GEOLOGICAL CHARACTERISTICS AND METALLOGENIC AGE OF BORLY PORPHYRY CU DEPOSITS IN BALKHASH METALLOGENIC BELT, KAZAKHSTAN
-
摘要: 巴尔喀什成矿带是世界著名的中亚成矿域斑岩型铜钼成矿带, 产出许多大型-超大型斑岩型铜钼矿床和一些石英脉-云英岩型钨钼矿床。本文介绍了巴尔喀什成矿带博尔雷大型斑岩型铜(钼)矿床地质特征, 并对该矿床2件辉钼矿样品进行了铼-锇同位素分析, 得到博尔雷大型斑岩型铜(钼)矿床的辉钼矿模式年龄(平均值)为315.9 Ma, 说明了晚石炭世巴尔喀什成矿带斑岩型铜钼矿床的形成年龄, 属海西晚期构造-岩浆活动的产物。博尔雷斑岩铜矿成矿时代介于东天山与西准噶尔斑岩型铜矿床的成矿时代之间。Abstract: The Balkhash Metallogenic Belt in Kazakhstan, with the output of many large and superlarge porphyry Cu-Mo deposits and some quartz-vein greisen W-Mo deposits, is a very famous porphyritic Cu-Mo metallogenic belt in Central Asian Metallogenic domain. In this paper, the geological characteristics of the Borly Porphyry Cu Deposit are briefly introduced, and 2 molybdenite samples from the deposit are selected for Re-Os isotopic dating. The molybdenites from porphyritic Borly Cu-Mo deposit give average model Re-Os ages of 315.9 Ma. The Re-Os model ages of the deposit suggest that Late Carboniferous porphyry granitoid and pegmatite magmatism during Late Hercynian movement. Comparing to the Juggar-East Tianshan porphyry Cu metallogenic belt in northwestern China, the time of the Cu-Mo metallogenesis in Balkhash metallogenic belt, is between that of Tuwu-Yandong and Baogutu porphyry Cu deposits in East Tianshan and west Junggar.
-
Key words:
- Re-Os isotopic age /
- molybdenite /
- Borly Porphyry Cu deposit /
- Balkhash Metallogenic Belt /
- Kazakhstan
-
图 1 博尔雷斑岩型铜矿床立体图解(a)和矿带分布图(b) (据Zhukov NM, 转引自Abdulin et al., 1998[16])
1.英安岩质喷出岩和凝灰岩; 2.细粒花岗斑岩; 3.斑状闪长岩; 4.含大量斑铜矿的斑状花岗闪长岩; 5.花岗岩; 6.等粒花岗闪长岩; 7.含大量细晶岩的斑状花岗闪长岩; 8.绢英岩; 9.矿体; 10.侵入体(a)和传统的接触变质带(b); 11.内插法(a)和外延法(b)确定的矿体界线; 12.断层; 13.钻孔
Figure 1. Bloc-diagram (a) and ore zone (b) of Borly porphyry Cu deposit (after Abdulin et al. 1998[16])
表 1 哈萨克斯坦巴尔喀什成矿带博尔雷斑岩铜钼矿床辉钼矿样品Re-Os同位素分析数据
Table 1. Re-Os isotopic data for molybdenites from Borly Cu-Mo deposits in Balkhash metallogenic belt, Kazakhstan and the standard material
-
[1] 陈宣华, 陈正乐, 杨农.区域成矿与矿田构造研究:构建成矿构造体系[J].地质力学学报, 2009, 15 (1):1 ~15. doi: 10.3969/j.issn.1006-6616.2009.01.001CHEN Xuanhua, CHEN Zhengle, YANG Nong. Study on regional mineralizations and ore-field structures:bring on the building of mineralizing tectonic systems[J]. Journal of Geomechanics, 2009, 15 (1):1~15 (in Chinese with English abstract). doi: 10.3969/j.issn.1006-6616.2009.01.001 [2] 陈宣华, 王志宏, 杨农, 等.中亚巴尔喀什成矿带萨亚克大型铜矿田矿床地质特征与成矿模式[J].地质力学学报, 2010, 16 (2):189~202. doi: 10.3969/j.issn.1006-6616.2010.02.008CHEN Xuanhua, WANG Zhihong, YANG Nong, et al. Geological Characteristics and Metallogenic Model of Large-scale Sayak Skarn Copper Ore Field, Balkhash Metallogenic Belt, Central Asia[J]. Journal of Geomechanics, 2010, 16 (2):189~202. doi: 10.3969/j.issn.1006-6616.2010.02.008 [3] 陈宣华, 杨农, 陈正乐, 等.