|Table of Contents|

Geochronology and Geochemistry Characteristics of Magmatic Intrusive Rocks in Huangtun Area of Luzong Basin, Anhui, China(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2020年第05期
Page:
584-602
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Geochronology and Geochemistry Characteristics of Magmatic Intrusive Rocks in Huangtun Area of Luzong Basin, Anhui, China
Author(s):
ZHANG Jing-yi12 ZHANG Shu123* ZHANG Zan-zan12 CAI Xiao-bing12 YUE Yun-hua12 WEI Guo-hui12
1. Geological Survey of Anhui Province, Hefei 230001, Anhui, China; 2. Anhui Institute of Geological Sciences, Hefei 230001, Anhui, China; 3. College of Civil Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
Keywords:
geochemistry magmatic rock zircon U-Pb age evolution mechanism petrogenesis intrusive rock Luzong Basin Anhui
PACS:
P581; P595; P597
DOI:
10.19814/j.jese.2020.05030
Abstract:
Luzong ore district located at northern margin of Yangtze block is one of important iron-copper polymetallic ore districts in the middle-lower Yangtze river metallogenic belt. The porphyry-type iron and copper deposits are the dominant types in Luzong ore district. Recently, several medium-sized lead-zinc-copper-gold deposits, which are genetically related with regional magmatic intrusive rocks, are discovered in Huangtun area, the northern margin of Luzong Basin, Anhui. Petrological observations, LA-ICP-MS zircon U-Pb dating and geochemical analysis were carried out for intrusive rocks in Huangtun area with the aims to determine the temporal framework of magmatic intrusions and to reveal the magmatic evolution process. Huangtun dioritic porphyrite, Yueshan monzonitic and Jiaochong syenitic intrusive rocks form at 135.0-134.4, 132.7-132.1 and 131.5-129.6 Ma, respectively, which belong to the products of intrusive magmatism at the end of Zhuanqiao volcanic cycle in Luzong Basin. The intrusive rocks in Huangtun area are characterized by high SiO2(mean content is 61.67%), Al2O3(16.95%), alkaline(10.25%)and low TiO2(0.66%), enriched in large ion lithophile elements such as Rb, K as well as light rare earth elements, and depleted in high strength field elements such as Nb and Ta. Geochemical features suggest that the intrusive rocks belong to typical shoshonite series. Combined with Sr-Nd isotopic compositions, the primary magma is probably derived from enriched lithospheric mantle of Yangtze block. Geochemical variations reveal that fractional crystallization controls the evolution process of the magma, during which the fractionation of hornblende dominates the differentiation from diorite to monzonite, and plagioclase dominates the fractional crystallization from monzonite to syenite.

References:

[1] 常印佛,刘湘培,吴言昌.长江中下游铜铁成矿带[M].北京:地质出版社,1991.
CHANG Yin-fo,LIU Xiang-pei,WU Yan-chang.The Copper-iron Belt of the Lower and Middle Reaches of the Changjiang River[M].Beijing:Geological Publishing House,1991.
[2] 翟裕生,姚书振,林新多,等.长江中下游地区铁铜(金)成矿规律[M].北京:地质出版社,1992.
ZHAI Yu-sheng,YAO Shu-zhen,LIN Xin-duo,et al.Fe-Cu-Au Metallogenic Regularity of the Middle-lower Changjiang River[M].Beijing:Geological Publishing House,1992.
[3] ZHOU T F,WANG S W,FAN Y,et al.A Review of the Intracontinental Porphyry Deposits in the Middle-lower Yangtze River Valley Metallogenic Belt,Eastern China[J].Ore Geology Reviews,2015,65:433-456.
[4] 周涛发,范 裕,王世伟,等.长江中下游成矿带成矿规律和成矿模式[J].岩石学报,2017,33(11):3353-3372.
ZHOU Tao-fa,FAN Yu,WANG Shi-wei,et al.Metallogenic Regularity and Metallogenic Model of the Middle-lower Yangtze River Valley Metallogenic Belt[J].Acta Petrologica Sinica,2017,33(11):3353-3372.
