文章摘要信息

[an error occurred while processing this directive]

世界地质 2020, 39(4) 784-795 DOI: 10.3969/j.issn.1004-5589.2020.04.005 ISSN: 1004-5589 CN: 22-1111/P

本期目录 | 下期目录 | 过刊浏览 | 高级检索 [打印本页] [关闭]

基础地质

	扩展功能

	本文信息
	Supporting info
	PDF(5395KB)
	[HTML全文]
	参考文献[PDF]
	参考文献
	服务与反馈
	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	引用本文
	Email Alert
	文章反馈
	浏览反馈信息
	本文关键词相关文章
	尖藏花岗闪长岩
	地球化学特征
	岩石成因
	构造背景
	西秦岭
	本文作者相关文章
	武鹏飞
	毛深秋
	赵旭阳
	张学东
	陈书文
	陈柳
	PubMed
	Article by Wu P
	Article by Mao S
	Article by Zhao X
	Article by Zhang X
	Article by Chen S
	Article by Chen L

西秦岭尖藏花岗闪长岩地球化学特征、岩石成因及构造背景

武鹏飞, 毛深秋, 赵旭阳, 张学东, 陈书文, 陈柳

中水北方勘测设计研究有限责任公司, 天津 300222

摘要：西秦岭尖藏花岗闪长岩位于甘肃省甘南藏族自治州洛大乡，其地球化学特征显示SiO₂=65.36%~68.72%，Al₂O₃=15.42%~16.80%，Mg=0.66%~1.62%，Na₂O=3.10%~4.29%，K₂O=2.45%~4.04%，岩石的全碱含量Na₂O+K₂O=6.25%~7.98%，相对富钾高铝，属高钾钙碱性系列，稀土元素球粒陨石标准化曲线显示其具有富含轻稀土元素（LREE）、贫重稀土元素（HREE）以及无明显Eu异常的特点。尖藏花岗闪长岩高Sr、低Y，（La/Yb）_N=33.85~101.03，具有埃达克岩性质，岩浆来源于拆沉下地壳中基性岩石部分熔融，熔体在上升过程中受到地幔橄榄岩的混染。尖藏花岗闪长岩形成于挤压向伸展转换的后碰撞构造环境。

关键词：尖藏花岗闪长岩地球化学特征岩石成因构造背景西秦岭

Geochemical characteristics, petrogenesis and tectonic setting of Jianzang granodiorite in western Qinling

WU Peng-fei, MAO Shen-qiu, ZHAO Xu-yang, ZHANG Xue-dong, CHEN Shu-wen, CHEN Liu

China Water Resources Beifang Investigation Design and Research Co., Ltd., Tianjin 300222, China

Abstract: Jianzang granodiorite in western Qinling is located at Luoda Town of Gannan Tibetan Autonomous Prefecture in Gansu Province. The whole rock geochemical characteristics show that the contents of SiO₂ are 65.36%~68.72%, Al₂O₃ are 15.42%~16.80%, MgO are 0.66%~1.62%, Na₂O are 3.10%~4.29% and K₂O are 2.45%~4.04%. The total alkali content of the rock is Na₂O+K₂O=2.96%~8.23%. The granodiorite is rich in potassium and aluminum contents, belongs to the high-potassium-calcium-alkaline series. The chondrite-normalized REE patterns are characterized by high LREEs and low HREEs without Eu anomalies.Jianzang granodiorite has the characteristic of adakite which is characterized by high Sr and low Y, and (La/Yb)_N=33.85~101.03. The magma originates were derived from the partial melting of delaminated lower crust and were contaminated by the mantle peridotite during the ascent. The granodiorite are post-orogenic granitoids which were formed in a transitional tectonic setting from syn-(compressional setting) to post-collision (extensional setting).

