广东龙窝花岗闪长质岩体的年代学、地球化学及岩石成因

邱检生 胡建 McInnes B I A 蒋少涌 徐夕生 Allen C M. 广东龙窝花岗闪长质岩体的年代学、地球化学及岩石成因[J]. 岩石学报, 2004, 20(6): 1363-1374.
引用本文: 邱检生 胡建 McInnes B I A 蒋少涌 徐夕生 Allen C M. 广东龙窝花岗闪长质岩体的年代学、地球化学及岩石成因[J]. 岩石学报, 2004, 20(6): 1363-1374.
QIU JianSheng~. Geochronology, geochemistry and petrogenesis of the Longwo granodioritic pluton in Guangdong province[J]. Acta Petrologica Sinica, 2004, 20(6): 1363-1374.
Citation: QIU JianSheng~. Geochronology, geochemistry and petrogenesis of the Longwo granodioritic pluton in Guangdong province[J]. Acta Petrologica Sinica, 2004, 20(6): 1363-1374.

广东龙窝花岗闪长质岩体的年代学、地球化学及岩石成因

  • 基金项目:

    国家自然科学基金(编号:40132010),国家创新研究群体科学基金(编号:40221301)联合资助

Geochronology, geochemistry and petrogenesis of the Longwo granodioritic pluton in Guangdong province

  • 龙窝岩体是南岭地区燕山早期具幔源组分贡献的花岗岩的典型代表,其主体岩性为花岗闪长岩,岩体中含有深色闪长质包体,锆石ELA-ICP-MS定年结果表明花岗闪长岩的形成年龄为169.1±2.5Ma,属中侏罗世岩浆活动的产物。地球化学特征上,该岩体铝弱过饱和(A/NKC=1.0~1.1),相对贫碱,富钾(K_2O/Na_2O=1.15~1.45),富轻稀土和大离子亲石元素(如Rb、Cs、Th、U),贫高场强元素(如Nb、Ti)。闪长质包体具有与寄主岩相似的矿物组合,但铁镁矿物含量及过渡族元素(V、CR、Co、Ni)丰度相对偏高,二者的主量和微量元素表现出混合成因的演化趋势。寄主岩与包体具有相近的Sr、Nd同位素组成,I_(Sr)和ε_(Nd)(t)值分别为0.70843~0.70995、-6.53~-8.89和0.70797~0.70882、-4.71~-9.24,均表现出壳幔混源花岗岩类岩石的特点。二元混合模拟计算显示寄主岩与包体成岩过程中地幔物质的混入比例分别为32.9%~40.4%和 31.8%~46.4%。通过对岩石产出构造背景及地质地球化学特征的综合分析,表明龙窝花岗闪长岩及其中的闪长质包体是在伸展-引张环境下,由幔源基性岩浆及其诱发的壳源长英质岩浆混合作用的产物。
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  • [1]

    [1]Ballard J R, Palin J M, Williams I S, Campbell I H. 2001. Two ages of porphyry intrusion resolved for the super-giant Chuquicamata copper deposit of northern Chile by ELA-ICP-MS and SHRIMP. Geology,29:383-386

    [2]

    [2]Barbarin B. 1999. A review of the relationships between granitoid types,their origins and their geodynamic environments. Lithos, 46: 605 -626

    [3]

    [3]Bergantz G W. 1989. Underplating and partial melting: implications for melt generation and extraction. Science, 245:1093 -1095

    [4]

    [4]Black P L, Kamo S L, Allen C M, Aleinikoff J N, Davis D W, Korsch R J, Foudoulis C. 2003. TEMORA 1: a new zircon standard for Phanerozoic U-Pb geochronology. Chem. Geol. , 200:155 - 170

    [5]

    [5]Boynton W V. 1984. Geochemistry of the rare earth elements: meteorite studies. In: Henderson P ( ed. ). Rare Earth Elements Geochemistry. Amsterdam, Elservier, 63 - 44

    [6]

