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李曙光院士论文选集(卷一):变质同位素年代学及华北-华南陆块碰撞过程 版权信息
- ISBN：9787030685896
- 条形码：9787030685896 ; 978-7-03-068589-6
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李曙光院士论文选集(卷一):变质同位素年代学及华北-华南陆块碰撞过程 内容简介
本卷有选择地汇集了李曙光研究团队1987~2018年在变质同位素年代学和秦岭-大别-苏鲁造山带的各种变质岩（绿片岩、蓝片岩、斜长角闪岩、麻粒岩、榴辉岩和花岗片麻岩等高压-超高压变质岩）的同位素年代学和地球化学方面的主要学术论文。本卷汇集的论文涉及影响变质岩同位素定年的各种因素，应用同位素年代学和地球化学揭示华北和华南陆块的拼合过程，测定其碰撞时代，探讨陆块碰撞时发生的陆壳深俯冲导致的超高压变质岩的折返过程与机制和流体活动导致的微量元素（Nb/Ta）分异等许多重要科学问题。这些论文有很高的引用率，在靠前超高压变质岩年代学与地球化学研究领域有较大影响，并在2008年获安徽省科学技术奖一等奖，在2010年获国家自然科学奖二等奖。
本文集所收集论文源自多种学术期刊，各源刊格式标准可能不统一，本着尊重历史、忠于原文的精神，所用物理量单位、符号、图例、参考文献等尽量保留了原文风貌。
李曙光院士论文选集(卷一):变质同位素年代学及华北-华南陆块碰撞过程 目录
目录
前言
**部分变质同位素年代学
Rb-Sr and Sm-Nd isotopic dating of an Early Precambrian spilite-keratophyre sequence in the Wutaishan area， North China: preliminary evidence for Nd-isotopic homogenization in the mafic and felsic lavas during low-grade metamorphism 3
河南中部登封群全岩Sm-Nd 同位素年龄及其构造意义 13
Excess argon in phengite from eclogite: evidence from dating of eclogite minerals by Sm-Nd， Rb-Sr and 40Ar/39Ar methods 16
大别山-苏鲁地体超高压变质年代学——Ⅰ Sm-Nd 同位素体系 22
大别山-苏鲁地体超高压变质年代学——Ⅱ 锆石U-Pb 同位素体系 30
构造剪切与变质角闪石中过剩Ar 的引入：北秦岭丹凤群斜长角闪岩的Sm-Nd 、Rb-Sr 和40Ar/39Ar 测年证据 36
Sm-Nd， Rb-Sr and 40Ar/39Ar isotopic systematics of the ultrahigh-pressure metamorphic rocks in the Dabie-Sulu Belt， Central China: a retrospective view 42
大别山北部榴辉岩和英云闪长质片麻岩的锆石U-Pb 年龄及多期变质增生 53
青岛仰口榴辉岩的Nd 同位素不平衡及二次多硅白云母Rb-Sr 年龄 58
Effects of retrograde-zoning of garnet on Sm-Nd isotopic dating of eclogite and oxygen isotopic disequilibrium between eclogitic minerals 63
A high precision U-Pb age of metamorphic rutile in coesite-bearing eclogite from the Dabie Mountains in Central China: a new constraint on the cooling history 72
大别山金河桥榴辉岩矿物O-Nd-Pb 同位素体系及其对扩散速率的制约 83
大别造山带超高压变质岩和镁铁质岩浆岩锆石U-Pb 年代学的TIMS 和SIMS 法定年结果比较 90
青龙山榴辉岩高压变质新生锆石SHRIMP U-Pb 定年、微量元素及矿物包裹体研究 97
超高压变质岩的放射性同位素体系及年代学方法 105
变质岩同位素年代学：Rb-Sr 和Sm-Nd 体系 121
Modification of the Sm-Nd isotopic system in garnet induced by retrogressive fluids 131
第二部分华北和华南陆块碰撞时代及拼合过程的同位素年代学和地球化学研究
中国华北、华南陆块碰撞时代的钐-钕同位素年龄证据 151
大别山北翼大别群中C 型榴辉岩的Sm-Nd 同位素年龄及其构造意义 157
大别山南麓含柯石英榴辉岩的Sm-Nd 同位素年龄 160
胶南榴辉岩的形成时代及成因——Sr、Nd 同位素地球化学及年代学证据 163
中国中部蓝片岩的形成时代 167
青岛榴辉岩及胶南群片麻岩的锆石U-Pb 年龄——胶南群中晋宁期岩浆事件的证据 172
华北与扬子陆块的碰撞时代及过程 176
Collision of the North China and Yangtse Blocks and formation of coesite-bearing eclogites: timing and processes 178
北秦岭拉圾庙苏长辉长岩的痕量元素和Sr，Nd 同位素地球化学 198
蛇绿岩生成构造环境的Ba-Th-Nb-La 判别图 208
εNd-La/Nb、Ba/Nb 、Nb/Th 图对地幔不均一性研究的意义——岛弧火山岩分类及EMII 端元的分解 215
北秦岭黑河丹凤群岛弧火山岩建造的发现及其构造意义 222
南秦岭勉略构造带黑沟峡变质火山岩的年代学和地球化学——古生代洋盆及其闭合时代的证据 229
A middle Silurian-early Devonian magmatic arc in the Qinling Mountains of Central China: a discussion 236
北秦岭西峡二郎坪群枕状熔岩中一个岩枕的年代学和地球化学研究 239
Sm-Nd and Rb-Sr ages and geochemistry of volcanics from the Dingyuan Formation in Dabie Mountains， Central China: evidence to the Paleozoic magmatic arc 247
Accretional history of the North and South China Blocks， and the microcontinents between them: implications for dispersion of Gondwanaland 254
大别山北部榴辉岩的地球化学特征和Sr、Nd 同位素组成及其大地构造意义 258
