LA-ICP-MS Zircon U-Pb Chronology and Geochemistry of Cretaceous Granites from Fogang Batholith in the Conghua Area

YE Sheng-Ming|LI Hong-Wei|HE Xiang|LI Rui|HE Bin

doi:10.3969/j.issn.2097-0013.2021.03.002

2021 Vol. 37, No. 3

Article Contents

Article navigation > South China Geology > 2021 > 37(3): 265-279

Next Article Previous Article

YE Sheng-Ming|LI Hong-Wei|HE Xiang|LI Rui|HE Bin. 2021. LA-ICP-MS Zircon U-Pb Chronology and Geochemistry of Cretaceous Granites from Fogang Batholith in the Conghua Area. South China Geology, 37(3): 265-279. doi: 10.3969/j.issn.2097-0013.2021.03.002

Citation:

YE Sheng-Ming|LI Hong-Wei|HE Xiang|LI Rui|HE Bin. 2021. LA-ICP-MS Zircon U-Pb Chronology and Geochemistry of Cretaceous Granites from Fogang Batholith in the Conghua Area. South China Geology, 37(3): 265-279. doi: 10.3969/j.issn.2097-0013.2021.03.002

LA-ICP-MS Zircon U-Pb Chronology and Geochemistry of Cretaceous Granites from Fogang Batholith in the Conghua Area

YE Sheng-Ming|LI Hong-Wei|HE Xiang|LI Rui|HE Bin^1,2

1.East China University of Technology, Nanchang 330000, Jiangxi；
2.Guangdong Geological Survey, Guangzhou 510080,Guangdong

Received Date: 27 March 2021

Revised Date: 24 May 2021

Abstract

Abstract

The LA-ICP-MS zircon U-Pb datingdetermined a ~145 Ma Cretaceous granites in the Jurassic Fogang batholith of the Conghua area, Central Guangdong Province. The geochemical research of the granite shows that its SiO₂ content is 71.9%~77.72% (average value is 74.89%), Al₂O₃ content is 12.17%-14.42% (average 13.24%), A/CNK is 1.31~1.49 (average value is 1.4), ALK (The total alkali index) is 7.92~9.15 (average value is 8.5), which indicatesit’s a peraluminous high-potassium calc-alkaline series granite. Their total rare earth elements (ΣREE) range from 128.8 to 393.8 ppm, with negative Eu anomaly,δ_Eu value from 0.1 to 0.4, and LREE/HREEE value from 2.2 to 13.3. It is enriched in Rb, U, La, Nd, Sm and Lu, and strongly depleted in Ba, Nb, Sr, P and Ti. Elemental geochemistry shows that it belongs to a highly differentiated I-type granite, and might be formed by partial melting of ancient crustal sand-argillaceous source rocks caused by mantle-derived magma at high temperature. Combined withthe regional geological data, the Cretaceous granite in theConghua area may be formed under the continental margin arc tectonic background of the subduction of the ancient Pacific plate to the Eurasian plate.
- LA-ICP-MS zircon U-Pb age /
- geochemistry /
- Early Cretaceous granite /
- the Fogang batholith /
- the Conghua area of central Guangdong province

FullText(HTML)

References

[1]