    [6]Chappell B W, White A J R. 2001. Two contrasting granite types:25years later. Australia J. Earth Sci. , 48:489 -499

    [7]

    [7]Chen J F, Jahn B M. 1998. Crustal evolution of southeastern China: Nd and Sr isotopic evidence. Tectonophysics, 284:101 - 133

    [8]

    [8]Chen Peirong, Zhang Bangtong, Kong Xinggong, Cai Bicong, Ling Hongfei, Ni Qisheng. 1998. Geochemical characteristics and tectonic implication of Zhaibei A-type granitic intrusives in south Jiangxi Province. Acta Petrologica Sinica, 14 ( 3 ): 289 - 298 ( in Chinese with English abstract)

    [9]

    [9]Chen Peirong, Kong Xinggong, Wang Yinxi, Ni Qisheng, Zhang Bangtong, Ling Hongfei. 1999. Rb-Sr isotopic dating and significance of Early Yanshanian bimodal volcanic-intrusive complex from south Jiangxi Province. Geological Journal of China Universities, 5(4): 379 -383 (in Chinese with English abstract)

    [10]

    [10]Compston W, Williams I S, Kirschvink J L, Zhang Z, Ma G. 1992. Zircon U-Pb ages for the Early Cambrian time-scale. J. Geol. Soc.London, 149:171 - 184

    [11]

    [11]Fan Weiming, Wang Yunjun, Guo Feng, Peng Touping. 2003. Mesozoic mafic magmatism in Hunan-Jiangxi Provinces and the lithospheric extension. Earth Science Frontiers, 10(3): 159 - 169 (in Chinese with English abstract)

    [12]

    [12]Faure G. 1986. Principles of isotope geology. Jones Willey & Sons, 141- 249

    [13]

    [13]Fernandez A N, Barbarin B. 1991. Relative rheology of coeval mafic and felsic magmas: nature of resulting interaction processes and shape and mineral fabrics of mafic microgranular enclaves. In: Dider J &Barbarin B (eds.), Enclaves and Granite Petrology, Amsterdam,Elsevier, 263 - 276

    [14]

    [14]Garsset O, Albarede F. 1994. Hybridization of mingling magmas with different densities. Earth Planet. Sci. Lett. , 121: 327 -332

    [15]

    [15]Gilder S A, Gill J, Coe R S, Zhao X, Liu Z, Wang G, Yuan K, Liu W,Kuang G, Wu H. 1996. Isotopic and paleomagnetic constraints on the Mesozoic tectonic evolution of south China. J. Geophys. Res. ,101:16137 - 16154

    [16]

    [16]Hong Dawei, Guo Wenqi, Li Gejing, Kang Wei, Xu Haiming. 1987. Petrology of the miarolitic granite belt in the southeast coast of Fujian province and their petrogenesis. Beijing: Science and Technology Press of Beijing, 1 -132 (in Chinese with English abstract)

    [17]

    [17]Hong Dawei, Xie Xilin, Zhang Jisheng. 1998. Isotope geochemistry of granitoids in south China and their metallogeny. Resource Geology,48:251 - 263

    [18]

    [18]Huppert H E, Sparks R S J. 1998. The generation of granitic magmas by intrusion of basalt into continental crust. J. Petrol. , 29: 599 - 624

    [19]

    [19]Jahn B M, Condie K C. 1995. Evolution of the Kaapvaal craton as viewed from geochemical and Sm-Nd isotopic analyses of intracratonic pelites. Geochim. Cosmochim. Acta, 59:2239-2258

    [20]

    [20]Langmuir C H, Vocke R D, Hanson G N, Hart S R. 1978. A general mixing equation with application to Icelandic basalt. Earth Planet.Sci. Lett. , 37: 380 - 392

    [21]

    [21]Leake E B, Woolley A R, Arps C E S, et al. 1997. Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. American Mineralogist, 82:1019 -1037

    [22]

    [22]Lesher C E. 1990. Decoupling of chemical and isotopic exchange during magma mixing. Nature, 344:235-237

    [23]