[5] LIU Y N,FAN Y,ZHOU T F,et al.Geochemical Characteristics of Pyrite in the Dabaozhuang Deposit in the Middle-lower Yangtze River Metallogenic Belt,Eastern China[J].Ore Geology Reviews,2020,124:103662.
[6] LIU Y N,FAN Y,ZHOU T F,et al.In-situ LA-ICP-MS Trace Element Analysis of Magnetite from Mesozoic Iron Oxide Apatite(IOA)Deposits in the Luzong Volcanic Basin,Eastern China[J].Journal of Asian Earth Sciences,2018,166:233-246.
[7] 赵新福,曾丽平,廖 旺,等.长江中下游成矿带玢岩铁矿研究新进展及对矿床成因的启示[J].地学前缘,2020,27(2):197-217.
ZHAO Xin-fu,ZENG Li-ping,LIAO Wang,et al.An Overview of Recent Advances in Porphyrite Iron(Iron Oxide-apatite,IOA)Deposits in the Middle-lower Yangtze River Valley Metallogenic Belt and Its Implication for Ore Genesis[J].Earth Science Frontiers,2020,27(2):197-217.
[8] 葛宁洁,李 平,黄宪安,等.安徽庐江岳山银铅锌矿的成矿物质来源及物理化学条件探讨[J].中国科学技术大学学报,1989,19(3):365-374.
GE Ning-jie,LI Ping,HUANG Xian-an,et al.Research on Physical Chemistry Condition and Materials Source of Mineralization of Ag-Pb-Zn Ore Deposit in Yueshan[J].Journal of China University of Science and Techonolgy,1989,19(3):365-374.
[9] 张 矿,许强平.安徽铜盘山—岳山地区铅锌矿地质特征及找矿方向[J].安徽地质,2019,29(2):94-97.
ZHANG Kuang,XU Qiang-ping.Geological Features and Prospecting Direction of Lead and Zinc Deposits in the Tongpanshan-Yueshan Area,Anhui Province[J].Geology of Anhui,2019,29(2):94-97.
[10] 蔡晓兵,汪 晶,岳云华.安徽省庐江县朱岗铅锌矿床地质特征及找矿方向[J].安徽地质,2015,25(3):161-166.
CAI Xiao-bing,WANG Jing,YUE Yun-hua.Geological Features of the Zhugang Pb-Zn Ore Deposit and Ore-prospecting Direction in Lujiang County,Anhui Pro-vince[J].Geology of Anhui,2015,25(3):161-166.
[11] WANG B,ZHOU T F,FAN Y,et al.Breccia,Hydrothermal Alteration and Structural Geology of the Huangtun Porphyry Au-Cu Deposit in the Middle-lower Yangtze Metallogenic Belt,Eastern China[J].Ore Geology Reviews,2020,120:103414.
[12] 张燕群.安徽西湾铅锌矿床地球化学特征及矿床成因探讨[D].南昌:东华理工大学,2019.
ZHANG Yan-qun.Research on the Geochemical Characteristics and Genesis of the Xiwan Lead-zinc Deposit in Anhui Province[D].Nanchang:East China University of Techonogy,2019.
[13] 周涛发,范 裕,袁 峰,等.安徽庐枞(庐江—枞阳)盆地火山岩的年代学及其意义[J].中国科学:D辑,地球科学,2008,38(11):1342-1353.
ZHOU Tao-fa,FAN Yu,YUAN Feng,et al. Geochronology of the Volcanic Rocks in Lu-Zong Basin and Its Significance[J].Science in China:Series D,Earth Science,2008,38(11):1342-1353.
[14] 周涛发,范 裕,袁 峰,等.庐枞盆地侵入岩的时空格架及其对成矿的制约[J].岩石学报,2010,26(9):2694-2714.
ZHOU Tao-fa,FAN Yu,YUAN Feng,et al.Temporal-spatial Framework of Magmatic Intrusions in Luzong Volcanic Basin in East China and Their Constrain to Mineralization[J].Acta Petrologica Sinica,2010,26(9):2694-2714.
[15] 周涛发,范 裕,袁 峰.长江中下游成矿带成岩成矿作用研究进展[J].岩石学报,2008,24(8):1665-1678.
ZHOU Tao-fa,FAN Yu,YUAN Feng.Advances on Petrogensis and Metallogeny Study of the Mineralization Belt of the Middle and Lower Reaches of the Yangtze River Area[J].Acta Petrologica Sinica,2008,24(8):1665-1678.
[16] 周涛发,范 裕,袁 峰,等.长江中下游成矿带火山岩盆地的成岩成矿作用[J].地质学报,2011,85(5):712-730.
ZHOU Tao-fa,FAN Yu,YUAN Feng,et al.Petrogensis and Metallogeny Study of the Volcanic Basins in the Middle and Lower Yangtze Metallogenic Belt[J].Acta Geologica Sinica,2011,85(5):712-730.
[17] 袁 峰,周涛发,范 裕,等.庐枞盆地中生代火山岩的起源、演化及形成背景[J].岩石学报,2008,24(8):1691-1702.
YUAN Feng,ZHOU Tao-fa,FAN Yu,et al.Source,Evolution and Tectonic Setting of Mesozoic Volcanic Rocks in Luzong Basin,Anhui Province[J].Acta Petrologica Sinica,2008,24(8):1691-1702.
[18] 周涛发,宋明义,范 裕,等.安徽庐枞盆地中巴家滩岩体的年代学研究及其意义[J].岩石学报,2007,23(10):2379-2386.
ZHOU Tao-fa,SONG Ming-yi,FAN Yu,et al.Chronology of the Bajiatan Intrusion in the Luzong Basin,Anhui,and Its Significance[J].Acta Petrologica Sinica,2007,23(10):2379-2386.
[19] TANG M,WANG X L,XU X S,et al.Neoproterozoic Subducted Materials in the Generation of Mesozoic Luzong Volcanic Rocks:Evidence from Apatite Geochemistry and Hf-Nd Isotopic Decoupling[J].Gondwana Research,2012,21(1):266-280.
[20] XUE H M,MA F,CAO G Y.Geochronology and Petrogenesis of Shoshonitic Igneous Rocks,Luzong Volcanic Basin,Middle and Lower Yangtze River Reaches,China[J].Journal of Asian Earth Sciences,2015,110:123-140.
[21] CHEN L,ZHAO Z F,ZHENG Y F.Origin of Andesitic Rocks:Geochemical Constraints from Mesozoic Volcanics in the Luzong Basin,South China[J].Lithos,2014,190/191:220-239.
[22] WANG Q,WYMAN D A,XU J F,et al.Petrogenesis of Cretacous Adakitic and Shoshonitic Igneous Rocks in the Luzong Area,Anhui Province(Eastern China):Implications for Geodynamics and Cu-Au Mineralization[J].Lithos,2006,89(3/4):424-446.
[23] 陈 龙,郑永飞.长江中下游中生代安山质火山岩记录的新元古代大洋板片-地幔相互作用[J].地球科学,2019,44(12):4144-4151.
CHEN Long,ZHENG Yong-fei.Neoproterozoic Ocea-nic Slab-mantle Interaction:Geochemical Evidence from Mesozoic Andesitic Rocks in the Middle and Lower Yangtze Valley[J].Earth Science,2019,44(12):4144-4151.
[24] 任启江,王德滋,徐兆文,等.安徽庐枞火山-构造洼地的形成、演化及成矿[J].地质学报,1993,67(2):131-145.
REN Qi-jiang,WANG De-zi,XU Zhao-wen,et al.Formation and Development of the Mesozoic Lujiang-Zongyang Volcanic-structural Depression in Anhui Province and Their Relation to Mineralization[J].Acta Geologica Sinica,1993,67(2):131-145.
[25] 徐晓春,安昱华,许心悦,等.安徽南陵-宣城地区岩浆岩锆石U-Pb年龄及元素地球化学特征[J].地球科学与环境学报,2020,42(1):15-35.
