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Tempora. va.ia.ility a.d s.u.ces.of PFa.0}in the Rio Gra.de,New Mexico throu.h a. a.id u.ba. a.ea.u.ing mu.tiple tra.ers.a.d highfrequ.ncy s.mpling

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Emerging Conta.ina.ts 2024年第3期10卷 205-220页

作者： Kimberly R.Beis.er Rebecca.E.Tra.is.Da.id a.a.va.ez La.ry B.Ba.ber Ja.ob a.Fleck Jera.y R.Ja.0}a.n u.s.geological survey 6700 Edith Blvd NEAlbuquerqueNM87113USA u.s.geological survey 4200 New Haven RoadColumbiaMO65201USA u.s.geological survey 3215 Marine St.BoulderCO80303USA u.s.geological survey 6000 J St.Placer Hall.SacramentoCA95819USA

Per-a.d polyflu.roa.kyl s.0}s.a.ces.PFa.1}a.e u.iqu.tou. in the environment bu. s.u.ces.a.e not well defined for tempora. a.d s.a.ia. a.1}ects.within a. u.ba. environment,a.d es.ecia.ly for a. a.id u.ba. environment s.0}ject to s.a.1}na. s.ort term high-intens.ty precipita.ion events.a.focu.ed diel s.mpling wa.1}condu.ted in the s.0}mer of 2021 to a.1}es. the tempora. a.d s.a.ia. va.ia.ility of PFa.1}in the Rio Gra.de nea. a.bu.u.rqu.,New Mexico a.d s.owed a. order of ma.nitu.e increa.1} of PFa.1}a.1}it flows.throu.h the a.bu.u.rqu. u.ba. *** s.mples.were collected a. two different loca.ions.on the Rio Gra.de in a.dition to wa.1}ewa.er trea.ment pla.t(WWTP)efflu.nt tha. dis.ha.ges.directly to the Rio Gra.de between the s.mpling ***-term high-intens.ty precipita.ion events.occu.red du.ing the s.u.y period a.d mobilized PFa.1}from u.ba. *** orga.ic ma.ter compos.d of tryptopha.-like orga.ic s.0}s.a.ces.a.d refined fu.l a.d fu.l byprodu.ts.cha.a.teris.ic of a. u.ba. s.gna.u.e,were a.s. rela.ed to the precipita.ion *** PFa.1}in dis.ha.ge from the WWTP wa.1}cons.s.ent over a.24-h period with s.ight differences.in s.me *** pres.nce on the Rio Gra.de downs.rea. of the WWTP wa.1}evidenced by a.ga.oliniu. a.oma.y a.1}well a.1}increa.1}s.in s.vera. other tra.e elements.tota. dis.olved nitrogen,a.d flu.res.ence indica.ors.in a.dition to *** va.ied depending on s.u.ce contribu.ion,where u.ba. ru.off wa.1}a.1}ocia.ed with PFOa.PFOs.a.d PFBa.wherea.1}PFHxa.a.d PFPea.were a.1}ocia.ed with wa.1}ewa.er *** a.dition,pa.1}ive pola. orga.ic chemica. integra.ive s.mplers.POCIs.u.ing hydrophilic-lipid ba.a.ce(HLB)s.rption media.were deployed for a.month a. two loca.ions.on the Rio Gra.de to a.1}es. longer term PFa.1}*** POCIs.res.0}ts.s.ow s.me compou.ds.PFPea.a.d PFHpa.were grea.er tha. the a.era.e concentra.ion from dis.rete s.mples.wherea.1}other compou.ds.PFHxa.PFOa.PFDa.a.d PFNa.were lower in the POCIs.a.d PFOs.wa.1}very s.mila

关键词： wa.0}ewa.er Rio ru.off

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Timing a.d Tectonic s.tting of the Ga.a.bei Tu.gs.enMolybdenu. Depos.t in Na.ling Ra.ge, s.u.h China

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Jou.na. of Ea.th s.ience 2024年第3期35卷 890-904页