    [23]Maas R, Nicholls I A, Legg C. 1997. Igneous and metamorphic enclaves in the S-type Deddick granodiorite, Lachlan Fold Belt, SE Australia: petrographic, geochemical and Nd-Sr isotopic evidence for crustal melting and magma mixing. J. Petrol. , 38:815 -841

    [24]

    [24]Mao Jianren, Tao Kuiyuan, Lee Chi-yu, Xie Fanggui, Xu Naijing.2002. Geochronology and geochemical characteristics in Late Mesozoic Sifang pluton, southeastern Fujian, and their significance.Acta Petrologica Sinica, 18 (4): 449 -458 (in Chinese with English abstract)

    [25]

    [25]McCulloch M T, Chappell B W. 1982. Nd isotopic characteristics of Sand I-type granites. Earth Planet. Sci. Lett. , 58:51 -64

    [26]

    [26]Miller R G, ONions R K. 1985. Source of Precambrian chemical and clastic sediments. Nature, 314: 325 - 330

    [27]

    [27]Shen Weizhou, Zhu Jinchu, Liu Changshi, Xu Shijin, Ling Hongfei.1993. Sm-Nd isotopic study of basement metamorphic rocks in south China and its constraint on material sources of granitoids. Acta Petrologica Sinica, 9 ( 2 ): 115 - 124 ( in Chinese with English abstract)

    [28]

    [28]Shen Weizhou, Ling Hongfei, Li Wuxian, Wang Dezi. 2000. Crust evolution in southeast China: evidence from Nd model ages of granitoids. Science in China (Series D), 43:36 -49

    [29]

    [29]Shinjoe H. 1997. Origin of the granodiorite in the forearc region of southwest Japan: melting of the Shimano accretionary prism. Chem.Geol. , 134:237-255

    [30]

    [30]Sun S S, McDonough W F. 1989. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes.In: Saunder A D, Norry M J ( eds. ). Magmatism in the Ocean Basins. Geol. Soc. Spe. Publ., 42:313-345

    [31]

    [31]Waight T E, Maas R, Nicholls I A. 2001. Geochemical investigations of microgranitoid enclaves in the S-type Cowra granodiorite, Lachlan Fold Belt, SE Australia. Lithos, 56:165 - 186

    [32]

    [32]Wang Yuejun, Fan Weiming, Guo Feng, Li Xu. 2001. Petrological and geochemical characteristics of Mesozoic granodioritic intrusions in southeast Hunan province, China. Acta Petrologica Sinica, 17( 1 ):169 -175 (in Chinese with English abstract)

    [33]

    [33]Wang Y J, Fan W M, Guo F. 2003. Geochemistry of Mesozoic mafic rocks around the Chenzhou-Linwu fault in South China: implications for lithospheric boundary between the Yangtze and the Cathaysia Blocks. International Geology Review, 45: 263 - 286

    [34]

    [34]Watson E B, Harrison T M. 1983. Zircon saturation revisited:temperature and composition effects in a variety of crustal magma types. Earth Planet. Sci. Lett. , 64:295 -304

    [35]

    [35]Xiao Qinghui, Xing Zuoyun, Zhang Yu, Wu Guangying, Tong Jinsong.2003. The major frontiers of the recent studies of granite. Earth Science Frontiers, 10(3):221- 229 (in Chinese with English abstract)

    [36]

    [36]Xu Keqin, Zhu Jinchu, Liu Changshi, Shen Weizhou, Xu Shijin. 1989. Genetic series and material sources of granitoids in south China. J.Nanjing University ( Earth Science Edition), (3): 1 - 18 ( in Chinese with English abstract)

    [37]

    [37]Yin Jun, Zhou Guoqing. 1994. The ratios of Fe3+ to Fe2+ in amphiboles. J. Nanjing University ( Earth Science Edition), 6 (2):176 -183 (in Chinese with English abstract)

    [38]

