中国地质2012,Vol.39Issue(4):972-977,6.
百色盆地右江阶地特征及演化研究
The characteristics and evolution of Youjiang terrace, Bose Basin
摘要
Abstract
Bosc Basin is located in western Guangxi. The Youjiang River flows southeastward through the middle of the Bose Basin. On the basis of field geological survey in combination with previous studies, the authors have reached the conclusion that Ⅰ-Ⅲ order terraces are generally developed in western Bose Basin, and Ⅲ- order terraces which suffered damage by active faults are ladder-like. Ⅳ-order terraces are developed at Fulian Village of Bose. The characteristics of Youjiang terraces are summarized in this paper, and the ages of the terraces deposits are determined. The ages of the subjacent deposits of Ⅱ -order terraces are dated at (16.736±1.422) ×104 a -(17.712±1.506)×104 a BP, whereas the ages of the subjacent deposits of Ⅲ -order terraces are dated at (21.097± 1.793)×104 a-(29.365±2.496)×104 a BP.关键词
百色盆地/右江阶地/构造演化Key words
Bose basin/Yongjiang terraces/tectonic evolution分类
天文与地球科学引用本文复制引用
张鲲,李细光,李志勇..百色盆地右江阶地特征及演化研究[J].中国地质,2012,39(4):972-977,6.基金项目
中国地质调查局“钦杭成矿带(西段)重要金属矿床成矿规律及找矿方向研究”和“广西地震局百色东笋资源综合利用2×300MW火力发电厂技改扩建工程场地地震安全性评价”项目共同资助. (西段)