欧宝体育

geophysical research letters: qingzanggaoyuandongnanyuananningheliuyuduoqicibolulishi: laizisuixiereniandaixuehedimaofenxideqishi

qingzanggaoyuanshidiqiushangzuigaodegaoyuan,qipingjunhaibayu4000mi,mianjichaoguo250wanpingfanggongli,suyou“shijiewuji”zhicheng。zixinshengdaizaoqi,yindu-ouyabankuaipengzhuangyilai,qingzangdiqujinglileqiangliedelongshengyugouzaobianxing,bujinzhudaoledaxingduanliexitongdehuodong,huankongzhiledixingdimaoheshuixigeju,duiquyuqihounaizhiquanqiudaqihuanliuxingshiyechanshenglezhongdayingxiang。yinci,yizhiyilai,qingzanggaoyuandoushilejielulupengzhuangzaoshanguocheng、dibiaojingguanyanhuaheqihoubianhuadetianranshiyanshi。gaoyuandongnanyuan,zaishuiping~1500gonglidejulishang,haibagaoduconggaoyuanfudi~5000mixiajiangzhiyue500mi(tu1),zhezhongdianxingdechangbochangdixingshidegaoyuandongnanyuanmingxianqubieyuqitadedouqiaobianyuan(rugaoyuanyusichuanpendi、talimupendidebianyuandidai)。

gaoyuandongnanyuandechangbodixingshiruhexingchengde?shushinianlai,xuduoxuezhetichubutongdemoxinglaijieshixiangguandiqiudonglixuejizhi。qizhong,daliangmoxingdouguanzhuyushangdikesuoduanhe/huodikezhongxiaburuanruowuzhiliudongduidixingyanhuasuoqidezuoyong。qianzherenwei,zhongxinshizaoqi-jianxinshi,yandaxingduancengdecexianghuayijiyaheshangdikesuoduan,xingchenglegaoyuandongnanyuandezaoqidixing;erhouzherenweidikezenghoudequdonglilaizidizhanduniudunliutiyanxiadiketongdaoliudong,bingyucedixingkuaisuzengchanghebolufashengzaizhong-wanzhongxinshiyilai。youyuzhelianggemoxing,yigeguanzhuyudikekuaitigangxingyundong,lingyigezezhuzhangzhanzhixingliutidezhudaozuoyong,suoyizhelianggemoxingyizhiyebeichengzuoduanyuanmoxing。butongdemoxingyucelebutongdedixingshengchangshijian,suoyiyanjiuquyubolulishi,duiyujieshidixingshengchangdedonglixuejizhiyouzhongyaozuoyong。yuanweijiyannianling-gaochengpoumianshichuantongdeyanjiushouduan,danshisuixiechenjidenianlingfenbukeyitigongjuyouduogedizhidanyuandezhenggewuyuanqudexiangxixinxi,youqishiyongyudishidouqiao、renlibukedadequyu。

anninghedichuqingzanggaoyuandongnanyuan,youbeixiangnanhuiruyalongjiang,qiliuyuzhugandaoyuanningheduanliezaikongjianfenbushangdazhiwenhe(tu1he2)。anningheduanlieshixianshuiheduanliexiangnanzhuanxiangdeyitiaofenzhi,yizuoxuanzouhuaweizhujianjunichongfenliang。qianrendiwenreniandaixueyanjiubiaoming,anningheduanliezaijianxinshihewanzhongxinshifashengliangqihuodong,erqiegailiuyuzaizaogengxinshibeidaduhexiduo,suoyishiyanjiugouzaohuodongyudibiaoyanhuadelianghaoquyu。

zaizhongguokexueyuanguangzhoudiqiuhuaxueyanjiusuozhengdewenyanjiuyuandezhidaoxia,wosuoxingouzaoyuniandaixueshiyanshiwangyizhoufuyanjiuyuan、liuchunruyanjiuyuandeng,yianningheliuyuweiyanjiuqu,kaizhanchenjisuixiediwenreniandaixueyanjiu。womenshitutongguofenxianninghexiandaihechuangchenjiwudenianlingfenbuyuliuyudixingtezheng,tantaoquyubolumoshihexinshengdaiqinshilishi。womenzaianningheganliudongxiliangcezhiliudexiandaihechuangshangcaijilegong12gechenjisuixieyangpin,tiaoxuanlinhuishijinxingliebianjingjicenian(aft)。