XU Xiao-chun,AN Yu-hua,XU Xin-yue,et al.Zircon U-Pb Ages and Element Geochemistry Characteristics of Magmatic Rocks in Nanling-Xuancheng Area of Anhui,China[J].Journal of Earth Sciences and Environment,2020,42(1):15-35.
[26] 张赞赞,吴明安,杜建国,等.庐枞矿集区与钨矿床有关的花岗岩的年代学及地球化学特征:岩石成因及其对长江中下游晚白垩世成矿的启示[J].岩石学报,2018,34(1):217-240.
ZHANG Zan-zan,WU Ming-an,DU Jian-guo,et al.Geochronology and Geochemistry of the Tungsten Deposit-related Granites in the Luzong Orefield:Petrogensis and Insights for Late Cretaceous Metallogeny in the Middle and Lower Reaches of Yangtze River Metallogenic Belt[J].Acta Petrologica Sinica,2018,34(1):217-240.
[27] 吕庆田,刘振东,汤井田,等.庐枞矿集区上地壳结构与变形:综合地球物理探测结果[J].地质学报,2014,88(4):447-465.
LV Qing-tian,LIU Zhen-dong,TANG Jing-tian,et al.Upper Crustal Structure and Deformation of Lu-Zong Ore District:Constraints from Integrated Geophysical Data[J].Acta Geologica Sinica,2014,88(4):447-465.
[28] 张 舒,周涛发,吴明安,等.长江中下游成矿带庐枞盆地科学深钻中侵入岩年代学及地球化学研究[J].地质学报,2017,91(7):1483-1505.
ZHANG Shu,ZHOU Tao-fa,WU Ming-an,et al.Geochronology and Petrological Geochemistry of Intrusions in the Lujiang-Zongyang Basin in the Mineralization Belt of the Middle and Lower Reaches of Yangtze River Revealed by Scientific Drilling[J].Acta Geolo-gica Sinica,2017,91(7):1483-1505.
[29] 张 舒,吴明安,赵文广,等.安徽庐江泥河铁矿矿床地球化学特征及其对成因的制约[J].岩石学报,2014,30(5):1382-1396.
ZHANG Shu,WU Ming-an,ZHAO Wen-guang,et al.Geochemistry Characteristics of Nihe Iron Deposit in Lujiang,Anhui Province and Their Constrains to Ore Genesis[J].Acta Petrologica Sinica,2014,30(5):1382-1396.
[30] 宁芜研究项目编写小组.宁芜玢岩铁矿[M].北京:地质出版社,1978.
Group of Ningwu Research Project.The Porphyrite Iron Deposit of Ningwu[M].Beijing:Geological Publishing House,1978.
[31] 覃永军,曾键年,王思源,等.安徽庐枞盆地井边铜(金)矿床成矿特征及控矿地质因素探讨[J].矿床地质,2010,29(5):915-930.
QIN Yong-jun,ZENG Jian-nian,WANG Si-yuan,et al.Metallogenic Characteristics and Ore-control Factors of Jingbian Copper(Gold)Deposit in Luzong Basin,Anhui Province[J].Mineral Deposits,2010,29(5):915-930.
[32] 张乐骏,周涛发,范 裕,等.安徽庐枞盆地井边铜矿床的成矿时代及其找矿指示意义[J].岩石学报,2010,26(9):2729-2738.
ZHANG Le-jun,ZHOU Tao-fa,FAN Yu,et al.Dating of Copper Mineralization in Jingbian Deposit and Its Prospecting Significance in Luzong Basin,Anhui Province[J].Acta Petrologica Sinica,2010,26(9):2729-2738.
[33] 李怀坤,朱士兴,相振群,等.北京延庆高于庄组凝灰岩的锆石U-Pb定年研究及其对华北北部中元古界划分新方案的进一步约束[J].岩石学报,2010,26(7):2131-2140.
LI Huai-kun,ZHU Shi-xing,XIANG Zhen-qun,et al.Zircon U-Pb Dating on Tuff Bed from Gaoyuzhuang Formation in Yanqing,Beijing:Further Constrains on the New Subdivision of the Mesoproterozoic Stratigraphy in the Northern North China Craton[J].Acta Petrologica Sinica,2010,26(7):2131-2140.
