济源盆地中三叠世油房庄组的古土壤特征(点击标题下载全文) 已下载

作者:王道生;张国成

作者单位:河南理工大学资源环境学院

摘要:根据野外观测,作者讨论了油房庄组古土壤的特征及其形成环境,认为该组古土壤发育于曲流河泛滥平原上暂时性湖沼泥质沉积以及滨湖粉砂岩沉积两种沉积微相中;与该地区晚三叠世谭庄组的古土壤进行对比后,认为油房庄组古土壤形成时期的古气候比谭庄组更趋于高温干旱环境.

基金:国家自然科学基金资助项目(40172045);河南理工大学博士基金资助项目(105921);

关键词:济源盆地;中三叠世;油房庄组;古土壤;钙质结核;

DOI:10.16186/j.cnki.1673-9787.2005.04.008

分类号:P534.51;P531;

Features of Paleosols from Middle Triassic Youfangzhuang Formation, Jiyuan Basin

Abstract:Based on the field investigation, the paleosol features of Youfangzhuang Formation and their pedogenic environments are discussed in detail.It is suggested that the paleosols of Youfangzhuang Formation developed in the following two depositional microfacies:1) the argillaceous sediments of the temporary lacustrine environment developed in the meandering fluvial plain;2) the siltstones of littoral lacustrine environment.Compared to the upward paleosols of Tanzhuang Formation (Late Triassic) in Jiyuan basin, the conclusion is worked out that paleoclimate and paleotemperature during the pedogenesis of Youfangzhuang Formation are drier and higher than those in the pedogenesis of Tanzhuang Formation.

 
 
Insert title here
Copyright ?2013. All Rights Reserved  河南理工大学出版中心 
 Tel:0391-3987068,3987069;E-mail:
zkxb@hpu.edu.cn,skxb@hpu.edu.cn
建议使用win7以上系统,和IE9及以上浏览器以获得更好的使用体验