发生了转移。局限性或根治性肾切除后,也可能出现高达40%的局限性肾细胞癌转
社会经济建设的蓬勃发展带动了教育事业的建设,现阶段高职院校的教学任务就是创新人才培养与教学模式改进,传统的教学模式无法适应现代教育环境的发展,不能完成创新人才培养
反流性食管炎(reflux esophagitis,RE)是指由于食管下段括约肌功能失调,胃十二指肠内容物反流导致的食管粘膜组织破损,引起的食管粘膜炎症。内经检查是有效的诊断方法之一。
海洋水文气象峡道地区的水流特征及其对大型船舶的作用……………………··,……………周起舞1(1)长江口南*两岸间海面坡度的季节性女化…人…含…··占…………··。……
The acidity of precipitation in both clean and polluted areas was calculated for atmospheric CO2 and SO2 in equilibrium with water. pH values of 5 and 4.5 were