Geochemical and geochronological constraints on the suture location between the North and South China Blocks in the Dabie orogen， Central China 266
Carboniferous and Triassic eclogites in the western Dabie Mountains， east-central China: evidence for protracted convergence of the North and South China Blocks 289
Mid-paleozoic collision in the North Qinling: Sm-Nd， Rb-Sr and 40Ar/39Ar ages and their tectonic implications 309
Timing of synorogenic granitoids in the South Qinling， Central China: constraints on the evolution of the Qinling-Dabie orogenic belt 318
南秦岭勉略构造带三岔子古岩浆弧的地球化学特征及形成时代 330
大别造山带惠兰山镁铁质麻粒岩Sm-Nd 和锆石SHRIMP U-Pb 年代学及锆石微量元素地球化学 340
西秦岭关子镇蛇绿混杂岩的地球化学和锆石SHRIMP U-Pb 年龄 349
青海东昆南构造带苦海辉长岩和德尔尼闪长岩的锆石SHRIMP U-Pb 年龄及痕量元素地球化学——对“祁-柴-昆”晚新元古代-早奥陶世多岛洋南界的制约 358
第三部分超高压变质岩的冷却史、退变质P-T-t轨迹与多阶段差异折返机制
大别山石马地区榴辉岩P-T-t轨迹及其构造意义 369
P-T-t path for coesite-bearing peridotite-eclogite assciation in the Bixiling， Dabie Mountains 378
Sm-Nd and Rb-Sr isotopic chronology and cooling history of ultrahigh-pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains， Central China 381
大别山双河超高压变质岩及北部片麻岩的U-Pb 同位素组成——对超高压岩石折返机制的制约 403
Geochemical constraints of the eclogite and granulite facies metamorphism as recognized in the Raobazhai complex from North Dabie Shan， China 410
大别山北部镁铁-超镁铁质岩带中榴辉岩的分布与变质温压条件 430
大别山北部榴辉岩的大地构造属性及冷却史 443
Geochemistry and geochronology of eclogites from the northern Dabie Mountains， Central China 448
大别山超高压变质岩的冷却史及折返机制 464
大别山下地壳岩石及其深俯冲 472
Zircon SHRIMP U-Pb dating for gneisses in northern Dabie high T/Pmetamorphic zone， Central China: implications for decoupling within subducted continental crust 480
Ultrahigh-pressure eclogite transformed from mafic granulite in the Dabie orogen， east-central China 497
俯冲陆壳内部的拆离和超高压岩石的多板片差异折返：以大别-苏鲁造山带为例 513
Common Pb of UHP metamorphic rocks from the CCSD project (100–5000 m) suggesting decoupling between the slices within subducting continental crust and multiple thin slab exhumation 525
A granulite record of multistage metamorphism and REE behavior in the Dabie orogen: constraints from zircon and rock-forming minerals 540
Common Pb isotope mapping of UHP metamorphic zones in Dabie orogen， Central China: implication for Pb isotopic structure of subducted continental crust 568
第四部分大陆俯冲过程中的流体及Nb-Ta分异大陆俯冲过程中的流体 593
Making continental crust th
前言
**部分变质同位素年代学
Rb-Sr and Sm-Nd isotopic dating of an Early Precambrian spilite-keratophyre sequence in the Wutaishan area， North China: preliminary evidence for Nd-isotopic homogenization in the mafic and felsic lavas during low-grade metamorphism 3
河南中部登封群全岩Sm-Nd 同位素年龄及其构造意义 13
Excess argon in phengite from eclogite: evidence from dating of eclogite minerals by Sm-Nd， Rb-Sr and 40Ar/39Ar methods 16
大别山-苏鲁地体超高压变质年代学——Ⅰ Sm-Nd 同位素体系 22
大别山-苏鲁地体超高压变质年代学——Ⅱ 锆石U-Pb 同位素体系 30
构造剪切与变质角闪石中过剩Ar 的引入：北秦岭丹凤群斜长角闪岩的Sm-Nd 、Rb-Sr 和40Ar/39Ar 测年证据 36
Sm-Nd， Rb-Sr and 40Ar/39Ar isotopic systematics of the ultrahigh-pressure metamorphic rocks in the Dabie-Sulu Belt， Central China: a retrospective view 42
大别山北部榴辉岩和英云闪长质片麻岩的锆石U-Pb 年龄及多期变质增生 53
青岛仰口榴辉岩的Nd 同位素不平衡及二次多硅白云母Rb-Sr 年龄 58