哈萨克斯坦阿克斗卡超大型斑岩型铜矿田地质特征与成矿模式[J].地质力学学报, 2010, 16 (4):326~339. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20100401&journal_id=dzlxxbCHEN Xuanhua, YANG Nong, CNEN Zhengle, et al. Geological Characteristics and Metallogenic Model of Super-Large Porphyry Copper Deposit in Aktogai Ore Field, Kazakhstan[J]. Journal of Geomechanics, 2010, 16 (4):326~339. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20100401&journal_id=dzlxxb [4] 韩淑琴, 陈宣华, 杨农, 等.哈萨克斯坦科翁腊德斑岩型铜矿地质特征与成矿模式[J].地质力学学报, 2010, 16 (2):203~212. doi: 10.3969/j.issn.1006-6616.2010.02.009HAN Shuqin, CHEN Xuanhua, YANG Nong, et al. Geological characteristics and metallogenic model of super-large Kounrad porphyry copper deposit, Kazakhstan[J]. Journal of Geomechanics, 2010, 16 (2):203~212. doi: 10.3969/j.issn.1006-6616.2010.02.009 [5] 王志宏, 陈宣华, 杨农, 等.巴尔喀什成矿带奎干-玛依布拉克斑岩型铜矿区矿床地质特征与开发前景分析[J].地质力学学报, 2010, 16 (2):213~222. doi: 10.3969/j.issn.1006-6616.2010.02.010WANG Zhihong, CHEN Xuanhua, YANG Nong, et al. The geological characteristics ang development prospects of deposits in Kuigan-Maibulak copper ore region in Balkhash metallogenic belt[J]. Journal of Geomechanics, 2010, 16 (2):213~222. doi: 10.3969/j.issn.1006-6616.2010.02.010 [6] Singer D A, Berger V I, Menzie W D, Berger B R. Porphyry copper deposit density[J]. Economic Geology, 2005, 100: 491~514. doi: 10.2113/gsecongeo.100.3.491 [7] 涂光炽.初议中亚成矿域[J].地质科学, 1999, 34 (4):397~404. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199900082920TU Guangzhi. On the Certral Asia metallogenic province[J]. Scientia Geologica Sinica, 1999, 34 (4):397~404 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199900082920 [8] 何国琦, 朱永峰.中国新疆及其邻区地质矿产对比研究[J].中国地质, 2006, 33 (3):451~460. doi: 10.3969/j.issn.1000-3657.2006.03.001HE Guoqi, ZHU Yongfeng. Comparative study of the geology and mineral resources in Xinjiang, China, and its adjacent regions[J]. Geology in China, 2006, 33 (3):451~460 (in Chinese with English abstract). doi: 10.3969/j.issn.1000-3657.2006.03.001 [9] 朱永峰, 何国琦, 安芳.中亚成矿域核心地区地质演化与成矿规律[J].地质通报, 2007, 26 (9):1167~ 1177. doi: 10.3969/j.issn.1671-2552.2007.09.018ZHU Yongfeng, HE Guoqi, AN Fang. Geological evolution and metallogeny in the core part of the Central Asian metallogenic domain[J]. Geological Bulletin of China, 2007, 26 (9):1167~1177 (in Chinese with English abstract). doi: 10.3969/j.issn.1671-2552.2007.09.018 [10] 李明, 周圣华, 胡庆雯, 等.中亚成矿域斑岩铜(钼)矿带的认识与建立[J].