Keywords: Jianzang granodiorite geochemical characteristics petrogenesis tectonic setting western Qinling

收稿日期 2020-04-27 修回日期 2020-06-24 网络版发布日期

DOI: 10.3969/j.issn.1004-5589.2020.04.005

基金项目:

中水北方勘测设计研究有限责任公司甘肃省白龙江引水工程项目（02SL180052A）

通讯作者:

作者简介:

作者Email:

参考文献：

[1] 张国伟,张本仁,袁学诚,等. 秦岭造山带与大陆动力学[M].北京:科学出版社, 2000:1-855. ZHANG Guo-wei,ZHANG Ben-ren,YUAN Xue-cheng,et al. Qinling orogenic belt and continental dynamics[M]. Beijing:Science Press, 2000:1-855.
[2] 张国伟,郭安林,姚安平. 中国大陆构造中的西秦岭-松潘大陆构造结[J]. 地学前缘,2004,11(3):23-32. ZHANG Guo-wei,GUO An-lin,YAO An-ping,et al. Western Qinling-Songpan continental tectonic node in China's continental tectonics[J]. Earth Science Frontiers, 2004,11(3):23-32.
[3] 冯益民,曹宣铎,张二朋,等.西秦岭造山带结构造山过程及动力学[M].西安:西安地图出版社,2002:1-263. FENG Yi-min,CAO Xuan-duo,ZHANG Er-peng,et al. Process and dynamics of structural orogeny in the western Qinling orogenic belt[M]. Xi'an:Xi'an Map Publishing House, 2002:1-263.
[4] 甘肃省地质矿产局.甘肃省区域地质志[M].北京:地质出版社,1989:1-752. Gansu Provincial Bureau of Geology and Mineral Resources. Regional geology of Gansu Province[M]. Beijing:Geological Publishing House,1989:1-752.
[5] 张宏飞,靳兰兰,张利,等.西秦岭花岗岩类地球化学和Pb-Sr-Nd同位素组成对基底性质及其构造属性的限制[J].中国科学(D辑),2005,35(10):914-926. ZHANG Hong-fei,JIN Lan-lan,ZHANG Li,et al. Basement and structural character constraints from geochemical and Pb-Sr-Nd isotope composition[J].Science in China(Ser.D),2005,35(10):914-926.
[6] 刘哲东,孙丰月,马芳芳,等.陕西南秦岭柞水岩体锆石U-Pb年龄、岩石地球化学特征及其地质意义[J].世界地质,2013,32(2):236-243. LIU Zhe-dong,SUN Feng-yue,MA Fang-fang,et al. Zircon U-Pb ages and petrochemical characteristics of Zhashui granitic plutons in South Qinling Orogen of Shanxi and their geological significance[J]. Global Geology,2013,32(2):236-243.
[7] 李佐臣,裴先治,李瑞保,等.西秦岭糜署岭花岗岩体年代学、地球化学特征及其构造意义[J].岩石学报,2013,29(8):2617-2634. LI Zuo-chen,PEI Xian-zhi,LI Rui-bao,et al. LA-ICP-MS zircon U-Pb dating,geochemistry of the Mishuling intrusion in western Qinling and their tectonic significance[J]. Acta Petrologica Sinica,2013,29(8):2617-2634.
[8] 陈清敏,郭岐明,王强,等.西秦岭秦岭梁环斑花岗岩锆石U-Pb年龄及地球化学特征[J].地质通报,2019,38(2/3):213-222. CHEN Qing-min, GUO Qi-ming, WANG Qiang, et al. Zircon U-Pb age and geochemical characteristics of Qinlingliang rapakiwi granite from western Qinling orogenic belt in Shaanxi[J].Geological Bulletin of China,2019, 38(2/3):213-222.
[9] 张旗,王焰,熊小林,等.埃达克岩和花岗岩:挑战与机遇[M]. 北京:中国大地出版社,2008:1-344. ZHANG Qi, WANG Yan, XIONG Xiao-lin, et al. Adakite and granite:challenge and opportunity[M].Beijing:China Land Press,2008:1-344.
[10] Zhang M, O'Reilly S Y.Muhiplc sources for basahie rocks from Dubbo, eastern Australia:geochemical evidence for plume lithospheric mantle interaction[J].Chemical Geology,1997,136(1/2):33-54.
[11] 牟保磊.元素地球化学[M].北京:北京大学出版社,1999:1-227. MOU Bao-lei.Element geochemistry[M].Beijing:Peking University Publishing House,1999:1-227.
[12] Kravchinsky V A,Congne J P,Harbert W P,et al.Evolution of the Mongol-Okhotsk ocean as constrained by new palaeomagnetic data from the Mongol-Okhotsk suture zone,Siberia[J].Geophysical Journal International,2002,148:34-57.
[13] Wang Q,Xu J F,Zhao Z H,et al. Cretaceous high-potassium intrusive rocks in the Yueshan-Hongzhen area of East China:adakites in an extensional tectonic regime within a continent[J]. Geochemical Journal,2004, 38:417-434.
[14] Liu S,Hu R Z,Feng C X,et al. Cenozoic high Sr/Y volcanic rocks in the Qiangtang terrane, northern Tibet:geochemical and isotopic evidence for the origin of delaminated lower continental melts[J]. Geological Magazine, 2008,145:463-474.
