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李曙光院士論文選集(卷一):變質(zhì)同位素年代學(xué)及華北-華南陸塊碰撞過程

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李曙光院士論文選集(卷一):變質(zhì)同位素年代學(xué)及華北-華南陸塊碰撞過程 版權(quán)信息

  • ISBN:9787030685896
  • 條形碼:9787030685896 ; 978-7-03-068589-6
  • 裝幀:一般膠版紙
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李曙光院士論文選集(卷一):變質(zhì)同位素年代學(xué)及華北-華南陸塊碰撞過程 內(nèi)容簡介

本卷有選擇地匯集了李曙光研究團(tuán)隊1987~2018年在變質(zhì)同位素年代學(xué)和秦嶺-大別-蘇魯造山帶的各種變質(zhì)巖(綠片巖、藍(lán)片巖、斜長角閃巖、麻粒巖、榴輝巖和花崗片麻巖等高壓-超高壓變質(zhì)巖)的同位素年代學(xué)和地球化學(xué)方面的主要學(xué)術(shù)論文。本卷匯集的論文涉及影響變質(zhì)巖同位素定年的各種因素,應(yīng)用同位素年代學(xué)和地球化學(xué)揭示華北和華南陸塊的拼合過程,測定其碰撞時代,探討陸塊碰撞時發(fā)生的陸殼深俯沖導(dǎo)致的超高壓變質(zhì)巖的折返過程與機(jī)制和流體活動導(dǎo)致的微量元素(Nb/Ta)分異等許多重要科學(xué)問題。這些論文有很高的引用率,在靠前超高壓變質(zhì)巖年代學(xué)與地球化學(xué)研究領(lǐng)域有較大影響,并在2008年獲安徽省科學(xué)技術(shù)獎一等獎,在2010年獲國家自然科學(xué)獎二等獎。
    本文集所收集論文源自多種學(xué)術(shù)期刊,各源刊格式標(biāo)準(zhǔn)可能不統(tǒng)一,本著尊重歷史、忠于原文的精神,所用物理量單位、符號、圖例、參考文獻(xiàn)等盡量保留了原文風(fēng)貌。