[34] LIU Y S,GAO S,HU Z C,et al.Continental and Ocea-nic Crust Recycling-induced Melt-peridotite Interactions in the Trans-North China Orogen:U-Pb Dating,Hf Isotopes and Trace Elements in Zircons of Mantle Xenoliths[J].Journal of Petrology,2010,51(1/2):537-571.
[35] LUDWIG K R.Mathematical-statistical Treatment of Data and Errors for 230Th/U Geochronology[J].Reviews in Mineralogy and Geochemistry,2003,52(1):631-656.
[36] 吴元保,郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报,2004,49(16):1589-1604.
WU Yuan-bao,ZHENG Yong-fei.Genesis of Zircon and Its Constraints on Interpretation of U-Pb Age[J].Chinese Science Bulletin,2004,49(16):1589-1604.
[37] VAVRA G,GEBAUER D,SCHMID R.Multiple Zircon Growth and Recrystallization During Polyphase Late Carboniferous to Triassic Metamorphism in Granulites of the Ivrea Zone(Southern Alps):An Ion Microprobe(SHRIMP)Study[J].Contributions to Mineralogy and Petrology,1996,122:337-358.
[38] WILSON M.Igneous Petrogenesis,A Global Tectonic Approach[M].New York:Oxford University Press,1989.
[39] MIDDLEMOST E A K.Naming Materials in the Magma/Igneous Rock System[J].Earth-science Reviews,1994,37(3/4):215-224.
[40] 李玉松,蔡晓兵,汪 晶,等.安徽庐枞盆地黄寅冲铅锌矿床闪长玢岩锆石U-Pb年龄及其地质意义[J].华东地质,2016,37(1):19-27.
LI Yu-song,CAI Xiao-bing,WANG Jing,et al.Zircon U-Pb Age of Diorite-porphyrites of the Huangyinchong Zn-Pb Deposit in the Luzong Basin,Anhui Province and Its Geological Implications[J].East China Geology,2016,37(1):19-27.
[41] 薛怀民,董树文,马 芳.长江中下游地区庐(江)—枞(阳)和宁(南京)—芜(湖)盆地内与成矿有关潜火山岩体的SHRIMP锆石U-Pb年龄[J].岩石学报,2010,26(9):2653-2664.
XUE Huai-min,DONG Shu-wen,MA Fang.Zircon U-Pb SHRIMP Ages of Sub-volcanic Bodies Related with Porphyritic Fe-deposits in the Luzong and Ningwu Basins,Middle and Lower Yangtze River Reaches,Central China[J].Acta Petrologica Sinica,2010,26(9):2653-2664.
[42] 贾丽琼,徐文艺,吕庆田,等.庐枞盆地砖桥地区科学深钻岩浆岩LA-MC-ICP MS锆石U-Pb年代学和岩石地球化学特征[J].岩石学报,2014,30(4):995-1016.
JIA Li-qiong,XU Wen-yi,LV Qing-tian,et al.LA-MC-ICP MS Zircon U-Pb Geochronology and Petrological Geochemistry of Scientific Drilling in Zhuanqiao,Lujiang-Zongyang Volcanic Basin[J].Acta Pe-trologica Sinica,2014,30(4):995-1016.
[43] 范 裕,邱 宏,周涛发,等.安徽庐枞盆地隐伏侵入岩的LA-ICP MS定年及其构造意义[J].地质学报,2014,88(4):532-546.
FAN Yu,QIU Hong,ZHOU Tao-fa,et al.LA-ICP MS Zircon U-Pb Dating for the Hidden Intrusions in the Lu-Zong Basin and Its Tectonic Significance[J].Acta Geologica Sinica,2014,88(4):532-546.
[44] 于学元,白正华.庐枞地区安粗岩系[J].地球化学,1981,10(1):57-65.
YU Xue-yuan,BAI Zheng-hua.Latitic Series in Lujiang-Zongyang Region[J].Geochimica,1981,10(1):57-65.
[45] 吴利仁,齐进英,王听渡,等.中国东部中生代火山岩[J].地质学报,1982,56(3):223-234.
