用古脊椎动物化石中氟含量测定地质年代  

GEOLOGICAL DATING BY THE FLUORINE CONTENTS IN THE FOSSILS OF ANCIENT VERTEBRATE ANIMAL BONES AND TEETH

作　　者：宋世战[1] 谷祖纲 胡尚斌[1] 王瑞光 蔡体梁 

机构地区：[1]兰州大学,甘肃省地矿局

出　　处：《甘肃地质学报》1994年第1期96-100,共5页Acta Geologica Gansu

基　　金：甘肃省自然科学基金

摘　　要：用质子诱发γ－射线发射技术（ＰＩＧＥ）测量了甘肃、青海、宁夏和内蒙古四省区的６０个古动物骨骼和牙齿化石中的氟含量，得到与地质年代有较明显的相关性的结果，为氟含量测定地质年代提供了一组较系统的数据，显示出该方法有较大的应用前景。如果考虑围岩对化石氟含量的影响等因素，有可能得到更满意的结果。The fluorine contents for 60 pieces of fossils of ancient vertebrate animal bones and teethcollected from Gansu,Qinghai,Ningxia and Neimenggu were measured by proton induced γ-ray emission technique(PIGE),The measured fluorine contents,which offered a group of sys-tematic data for geological fluorine dating,were correlated distinctly to geological ages,andshowed a wide application possibility of fluorine dating.Considering the affect of the fluorineinsurroundings rock to the accumulation of fluorine in fossils,the fluorine dating would bemore procise.

关 键 词：氟含量 地质年代 古脊椎动物 化石 

分 类 号：P533[天文地球—古生物学与地层学]