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青藏科考表明:5.5亿年前柴达木板块与华北板块是邻居
发布时间:2021-06-23     作者:张晔   来源:中国科技网   分享到:

diqiudalubankuaixingchengyilaifenfenhehe,shuyinianqiandediqiudalubankuaigejuyuxianzaidabuxiangtong。zhongguokexueyuannanjingdizhigushengwuyanjiusuozhengzaizhixingdewoguodierciqingzangkekaorenwuzhong,zaichaidamubankuaibeiyuandequanjishandiqushoucifaxianledianxingdeaidikalashengwuqunhuashi,xiangguanhuashihebingchuanchenjibiaoming,5.5yinianqiandeaidikalajiwanqi,chaidamubankuaiweiyuhuabeibankuaifujin,qiegaishiqizheilianggebankuaihenkenengchuyuzhong-gaoweidudiqu,erfeiciqianrenweidediweidudiqu。xiangguanchengguo6yue14rizaixianfabiaoyuguojizhimingdixueleizonghexingqikan《dizhixue》。

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联合考察队伍在全吉山

aidikalashengwuqunshenghuozaijujinyue5.75-5.39yinianqiandeaidikalajiwanqi,shihanwujishengmingdabaofaqianxiquanqiufenbufanweizuiguangdefuzashengwuqun。aidikalashengwuqunbaokuoduozhongleixingdehongtiruanqutishengwu,tamenbujinduilijiezaoqidongwuyanhuajuyouzhongyaoyiyi,qibutongdehuashizuheyeshiaidikalajiwanqidicenghuafenyuduibidebiaozhi。

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全吉山剖面野外照片,其中全吉山生物群产于皱节山组紫红色砂岩底部

juzhongkeyuannanjingdizhigushengwuyanjiusuofuyanjiuyuanpangkejieshao,quanjishandiquweiyuchaidamubankuaibeiyuandeoulongbulukeweilukuai。lianhekaochaduiwuzaiquanjishanpoumianzhoujieshanzufaxiandalianghongtihuashi,jianggaihuashizuhemingmingweiquanjishanshengwuqun。bencizaizhoujieshanzuxinfaxiandeaidikalahuashiyiqianichongweidaibiao。qianichongshiaidikalajiwanqiguzheshengzhangyuhaidideyezhuangtishengwu,shiaidikalashengwuqunzhongzuiweidianxingdehuashizhiyi。zheishijihubeisanxiadiquzhihou,zaizhongguofaxiandediergeaidikalashengwuqunhuashichandi,yeshiqijinweizhizaiqingzanggaoyuanfaxiandezuigulaodehuashishengwuqun。

ciwai,zhoujieshanzuchanchushulianggengweifengfudeshanxijihuashi。shanxijishiyizhongjuyoumijipailiehengwendetiaodaizhuanghuashi。shanxijipubianfaxianzaijujin5.5~5.39yiniandedicengzhong,baokuohuanan、huabei、yindu、xiboliyayijinamibiya,shiyizhongaidikalajimoqiqianzaidebiaozhunhuashifenzi。

qianichongheshanxijizaizhoujieshanzudegongtongchuxian,biaomingzhoujieshanzudechenjishidaihenkenengweijujin5.5-5.39yinianqian。

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全吉山生物群的代表性埃迪卡拉化石恰尼虫(A-C)和陕西迹(E-G)

dizhiyanjiubiaoming,chaidamubankuaiquanjiqunshangbuyuhuabeiditaixiyuanhenanyuandexinyuangudaidicengfeichangxiangsi。biru,zainingxiahelanshandiquheyuxidiqu,xinyuangudaidicengdouyoubingqiyanhefenshazhiyanzucheng。tamenyuquanjiqunshangbudehongtiegouzu(bingqiyan)hezhoujieshanzu(xishayan)zuhefeichangxiangsi,bingqiezaisuixieyandicengzhongdouchanchushanxijihuashi。tongshi,zaishangshudiqu,bingqiyanhesuixieyandicengdezuheyushangfuhanwujihexiafugu-zhongyuangudaidicengjunchengbuzhenghejiechu。

zheixiexiangsixingbiaoming,chaidamubankuaizaiaidikalajiwanqikenengweiyuhuabeibankuaifujin。tongshi,huabeibankuaihechaidamubankuaiaidikalajiwanqibingchuandefayu,biaominggaishiqizheilianggebankuaihenkenengchuyuzhong-gaoweidudiqu,erfeiciqianrenweidediweidudiqu。

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柴达木盆地全吉山、华北板块西缘贺兰山及南缘豫西地区代表性剖面地层对比关系

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埃迪卡拉纪末期(5.5亿年前)柴达木板块与华北板块在全球古地理中的位置


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