李曙光院士論文選集(卷一):變質(zhì)同位素年代學(xué)及華北-華南陸塊碰撞過程 目錄

目錄
前言
**部分變質(zhì)同位素年代學(xué)
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
河南中部登封群全巖Sm-Nd 同位素年齡及其構(gòu)造意義 13
Excess argon in phengite from eclogite: evidence from dating of eclogite minerals by Sm-Nd, Rb-Sr and 40Ar/39Ar methods 16
大別山-蘇魯?shù)伢w超高壓變質(zhì)年代學(xué)——Ⅰ Sm-Nd 同位素體系 22
大別山-蘇魯?shù)伢w超高壓變質(zhì)年代學(xué)——Ⅱ 鋯石U-Pb 同位素體系 30
構(gòu)造剪切與變質(zhì)角閃石中過剩Ar 的引入:北秦嶺丹鳳群斜長角閃巖的Sm-Nd 、Rb-Sr 和40Ar/39Ar 測年證據(jù) 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
大別山北部榴輝巖和英云閃長質(zhì)片麻巖的鋯石U-Pb 年齡及多期變質(zhì)增生 53
青島仰口榴輝巖的Nd 同位素不平衡及二次多硅白云母Rb-Sr 年齡 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
大別山金河橋榴輝巖礦物O-Nd-Pb 同位素體系及其對擴(kuò)散速率的制約 83
大別造山帶超高壓變質(zhì)巖和鎂鐵質(zhì)巖漿巖鋯石U-Pb 年代學(xué)的TIMS 和SIMS 法定年結(jié)果比較 90
青龍山榴輝巖高壓變質(zhì)新生鋯石SHRIMP U-Pb 定年、微量元素及礦物包裹體研究 97
超高壓變質(zhì)巖的放射性同位素體系及年代學(xué)方法 105
變質(zhì)巖同位素年代學(xué):Rb-Sr 和Sm-Nd 體系 121
Modification of the Sm-Nd isotopic system in garnet induced by retrogressive fluids 131
第二部分華北和華南陸塊碰撞時代及拼合過程的同位素年代學(xué)和地球化學(xué)研究
中國華北、華南陸塊碰撞時代的釤-釹同位素年齡證據(jù) 151
大別山北翼大別群中C 型榴輝巖的Sm-Nd 同位素年齡及其構(gòu)造意義 157
大別山南麓含柯石英榴輝巖的Sm-Nd 同位素年齡 160
膠南榴輝巖的形成時代及成因——Sr、Nd 同位素地球化學(xué)及年代學(xué)證據(jù) 163
中國中部藍(lán)片巖的形成時代 167
青島榴輝巖及膠南群片麻巖的鋯石U-Pb 年齡——膠南群中晉寧期巖漿事件的證據(jù) 172
華北與揚(yáng)子陸塊的碰撞時代及過程 176
Collision of the North China and Yangtse Blocks and formation of coesite-bearing eclogites: timing and processes 178
北秦嶺拉圾廟蘇長輝長巖的痕量元素和Sr,Nd 同位素地球化學(xué) 198
蛇綠巖生成構(gòu)造環(huán)境的Ba-Th-Nb-La 判別圖 208
εNd-La/Nb、Ba/Nb 、Nb/Th 圖對地幔不均一性研究的意義——島弧火山巖分類及EMII 端元的分解 215
北秦嶺黑河丹鳳群島弧火山巖建造的發(fā)現(xiàn)及其構(gòu)造意義 222
南秦嶺勉略構(gòu)造帶黑溝峽變質(zhì)火山巖的年代學(xué)和地球化學(xué)——古生代洋盆及其閉合時代的證據(jù) 229
A middle Silurian-early Devonian magmatic arc in the Qinling Mountains of Central China: a discussion 236
北秦嶺西峽二郎坪群枕狀熔巖中一個巖枕的年代學(xué)和地球化學(xué)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
大別山北部榴輝巖的地球化學(xué)特征和Sr、Nd 同位素組成及其大地構(gòu)造意義 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
南秦嶺勉略構(gòu)造帶三岔子古巖漿弧的地球化學(xué)特征及形成時代 330
大別造山帶惠蘭山鎂鐵質(zhì)麻粒巖Sm-Nd 和鋯石SHRIMP U-Pb 年代學(xué)及鋯石微量元素地球化學(xué) 340
西秦嶺關(guān)子鎮(zhèn)蛇綠混雜巖的地球化學(xué)和鋯石SHRIMP U-Pb 年齡 349
青海東昆南構(gòu)造帶苦海輝長巖和德爾尼閃長巖的鋯石SHRIMP U-Pb 年齡及痕量元素地球化學(xué)——對“祁-柴-昆”晚新元古代-早奧陶世多島洋南界的制約 358
第三部分超高壓變質(zhì)巖的冷卻史、退變質(zhì)P-T-t軌跡與多階段差異折返機(jī)制
大別山石馬地區(qū)榴輝巖P-T-t軌跡及其構(gòu)造意義 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
大別山雙河超高壓變質(zhì)巖及北部片麻巖的U-Pb 同位素組成——對超高壓巖石折返機(jī)制的制約 403
Geochemical constraints of the eclogite and granulite facies metamorphism as recognized in the Raobazhai complex from North Dabie Shan, China 410
大別山北部鎂鐵-超鎂鐵質(zhì)巖帶中榴輝巖的分布與變質(zhì)溫壓條件 430
大別山北部榴輝巖的大地構(gòu)造屬性及冷卻史 443
Geochemistry and geochronology of eclogites from the northern Dabie Mountains, Central China 448
大別山超高壓變質(zhì)巖的冷卻史及折返機(jī)制 464
大別山下地殼巖石及其深俯沖 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
俯沖陸殼內(nèi)部的拆離和超高壓巖石的多板片差異折返:以大別-蘇魯造山帶為例 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
第四部分大陸俯沖過程中的流體及Nb-Ta分異大陸俯沖過程中的流體 593
Making continental crust th
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李曙光院士論文選集(卷一):變質(zhì)同位素年代學(xué)及華北-華南陸塊碰撞過程 節(jié)選

**部分變質(zhì)同位素年代學(xué) 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

李曙光院士論文選集(卷一):變質(zhì)同位素年代學(xué)及華北-華南陸塊碰撞過程 作者簡介

李曙光,中國科學(xué)院院士、地球化學(xué)家,2005年獲何梁何利基金科學(xué)與技術(shù)進(jìn)步獎,2010年獲國家自然科學(xué)獎二等獎。20世紀(jì)80年代以來,在挪威西部、西阿爾卑斯和大別山先后發(fā)現(xiàn)了含柯石英超高壓變質(zhì)巖,揭示了大陸深俯沖的存在。這一發(fā)現(xiàn)在全世界掀起了超高壓變質(zhì)巖的研究熱潮。自1983年以來李曙光長期從事大別山超高壓變質(zhì)同位素年代學(xué)及造山帶化學(xué)地球動力學(xué)研究。他最早通過測定大別山榴輝巖年齡,獲得華北與華南陸塊在三疊紀(jì)碰撞的結(jié)論,并在超高壓變質(zhì)同位素年代學(xué)、冷卻史和折返機(jī)制研究中作出重要貢獻(xiàn)。本論文選集(卷一)有選擇地匯集了李曙光研究團(tuán)隊在變質(zhì)巖同位素年代學(xué)和地球化學(xué)方面的主要學(xué)術(shù)論文,供研究生、教師、科研工作者等參考。

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