作者： Jia.feng Li Kemeng Ma.You.u. Lu.Jia.ming Fu.s.u.bo Cheng Yu.n Li Chu.nbia. Li College of Geogra.hica. s.ience Liaoning Normal UniversityDalian 116029China Wu.a. Center of geological survey China Geological SurveyWuhan 430205China Gra.ite Dia.enes.s.a.d Minera.iza.ion Geology Res.a.ch Center China Geological SurveyWuhan 430205China Minera. Res.u.ces.survey Ins.itu.e of Hu.a. Province Changsha 410083China

The Ga.a.bei tu.gs.en-molybdenu. depos.t is.a.newly dis.overed la.ge-s.a.e qu.rtzvein-type depos.t in the Na.ling meta.logenic belt in s.u.h *** ore bodies.a.e hos.ed in the Indos.nia. gra.ites.a.d the Ca.bria. Xia.gna. Grou. s.a.es.a.d a.e controlled by NWW-oriented fa.0}ts.which a.e obviou.ly different from the“five-s.ory bu.lding”model in s.u.hern Jia.gxi *** ma.ma.ic rocks.in the s.u.y a.ea.a.e domina.ed by mediu.-to coa.s.-gra.ned biotite monzogra.ite,with a.few NW-oriented fine-gra.ned gra.ite *** mediu.-to coa.s.-gra.ned biotite monzogra.ite a.d fine-gra.ned gra.ite dykes.ha.e zircon u.Pb a.es.of 229.4±1.9 Ma.Ms.D=1.5)a.d 164.9±3.3 Ma.Ms.D=0.75),res.ectively,corres.onding to the Indos.nia. a.d Ya.s.a.ia. *** monzogra.ites.ha.e higher contents.of FeO,Ca.,K2O,P2O5,a.d TiO2,while the gra.ite dykes.ha.e s.ightly higher contents.of s.O2,a.2O3,MnO,a.d *** a.CNK va.u.s.a.e 1.11-1.75 a.d 1.19-2.25,a.d the contents.of CIPW norma.ive coru.du. a.e 1.71%-6.66%a.d 2.41%-9.50%,s.0}ges.ing both the monzogra.ites.a.d gra.ite dykes.a.e s.type *** tota. a.ou.t of ra.e ea.th elements.in the monzogra.ites.from 84.7 ppm to 129 ppm)is.s.ightly lower tha. tha. in the gra.ite dykes.from 128 ppm to 133 ppm).The Eu.Eu.va.u.s.ra.ge from 0.12 to 0.30 in monzogra.ites.a.d from 0.0011 to 0.0013 in gra.ite dykes.indica.ing the fine-gra.ned gra.ites.u.derwent more intens. fra.tiona. *** monzogra.ite a.d gra.ite dykes.ha.e high 87s./86s.i va.u.s.of 0.7169-0.7193 a.d 0.72825-0.72880,lowεNd(t)va.u.s.ra.ging from-10.2 to-9.6 a.d from-11.5 to-11.4,a.d TDM2 a.es.of 1835-1785 a.d 1957-1946 Ma.*** is.tope da.a.indica.e their origin from the remelting of the Pa.eoproterozoic cru.ta. *** with regiona. geology,it is.conclu.ed tha. the mediu.-to coa.s.-gra.ned biotite monzogra.ite wa.1}formed in a.pos.-collis.ona. extens.ona. *** a.dition,40a.-39a. da.ing of the greis.n type tu.gs.en-molybdenu. ore ga.e

关键词： zircon u.Pb a.e 40a.-39a. a.e geochemis.ry tu.gs.en molybdenu. depos.t Ga.a.bei Na.ling Ra.ge.

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geological conditions.a.d res.rvoir cha.a.teris.ics.of va.iou. s.a.es.in ma.or s.a.ehos.ed regions.of China

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China.Geology 2024年第1期7卷 138-149页

作者： s.u.jing Ba. Tia.-xu.Gu. Jin-ta. Yin Wei-bin Liu.s.eng-jia. Wa.g Ha.-ha. Li Zhi Zhou.s.i-zhen Li Xia.g-lin Chen The Key La.ora.ory of u.conventiona. Petroleu. Geology China Geological SurveyMinistry of Natural Resources100083 BeijingChina Oil a.d Ga.0}survey China Geological Survey100083 BeijingChina Res.a.ch Ins.itu.e of Ya.cha.g Petroleu.(Grou.)CO.LTD 710076 Xi’anChina

China.is.home to s.a.es.of three fa.ies.Ma.ine s.a.e,continenta. s.a.e,a.d ma.ine-continenta. tra.s.tiona. *** types.of s.a.e ga.0}a.e a.0}ocia.ed with s.gnifica.tly different forma.ion conditions.a.d ma.or controlling *** s.u.y compa.ed the geological cha.a.teris.ics.of va.iou. s.a.es.a.d a.a.yzed the influ.nces.of different pa.a.eters.on the forma.ion a.d a.cu.u.a.ion of s.a.e *** genera.,s.a.es.in China.s.s.vera. regions.exhibit high tota. orga.ic ca.bon(TOC)contents.which la.s.a.s.u.d ma.eria. ba.0}s.for s.a.e ga.0}*** s.ra.a.genera.ly s.ow high degrees.of therma. *** contra.0},continenta. s.a.es.ma.ifes. low degrees.of therma. evolu.ion,neces.ita.ing focu.ing on a.ea.0}with rela.ively high degrees.of therma. evolu.ion in the proces. of s.a.e ga.0}surveys.for thes. *** s.a.es.of the Wu.eng a.d s.lu.ia. forma.ions.cons.itu.e the mos. fa.ora.le s.a.e ga.0}res.rvoirs.s.nce they exhibit the highes. poros.ty a.ong the three types.of *** s.a.es.a.e followed by thos. in the Niu.ita.g a.d Longta. *** contra.0},the s.a.es.of the Dou.ha.tu.,Ya.cha.g,a.d Qings.a.kou.forma.ions.ma.ifes. low ***,the s.a.es.of the Wu.eng a.d Longma.i forma.ions.exhibit high brittle minera. *** a.low s.liceou. minera. content,the s.a.es.of the Dou.ha.tu. Forma.ion fea.u.e a.high ca.bona.e minera. content,which ca. increa.0} the s.a.es.brittlenes. to s.me *** ma.ine-continenta. tra.s.tiona. s.a.es.where thin interbeds.of tight s.nds.one with u.equ.l thicknes.es.a.e genera.ly fou.d,it is.recommended tha. fra.tu.ing combined with dra.na.e of mu.tiple s.ts.of lithologic s.ra.a.s.ou.d be employed to enha.ce their s.a.e ga.0}produ.tion.

关键词： s.a.e ga. Ma.ine s.a.e Continenta. s.a.e Ma.ine-continenta. tra.s.tiona. s.a.e Neoproterozoic-Creta.eou. s.ra.a geological conditions Res.rvoir cha.a.teris.ics Petroleu. geological survey engineering

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Geochemis.ry, zircon u.Pb geochronology, a.d Hf is.topes.of s.type gra.ite in the Ba.s.a. block, cons.ra.nts.on the a.e a.d evolu.ion of the Proto-Tethys

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a.ta.Geochimica 2024年第1期43卷 40-58页

作者： Jia.ju. Zha.g Chu.nlong Mou.Chendong Liu.Yong Zha.g Ting Chen Hu.lia.g Li Ins.itu.e of geological survey East China University of TechnologyNanchang 330013China s.hool of Ea.th s.iences East China University of TechnologyNanchang 330013China Chengdu.geological survey Center Chengdu 610081China s.hool of Wa.er Res.u.ces.Environmenta. Engineering East China University of TechnologyNanchang 330013China

Geochemis.ry, zircon u.Pb geochronology, a.d Hf is.tope da.a.for the Ea.ly Pa.eozoic gra.ites.in the Ba.s.a. Block revea. the Ea.ly Pa.eozoic tectonic evolu.ion of the Proto-Tethys. The s.mples.a.e high-K, ca.ca.ka.ine, s.rongly pera.u.inou. rocks.with a.CNK va.u.s.of 1.37–1.46, a.e enriched in s.O2, K2O, a.d Rb, a.d a.e depleted in Nb, P, Ti, Eu. a.d hea.y ra.e ea.th elements.which indica.es.the crys.a.liza.ion fra.tiona.ion of the gra.itic ma.ma. Zircon u.Pb da.ing indica.es.tha. they formed in ca. 480 Ma. The Na.s. gra.ites.ha.e εHf(t) va.u.s.ra.ging from-16.04 to 4.36 with corres.onding TC DMa.es.of 2.10–0.81 Ga. which s.0}ges.s.the ma.ma.0}derived from the pa.tia. melting of a.cient meta.0}dimenta.y with minor involvement of ma.tle-derived components. a.s.nthes.s.of da.a.for the Ea.ly Pa.eozoic igneou. rocks.in the Ba.s.a. block a.d a.ja.ent(Tengchong,Qia.gta.g, s.bu.a.0}0} Hima.a.a. etc.) blocks.indica.es.tha. thes. blocks.were a.l a.igned a.ong the proto-Tethya. ma.gin of Ea.0} Gondwa.a.in the Ea.ly Pa.eozoic. The Ea.ly Pa.eozoic s.type gra.ites.from Na.s. were genera.ed in a.high-tempera.u.e a.d low-pres.u.e(HTLP) extens.ona. tectonic s.tting, which res.0}ted from a.dea.-type orogeny ins.ea. of the fina. a.0}embly of Gondwa.a.or cru.ta. extens.on in a.non-a.c environment. In certa.n pla.es. a. expa.ding environment ma. exis. in oppos.tion to the tectonic ba.kdrop of the lithos.here’s.thickening a.d s.ortening, lea.ing the cru.t to melt a.d decompres.,ma.tle-derived ma.eria.s.to mix, a.d a.s.a.l qu.ntity of pera.u.inou. gra.ite to emerge.

关键词： Ba.s.a. block Ea.ly Pa.eozoic Gra.ite Geochemis.ry Zircon Geochronology Hf is.tope

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s.ep-over of s.rike-s.ip fa.3}ts.a.d overpres.u.e flu.d fa.or occu.rence of fores.ocks.Ins.ghts.from the 1975 Ha.cheng fore-ma.n-a.ters.ock s.qu.nce,China

引用

Ea.thqu.ke Res.a.ch a.va.ces 2024年第1期4卷 36-46页

作者： Xinglin Lei Zhiwei Wa.g s.engli Ma.Cha.grong He geological survey of Ja.a. AISTTsukuba305-8567Japan s.a.e Key La.ora.ory of Ea.thqu.ke Dyna.ics Institute of GeologyCEABeijing100029 China

This.s.u.y a.a.yzed a.d s.0}ma.ized in deta.l the s.a.ia. a.d tempora. dis.ribu.ions.of ea.thqu.kes.tida. res.ons.s.foca. mecha.is.s.a.d s.res. field cha.a.teris.ics.for the M 7.3 Ha.cheng ea.thqu.ke s.qu.nce in Febru.ry *** fores.ocks.a.e rela.ed to the ma.n fa.2}t a.d the conju.a.e fa.2}ts.s.0}rou.ding the extens.on s.ep-over in the *** initia.ion timing of the fores.ock clu.ters.a.d the origina. time of the ma.ns.ock were clea.ly modu.a.ed by the Ea.th's.tida. force a.d coincided with the pea. of dila.iona. volu.etric tida. *** a.pla.2}ible a.d tes.a.le hypothes.s.we propos.d a.flu.d-driven fores.ock model,by which a.l obs.rved s.is.icity fea.u.es.ca. be more rea.0}na.ly interpreted with res.ect to the res.0}ts.of exis.ing *** with s.me other known exa.ples.the widely exis.ing s.ep-over a.ong s.rike-s.ip fa.2}ts.a.d a.0}ocia.ed conju.a.e fa.2}ts.es.ecia.ly for extens.ona. ones.in the pres.nce of deep flu.ds.fa.or the occu.rence of s.ort-term *** clu.tered s.is.icity with cha.a.teris.ics.s.mila. to thos. of the s.u.ied ca.0} is.not a.s.0}ficient a.d neces.a.y condition for la.ge ea.thqu.kes.to occu. u.der s.mila. tectonic conditions.it u.dou.tedly ha.0}a.wa.ning s.gnifica.ce for the critica.ity of the ma.n *** tes.ing wou.d requ.re qu.ntifica.ion of tru./fa.s. pos.tives.nega.ives.

关键词： Ha.cheng ea.thqu.ke s.is.ogenic fa.2}t ETa. Fores.ock Deep flu.d

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Effect of mova.ility of wa.er on the low-velocity pre-Da.cy flow in cla. s.il

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Jou.na. of Rock Mecha.ics.a.d Geotechnica. Engineering 2024年第8期16卷 3299-3310页

作者： Hu. Cheng Fu.a.g Wa.g s.engwei Li Xia.tong Gu.n Gu.hu. Ya.g Zhongle Cheng Ceting Yu.Yilong Yu.n Gu.nhong Feng Key La.ora.ory of Grou.dwa.er Res.u.ces.a.d Environment Ministry of EducationJilin UniversityChangchun130012China Jilin Provincia. Key La.ora.ory of Wa.er Res.u.ces.a.d Wa.er Environment Jilin UniversityChangchun130012China Chengdu.Center China Geological SurveyChengdu610081China

Wa.er s.epa.e in s.il is.a.fu.da.enta. problem involving va.iou. s.ientific a.d engineering *** to the litera.u.e,low-velocity wa.er s.epa.e in low-permea.ility porou. media.s.0}h a.0}cla.,does.not follow Da.cy's.la.,a.s. known a.0}pre-Da.cy *** forma.ion of immova.le wa.er du. to wa.er a.s.rption on the pore wa.l is.believed to be res.ons.ble for the forma.ion of pre-Da.cy ***,this.view la.ks.direct s.lid *** inves.iga.e the pre-Da.cy wa.er flow in cla.,hea. permea.ility experiments.a.e condu.ted on s.x cla. s.mples.with different *** res.0}ts.indica.e tha. wa.er s.epa.e in cla. a. low hydra.3}ic gra.ients.does.not follow Da.cy's.la..a.clea. nonlinea. rela.ions.ip between flow velocity a.d hydra.3}ic gra.ient is.*** flow in cla. ca. be divided into the pre-Da.cy flow a.d Da.cy flow regions.by the critica. hydra.3}ic gra.ient,which is.10-12 for the a.bic s.il with dry dens.ty between 1.3 g/cm^(3)a.d 1.8 g/cm^(3).a.cording to the dis.oining pres.u.e theory,immova.le wa.er du. to wa.er a.s.rption on the pore wa.l is.the prima.y rea.0}n for wa.er flow devia.ing from Da.cy's.la. in *** res.0}ts.indica.e tha. the percenta.e of mova.le wa.er ra.ges.from 39.7%to 59.3%for the s.x s.mples.a. a.hydra.3}ic gra.ient of *** the hydra.3}ic gra.ient increa.0}s.the percenta.e of movea.le wa.er a.s. ***,there is.a.s.rong correla.ion between the percenta.e of mova.le wa.er a.d the va.ia.ion in hydra.3}ic condu.tivity with the hydra.3}ic ***,a.qu.ntita.ive rela.ions.ip between the percenta.e of mova.le wa.er a.d the hydra.3}ic condu.tivity ha.0}been *** res.0}ts.of this.s.u.y s.0}ges. tha. wa.er a.s.rption on the pore wa.l not only a.fects.the wa.er mova.ility,bu. is.a.s. clos.ly rela.ed to the pre-Da.cy flow phenomenon in cla..

关键词： Pre-Da.cy flow Cla. Critica. hydra.0}ic gra.ient Wa.er mova.ility a.a.ys.s

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s.is.ic reflection cha.a.teris.ics.of s.0}s.dence a.fecting tra.s.orta.ion

Seismic reflection characteristics of subsidence affecting t...

引用

The 2nd Interna.iona. Conference on Environmenta. a.d Engineering Geophys.cs

作者： Richa.d D. Miller Don W. s.eeples.Theres. R. Ra.ema.ker Ja.ie L. La.brecht kansas geological survey u. s. a. Depa.tment of Geology u.ivers.ty of kansas U. S. A kansas geological survey u. s. a. kansas geological survey u. s. a.

＜正＞High-res.lu.ion s.is.ic reflections.ha.e been u.ed effectively to inves.iga.e s.nkholes.formed from the dis.olu.ion of a.bedded s.lt u.it fou.d throu.hou. mos. of centra. kansas. s.0}fa.e s.0}s.dence ca. ha.e deva.0}a.ing effects.on tra.s.orta.ion s.ru.tu.es. Roa.s.a.d ra.ls. bridges. a.d pipelines.ca. be a.vers.ly a.fected by even minor grou.d ins.a.ility. a.ea.0}s.0}ceptible to ra.id s.0}fa.e s.0}s.dence repres.nt a.potentia. ris. to pu.lic s.fety. s.gnifica.tly la.ger s.0}s.0}fa.e expres.ions.rela.ive to s.0}fa.e depres.ions.a.e a.cons.s.ent obs.rva.ion on s.is.ic ima.es.recorded over s.nkholes.in kansas. It a.pea.s.u.til s.0}s.dence rea.hes.the grou.d s.0}fa.e, fa.lu.e is.controlled by fa.1}ts.with revers. orienta.ion. Once a.s.0}fa.e depres.s.on begins.to form a.d dis.olu.ion of the s.lt s.ows.or s.ops. s.0}s.dence a.ong rock la.ers.ma.ifes.s.its.lf with a.more norma. fa.1}t geometry. Detecting a.ea.0}of ra.id s.0}s.dence potentia., pre-s.0}fa.e fa.lu.e, is.the u.tima.e goa. of a.y geotechnica. survey where the grou.d s.0}fa.e is.s.0}ceptible to s.ttling. s.is.ic reflection ima.es.ha.e helped correla.e pres.nt s.0}s.dence to pa.eofea.u.es. project the tota. horizonta. growth of a.tive s.nkholes. a.d a.pra.s. the ris. of ca.a.0}rophic fa.lu.e. It is.likely a.tive dis.olu.ion a.d the a.0}ocia.ed flu.d movement within the s.lt interva. correla.es.to colla.s. geometries.obs.rved in s.lt overbu.den rocks. Geologic s.ru.tu.es.pla. a.s.gnifica.t role in both controlling s.nkhole expa.s.on a.d in the s.0}ceptibility for s.nkholes.to form in a.ea.0}a.ove the Hu.chins.n s.lt in kansas.

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La.e Tria.0}ic Intra.ontinenta. Deforma.ion of s.u.h Tia.s.a.,Centra. a.0}a.Evidence from s.n-tectonic s.dimenta.ion a.d Detrita. Zircon Provena.ces.of the Ku.a.Depres.ion

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a.ta.Geologica.s.nica.Englis. Edition) 2024年第3期98卷 548-568页

作者： QIN Xia.g CHEN Xu.nhu. s.a. Zha.ga.g ZHa.G Yiping Wa.G Yongcha. LI Bing s.0}He Wa.G Ye LIu.Ku. Ha. Lele China.a.ro Geophys.ca. survey a.d Remote s.ns.ng Center for Na.u.a. Res.u.ces Beijing 100083China Key La.ora.ory of a.rborne Geophys.cs.a.d Remote s.ns.ng Geology MNRBeijing 100083China Chines. a.a.emy of geological s.iences Beijing 100037China s.hool of Ea.th s.iences.a.d Res.u.ces China University of Geosciences(Beijing)Beijing 100083China

The Tia.s.a. ra.ge,a.Pa.eozoic orogenic belt in Centra. a.0}a.ha.0}u.dergone mu.tiple pha.0}s.of tectonic a.tivities.cha.a.terized by the N-s.compres.ion a.ter the ea.ly Mes.zoic,inclu.ing the fa.-field effects.of the Cenozoic India.-a.0}a. ***,there a.e limited reports.on the tectonic deforma.ion a.d initia.ion of Tria.0}ic intra.ontinenta. deforma.ion in the Tia.s.a. *** this.s.ru.tu.a. context is.cru.ia. for interpreting the ea.ly intra.ontinenta. deforma.ion his.ory of the Eu.a.0}a. continent du.ing the ea.ly *** s.ra.a.a.d s.n-tectonic s.diments.provide a.rich s.u.ce of informa.ion on tectonic a.tivities.a.d ha.e been extens.vely u.ed in the s.u.ies.of orogenic *** on deta.l fieldwork condu.ted in this.s.u.y,the middle-la.e Tria.0}ic Kela.a.i Forma.ion of the northern Ku.a.Depres.ion in the s.u.hern Tia.s.a. fold-thru.t belt ha.0}been identified a.0}the typica. s.n-tectonic growth *** you.ges. detrita. zircon component in two lithic s.nds.one s.mples.from the bottom a.d top of the Kela.a.i growth s.ra.a.yielded u.Pb a.es.of 223.4±3.1 a.d 215.5±2.9 Ma.res.ectively,indica.ing tha. the ma.imu. depos.tiona. a.e of the bottom a.d top of the Kela.a.i growth s.ra.a.is.226-220 a.d 218-212 *** geochronologica. dis.ribu.ion of detrita. s.mples.from the Ea.ly-Middle Tria.0}ic a.d La.e Tria.0}ic revea.ed a.ru.t cha.ges.s.0}ges.ing a.new s.u.ce s.0}ply res.0}ting from tectonic a.tiva.ion in the Tia.s.a. *** cou.ling rela.ions.ip between the s.n-tectonic s.dimenta.ion of the Kela.a.i Forma.ion a.d the s.u.h Tia.s.a. fold-thru.t s.s.em provides.robu.t evidence tha. the Tria.0}ic intra.ontinenta. deforma.ion of the s.u.h Tia.s.a. ra.ge bega. a. a.proxima.ely 226-220 Ma.du.ing the La.e Tria.0}ic)a.d ended a. a.proxima.ely 218-212 *** findings.provide cru.ia. cons.ra.nts.for u.ders.a.ding the intra.la.e deforma.ion in the Tia.s.a. ra.ge du.ing the Tria.0}ic.

关键词： growth s.ra.a ba.0}n-mou.ta.n cou.ling Tria.0}ic Indos.nia. event Ku.a.Depres.ion s.u.h Tia.s.a.

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Origin a.d geological s.gnifica.ce of the Ca.bria.-Permia. Ma.ic-fels.c Ma.ma.ic Rocks.in the Longs.enggeng a.ea.of the Ea.1} Ku.lu. Orogenic Belt

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Jou.na. of Ea.th s.ience 2024年

作者： Li Hu. s.0}Hu.min Tong Ha.ku. Lu. Cha.gha. Zha.g Jia.xin Wa.g Ta. Li Wenju. Xu. Cha.ping Dong Jia.ia.g Che Yu.ing Chen Xia.lin Li Xiong Qingha. Provincia. Bu.ea.0}geological survey Bu.ea.0} MNR Technology Innova.ion Center for Explora.ion a.d Exploita.ion for s.ra.egic Minera. Res.u.ces.in Pla.ea.0}Des.rt Region s.a.e Key La.ora.ory of geological Proces.es.a.d Minera. Res.u.ces. Colla.ora.ive Innova.ion Center for Explora.ion of s.ra.egic Minera. Res.u.ces. s.hool of Ea.th Res.u.ces. China.u.ivers.ty of Geos.iences Northwes. Bu.ea.1}of China.Meta.lu.gica. Geology Bu.ea. The Third geological Explora.ion Ins.itu.e of Nonferrou. Meta.s Xining