tu1 qingzanggaoyuandongnanyuandimaotu。caiseyuandianbiaoshiqianrenzaigaiquyudediwenreniandaiyanjiu。

tu2 anninghedimao、yanxingtezhengyuganliuhedaogaochengpoumianfenxijieguo。

 

suixieaftnianlingjieguorubiao1,dankelinianlingcong~0.1zhi>160 ma,biaoxianchujiaodadefensanxing。daduoshuyangben(anh-3、-7he-11chuwai)weitongguoχ2jianyan,biaomingzhexiekelidaibiaobutongnianlingzufendehunhewu。zhongxinnianlingfanweiwei4.3±0.8zhi20.1±1.7 ma,kenengbiaominggaishiqineifashengguokuaisubolu。womenliyongdensityplotter.jarfenjienianling,shibiele4gezufen,zufenfengzhip1zhip4(biao1)。shigeyangbendoujiexichuwanzhongxinshinianlingfeng(p3),cong6.57±0.51dao13±2 ma。tebieshizaixice,suoyounianlingshujudoubaohanzheyishiqidefengzhi,xicezhiliudeyangbenanh-6shenzhichengdanfeng(~9.0±0.6 ma)fenbu。7geyangbencunzaishangxinshidenianlingfeng(p2),fengzhijieyu3.27±0.64he5.7±1.1 mazhijian。qiyuhuanyougengxinshinianlingfeng(p1,0.92±0.19zhi2.03±0.51 ma)hezaozhongxinshi-jianxinshinianlingfeng(p4,18.6±3.5zhi34.3±5.5 ma)。

 

 

womenjiasheyanjiuquaftfengbishendujibenbaochishuiping,yantiboluyichuixiangyundongweizhu,bucunzaixianzhudeshuipingfangxiangdeduiliuyundong。tongshi,huanjiashezhiliuliuyuneibolusulvkongjianchayihenxiao。zheyang,aftkelinianlingjiuzhishigaochengdehanshu。womenjiyumaerkefulian-mengtekaluo(markov chain monte carlo,mcmc)fangfahekuipertongjijianyan,bianxielesuixiekelinianlingdefanyanchengxu,monidedaoleliuyubolulishi。monijieguo(tu3)biaoming,anningheliuyujinglilesigejieduandeboluguocheng,jizaozhongxinshi-jianxinshi,zhong-wanzhongxinshi,shangxinshiyijidisijizaoqi。suiranwomendemonijiyuyixiliejiashe,danyushijinianlingfengzhifenbujibenyizhi,yincishikexinde。


tu3 tongguosuixiekelinianlingfenbufanyanyuanqubolulishi。

 

ciwai,suixienianlingfenbuyuquyudixingtezhengyecunzaiyizhixing。youbiao1kejian,meiyigenianlingzufen,dongcezhiliudefengzhizongshijiaoxicenianqing,erganliutongyicenanbeichayiquebuxianzhu,zhekenengfanyingdongxiliangcezhiliubolusulvdechayi。dixingfenxijieguoxianshi,liuyuzhengtihejubudixingqifu、poduyijihedaopingjundouqiaozhishu,douchengdonggaoxididetezheng。yinci,fengzhinianlingkongjiantezhengyudixingdouqiaochengdudeyizhixingbiaoming,zijianxinshiyilai,anningheganliudongxiliangcecunzaibolusulvdekongjianchayi。

jiehebenwenyuqianrenyanjiujieguo,womenrenwei,qingzanggaoyuandongnanyuandedixingyanhuabujinyoulaizizhongxiadikeruanruowuzhiliudong、shangdikekuaitihuayihesuoduandegouzaoqudong,jubudixinghuanhuishoudaodisijiheliuxiduodeyingxiang,ershangxinshibolukenengshianningheliuyuxishoulexianshuiheduanliezouhuafenliangdejieguo。

 

yishangyanjiuchengguofabiaoyuguojidixuedingkangrl: wang, y., liu, c., zheng, d., zhang, h., yu, j., pang, j., et al. (2021). multistage exhumation in the catchment of the anninghe river in the se tibetan plateau: insights from both detrital thermochronology and topographic analysis. geophysical research letters, 48, e2021gl092587. http://doi.org/10.1029/2021gl092587。

yuanwenlianjie: http://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021gl092587