[15] Xu J F,Shinjo R,Defant M J,et al. Origin of Mesozoic adakitic intrusive rock in the Ningzhen area of East China:partial melting of delaminated lower continental crust[J]. Geology, 2002,30:1111-1114.
[16] Martin H. Effect of steeper Archean geothermal gradient on geochemistry of subduction-zone magmas[J]. Geology,1986,14:753-756.
[17] Drummond M S, Defant M J. A model for trondhjemite-tonalite-dacite genesis and crustal growth via slab melting:Archean to modern comparisons[J]. Journal of Geophysical Research(Solid Earth),1990,95:21503-21521.
[18] Defant M J, Drummond M S. Derivation of some modern arc magmas by melting of young subducted lithosphere[J].Nature, 1990,347:662-665.
[19] Kay R W,Kay S M. Delamination and delamination magmatism[J]. Tectonophysics, 1993,219:177-189.
[20] Castillo P R, Janney P E, Solidum R U. Petrology and geochemistry of Camiguin Island, southern Philippines:insights to the source of adakites and other lavas in a complex arc setting[J]. Contributions to Mineralogy and Petrology,1999, 134:33-51.
[21] Atherton M P, Petford N. Generation of sodium-rich magmas from newly underplated basaltic crust[J]. Nature, 1993,362:144-146.
[22] Xu J F, Shinjo R, Defant M J, et al. Origin of the Mesozoic adakitic intrusive rocks in the Ningzhen area of east China:partial melting of delaminated lower continental crust?[J].Geology,2002, 30:1111-1114.
[23] Gao S, Roberta L R, Yuan H L, et al. Recycling of lower continental crust in the North China Craton[J]. Nature, 2004, 424:392-397.
[24] Martin H. Adakitic magmas:modern analogues of Archean granitoids[J]. Lithos,1999,46:411-429.
[25] 张旗,王焰,钱青,等.中国东部燕山期埃达克岩的特征及其构造-成矿意义[J].岩石学报,2001,17(2):236-244. ZHANG Qi,WANG Yan,QIAN Qing,et al.The characteristics and tectonic-metallogenic significances of the adakites in Yanshan period from eastern China[J].Acta Petrologica Sinica,2001,17(2):236-244.
[26] Rudnick R L.Making continental crust[J].Nature,1995,378:571-578.
[27] 许继峰,邬建斌,王强,等.埃达克岩与埃达克质岩在中国的研究进展[J].矿物岩石地球化学通报,2014,33(1):6-13. XU Ji-feng,WU Jian-bin,WANG Qiang,et al.Research progress of adakite and adakite rock in China[J]. Bulletin of Mineralogy, Petrology and Geochemistry,2014,33(1):6-13.
[28] Kaygusuz A, Siebel W, Şen C, et al. Petrochemistry and petrology of I-type granitoids in an arc setting:the composite torul pluton, eastern pontides, NE Turkey[J].International Journal of Earth Sciences, 2007,97(4):739-764.
[29] 张旗,殷先明,殷勇,等.西秦岭与埃达克岩和喜马拉雅型花岗岩有关的金铜成矿及找矿问题[J].岩石学报,2009,25(12):3103-3122. ZHANG Qi,YIN Xian-ming,YIN Yong,et al. Issues on metallogenesis and prospecting of gold and copper deposits related to adakite and Himalayan type granite in West Qinling[J].Acta Petrologica Sinica,2009,25(12):3103-3122.
[30] 殷勇,殷先明.西秦岭北带与埃达克岩和喜马拉雅型花岗岩有关的斑岩型铜-钼-金成矿作用[J].岩石学报,2009,25(5):1239-1252. YIN Yong,YIN Xian-ming. Porphyry Cu-Mo-Au mineralization related to adakite and Himalayan type granite in the northern margin of West Qinling[J].Acta Petrologica Sinica,2009,25(5):1239-1252.
[31] 闫臻,李继亮,王宗起,等.西秦岭楔的构造属性及其增生造山过程[J].岩石学报,2012,28(6):1808-1828. YAN Zhen,LI Ji-liang,WANG Zong-qi,et al. Tectonic attribute and accretionary orogen of the West Qinling Wedge, northestern margin of the Tibet Plateau[J].Acta Petrologica Sinica,2012,28(6):1808-1828.
