img

官方微信

高级检索

中国沙漠 ›› 1999, Vol. 19 ›› Issue (4): 338-342.

• 论文 • 上一篇    下一篇

闽东南沿海老红砂沉积地层与形成时代

曾从盛, 陈居成, 吴幼恭   

  1. 福建师范大学地理研究所, 福建福州 350007
  • 收稿日期:1999-09-26 出版日期:1999-12-20 发布日期:1999-12-20
  • 作者简介:曾从盛(1954-),男(汉族),福建宁化县人,副研究员,硕士,主要从事地貌与第四纪研究。
  • 基金资助:
    福建省自然科学基金项目(D96006)和国家自然科学基金项目(49671012)

Sedimentary Stratum and Forming Age of the "Old Red Sand" along the Coast of Southeastern Fujian

ZENG Cong sheng, CHEN Ju cheng, WU You gong   

  1. Institute of Geography, Fujian Teacher's University, Fuzhou 350007, China
  • Received:1999-09-26 Online:1999-12-20 Published:1999-12-20

摘要: 采用岩石地层学、磁性地层学和地球化学等方法,结合TL、ESR和14C等测年,对广泛分布于闽东南沿海的老红砂沉积地层及其形成时代进行了划分。结果表明,该区老红砂沉积地层可综合划分为5个地层段,其中老红砂层可分出3个地层段,分属60~40 ka B.P.、30~25 ka B.P.和20~10 ka B.P.所形成;两个古土层,反映大约在40~30 ka B.P.和25~20 ka B.P.老红砂的发育有过两次较长时间的沉积间断或减弱。

关键词: 地层划分, 形成时代, 老红砂, 闽东南沿海

Abstract: Based on the analysis of lithostratigraphy, magnetism, geochemistry, and the datings of TL, ESR and 14C, the sedimentary stratum and forming age of the "old red sand" that is widespread in the coastal area of southeastern Fujian Province can be divided into three stages as 60~40 ka B.P., 30~25 ka B.P. and 20~10 ka B.P.

Key words: stratigraphic dividing, forming age, the "old red sand", coastal area of southeastern Fujian

中图分类号: