1、新疆地质XINJIANGGEOLOGY2024年3月Mar.2024第42卷 第1期Vol.42 No.1?日期?2023-11-02?日期?2024-01-25?(1993-),?,新疆乌鲁木齐人,?,2018年?业?中国地质大学(?京)地质?专业,?从事区域地质矿产?查?作?E-mail:?及地?化?(中?地质?查(?)?,?100012)?低(60?120?),能?录?地?,?地质?域?到广泛?。?总?人研究?,介绍?理、?数据?理与?,?述?方法?地质?的?,?矿?、?地质?、?地?、?地?研究及?时?等。?方法是研究地质体低?热?信?最有?方法之?,?目?年?人为?大、?合低U?年?
2、地质体?、?期?等?。?,为?地?地质体?,?合?技术手?。?低?热年?学?地质?性?位?年?学是?定地质事件年?、研究地?的学科?1?。低?热年?学为?位?年?学的?要?支学科,?研究矿物地?到地?的时?-?,?的?-热?2?。目?常?的低?热年?学方法?、?(U-Th)/?e、?、?(U-Th)/?e等?2?。?的?低,?地?的?事件?,?体?、?地?、?地?等?域?有广泛?。?的研究?源?20世?50年?末期,?国西尔?和?发?核?电?子?产生?(?),可?学?大?,?学?到?3?,?会?地质?时期内?4?。20世?70年?,有学者发?中的?定?会?,?入?的?,即?性元?体系?矿物内?
3、有?的?,?、?(U-Th)/?e、?、?(U-Th)/?e?的?是200?280?、160?200?、60?120?和 40?80?。20 世?80 年?末期,Zeta?法(年?方法)的?入和?元?学?的?出,?着?技术?成?5?。?入本世?,计?方法(?eFTy、QTQT?维热-?学?件和Pecube?维热-?学?)?年方法的?,?国内外学者?行为的?,?时?年方法的发?(?1)?6?。目?研究主要?中?方法的?,?方法及地质?的系统总?,?方法的理?和?。?,本文?系统总?发?的国内外文?,?理、?数据?理、?果的地质?等方面介绍,?广大学者?理?方法,?技术方法?地质学中的?。?编?1
4、000-8845(2024)01-145-07?P597?P183.1?A?1?Fig.1 Mineral closure temperatures(据Gleadow,1981,1984;Reiners and Brandon,2006)新疆地质2024年1磷灰石裂变径迹的测年原理及实验步骤1.1?是?238U自发?产生?电子的子体,?库?作?,向?方向?性?。自发?(即?自?件?,?自?的?)随时?发生?,?年?主要据238U自发?产生的?数?定?7?。基?上述?理,Wagner和Van Den?aute?出?年公?:?-1a?ln?a/(?f)?(?s/?i)?1?(1)?中:?a?总?常
5、数?f?常数?自?中?的235U/238U?常数?235U热中子?发?的有?面?(常数)?热中子?(可?定)?s?自发?i?发?。上述公?年?主要和自发?和?发?有关。?来?,?的?为10 nm,?为16.3?m。?自?件?,自发?,?学?行?和研究。?,?学?行?大?,?。?发?,即?外?作?的?,?外?法(ED法)直接?定,?LA-ICP-MS(?-电?合等?子质?)法?定?中?的238U的含?,?发?数?。1.2?外?法(ED法)为常?的?手?,?可?成自发?、?面、自发?、?外?、热中子?和外?发?6?(?2)。?体?:?自发?。?之上时,?中?开?自发?。?外?的?含?品(?、中?性
6、?和中?等)?行?、?、?、?选和?,?行?,?目?选?单矿物?面。?,?和?5?3?行?合?作?,?最?大?50?的?单矿物?行?,?证?面?,?有?,?自发?。?含?的?20?、5.5?NO3的?中,?20 s?大自发?的?外?。?外部?(?为低U?)和?的?热中子?。?行热中子?,?发?产生?,?和矿物?邻的外?录产生的?发?外?发?。?外?48?的?F中?40 min?大?发?,?学?定?发?的数?。?成上述?作?,?的?和?外?尔?司?学?1 250?的?大?数?,?定?上?行?体?方向(c?)的自发?数?、Dpar?(与?行的与?面?交的?象最大直?),?及与C?的?时?定?的?外
7、?2?Fig.2?ternal?etected Method(?M)(据?文?8)146第42卷 第1期?:?定年技术?理及地质?的?上?发?的数?。2?2.1?Trac?ey是?国?-?尔?-?大学Dun?l 基?Wagner 和 Van Den?aute?定的?年公?开发的?款?件?9?,主要?自发?和?发?品?年?。2.1.1?开数据?入?面,?入?品的名?(Sam?4 TrackKey?主?Fig.4 Main window of TrackKey software.?3?Fig.3 Window for processing of data files(据?文?9)147新疆地质20
8、24年ple code)、位?(Locality)、?位(Stratigraphy)、?性(Petrography)、?者(Observer)、?信?(Microscope)等基本信?,?入自发?数(Ns)、?发?数(Ni)、统计面?(A),?的?(RhoD)和Zeta?(据?年?品?出?作者的校?数)等?选?,?选?U?类?(U-glass type)和矿物?类(Mineral),?查?写信?,?(O?)。2.1.2?据?数据的?入,?品基本信?,?数(Cryst)、?面?(Area)、自发?数(Ns)、自发?(Ns)、?发?数(RhoS)、?发?(RhoI),?时?出RhoS与RhoI的?
9、关性?、单?年?、单?年?性?、单?年?直方?及?品?年?(Pooled Age)、?年?(Mean Age)、中心年?(Central Age)和?方?(P(c2))(?5)。?中?方?为n-1?自由?的c2?(n为矿物?数),常?来?年?的?征?10?。?P(c2)?5?时,?年?,?明?品?单的?。P(c2)?5?时,?合年?,有?年?,?明?品?的热?11?。为?行?品年?,Brandon开发?款BINOMFIT?件,计?矿物?的?合年?,据单矿物的成?合年?行合理?,?地质?。2.2?自发?的形成常为?可?,?中,?年?和?录?品?低?的热?信?,可?的?。从?6可?出,?1?的?大
10、?13.5?m,?单?征,?品?2?的?大?13.5?m,?10?m的?,?品?发生?,?发生?的?作?3?11?m,?单?征,?品从?全?到?地?4?的?10?m,?大?14?m的?,?品可能发生?,?部?5?的?10?m,?品发生?,?部?时?。为?的年?、?、Dpar?等?数的地质?,Gallagher基?etcham等?出?元?12?,开发?QTQT热?件,主要是?、(U-Th)/?e数据和?质?等?定矿物?的热?。?件?C和C?编写,?Macintosh 上?os x10.6?行开发,?Intel?理?(32位?64位)?行?行。2.2.1?QTQt?,?新?QTQT数据文件(Bui
11、ldNew QTQt data file),?入?品信?,?品编号(Sample),?(X),?(Y)和?(?)、Ns,Ni,Comp(Dpar?)、Zeta?,Nd,?定?计?中心年?(?6)?选?投?(USE projected trac?s),?入?定的?本?和?(Etchant)?,?有?数据,请单?“No LengthData”?(?7)。?5?Fig.5 Schematic map of track length distributions and the corresponding thermal historiesmodified after Armstrong(据Armstr
12、ong,2005)148第42卷 第1期?:?定年技术?理及地质?的?2.2.2?成上述?作?,?限定?(Constrained point)、?地?信?(Constrained Present day Temperature)、?(Annealing Model)等,?查?信?,?“Save data for reload”,?文件,?“o?”。最?(Burn-in)和?(Post-burn-in)的?数,?件?热?行总的?数。?中,可据?品?信?,?位、(U-Th)/?e数据等,?定限定?件,?限定?,?取?合地质事?的?。从?8可?出?13?,?为时?-?,?为?直方?。基?区域?合的时
13、?和上?生?中生?地?,?品WT-1403?定(160?20)Ma、120?200?的限定?。?品WT-1403?的?年?和?的?年?关系,?和预?的?关系,?果的可?性。?外,?定?品?180 Ma?的?,即180?100Ma?品发生?的?,?1?/Ma,随?100 Ma?,?品?,?大?5?/Ma,直到75 Ma,?品?低?1?/Ma,?入8 Ma?,?地?。总体来?,?品WT-1403?100?75 Ma和8?0 Ma?期?,?大?5?C/Ma,?中第?期?与?向NW向?行?期?有关,第?期?与?西地?系的形成有关。3 地?定年技术有?录?品?低?(60?120?)的?信?,?地?公?的
14、?。?技术?,?年?和?数据?热?信?,?上述?方法,可?限定?内?。?方法可?定年方法?合,?研究地质体?低?的地质?。3.1?矿?是我国?世?源的?要来源。?为?成矿域?要?成部?,目?发?大?-大?-?矿?。由?新生?来?发生?的?和?,?矿的?和时?。?WT-14?3?Fig.?The thermal history modelling result of sample WT-14?3(据Clinkscales et al.,2020)?7?Fig.7 Input Interface of Fission track length data?6?Fig.6 Input Interfac
15、e of Fission track count data149新疆地质2024年?,?等?和(U-Th)/?e技术?区域?新生?矿?和?(?5-2),?出?成矿?自?新世?来?时?,?和中?低?2?m和?4?m,?成矿?6?8?m,?区?矿?大。Qiu et al.?中国?性?矿开?形和低?热年?学研究,发?由?的?鲁地体的?和?的?,?世?鲁地体形成的?为?矿?,发生大规?流体?,?世?矿?的形成。3.2?地质?行?位?华?地区中部?,?、?西地?系和?行?,为中国?部?的地?14?,?形成?向?张?要?。?等?-?地和?地区?生?中生?品?行?和?,?出?100?21 Ma、21?8 M
16、a和8 Ma 3期?15?。任?民等?中部15件?品?行单?年?和热?,?地区?世和?新世?来?期?事件,第?期与?的?有关,第?期是由?向?的?地区发生大规?,?区域上发生广泛?。Chang et al.?行?地区低?热年?学?品?行?,总?行?发?的低?热年?数据,?出?行?、?世、?新世和中新世4?的?,4?的?与?向NE向的?作?、?向SE向的?作?、?向SE向的?作?和印?-?有关?16?。3.3?地?是研究?地热?(?-?)的?要手?之?,基本?理:?是?地?物的热年?数据?地自?的热?是?地的?行热?研究?地的?。?地中低?热年?学时,?年?果与地?年?行?,?年?大?地?年?方
17、?,?年?发生热?,?物源的热?,?之?地?之?的热?。?,Li等?地内?低?热年?数据,?与?地?年?行?,发?和(U-Th)/?e数据发生?热?,?合热?,?地?之?发生?向?的?,?中心发生向?17?。McRivette等基?的?,?合?U-Pb?年,明?可可西?地和?部?木?地的关系,?部新生?地的?18?。3.4?地?地?直是国内外学者研究的热?,?全球的?有?。?et?el 等?部?基?行?和(U-Th)/?e?,发?70?55 Ma发?,随?55?48 Ma?从0.3?m/Ma?到0.01?m/Ma,?明?时?地?面?19?。Li等?来自?地体、?地体和?-?地体12件?品,?合
18、热?果,?中部?62?40 Ma发生?,?,?着?40 Ma形成,?部?40?24 Ma?,?明?40 Ma之?发生向?20?。3.5?性?,可?时?和?限定?时?。?,Pang等?自?上?的11?品?行?,?出?地区?15?10 Ma?21?。Staisch等?可可西?地中部?地区?上?品,?行?和(U-Th)/?e,限定?地区?的?发生?34 Ma之?,?持续到27 Ma?22?。4 结?与?本文?要?述?的基本?理、?方法和地质?。?管?方法目?发?,?区域的地质?关?作?,?目?方法?Zeta?人为?大、低U?年?地质体?大、?期?等?。?研究地质体?,?合?技术手?。?,LA-ICP
19、-MS 技术?30?年?定?和合成?的元?成。随着?外?和?质?的广泛?,?技术?的?,?能?出?成?的?维(和?维)?。?来?可能会?和?质?,?新的研究?域。?电?合等?子150第42卷 第1期?:?定年技术?理及地质?的?体质?(LA-ICP-MS)技术?广泛?位基体内?出的?象中元?和?位?,?态物质的目?域年?的?(?常?)。目?主要选?位?年的单?矿物有:?、?子?、?、?和?等。(LA-ICP-MS)技术?大?区可定年矿物的?,为?质作?及成?成矿时限?全新的技术手?。?1 Reiners,P.W.,Brandon,M.T.Using thermochronology to un
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31、 Oligocene history of crustalshortening within the Hoh Xil Basin and implications for the uplifthistory of the northern Tibetan PlateauJ.Tectonics,2016,4(35):862-895.Apatite Fission Track?ating Method and Its ApplicationQi Yi(Sino-Zijin resources Limited,Beijing,100012,China)Abstract:the apatite fis
32、sion track has been widely used in the geological field to record the cooling process of shallowsurfaces due to its low annealing temperature(60?120?).By summarizing previous researches,this article introduc-es the experimental principle of apatite fission track,the processing and interpretation of
33、experimental data,and focuseson the application of this method in geological evolution processes,including the process of ore deposit exhumation,thegeological evolution of orogenic belts,the basin evolution,the paleogeomorphology and the age of fault activity.Al-though this method is one of the most
34、 effective methods for studying the low-temperature thermal history information ofgeological bodies,there are still shortcomings in the dating process,such as the easily influenced by human factors,theunsuited measuring for low U or young geological bodies,and the longer experimental period.Therefore,in order tomore accurately constrain the evolution process of geological bodies,multiple technical means still need to be combined.Key words:Low-temperature thermochronology;Apatite fission track;Geological applications151