南阿尔金尤努斯萨依退变榴辉岩的发现及地质意义

谭俊; 宫相宽; 李阔; 木热地力·买合苏提

doi:10.13568/j.cnki.651094.651316.2022.02.20.0002

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南阿尔金尤努斯萨依退变榴辉岩的发现及地质意义

更新时间：2026-01-21

- 南阿尔金尤努斯萨依退变榴辉岩的发现及地质意义
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 39, Issue 6, Pages: 736-746(2022)
- 作者机构：
  
  新疆中亚造山带大陆动力学与成矿预测自治区重点实验室新疆大学地质与矿业工程学院
- 作者简介：
- 基金信息：
- DOI：10.13568/j.cnki.651094.651316.2022.02.20.0002
  CLC： P588.3
- Published：2022
- 稿件说明：
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[1]谭俊,宫相宽,李阔,等.南阿尔金尤努斯萨依退变榴辉岩的发现及地质意义[J].新疆大学学报(自然科学版)(中英文),2022,39(06):736-746.
[1]谭俊,宫相宽,李阔,等.南阿尔金尤努斯萨依退变榴辉岩的发现及地质意义[J].新疆大学学报(自然科学版)(中英文),2022,39(06):736-746. DOI： 10.13568/j.cnki.651094.651316.2022.02.20.0002.

DOI：10.13568/j.cnki.651094.651316.2022.02.20.0002.

摘要

南阿尔金高压-超高压变质带基性麻粒岩的变质演化历史是地学界长期广泛关注的问题之一．研究发现，南阿尔金尤努斯萨依地区出露的石榴子石辉石岩保留了榴辉岩相变质矿物组合：石榴子石+绿辉石+金红石，曾经历榴辉岩相变质作用，后期叠加了麻粒岩相和角闪岩相两期变质作用改造，依据LA-ICP-MS锆石原位微区U-Pb定年和微量元素分析，获得两期变质年龄，分别为(495±4) Ma和(448±5) Ma，两者分别显示了榴辉岩相和麻粒岩相变质锆石稀土元素组成特征．而且，在～500 Ma锆石微区发现石榴子石、绿辉石包裹体，～450 Ma微区出现单斜辉石，指示该岩石榴辉岩相变质时代为(495±4) Ma，在(448±5) Ma经历麻粒岩相变质叠加．结合已有研究，该岩石是陆壳岩石在～500 Ma发生俯冲-深俯冲后在～450 Ma经历折返和退变质的产物，两期变质年龄代表了同一地质事件的不同阶段．南阿尔金地区呈透镜状产出的基性麻粒岩至少部分经历过榴辉岩相变质．

Abstract

The metamorphic evolution history of mafic granulites in the South Altyn HP-UHP metamorphic belt has long been widely concerned. In this study

the garnet pyroxenite exposed in the Younusisayi area of South Altyn Tagh retained eclogite-facies metamorphic minerals: Grt+Omp+Ru

and it had experienced eclogitefacies metamorphism. The granulite-facies and amphibolite-facies metamorphic minerals were also found in the rock. Based on LA-ICP-MS zircon U-Pb dating and trace element analysis

two metamorphic ages of (495±4) Ma and (448±5) Ma were obtained. They showed the REE patterns similar to eclogite-facies and granulite-facies metamorphic zircons

respectively. In addition

garnet and pyroxene inclusions were found in ～500 Ma zircon microzones

and clinopyroxene appeared in ～450 Ma microzones

indicating that the rock underwent eclogite-facies and granulite-facies metamorphis at (495±4) Ma and (448±5) Ma

respectively. Combined with previous research results

our study show that the rock experienced crustal subduction and eclogite-facies metamorphism at ～500 Ma

and then exhumation and retrograde metamorphism happened at ～450 Ma. The two metamorphic ages represent different stages of the same geological event. At least part of the mafic granulites in South Altyn area had experienced eclogite-facies metamorphism.

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references

ZHENG Y F. A perspective view on ultrahigh-pressure metamorphism and continental collision in the Dabie-Sulu Orogenic Belt[J].Chinese Science Bulletin, 2008, 53(20):3081-3104.

ZHENG Y F. Metamorphic chemical geodynamics in continental subduction zones[J]. Chemical Geology, 2012, 328(1):5-48.

LIU L, LIAO X Y, WANG Y W, et al. Early Paleozoic tectonic evolution of the North Qinling Orogenic Belt in Central China:insights on continental deep subduction and multiphase exhumation[J]. Earth-Science Reviews, 2016, 159(1):58-81.

张立飞,王杨.俯冲带高压-超高压变质地体的抬升折返机制:问题和探讨[J].中国科学:地球科学, 2020, 50(12):1727-1747.

杨经绥,许志琴,宋述光,等.青海都兰榴辉岩的发现及对中国中央造山带内高压-超高压变质带研究的意义[J].地质学报, 2000,74(2):156-168.

