石油与天然气地质 ›› 1992, Vol. 13 ›› Issue (3): 284-292.doi: 10.11743/ogg19920306

• 论文 • 上一篇    下一篇

苏南五通组风暴沉积与三脊波痕

吕洪波, 夏邦栋, 涂涛   

  1. 南京大学地球科学系 210008
  • 收稿日期:1989-11-29 修回日期:1990-07-09 出版日期:1992-09-25 发布日期:2012-01-16
  • 基金项目:

    国家自然科学基金

STORM DEPOSITS AND TRI-RIDGE MARKS OF WUTONG FORMATION IN SOUTHERN JIANGSU

L? Hongbo, Xia Bangdong, Tu Tao   

  1. Department of Earth Sciences, Nanjing University
  • Received:1989-11-29 Revised:1990-07-09 Online:1992-09-25 Published:2012-01-16

摘要:

苏南五通组风暴沉积,以无锡、江阴一带为最,发育在滨海带,为近源风暴沉积。风暴层面上发育一种特殊的大波痕,作者称其为三脊波痕(tri-ridge ripple marks)。这种波痕为风暴旋涡流在水底相互干涉的结果,应视为风暴沉积的重要标志之一。

关键词: 苏南, 五通组, 风暴沉积, 滨海相, 三脊波痕

Abstract:

The Wutong Formation of Upper Devonian is widely distributed in Southern Jiangsu Province and storm deposits developed in many places in this formation. According to the analysis characteristics,the storm deposits are considered to be proximal facies developed in litteral environment. A new kind of mega-ripple marks were found in the storm de-posits and named"tri-ridge ripple markes"which were resulted by interference of storm vortex flow in water bottom. So the authors point out that the tri-ridge ripple marks are one of discriminative feature for storm deposit especially for proximal storm deposits.