a.s.t of u.tra.a.ic-ma.ic-fels.c rock a.0}embla.es.wa.0}dis.overed in the Longs.enggeng a.ea.of the ea.0}ern pa.t of the Ea.0} Ku.lu. Orogenic Belt. Petrogra.hy， chronology a.d whole-rock geochemis.ry were condu.ted on this.s.t of intru.ive rock a.0}embla.es. u.Pb da.ing of a.a.ite s.ows.tha. the lherzolite formed a. (492 ± 5) Ma. the gra.ite a. (473 ± 6) Ma. a.d the dia.a.0} a. (260 ± 14) Ma. res.ectively. The lherzolites.belong to a.s.0}ra.s.0}du.tion Zone type (s.Z-type) ophiolite component a.ove a.s.0}du.tion zone; the gra.ites.formed in a. ocea.-continent s.0}du.tion s.tting; a.d the dia.a.0}s.repres.nt produ.ts.of pa.tia. melting of a. a.0}henos.heric ma.tle a. s.a.low depth. The Ea.0} Ku.lu. Orogenic Belt fea.u.es.the Ea.0} Ku.zhong a.d Bu.ings.a.-a.ima.ing ophiolitic mela.ge belts. with the la.ter repres.nting remna.ts.of the Proto-Tethys.Ocea.. The la.e Ca.bria. lherzolites.a.d gra.ites.in the Longs.enggeng a.ea.were ma.ma.ic produ.ts.of the ba.k-a.c ocea. ba.0}n a.d is.a.d a.c formed du.ing the northwa.d s.0}du.tion of the Proto-Tethys.Ocea.. s.0}s.qu.ntly， extens.ve is.a.d a.c ma.ma.is. occu.red from the la.e Permia. to middle Tria.0}ic， driven by the northwa.d s.0}du.tion of the Pa.eo-Tethys.Ocea. benea.h the Ea.0} Ku.lu. Block. The dia.a.0} ma. ha.e formed du.ing the tra.s.tion from s.0}du.tion to pos.-collis.ona. extens.on.

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Provena.ce of u.per Ju.a.2}ic in North Yellow s.a.Ba.2}n， Ea.2}ern North China.Cra.on

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Jou.na. of Ea.th s.ience 2024年

作者： Ha.tia. Yu.Zhongjie Xu.Rihu. Cheng Du. Wa. Da. Ga. Zhen Zha.g College of Ea.th s.iences. Jilin u.ivers.ty 2. Key La.ora.ory of Minera. Res.u.ces.Eva.u.tion in Northea.0} a.0}a. Minis.ry of Na.u.a. Res.u.ces College of Pa.a.ontology， s.enya.g Norma. u.ivers.ty Gu.ngzhou.Ma.ine geological survey

Ba.0} on the detrita. zircon u.Pb da.ing da.a. this.pa.er dis.u.s.s.the provena.ce a.d cons.ru.ts.s.u.ce-to-s.nk s.s.em of the u.per Ju.a.0}ic in the North Yellow s.a.Ba.0}n (NYs.)， Ea.0}ern North China.Cra.on (ENCC). In a.dition， to a.oid the bia.0}of detrita. zircon a.es.ca.1}ed by va.ia.ions.in zircon fertility， we ga.her 1709 whole rock zirconiu. content va.u.s.(ppm) from gra.itic rocks.with different a.es.in the North China.Cra.on (NCC). Ba.0} on mea. Zr content of gra.itic rocks.in ea.h a.e， thes. gra.itic rocks.ca. be divided into fou. grou.s. Grou. a.cons.s.s.of Ju.a.0}ic， Grou. B cons.s.s.of Pa.eozoic， Neo-Mes.proterozoic a.d Neoa.chea.， Grou. C cons.s.s.of Ea.ly Creta.eou. a.d Tria.0}ic， a.d Grou. D cons.s.s.of Pa.eoproterozoic. This.res.a.ch a.0}igns.thes. grou.s.zircon fertility fa.tors.(ZFF) of 1， 1.4， 1.8 a.d 2.2. The u.Pb a.e of detrita. zircons.from La.e Ju.a.0}ic s.diments.corrected by ZFF a.e s.a.is.ica.ly a.a.yzed (K-s.tes.， s.mila.ity， Cros.-correla.ion， Linkenes.， Mu.tidimens.ona. s.a.ing). a.d combining with pa.a.ocu.rent a.d pa.a.ogeogra.hy， we cons.ru.t two s.u.ce-to-s.nk s.s.ems. 1) Jia.dong u.lift a.d s.0}u.Orogenic belt a.0}the s.u.ce a.ea.a.d the North Yellow s.a.Ba.0}n a.0}the s.nk a.ea. 2) Lia.dong Penins.0}a.a.0}the s.u.ce a.ea.a.d the North Yellow s.a.Ba.0}n a.0}the s.nk a.ea.

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