[32] Guo X,Yan Z,Wang Z,et al. Middle Triassic and Lu-Hf zircon characterization of the Guangcha complex in the west Qingling terrane, central China[J].Journal of the Geological Society, 2012,169(3):327-336.
[33] 张宏飞,陈岳龙,徐旺春,等.青海共和盆地周缘印支期花岗岩类的成因及其构造意义[J].岩石学报,2006,22(12):2910-2922. ZHANG Hong-fei,CHEN Yue-long,XU Wang-chun,et a1.Granitoids around Gonghe Basin in Qinghai Province:petrogenesis and tectonic implications[J].Acta Petrologica Sinica,2006,22(12):2910-2922.
[34] Rapp R P, Shimizu N, Norman M D, et al. Reaction between slab-derived melts and peridotite in the mantle wedge:experimental constraints at 3.8 GPa[J]. Chemical Geology, 1999,160:335-356.
[35] Stern C R, Kilian R. Role of the subducted slab, mantle wedge and continental crust in the generation of adakites from the Andean Austral volcanic zone[J]. Contributions to Mineralogy and Petrology,1996, 123:263-281.
[36] Wang Q,Xu J F,Zhao Z H,et al. Cretaceous high-potassium intrusive rocks in the Yueshan-Hongzhen area of East China:adakites in an extensional tectonic regime within a continent[J]. Geochemical Journal,2004, 38:417-434.
[37] Xu J F, Shinjo R, Defant M J, et al. Origin of Mesozoic adakitic intrusive rock in the Ningzhen area of East China:partial melting of delaminated lower continental crust[J]. Geology, 2002,30:1111-1114.
[38] 张国伟,张本仁,袁学诚,等.秦岭造山带与大陆动力学[M].北京:科学出版社,2001:1-855. ZHANG Guo-wei,ZHANG Ben-ren,YUAN Xue-cheng,et al. Qinling orogenic belt and continent dynamics[M]. Beijing:Science Press,2001:1-855.
[39] 冯益民,曹宣铎,张仁明,等.西秦岭造山带的演化、构造格局和性质[J].西北地质,2003,36(1):1-10. FENG Yi-min,CAO Xuan-duo,ZHANG Ren-ming, et al. Tectonic evolution framework and nature of the West Qinling orogenic belt[J]. Northwestern Geology,2003,36(1):1-10.
[40] 曹宣铎,胡云绪.秦岭加里东晚期-华力西早期复式前陆盆地[J].西北地质科学,2000,21(2):1-14. CAO Xuan-duo, HU Yun-xu. Complex foreland basins from Late Caledonian to Early Hercynian in Qinling[J].Northwestern Geosciences,2000,21(2):1-14.
[41] 杨军录,冯益民.西秦岭吴家山隆起的隆升过程及时代[J].西北地质,1999,32(4):1-4. YANG Jun-lu, FENG Yi-min. Uplift process and time of Wujiashan Uplift in West Qinling[J].Northwestern Geology,1999,32(4):1-4.
[42] 肖序常,汤耀庆,冯益民,等.新疆北部及其邻区大地构造[M].北京:地质出版社,1992:1-144. XIAO Xu-chang, TANG Yao-qing, FENG Yi-min, et al. Geotectonic of northern Xinjiang and its adjacent area[M].Beijing:Geological Publishing House,1992:1-144.
[43] Qin J F,Lai S C,Wang J, et al.Zircon LA-ICPMS U-Pb age,Sr-Nd-Pb isotopic compositions and geochemistry of the Triassic postcollisional Wulong adakitic granodiorite in the South Qinling,central China,and its petrogenesis[J]. Acta Geologica Sinica, 2008, 82(2):425-437.
[44] 赖绍聪,秦江峰.南秦岭勉略缝合带蛇绿岩与火山岩[M]. 北京:地质出版社,2010:1-257. LAI Shao-cong, QIN Jiang-feng. Ophiolites and associated volcanics in the Mianlue tectonic zone of the South Qinling belt[M]. Beijing:Geological Publishing House,2010:1-257.
[45] Barbarin B.A review of the relationships between granitoid types,their origins and their geodynamic environments[J].Lithos,1999,46(3):605-626.
[46] Zhao X X,Coe R S,Gilder S A, et al. Palaeomagnetic constraints on the palaeogeography of China:implications for Gondwana land[J].Australian Journal of Earth Sciences,1996,43(6):643-672.
[47] Liégeois J P,Navez J,Hertogen J, et al.Contrasting origin of post-collisional high-K calc-alkaline and shoshonitic versus alkaline and peralkaline granitoids:the use of sliding normalization[J].Lithos,1998,45(1/4):1-28.
[48] Pearce J A.Sources and setting of granitic rocks[J].Episodes,1996,19(14):120-125.

