甘肃省文县石坊群孢子化石的发现及地质意义  

Discovery and Geologic Sigificance of Spore Fossils in Shifang Group of Wenxian County,Gansu Province

作　　者：王瑶培[1] 刘继庆[1] 苏春乾[1] 王彦学 

机构地区：[1]长安大学地球科学与资源学院,陕西西安710054 [2]河南省灵宝黄金股份有限公司,河南灵宝472500

出　　处：《地球科学与环境学报》2007年第3期240-244,共5页Journal of Earth Sciences and Environment

基　　金：中国地质调查局项目(I48E019011;I48E019012)

摘　　要：在测制甘肃文县地区石坊群地层剖面中发现了孢子化石,共计14个属,56个种,将其与贵州独山、都匀地区的早、中泥盆世孢子化石组合对比,发现组合特征基本一致。因而确定了石坊群地层时代属早、中泥盆世,为石坊群地层划分、时代确定及地质构造发展史研究提供了可靠的依据。Spore fossils including 14 genera and 56 species were discovered in the Shifang Group of Wenxian County, Gansu Province. The discovery indicates that Shifang Group in this area belongs to early-middle Devonian because these spore fossils can be compared with spore fossils of the Dushan and Duyun areas in Guizhou Province. This wonderful discovery has an important geologic significance in the division and time determination of the stratum and tectonic evolution study in this area.

关 键 词：孢子化石 石坊群 地质意义 甘肃省 

分 类 号：P534[天文地球—古生物学与地层学]