Effects of retrograde-zoning of garnet on Sm-Nd isotopic dating of eclogite and oxygen isotopic disequilibrium between eclogitic minerals 63
A high precision U-Pb age of metamorphic rutile in coesite-bearing eclogite from the Dabie Mountains in Central China: a new constraint on the cooling history 72
大别山金河桥榴辉岩矿物O-Nd-Pb 同位素体系及其对扩散速率的制约 83
大别造山带超高压变质岩和镁铁质岩浆岩锆石U-Pb 年代学的TIMS 和SIMS 法定年结果比较 90
青龙山榴辉岩高压变质新生锆石SHRIMP U-Pb 定年、微量元素及矿物包裹体研究 97
超高压变质岩的放射性同位素体系及年代学方法 105
变质岩同位素年代学：Rb-Sr 和Sm-Nd 体系 121
Modification of the Sm-Nd isotopic system in garnet induced by retrogressive fluids 131
第二部分华北和华南陆块碰撞时代及拼合过程的同位素年代学和地球化学研究
中国华北、华南陆块碰撞时代的钐-钕同位素年龄证据 151
大别山北翼大别群中C 型榴辉岩的Sm-Nd 同位素年龄及其构造意义 157
大别山南麓含柯石英榴辉岩的Sm-Nd 同位素年龄 160
胶南榴辉岩的形成时代及成因——Sr、Nd 同位素地球化学及年代学证据 163
中国中部蓝片岩的形成时代 167
青岛榴辉岩及胶南群片麻岩的锆石U-Pb 年龄——胶南群中晋宁期岩浆事件的证据 172
华北与扬子陆块的碰撞时代及过程 176
Collision of the North China and Yangtse Blocks and formation of coesite-bearing eclogites: timing and processes 178
北秦岭拉圾庙苏长辉长岩的痕量元素和Sr，Nd 同位素地球化学 198
蛇绿岩生成构造环境的Ba-Th-Nb-La 判别图 208
εNd-La/Nb、Ba/Nb 、Nb/Th 图对地幔不均一性研究的意义——岛弧火山岩分类及EMII 端元的分解 215
北秦岭黑河丹凤群岛弧火山岩建造的发现及其构造意义 222
南秦岭勉略构造带黑沟峡变质火山岩的年代学和地球化学——古生代洋盆及其闭合时代的证据 229
A middle Silurian-early Devonian magmatic arc in the Qinling Mountains of Central China: a discussion 236
北秦岭西峡二郎坪群枕状熔岩中一个岩枕的年代学和地球化学研究 239
Sm-Nd and Rb-Sr ages and geochemistry of volcanics from the Dingyuan Formation in Dabie Mountains， Central China: evidence to the Paleozoic magmatic arc 247
Accretional history of the North and South China Blocks， and the microcontinents between them: implications for dispersion of Gondwanaland 254
大别山北部榴辉岩的地球化学特征和Sr、Nd 同位素组成及其大地构造意义 258
Geochemical and geochronological constraints on the suture location between the North and South China Blocks in the Dabie orogen， Central China 266
Carboniferous and Triassic eclogites in the western Dabie Mountains， east-central China: evidence for protracted convergence of the North and South China Blocks 289
Mid-paleozoic collision in the North Qinling: Sm-Nd， Rb-Sr and 40Ar/39Ar ages and their tectonic implications 309
Timing of synorogenic granitoids in the South Qinling， Central China: constraints on the evolution of the Qinling-Dabie orogenic belt 318
南秦岭勉略构造带三岔子古岩浆弧的地球化学特征及形成时代 330
大别造山带惠兰山镁铁质麻粒岩Sm-Nd 和锆石SHRIMP U-Pb 年代学及锆石微量元素地球化学 340
西秦岭关子镇蛇绿混杂岩的地球化学和锆石SHRIMP U-Pb 年龄 349
青海东昆南构造带苦海辉长岩和德尔尼闪长岩的锆石SHRIMP U-Pb 年龄及痕量元素地球化学——对“祁-柴-昆”晚新元古代-早奥陶世多岛洋南界的制约 358
第三部分超高压变质岩的冷却史、退变质P-T-t轨迹与多阶段差异折返机制
大别山石马地区榴辉岩P-T-t轨迹及其构造意义 369
P-T-t path for coesite-bearing peridotite-eclogite assciation in the Bixiling， Dabie Mountains 378
Sm-Nd and Rb-Sr isotopic chronology and cooling history of ultrahigh-pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains， Central China 381
大别山双河超高压变质岩及北部片麻岩的U-Pb 同位素组成——对超高压岩石折返机制的制约 403
Geochemical constraints of the eclogite and granulite facies metamorphism as recognized in the Raobazhai complex from North Dabie Shan， China 410
大别山北部镁铁-超镁铁质岩带中榴辉岩的分布与变质温压条件 430
大别山北部榴辉岩的大地构造属性及冷却史 443
Geochemistry and geochronology of eclogites from the northern Dabie Mountains， Central China 448
大别山超高压变质岩的冷却史及折返机制 464
大别山下地壳岩石及其深俯冲 472