本刊中的类似文章

1．李彤,陆继龙,来雅文,赵威,汤肖丹,蓝天.吉林市苇沙河水中重金属元素地球化学特征与风险评价[J]. 世界地质, 2022,41(2): 402-410

2．华杰雄,刘汉仑.浙江治岭头地区霏细岩锆石Ｕ-Ｐｂ年龄、地球化学特征及形成背景[J]. 世界地质, 2022,41(1): 26-37

3．禹惠敏，王冬艳，王兴佳，商屹.东北水稻产区土壤-作物系统锌元素生态地球化学特征[J]. 世界地质, 2022,41(1): 217-226

4．写熹，汪晶，蔡晓兵.安徽新屯仓地区土壤地球化学特征及找矿潜力[J]. 世界地质, 2021,40(4): 860-871

5．商青青，郝宇杰，任云生. 吉林敦化塔东铁矿床赋矿岩石地球化学、锆石U--Pb 年代学及其地质意义[J]. 世界地质, 2021,40(3): 525-536

6．井佳浩，杨浩，高妍，兰丽雪，吴浩然. 佳木斯地块林口地区早古生代花岗质岩石的成因

及构造背景

[J]. 世界地质, 2021,40(3): 547-559

7．王强，和钟铧，薛吉祥. 大兴安岭科右中旗地区闪长玢岩年代学、地球化学

及构造背景

[J]. 世界地质, 2021,40(2): 240-255