刘良,车自成,王焰,等.阿尔金高压变质岩带的特征及其构造意义[J].岩石学报, 1999, 15(1):57-64.

张建新,许志琴,杨经绥,等.阿尔金西段榴辉岩岩石学、地球化学和同位素年代学研究及其构造意义[J].地质学报, 2001, 75(2):186-197.

LIU L, WANG C, CAO Y T, et al. Geochronology of multi-stage metamorphic events:constraints on episodic zircon growth from the UHP eclogite in the South Altyn, NW China[J]. Lithos, 2012, 136/137/138/139:10-26.

LIU L, ZHANG J F, CAO Y T, et al. Evidence of former stishovite in UHP eclogite from the South Altyn Tagh, western China[J].Earth and Planetary Science Letters, 2018, 484:353-362.

刘良,康磊,曹玉亭,等.南阿尔金早古生代俯冲碰撞过程中的花岗质岩浆作用[J].中国科学, 2015, 45(8):1126-1137.

LIU L, SUN Y, LUO J H, et al. Ultra-high pressure metamorphism of granitic gneiss in the Yinggelisayi area, Altun Mountains,NW China[J]. Science in China(Series D), 2004, 47(4):338-346.

LIU L, CHEN D L, ZHANG A D, et al. Ultra-high pressure(>7 GPa)ganeissic K-feldspar(-bearing)garnet clinopyroxenite in the Altyn Tagh, NW China:evidence from clinopyroxene exsolution in garnet[J]. Science in China(Series D), 2005, 48(7):1000-1010.

LIU L, WANG J X, CHEN D L, et al. Progress and controversy in the study of HP-UHP metamorphic terranes in West and Middle Central China Orogen[J]. Journal of Earth Science, 2010, 21(5):581-597.

ZHANG J X, MATTINSON C G, MENG F C, et al. An Early Palaeozoic HP/HT granulite-garnet peridotite association in the south Altyn Tagh, NW China:P-T history and U-Pb geochronology[J]. Journal of Metamorphic Geology, 2005, 23(7):491-510.

ZHANG J X, MATTINSON C G, YU S Y, et al. Combined rutile-zircon thermometry and U-Pb geochronology:new constraints on Early Paleozoic HP/UHT granulite in the south Altyn Tagh, north Tibet, China[J]. Lithos, 2014, 200/201:241-257.

曹玉亭,刘良,王超,等.阿尔金淡水泉早古生代泥质高压麻粒岩及其P-T演化轨迹[J].岩石学报, 2009, 25(9):2260-2270.

曹玉亭,刘良,王超,等.南阿尔金木纳布拉克地区高压泥质麻粒岩的确定及其地质意义[J].岩石学报, 2013, 29(5):1727-1739.

WANG C, LIU L, YANG W Q, et al. Provenance and ages of the Altyn Complex in Altyn Tagh:implications for the early Neoproterozoic evolution of northwestern China[J]. Precambrian Research, 2013, 230:193-208.

张建新,杨经绥,许志琴,等.阿尔金榴辉岩中超高压变质作用证据[J].科学通报, 2002, 47(3):231-234.

GAI Y S, LIU L, WANG C, et al. Discovery of coesite in eclogite from Keqike Jianggalesayi:new evidence for ultrahigh-pressure metamorphism in South Altyn Tagh, Northwestern China[J]. Science Bulletin, 2017, 62(15):1048-1051.

王立社,李智明,仇银江,等.阿尔金环形山榴辉岩岩石地球化学及地质意义[J].新疆地质, 2015, 33(2):143-150.

王立社,李智明,仇银江,等.阿尔金奇克山东斜长角闪岩地球化学、年代学及其成因意义[J].地质学报, 2016, 90(4):739-751.

马拓,刘良,盖永升,等.南阿尔金尤努斯萨依花岗质高压麻粒岩的发现及其地质意义[J].岩石学报, 2018, 34(12):3643-3657.

LIU L, WANG C, CHEN D L, et al. Petrology and geochronology of HP-UHP rocks from the south Altyn Tagh, Northwestern China[J]. Journal of Asian Earth Sciences, 2009, 35(3/4):232-244.

于胜尧,张建新,李三忠,等.大陆碰撞过程中的巴罗式变质作用及原地深熔作用:以南阿尔金为例[J].岩石学报, 2016, 32(12):3703-3714.

车自成,刘良,刘洪福,等.阿尔金山地区高压变质泥质岩石的发现及其产出环境[J].科学通报, 1995, 40(14):1298-1300.

许志琴,杨经绥,张建新,等.阿尔金断裂两侧构造单元的对比及岩石圈剪切机制[J].地质学报, 1999, 73(3):193-205.

YIN A, RUMELHART E P, BUTLER R, et al. Tectonic history of the Altyn Tagh fault system in northern Tibet inferred from Cenozoic sedimentation[J]. Geological Society of America Bulletin, 2002, 114(10):1257-1295.

康磊.南阿尔金高压-超高压变质带早古生代多期花岗质岩浆作用及其地质意义[D].西安:西北大学, 2014.

李向民,马中平,孙吉明,等.阿尔金断裂南缘约马克其镁铁-超镁铁岩的性质和年代学研究[J].岩石学报, 2009, 25(4):862-872.

杨文强,刘良,丁海波,等.南阿尔金迪木那里克花岗岩地球化学、锆石U-Pb年代学与Hf同位素特征及其构造地质意义[J].岩石学报, 2012, 28(12):4139-4150.

朱小辉,曹玉亭,刘良,等.阿尔金淡水泉花岗质高压麻粒岩P-T演化及年代学研究[J].岩石学报, 2014, 30(12):3717-3728.

盖永升.南阿尔金高压-超高压变质岩石差异折返及其深熔作用[D].西安:西北大学, 2018.

刘良,车自成,王焰,等.阿尔金茫崖地区早古生代蛇绿岩的Sm-Nd等时线年龄证据[J].科学通报, 1998, 43(8):880-883.

刘良,车自成,罗金海,等.阿尔金山西段榴辉岩的确定及其地质意义[J].科学通报, 1996, 41(16):1485-1488.

LIU L, SUN Y, XIAO P X, et al. Discovery of ultrahigh-pressure magnesite-bearing garnet lherzolite(>3.8 GPa)in the Altyn Tagh, Northwest China[J]. Chinese Science Bulletin, 2002, 47(11):881-886.

MORIMOTO N. Nomenclature of pyroxenes[J]. Mineralogy and Petrology, 1988, 14(5):198-221.

LIU L, ZHANG A D, CHEN D L, et al. Implications based on LA-ICP-MS zircon U-Pb ages of eclogite and its country rock from Jianggalesayi area, Altyn Tagh, China[J]. Earth Science Frontiers, 2007, 14(1):98-107.

LIU F L, LIOU J G. Zircon as the best mineral for P-T-time history of UHP metamorphism:a review on mineral inclusions and U-Pb SHRIMP ages of zircons from the Dabie-Sulu UHP rocks[J]. Journal of Asian Earth Sciences, 2011, 40(1):1-39.

RUBATTO D. Zircon trace element geochemistry:partitioning with garnet and the link between U-Pb ages and metamorphism[J].Chemical Geology, 2002, 184(1/2):123-138.

SUN S S, MCDONOUGH W F. Chemical and isotopic systematics of oceanic basalts:implications for mantle composition and processes[J]. Geological Society Special Publications, 1989, 42(1):313-345.

郑永飞,赵子福,陈伊翔.大陆俯冲隧道过程:大陆碰撞过程中的板块界面相互作用[J].科学通报, 2013, 58(23):2233-2239.

郭晶,李云帅,张建新.南阿尔金巴什瓦克基性麻粒岩的变质演化P-T-t轨迹[J].地质学报, 2020, 94(9):2698-2711.

郭晶,李云帅,于胜尧,等.南阿尔金巴什瓦克榴辉岩的变质演化:对南阿尔金超高压变质作用的启示[J].地质学报, 2021, 95(12):3691-3704.

孙吉明,马中平,唐卓,等.阿尔金南缘鱼目泉岩浆混合花岗岩LA-ICP-MS测年与构造意义[J].地质学报, 2012, 86(2):247-257.

KANG L, LIU L, WANG C, et al. Geochemistry and zircon U-Pb dating of Changshagou adakite from the South Altyn UHPM terrane:evidence of the partial melting of the lower crust[J]. Acta Geologica Sinica(English Edition), 2014, 88(5):1454-1465.

曹玉亭,刘良,王超,等.阿尔金南缘塔特勒克布拉克花岗岩的地球化学特征、锆石U-Pb定年及Hf同位素组成[J].岩石学报,2010, 26(11):3259-3271.

康磊,刘良,曹玉亭,等.阿尔金南缘塔特勒克布拉克复式花岗质岩体东段片麻状花岗岩的地球化学特征、锆石U-Pb定年及其地质意义[J].岩石学报, 2013, 29(9):3039-3048.

王超,刘良,张安达,等.阿尔金造山带南缘岩浆混合作用:玉苏普阿勒克塔格岩体岩石学和地球化学证据[J].岩石学报, 2008,24(12):2809-2819.

吴才来,郜源红,雷敏,等.南阿尔金茫崖地区花岗岩类锆石SHRIMP U-Pb定年、Lu-Hf同位素特征及岩石成因[J].岩石学报,2014, 30(8):2297-2323.

吴才来,雷敏,张昕,等.南阿尔金花岗岩锆石Lu-Hf同位素特征及岩石成因[J].中国地质, 2016, 43(6):1853-1883.

徐楠,吴才来,雷敏,等.茫崖二长花岗岩锆石U-Pb年代学、Lu-Hf同位素特征及岩石成因[J].地球科学, 2018, 43(S2):60-80.

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