WU Li-ren,QI Jin-ying,WANG Ting-du,et al.Mesozoic Volcanic Rocks in the Eastern Part of China[J].Acta Geologica Sinica,1982,56(3):223-234.
[46] 杨荣勇,任启江,徐兆文,等.安徽庐枞地区巴家滩火山-侵入岩体的岩浆来源[J].地球化学,1993,22(2):97-106.
YANG Rong-yong,REN Qi-jiang,XU Zhao-wen,et al.The Magma Source of Bajiatan Volcanic-intrusive Complex in the Lujiang-Zongyang Area,Anhui Pro-vince[J].Geochimica,1993,22(2):97-106.
[47] 薛怀民,董树文,马 芳.安徽庐枞火山岩盆地橄榄玄粗岩系的地球化学特征及其对下扬子地区晚中生代岩石圈减薄机制的约束[J].地质学报,2010,84(5):664-681.
XUE Huai-min,DONG Shu-wen,MA Fang.Geochemi-stry of Shoshonitic Volcanic Rocks in the Luzong Basin,Anhui Province(Eastern China):Constraints on Cretaceous Lithopheric Thinning of the Lower Yangtze Region[J].Acta Geologica Sinica,2010,84(5):664-681.
[48] MORRISON G W.Characteristics and Tectonic Setting of the Shoshonite Rock Association[J].Lithos,1980,13(1):97-108.
[49] GILL R C O,APARICIO A,EL AZZOUZI M,et al.Depleted Arc Volcanism in the Alboran Sea and Sho-shonitic Volcanism in Morocco:Geochemical and Isotopic Constraints on Neogene Tectonic Processes[J].Lithos,2004,78(4):363-388.
[50] LIEGEOIS J P,NAVEZ J,HERTOGEN J,et al.Constrasting Origin of Post-collisional High-K Calcalkaline and Shoshonitic Versus Alkaline and Peralkaline Granitoids:The Use of Sliding Normalization[J].Lithos,1998,45(1/2/3/4):1-28.
[51] SUN S S,MCDONOUGH W F.Chemical and Isoto-pic Systematics of Oceanic Basalts:Implications for Mantle Composition and Processes[J].Geological Society,London,Special Publications,1989,42:313-345.
[52] 陈江峰,郭新生,汤加富,等.中国东南地壳增长与Nd同位素模式年龄[J].南京大学学报(自然科学),1999,35(6):649-658.
CHEN Jiang-feng,GUO Xin-sheng,TANG Jia-fu,et al.Nd Isotopic Model Ages:Implications of the Growth of the Continental Crust of Southeastern China[J].Journal of Nanjing University(Natural Sciences),1999,35(6):649-658.
[53] 吴福元,孙德有.中国东部中生代岩浆作用与岩石圈减薄[J].长春科技大学学报,1999,29(4):313-318.
WU Fu-yuan,SUN De-you.The Mesozoic Magmatism and Lithospheric Thinning in Eastern China [J].Journal of Changchun University of Science and Technology,1999,29(4):313-318.
[54] 吴福元,葛文春,孙德有,等.中国东部岩石圈减薄研究中的几个问题[J].地学前缘,2003,10(3):51-60.
WU Fu-yuan,GE Wen-chun,SUN De-you.Discussions on the Lithospheric Thinning in Eastern China[J].Earth Science Frontiers,2003,10(3):51-60.
[55] 邓晋福,莫宣学,赵海玲,等.中国东部岩石圈根/去根作用与大陆“活化”[J].现代地质,1994,8(3):349-356.
DENG Jin-fu,MO Xuan-xue,ZHAO Hai-ling,et al.Lithosphere Root/De-rooting and Activation of the East China Continent[J].Geoscience,1994,8(3):349-356.
[56] LV Q T,YAN J Y,SHI D N,et al.Reflection Seismic Imaging of the Lujiang-Zongyang Volcanic Basin,Yangtze Metallogenic Belt:An Insight into the Crustal Structure and Geodynamics of an Ore District[J].Tectonophysics,2013,606:60-77.

Memo

Memo:
-
Last Update: 2020-09-20