    [38]Yu Jinsheng, Gui Xuntang, Huang Lin. 1991. Sr-Nd-O-H isotope compositions of Silun migmatite field in Luoding, Guangdong.Guangdong Geology, 6 ( 3 ): 73 - 82 ( in Chinese with English abstract )

    [39]

    [39]Zhao Zijie, Ma Daquan, Lin Huikun, Yuan Chunlin, Zhang Xiaohao.1987. The geochemical characteristics and geological setting of the formation of Longwo and Fogang granitoid batholiths, Guangdong province. In: Research Reports of the Geology and Mineral Resources of Nanling ( edited by Yichang Institute of Geology and Mineral Resources) , Wuhan: Wuhan College of Geology Press, 28-68 (in Chinese with English abstract)

    [40]

    [40]Zhou Xunruo. 1994. Hybridization in the genesis of granitoids. Earth Science Frontiers, 1 ( 1 ~ 2 ): 97 - 97 ( in Chinese with English abstract)

    [41]

    [41]Zhou Zuoxia. 1988. Chemical characteristics of mafic mica in intrusive rocks and its geological meaning. Acta Petrologica Sinica, (3): 63-73 (in Chinese with English abstract)

    [42]

    陈培荣,章邦桐,孔兴功,蔡笔聪,凌洪飞,倪琦生.1998.赣南寨背A型花岗岩体的地球化学及其构造地质意义.岩石学报,14(3):289-298

    [43]

    [43]陈培荣,孔兴功,王银喜,倪琦生,章邦桐,凌洪飞.1999.赣南燕山早期双峰式火山-侵入杂岩的Rb-Sr同位素定年及其意义.高校地质学报,5(4):379-383

    [44]

    [44]范蔚茗,王岳军,郭锋,彭头平.2003.湘赣地区中生代镁铁质岩浆作用与岩石圈伸展.地学前缘,10(3):159-169

    [45]

    [45]洪大卫,郭文歧,李戈晶,康炜,徐海明.1987.福建沿海晶洞花岗岩带的岩石学和成因演化.北京:北京科学技术出版社,1-132

    [46]

    [46]毛建仁,陶奎元,李寄嵎,谢芳贵,许乃敬.2002.闽西南晚中生代四方岩体同位素年代学、地球化学及其构造意义.岩石学报,18(4):449-458

    [47]

    [47]沈渭洲,朱金初,刘昌实,徐士进,凌洪飞.1993.华南基底变质岩的Sm-Nd同位素及其对花岗岩类物质来源的制约.岩石学报,9(2):115-124

    [48]

    [48]王岳军,范蔚茗,郭锋,李旭.2001.湘东南中生代花岗闪长质小岩体的岩石地球化学特征.岩石学报,17(1):169-175

    [49]

    [49]肖庆辉,邢作云,张昱,伍光英,童劲松.2003.当代花岗岩成因研究的几个重要前沿.地学前缘,10(3):221-229

    [50]

    [50]徐克勤,朱金初,刘昌实,沈渭洲,徐士进.1989.华南花岗岩类的成因系列和物质来源.南京大学学报(地球科学),(3):1-18

    [51]

    [51]殷俊,周国庆.1994.闪石电子探针数据中Fe3+和Fe2+的配比.南京大学学报(地球科学),6(2):176-183

    [52]

    [52]于津生,桂训唐,黄琳.1991.广东罗定泗纶混合岩田同位素组成特征.广东地质,6(3):73-82

    [53]

    [53]赵子杰,马大铨,林惠坤,袁春林,张小豪.1987.广东龙窝、佛岗花岗岩类岩体地球化学特征及其形成的地质背景.见:宜昌地质矿产研究所编,南岭地质矿产科研报告集(一),武汉:武汉地质学院出版社,28-68

    [54]

    [54]周珣若.1994.花岗岩混合作用.地学前缘,1(1~2):97-97

    [55]

    [55]周作侠.1988.侵入岩的镁铁云母化学成分特征及其地质意义.岩石学报,(3):63-73

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修回日期:  2004-02-06
刊出日期:  2004-11-30

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