摘要:
太平口下边滩位于上荆江沙市河段内涴市河湾与沙市河湾之间过渡河段,太平口下游南岸(图1)。滩尾与三八滩(心滩)隔水相望,滩体长7km,面积7.5km。滩头较窄,滩尾宽,头尾皆有串沟。有一滩脊纵贯东西把滩体分为南北两坡。南坡滩头3.5°、滩中1°、滩尾3.7°;北滩头2.8°、滩中0.7°、滩尾0.9°。按200m×300m网格点在滩面取样105个,挖探槽18条,粒度分析158个,鉴定重矿物110个,轻矿物104个,粘土矿物6个,微量元素测定19个,有机碳18个。
Abstract:
Along the south bank of the Yangtze river, between the Yuanshi bend and Shashi bend, there is a point bar which is named the Tai-Ping-Kou Downstream the Po-int Bar. Adjacent to it at the downstream, there is a channel bar(the Bar or Sanbatan), which is 7km in length and has an area of 7.5sq.km,Three-Eight with a nar-row fore and a wide tail, it appeares to be a planimetric form of wedge. A dinal ridge ranges all the way at both the fore and the tail.across the bar and there are some transversal longitu-furrows According to the 200m by 300m network, we have takes I05 samples on the surface of the bar sad dug 18 flutes(in depth of 1-2m).158 samples were used for the 19 for trace elements, 110 grain-size analysis, 6 for the clay mineral determination, for heavy minerals and 18 for the organic carbon dating.
点击查看大图
下载:
