滇中地区早前寒武纪地质研究新进展
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摘要
滇中地区中元古界"昆阳群"的地层层序是长期争议的重大基础地质问题,在一定程度上制约了地质调查工作的部署及勘查效果,也制约着滇中地区前寒武纪地质研究水平的进一步提高。云南省地质调查院在进行《云南省区域地质志》(第二版、修编)、1:5万二街等4幅区域调查子项目工作中,在前人工作成果的基础上,通过大量的野外地质调查及锆石同位素年代学研究,在滇中地区早前寒武纪地层层序及时代、重大地质事件记录、早期生命与环境协同演化等方面取得了一系列的新发现,具有重要意义。
Stratigraphic sequence of Mesoproterozoic"Kunyang Group"in central Yunnan Province is an important basic geological problem of long controversy, and such a situation has restricted deployment of geological surveying work and exploration effect and also constrained further development of early Pre-Cambrian geological research in central Yunnan Province. Based on previous work," Regional Geology of Yunnan"(The second edition, revised) and"1:50000 Erjie Sheet Regional Geological Survey", the authors put forward a series of significant new ideas concerning stratigraphic sequence, epoch of early Pre-Cambrian, records of important geological events, and co-evolution of early life and environment, by means of field substantial geological survey and zircon isotope dating. On the basis of these new ideas, the authors suggest some new tasks about early Pre-Cambrian geological research in central Yunnan Province.
Stratigraphic sequence of Mesoproterozoic"Kunyang Group"in central Yunnan Province is an important basic geological problem of long controversy, and such a situation has restricted deployment of geological surveying work and exploration effect and also constrained further development of early Pre-Cambrian geological research in central Yunnan Province. Based on previous work," Regional Geology of Yunnan"(The second edition, revised) and"1:50000 Erjie Sheet Regional Geological Survey", the authors put forward a series of significant new ideas concerning stratigraphic sequence, epoch of early Pre-Cambrian, records of important geological events, and co-evolution of early life and environment, by means of field substantial geological survey and zircon isotope dating. On the basis of these new ideas, the authors suggest some new tasks about early Pre-Cambrian geological research in central Yunnan Province.
引文
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[24]关平,王颖嘉.全球古元古代碳同位素正异常的数据分析与成因评述[J].北京大学学报(自然科学版),2009,45(5):906-914.
[25]Kazumi Ozaki,Eiichi Tajika.Widespread euxinia in the aftermath of the Lomagundi event:insights from a modeling study of ocean biogeochemical dynamics[J].Geophysical Research Abstracts,2015(17):2015-7929.
[26]周邦国,王生伟,孙晓明,等.云南东川望厂组熔结凝灰岩锆石SHRIMP U-Pb年龄及其意义[J].地质论评,2012,58(2):359-368.
[27]朱华平,范文玉,周邦国,等.论东川地区前震旦系地层层序:来自锆石SHRIMP及LA-ICP-MS测年的证据[J].高校地质学报,2011,17(3):452-461.
[28]赵秀鲲,单卫国.武定“迤纳厂组”的层位归属及其滑覆-变质[J].云南地质,1993,12(1):60-66.
[29]施林道,姜福芝,卢海亚,等.云南易门铜矿成因新见及其找矿意义[J].矿床地质,1988,(2):14-22.
[30]高建国.易门狮山铜矿床地球化学特征与成矿关系[J].云南地质,1996,(3):257-265.
[31]张立生.论凤山铜矿床的再生成因[J].矿产与地质,1992,(6):431-439.
[32]高建国.易门铜矿三家厂矿田成矿元素特征分析[J].昆明理工大学学报(理工版),1991,(4):10-22.
[33]张立生.云南易门狮山铜矿床的喷气沉积成因[J].中国地质科学院南京地质矿产研究所所刊,1989,(4):52-71.
[34]叶现韬,朱维光,钟宏,等.云南武定迤纳厂Fe-Cu-REE矿床的锆石U-Pb和黄铜矿Re-Os年代学、稀土元素地球化学及其地质意义[J].岩石学报,2013,29(4):1167-1186.
[35]Mao H K,Hu Q Y,Yang L X,et al.When water meets iron at Earth’s core-mantle boundary[J].National Science Review,2017,4:870-878.
(1)成都地质调查中心.1:5万马树、甘沟等4幅.2014.
(2)云南省地质矿产勘查开发局.1:5万青龙厂幅.1994.
(3)云南省地质调查院.1:5万二街、易门等4幅.2018.
(4)云南省地质局.1:5万禄丰县幅.1996.
(5)云南省地质局.1:5万洼垤街幅.1992.
(6)云南省地质局.1:20万武定幅.1969.
(7)云南省地质矿产局.1:5万大麦地幅.1991.
(8)云南省地质矿产局.1:5万武定县幅.1992.
[2]张远志,张定辉,刘世荣,等.云南省岩石地层[M].武汉:中国地质大学出版社,1996:8-21.
[3]花友仁.对东川铜矿区地层划分和区域构造的探讨[J].地质论评,1959,4(2):155-162.
[4]吴懋德,段锦荪,陈良忠.云南昆阳群地质[M].昆明:云南科技出版社,1990:1-224.
[5]莫向云.云南东川昆阳群地层[M].昆明:云南科技出版社,2013:1-119.
[6]孙家骢.论昆阳群的划分及对比[J].昆明工学院学报,1983,1(1):1-16.
[7]李希勋,吴懋德,段锦荪.昆阳群的层序及顶底问题[J].地质论评,1984,30(5):399-408.
[8]尹福光,孙志明,白建科.东川、滇中地区中元古代地层格架[J].地层学杂志,2011,35(1):49-54.
[9]李天福.东川矿区“小溜口组”地层特征与因民组的接触关系[J].云南地质,1993,4(1):1-11.
[10]陆松年,郝国杰,相振群.前寒武纪重大地质事件[J].地学前缘,2016,23(6):140-155.
[11]张旗,钱青,翟明国,等.Sanukite(赞岐岩)的地球化学特征、成因及其地球动力学意义[J].岩石矿物学杂志,2005,24(2):117-125.
[12]夏林圻.超大陆构造、地幔动力学和岩浆-成矿响应[J].西北地质,2013,46(3):1-45.
[13]Abderrazak E A,Stefan B,et al.Large colonial organism with coordinated growth in oxygenated environments 2.1Gyr ago[J].Nature,2010,1(466):100-104.
[14]Tang H S,Chen Y J,Santosh M,et al.C-O isotope geochemistry of the Dashiqiao magnesite belt,North China Craton:implications for the Great Oxidation Event and ore genesis[J].Geological Journal,2013,48(5):467-483.
[15]McDonald B,Camille A P.Is the Lomagundi Event present on the Rae craton?A case study from the Murmac Bay Group[J].Can.J.Earth Sci.,2016,53:457-465.
[16]Maheshwari A,Sial A N,et al.A positiveδ13C carb anomaly in Paleoproterozoic carbonates of the Aravalli Craton,Western India:support for a global isotopic excursion[J].Journal of Asian Earth Sciences,2002,21:59-67.
[17]Mastera S,Bekkerb A,Hofmannc A.A review of the stratigraphy and geological setting of the Palaeoproterozoic Magondi Supergroup,Zimbabwe-Type locality for the Lomagundi carbon isotope excursion[J].Precambrian Research,2010,182:254-273.
[18]Lebeau O,Busigny V,Chaduteau C,et al.Organic matter removal for the analysis of carbon and oxygenisotope compositions of siderite[J].Chemical Geology,2014,372(5):54-61.
[19]Bekker A,Karhu J A,Kaufman A J.Carbon isotope record for the onset of the Lomagundi carbon isotope excursion in the Great Lakes area,North America[J].Precambrian Research,2006,148(1)145-180.
[20]Anil Maheshwari,Alcides N.Sial,et al.Global nature of the Paleoproterozoic Lomagundi carbon isotope excursion:A review of occurrences in Brazil,India,and Uruguay[J].Precambrian Research,2010,182:274-299.
[21]Chakrabarti G,Shome D,Kumar S,et al.Carbon and oxygen isotopic variations in stromatolitic dolomites of Palaeoproterozoic Vempalle Formation,Cuddapah Basin,India[J].Carbonates&Evaporites,2011,26(2):181-191.
[22]Préat A,Bouton P,Thiéblemont D,et al.Paleoproterozoic highδ13C dolomites from the Lastoursville and Franceville basins(SE Gabon):Stratigraphic and synsedimentary subsidence implications[J].Precambrian Research,2011,189(1):212-228.
[23]Martin A P,Condon D J,Prave A R,et al.A review of tempora constraints for the Palaeoproterozoic large,positive carbonate carbon isotope excursion(the Lomagundi-Jatuli Event)[J].Earth-Science Reviews,2013,127:242-261.
[24]关平,王颖嘉.全球古元古代碳同位素正异常的数据分析与成因评述[J].北京大学学报(自然科学版),2009,45(5):906-914.
[25]Kazumi Ozaki,Eiichi Tajika.Widespread euxinia in the aftermath of the Lomagundi event:insights from a modeling study of ocean biogeochemical dynamics[J].Geophysical Research Abstracts,2015(17):2015-7929.
[26]周邦国,王生伟,孙晓明,等.云南东川望厂组熔结凝灰岩锆石SHRIMP U-Pb年龄及其意义[J].地质论评,2012,58(2):359-368.
[27]朱华平,范文玉,周邦国,等.论东川地区前震旦系地层层序:来自锆石SHRIMP及LA-ICP-MS测年的证据[J].高校地质学报,2011,17(3):452-461.
[28]赵秀鲲,单卫国.武定“迤纳厂组”的层位归属及其滑覆-变质[J].云南地质,1993,12(1):60-66.
[29]施林道,姜福芝,卢海亚,等.云南易门铜矿成因新见及其找矿意义[J].矿床地质,1988,(2):14-22.
[30]高建国.易门狮山铜矿床地球化学特征与成矿关系[J].云南地质,1996,(3):257-265.
[31]张立生.论凤山铜矿床的再生成因[J].矿产与地质,1992,(6):431-439.
[32]高建国.易门铜矿三家厂矿田成矿元素特征分析[J].昆明理工大学学报(理工版),1991,(4):10-22.
[33]张立生.云南易门狮山铜矿床的喷气沉积成因[J].中国地质科学院南京地质矿产研究所所刊,1989,(4):52-71.
[34]叶现韬,朱维光,钟宏,等.云南武定迤纳厂Fe-Cu-REE矿床的锆石U-Pb和黄铜矿Re-Os年代学、稀土元素地球化学及其地质意义[J].岩石学报,2013,29(4):1167-1186.
[35]Mao H K,Hu Q Y,Yang L X,et al.When water meets iron at Earth’s core-mantle boundary[J].National Science Review,2017,4:870-878.
(1)成都地质调查中心.1:5万马树、甘沟等4幅.2014.
(2)云南省地质矿产勘查开发局.1:5万青龙厂幅.1994.
(3)云南省地质调查院.1:5万二街、易门等4幅.2018.
(4)云南省地质局.1:5万禄丰县幅.1996.
(5)云南省地质局.1:5万洼垤街幅.1992.
(6)云南省地质局.1:20万武定幅.1969.
(7)云南省地质矿产局.1:5万大麦地幅.1991.
(8)云南省地质矿产局.1:5万武定县幅.1992.
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