包志伟，赵振华．佛冈铝质A型花岗岩的地球化学及其形成环境初探[J]．地质地球化学，2003，31(1):52-61.[br][2]肖振宇，汪礼明．广东从化石岭碱性杂岩的岩石学特征及其地质意义[J]．高校地质学报，1998，4(2):133-138.[br][3]庄文明，陈绍前，黄友义．佛冈复式岩体地质地球化学特征及其成岩源岩[J]．广东地质，2000，15(3):1-12.[br][4]地质部南岭项目花岗岩专题组．南岭花岗岩地质及其成因和成矿作用[M]．北京：地质出版社，1989：1-474.[br][5]陈小明，王汝成，刘昌实，胡欢，张文兰，高剑锋．广东从化佛冈(主体)黑云母花岗岩定年和成因[J]．高校地质学报，2002，8(3):293-307.[br][6]徐夕生，鲁为敏，贺振宇．佛冈花岗岩基及乌石闪长岩-角闪辉长岩体的形成年龄和起源 [J]．中国科学(D辑)，2007，37(1):27-38.[br][7]何翔，叶升明，李锐．佛冈岩体南缘晚侏罗世二长花岗岩地球化学特征及构造环境分析[J]．西部探矿工程，2018，(8):151-153.[br][8]郭敏，黄孔文．粤北佛冈岩体中粒斑状花岗岩地球化学、年代学及地质意义[J]．华南地质与矿产，2019，35(2):158-170. [br][9]邱检生，胡建，王孝磊，蒋少涌，王汝成，徐夕生．广东河源白石冈岩体:一个高分异的I型花岗岩[J]．地质学报，2005，79(4):503-514.[br][10]Liu Y S, Gao S, Hu Z C, Zong K Q, Wang D B. Continental and oceanic crust recycling-induced melt-peridotite interactions in the Trans-China Orogen: U-Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths [J]. Journal of Petrology, 2010, 51(1&2):537-571.[br][11]Liu Y S, Hu Z C, Zong K Q, Gao S, Xu J, Chen H H. Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MA [J]. Chinese Science Bulletin, 2010, 55(15):1535-1546.[br][12]Ludwing K R. User,s manual for Isoplot 3.00: Ageochronological toolkit for Microsoft Excel [M]. Berkeley Geochronological Center, Special Publication, 2003: 41-73.[br][13]Belousova EA, Griffin WL, O’Reilly S Y, Fisher N I. Igneous zircon：Trace element composition and relationship to host rock type[J]. Contributions to Mineralogy and Petrogy, 2002, 143(5): 602-622.[br][14]Middlemost E A K. Iron oxidation ratios, norms and the classification of volcanic rocks [J]. Chemical Geology, 1989, 77( 1):19-26.[br][15]Maniar P D, Piccoli P M. Tectonic discrimination of granitoids [J]. Geological Society of America Bulletin, 1989, 101( 5):635-643.[br][16]Rickwood P C. Boundary lines within petrologic diagram which use oxides of major and minor elements [J]. Lithos, 1989, 22( 4):247-263.[br][17]Vinogradov A P. Average content of chemical elements in the chief types of igneous rocks of the crust of the Earth [J]. Geokhimia, 1962, (7):555-571. (in Russian with English abstract)[br][18]Sun S S, Mcdonough W F. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[J]. Magmatism in the Ocean Basins, Geological Society Special Publication, 1989, 42: 313-345.[br][19]Taylor S R, Maclennan S M. The continental crust: Its composition and evolution[J]. Oxford: Blackwell, 1985: 1-312.[br][20]Stille P, Steiger R H. Hf isotope systematic in granitods from the central and Southern Alps [J]. Contributions to Mineralogy and Petrology, 1991, 107(3): 273-278.[br][21]吴福元，李献华，郑永飞，高山． Lu-Hf同位素体系及其岩石学应用[J]．岩石学报，2007,23(2):185-220.[br][22]Chappell B W, White A J R. I- and S-Type Granites in the Lachlan Fold Belt [J]．Transactions of the Royal Society of Edinburgh: Earth and Environmental Science, 1992, 83:1-26.[br][23]Whalen J B, Currie K L, Chappell B W. A-type granites: Geochemical characteristics, discrimination and petrogenesis[J]. Contributions to Mineralogy and Petrology, 1987, 95: 407-419.[br][24]Sylvester P J. Post-collisional strongly pealuminuous granites[J]. Lithos, 1998, 45(1-4):29-44.[br][25]陈璟元，杨进辉．佛冈高分异I型花岗岩的成因:来自Nb-Ta-Zr-Hf等元素的制约[J]．岩石学报，2015,31(3):846-854.[br][26]Scherer E E, Gameron K L, Blichert-Toft J. Lu-Hf garnet geochronology: Closure temperature relative to the Sm-Nd system and the effects of trace mineral inclusions[J]. Geochimica et Cosmochimica Acta, 2000, 64(19):3413-3432.[br][27]杨德彬，许文良，王清海，裴福萍，纪伟强．蚌埠隆起区中生代花岗岩的岩石成因:锆石Hf同位素的证据[J]．岩石学报,2007,23(2):381-392.[br][28]Chen A. Mirror-image thrusting in the South China orogenic belt: tectonic evidence from western Fujian, Southeastern China[J]. Tectonophysics, 2001,305: 497-519.[br][29]舒良树，周新民，邓平，余心起．南岭构造带的基本地质特征[J]地质论评，2006,52（2）:251-265.[br][30]邢光福，陈荣，杨祝良，周宇章, 李龙明,姜杨,陈志洪．东南沿海晚白垩世火山岩浆活动特征及其构造背景[J]．岩石学报，2009,25(1)：77-91.[br][31]许文良，王枫，裴福萍，孟恩, 唐杰,徐美君,王伟．中国东北中生代构造体制与区域成矿背景：来自中生代火山岩组合时空变化的制约[J].岩石学报，2013,29(2):339-353.[br][32]华仁民，张文兰，陈培荣，翟伟,李光来．初论华南加里东花岗岩与大规模成矿作用的关系[J]．高校地质学报，2013,19(1):1-11.[br][33]苏扣林，丁兴，黄永贵，郑小战，吴凯，胡永斌．粤中早白垩世亚髻山正长质杂岩体的成分分异及岩石成因[J].岩石学报，2015，31(3):829-845.[br]34]苏扣林．广东良口亚髻山霞石正长岩地球化学特征及大地构造意义[J]．中山大学学报（自然科学版），2018，57(1):110-120.[br][35]邱检生，肖娥，胡建，徐夕生，蒋少涌，李真．福建北东沿海高分异I型花岗岩的成因：锆石U-Pb年代学、地球化学和Nd-Hf同位素制约[J]．岩石学报，2008，24(11):2468-2483.[br][36]Liegeois，J P. Some words on the post-collisional magmatism[J]. Lithos, 1998, 45:15-19.[br][37]Liu J T,Yang L Q,Lu L. Pulang reduced porphyry copper deposit in the Zhongdian area, Southwest China: Constrains by the mineral assemblages and the ore-forming fluid compositions[J]. Acta petrologica Sinica, 2013, 29(11):3914-3924.[br]

Google Scholar

Relative Articles

Cited by

Supplements

Proportional views