摘要
辽宁阜新北部至内蒙古库伦旗地区的第四系冲、洪积地层分布广泛,但由于冲、洪积物岩性、岩相比较单调,在纵、横向上变化快,不易进行深入的研究.根据成因、孢粉以及形成时代将研究区第四系冲、洪积物划分出中更新统冲积物、上更新统冲洪积物、下全新统冲洪积物、中全新统冲积物、上全新统冲积物5个填图单位.不同时期的冲、洪积物沉积特征及沉积环境各具特色,形成了不同的地貌特征.确定冲、洪积物的沉积标志,并对其进行详细的划分,可以为研究区甚至我国整个北方地区提供第四系冲、洪积物各方面深入研究的资料.
The Quaternary alluvium-diluvium is widely distributed in the northern Fuxin of Liaoning-Hure Qi of Inner Mongolia region.Yet it is not easy to conduct in-depth research due to simple lithology and petrofacies with sharp variation in vertical and horizontal directions.According to the genesis,sporopollen and forming age,the Quaternary alluvium-diluvium can be divided into five mapping units,namely the Middle Pleistocene alluvium,Upper Pleistocene diluvium,Lower Holocene alluvium-diluvium,Middle Holocene alluvium and Upper Holocene alluvium.The distinctive sedimentary characteristics and environment of different periods of alluvium-diluvium contribute to different geomorphic features.The determination of depositional marks of alluvium-diluvium and detailed divisions can provide data for thorough study in the region and even North China.
作者
赵岩
ZHAO Yan(Shenyang Center of Geological Survey,CGS,Shenyang 110034,China)
出处
《地质与资源》
CAS
2018年第5期417-423,共7页
Geology and Resources
基金
中国地质调查局项目"辽宁1:25万阜新市(K51C002002)幅区调修测"(编号1212011120728)
关键词
第四系
冲、洪积物
沉积特征
辽宁阜新北部
内蒙古库伦旗
Quaternary
alluvium and diluvium
sedimentary characteristics
northern Fuxin of Liaoning Province
Hure Qi of Inner Mongolia