Zircon SHRIMP U-Pb dating for gneisses in northern Dabie high T/Pmetamorphic zone， Central China: implications for decoupling within subducted continental crust 480
Ultrahigh-pressure eclogite transformed from mafic granulite in the Dabie orogen， east-central China 497
俯冲陆壳内部的拆离和超高压岩石的多板片差异折返：以大别-苏鲁造山带为例 513
Common Pb of UHP metamorphic rocks from the CCSD project (100–5000 m) suggesting decoupling between the slices within subducting continental crust and multiple thin slab exhumation 525
A granulite record of multistage metamorphism and REE behavior in the Dabie orogen: constraints from zircon and rock-forming minerals 540
Common Pb isotope mapping of UHP metamorphic zones in Dabie orogen， Central China: implication for Pb isotopic structure of subducted continental crust 568
第四部分大陆俯冲过程中的流体及Nb-Ta分异大陆俯冲过程中的流体 593
Making continental crust th
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李曙光院士论文选集(卷一):变质同位素年代学及华北-华南陆块碰撞过程 节选
**部分变质同位素年代学 Rb-Sr and Sm-Nd isotopic dating of an Early Precambrian spilite-keratophyre sequence in the Wutaishan area， North China: preliminary evidence for Nd-isotopic homogenization in the mafic and felsic lavas during low-grade metamorphism. Shuguang Li1， S.R. Hart2 and Tieshan Wu3 1. Department of Earth and Space Sciences， University of Science and Technology of China， Hefei 230026， Anhui， China 2. Center of Geochemistry， Department of Earth， Atmosphere and Planetary Sciences， Massachusetts Institute of Technology， Cambridge， MA 02139， U.S.A. 3. Regional Geological Surveying Team of Shanxi Province， Yuci 030600， Shanxi， China Abstract The spilite-keratophyre sequence in the Wutaishan area， North China has been dated by zircon from the quartz-keratophyre， and a volcanic crystallization age of 2522 Ma (Liu Dunyi et al.， 1985) was obtained. This volcanic rock sequence experienced a low-grade metamorphism of greenschist facies during 1800–2000 Ma. However， combined Sm-Nd whole rock data from the volcanic rock sequence， if interpreted in terms of an isochron， gives a younger age of 2250 ± 182 Ma. If separately calculated， Sm-Nd isochrons for quartz-keratophyre and spilite yield two consistently younger ages of 1977 ± 385 Ma and 1981 ± 178 Ma. These Sm-Nd isochron ages are consistent with a Rb-Sr age of 1871 ± 98 Ma， and with the time of regional greenschist facies metamorphism. Consequently， we interpret the 2250 Ma alignment on the Sm-Nd diagram as an errorchron. The two Sm-Nd metamorphic ages suggest that partial homogenization of Nd isotopic composition in water-rich spilite-keratophyric meta-volcanics can be achieved during low-grade metamorphism as a result of REE mobility. Using the εNd values at the time of metamorphism， the average 147Sm/144Nd ratios of the spilite and the quartz-keratophyre， initial εNd values of 2.6 ± 3.5 and 3.0 ± 6.1， respectively are estimated at the time of volcanic eruption (2522 Ma). Similar positive initial εNd values for the spilites and quartz-keratophyres suggest that they might have been derived from the same depleted mantle source， or that the quartz-keratophyres are derived from a short-lived mafic source. 1 Introduction To successfully apply the Sm-Nd isotopic dating method to define eruption ages of Precambrian metavolcanic rock sequences， two basic assumptions need to be satisfied， i.e.， (1) samples must have the same initial 143Nd/144Nd ratios and (2) rare earth elements (REE) are immobile during metamorphism. However， these two conditions are not always satisfied. Several investigations have demonstrated that volcanic rocks erupted from a single volcano may show significant isotopic variation as a result of the mantle source heterogeneity and/or crustal contamination (Arculus and Johnson， 1981; Staudigel et al.， 1984; Zindler et al.， 1984). Furthermore， mobility of REE may be significant during low-grade metamorphism and hydrothermal alteration of basic lavas (Hellman and Henderson， 1977; Hellman et al.， 1979; Wood et al.， 1976; Nystrom， 1984; Windrim et al.， 1984; Vocke et al.， 1987). Several studies have already shown that the Sm-Nd whole rock dating method does not always yield accurate ages for Archaean greenstone belts (Hegner et al.， 1984; Cattel et al.， 1984; Chauvel et al.， 1985). It is also known that under some circumstances Sm-Nd whole-rock isochrons can be reset during high-grade tectonothermal events (McCulloch and Black， 1984; Black and McCulloch， 1987). In this paper， we present Nd and Sr isotopic data for an early Precambrian spilite-keratophyre sequence in the Wutaishan area， Shanxi Province， China to show the effect of the REE mobility during low-grade metamorphism on the Sm-Nd systematics. This is accomplished by comparing results of Sm-Nd， Rb-Sr dates with U-Pb zircon ages. 2 Geological setting and samples Precambrian metamorphic rock complexes are widely distributed in the Wutaishan area which is a part of North China Craton (Fig. 1). The metamorphic complexes can be broadly subdivided into three stratigraphic units， namely the Fuping， Wutai and Hutuo Groups from bottom to top. All of the three groups have been dated by U-Pb zircon method (Liu et al.， 1985) (Fig. 2). Fig. 1 Simplified sketch map of the Wutaishan area showing Precambrian rock units and sample localities. 1 = Paleozoic strata. 2 = Hutuo Group. 3 = Upper Wutai Group. 4 = Middle Wutai Group. 5 = Lower Wutai Group. 6 = Fuping Group. 7 = K-granite. 8 = Na-granite. 9 = Mesozoic granite. 10 = unconformity. 11 = sample no. The Fuping Group consists predominantly of mafic granulites， paragneisses， quartzites and amphibolites， which have experienced high to medium grade metamorphism. A minimum age of 2560 ± 9 Ma for the Fuping Group is defined by a zircon age of the Lanzhishan Granite which intrudes the Fuping Group (Liu et al.， 1985). A maximum age of 2800 Ma is defined by a zircon date from granu
李曙光院士论文选集(卷一):变质同位素年代学及华北-华南陆块碰撞过程 作者简介
李曙光，中国科学院院士、地球化学家，2005年获何梁何利基金科学与技术进步奖，2010年获国家自然科学奖二等奖。20世纪80年代以来，在挪威西部、西阿尔卑斯和大别山先后发现了含柯石英超高压变质岩，揭示了大陆深俯冲的存在。这一发现在全世界掀起了超高压变质岩的研究热潮。自1983年以来李曙光长期从事大别山超高压变质同位素年代学及造山带化学地球动力学研究。他最早通过测定大别山榴辉岩年龄，获得华北与华南陆块在三叠纪碰撞的结论，并在超高压变质同位素年代学、冷却史和折返机制研究中作出重要贡献。本论文选集（卷一）有选择地汇集了李曙光研究团队在变质岩同位素年代学和地球化学方面的主要学术论文，供研究生、教师、科研工作者等参考。