中国地质, 2007, 34 (5):870 ~877. doi: 10.3969/j.issn.1000-3657.2007.05.014LI Ming, ZHOU Shenghua, HU Qingwen, et al. Knowledge of porphyry Cu (Mo) ore belts in the Central Asian metallogenic domain and their establishment[J]. Geology in China, 2007, 34 (5):870~877 (in Chinese with English abstract). doi: 10.3969/j.issn.1000-3657.2007.05.014 [11] 李光明, 秦克章, 李金祥.哈萨克斯坦环巴尔喀什斑岩铜矿地质与成矿背景研究[J].岩石学报, 2008, 24 (12):2679~2700. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200812003LI Guangming, QIN Kezhang, LI Jinxiang. Geological features and tectonic setting of porphyry copper deposits rounding the Balkhash region, Central Kazakhstan, Central Asia[J]. Acta Petrologica Sinica, 2008, 24 (12):2679~2700. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200812003 [12] Heinhorst J, Lehmann B, Ermolov P, Serykh V, Zhurutin S. Paleozoic crustal growth and metallogeny of Central Asia; evidence from magmatic-hydrothermal ore systems of Central Kazakhstan[J]. Tectonophysics, 2000, 328 (1~2):69~ 87. http://cn.bing.com/academic/profile?id=1863289425c56fdee0f1bf063f00f1b9&encoded=0&v=paper_preview&mkt=zh-cn [13] Heubeck C. Assembly of central Asia during the middle and late Paleozoic. In. Hendrix M S, Davis G A. eds. Paleozoic and Mesozoic tectonic evolution of central Asia: From continental assembly to intracontinental deformation[J]. Boulder, Colorado, Geological Society of America Memoir, 2001, 194: 1~22. [14] Xiao W J, Windley B F, Yuan C, Sun M, Han C M, Lin S F, Chen H L, Yan Q R, Liu D Y, Qin K Z, Li J L, Sun S. Paleozoic multiple subduction-accretion processes of the southern Altaids[J]. American Journal of Science, 2009, 309: 221~270.DOI: 10.2475/03.2009.02. [15] Xiao Wenjiao, Han Chunming, Yuan Chao, Sun Min, Lin Shoufa, Chen Hanlin, Li Zilong, Li Jiliang, Sun Shu. Middle Cambrian to Permian subduction-related accretionary orogenesis of Northern Xinjiang, NW China:Implications for the tectonic evolution of central Asia[J]. Journal of Asian Earth Sciences, 2008, 32:102~117. doi: 10.1016/j.jseaes.2007.10.008 [16] Abdulin A A, Bespaev H A, Daukeev C Zh, Miroshnichenko L A, Votsalevskiy E S. Copper deposits of Kazakhstan, reference book[M]. Almaty, Kazakhstan: Ministry of Ecology and Natural Resources of the Republic of Kazakhstan, 1998, 1~141. [17] Selby D, Creaser R A. Re-Os geochronology and systematics in molybdenite from the Endako porphyry molybdenum deposit, British Columbia, Canada[J]. Economic Geology, 2001, 96:197~204. doi: 10.2113/gsecongeo.96.1.197 [18] Stein H J, Scherst'en A, Hannah J L, Markey R J. Subgrain-scale decoupling of Re and 187 Os and assessment of laser ablation ICP-MS spot dating in molybdenite[J]. Geochimica et Cosmochimica Acta, 2003, 67 (19):3673~3686. doi: 10.1016/S0016-7037(03)00269-2 [19] Stein H J, Markey R J, Morgan J W, Hannah J L, Scherst'en A. The remarkable Re-Os chronometer in molybdenite:How and why it works[J]. Terra Nova, 2001, 13 (6):479~486. doi: 10.1046/j.1365-3121.2001.00395.x [20] 杜安道, 屈文俊, 王登红, 等.辉钼矿亚晶粒范围内Re和187 Os的失耦现象[J].矿床地质, 2007, 26 (5): 572~580. doi: 10.3969/j.issn.0258-7106.2007.05.010DU Andao, QU Wenjun, WANG Denghong, et al. Subgrain-size decoupling of Re and 187 Os within molybdenite[J]. Mineral Deposits, 2007, 26 (5):572~580 (in Chinese with English abstract). doi: 10.3969/j.issn.0258-7106.2007.05.010 [21] 杜安道, 赵敦敏, 王淑贤, 等. Carius管溶样和负离子热表面电离质谱准确测定辉钼矿铼-锇同位素地质年龄[J].岩矿测试, 2001, 20 (4):247~252. doi: 10.3969/j.issn.0254-5357.2001.04.002DU Andao, ZHAO Dunmin, WANG Shuxian, et al. Carius tube sample preparation[J]. Rock and Mineral Analysis, 2001, 20 (4):247~252 (in Chinese with English abstract). doi: 10.3969/j.issn.0254-5357.2001.04.002 [22] 杜安道, 何红蓼, 殷宁万, 等.辉钼矿的铼-锇同位素地质年龄测定方法研究[J].地质学报, 1994, 68 (4): 339~347. doi: 10.3321/j.issn:0001-5717.1994.04.005DU Andao, HE Hongliao, YIN Ningwan, et al. A study on the Rhenium-Osmium geochronometry of molybdenites[J]. Acta Geologica Sinica, 1994, 68 (4):339~347 (in Chinese with English abstract). doi: 10.3321/j.issn:0001-5717.1994.04.005 [23] Du Andao, Wu Shuqi, Sun Dezhong, Wang Shuxian, Qu Wenjun, Richard Markey Holly Stein, John Morgan, Dmitry Malinovskiy. Preparation and certification of Re-Os dating reference materials:molybdenite HLP and JDC[J]. Geostandard and Geoanalytical Research, 2004, 28 (1):41~52. doi: 10.1111/ggr.2004.28.issue-1 [24] 屈文俊, 杜安道.高温密闭溶样电感耦合等离子体质谱准确测定辉钼矿铼-锇地质年龄[J].岩矿测试, 2003, 22 (4):254~257. doi: 10.3969/j.issn.0254-5357.2003.04.003QU Wenjun, DU Andao. Highly precise Re-Os dating of molybdenite by ICP-MS with Carius tube sample digestion[J]. Rock and Mineral Analysis, 2003, 22 (4):254~257 (in Chinese with English abstract). doi: 10.3969/j.issn.0254-5357.2003.04.003 [25] 屈文俊, 杜安道.电感耦合等离子体质谱测定辉钼矿中Re、Os含量时的质量分馏效应的校正[J].质谱学报, 2004, 25 (增刊):181~182. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zpxb2004z1089QU Wenjun, DU Andao. Correction of mass bias in the determination of rhenium and osmium in molybdenite by ICP-MS [J]. Journal of Chinese Mass Spectrometry Society, 2004, 25 (Suppl.):181~182 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zpxb2004z1089 [26] 李勇, 陈宣华, 屈文俊, 等.巴尔喀什成矿带阿克沙套云英岩型钨钼矿床地质特征与铼-锇同位素测年分析[J].地质力学学报, 2010, 16 (4):349~358. doi: 10.3969/j.issn.1006-6616.2010.04.003LI Yong, CHNE Xuanhua, QU Wenjun, et al. Geological characteristics and Re-Os isotopic dating of Akshatau greisen-type W-Mo deposit in Balkhash metallogenic belt[J]. Journal of Geomechanics, 2010, 16 (4):349~358 (in Chinese with English abstract). doi: 10.3969/j.issn.1006-6616.2010.04.003 [27] Lambert D D, Foster J G, Frick L R, Li C, Naldrett A J. Re-Os isotopic systematics of the Voisey's Bay Ni-Cu-Co magmatic ore system, Labrador, Canada[J]. Lithos, 1999, 47:69~88. doi: 10.1016/S0024-4937(99)00008-0 [28] 唐功建, 王强, 赵振华, 等.西准噶尔包古图成矿斑岩年代学与地球化学:岩石成因与构造、铜金成矿意义[J].地球科学, 2009, 34 (1):56~74. doi: 10.3321/j.issn:1000-2383.2009.01.007TANG Gongjian, WANG Qiang, ZHAO Zhenhua, et al. Geochronology and geochemistry of the ore-bearing porphyries in the Baogutu area (western Junggar):petrogenesis and their implications for tectonics and Cu-Au mineralization[J]. Earth Science, 2009, 34 (1):56~74 (in Chinese with English abstract). doi: 10.3321/j.issn:1000-2383.2009.01.007 [29] 宋会侠, 刘玉琳, 屈文俊, 等.新疆包古图斑岩铜矿矿床地质特征[J].岩石学报, 2007, 23 (8):1981~ 1988. doi: 10.3969/j.issn.1000-0569.2007.08.018SONG Huixia, LIU Yulin, QU Wenjun, et al. Geological characters of Baogutu porphyry copper deposit in Xinjiang, NW China[J]. Acta Petrologica Sinica, 2007, 23 (8):1981~1988 (in Chinese with English abstract). doi: 10.3969/j.issn.1000-0569.2007.08.018 [30] 陈富文, 李华芹, 陈毓川, 等.东天山土屋-延东斑岩铜矿田成岩时代精确测定及其地质意义[J].地质学报, 2005, 79 (2):256~261. doi: 10.3321/j.issn:0001-5717.2005.02.011CHEN Fuwen, LI Huaqin, CHEN Yuchuan, et al. Zircon SHRIMP U-Pb dating and its geological significance of mineralization in Tuwu-Yandong porphyry copper mine, east Tianshan Mountain[J]. Acta Geologica Sinica, 2005, 79 (2):256~261 (in Chinese with English abstract). doi: 10.3321/j.issn:0001-5717.2005.02.011 [31] 芮宗瑶, 王龙生, 王义天, 等.东天山土屋和延东斑岩铜矿床时代讨论[J].矿床地质, 2002, 21 (1):16~ 21. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=KCDZ200201003&dbname=CJFD&dbcode=CJFQRUI Zongyao, WANG Longsheng, WANG Yitian, Liu Yulin. Discusion on metallogenic age of the Tuwu and Yandong porphyry copper deposit in East Tianshan Mountains[J]. Mineral Deposits, 2002, 21 (1):16~21 (in Chinese with English abstract). http://kns.cnki.net/KCMS/detail/detail.aspx?filename=KCDZ200201003&dbname=CJFD&dbcode=CJFQ [32] 吴华, 李华芹, 陈富文, 等.东天山哈密地区赤湖钥铜矿区斜长花岗斑岩锆石SHRIMP年龄[J].地质通报, 2006, 25 (5):549~552. doi: 10.3969/j.issn.1671-2552.2006.05.003WU Hua, LI Huaqin, CHNE Fuwen, et al. Zircon SHRIMP U-Pb dating of plagiogranite porphyry in the Chihu molybdenum-copper district, Hami, east Tianshan[J]. Geological Bulletin of China, 2006, 25 (5):549~552 (in Chinese with English abstract). doi: 10.3969/j.issn.1671-2552.2006.05.003 -
下载:
点击查看大图
图(1) / 表(1)
计量
- 文章访问数: 281
- HTML全文浏览量: 140
- PDF下载量: 17
- 被引次数: 0
