滇西兰坪盆地白秧坪Pb-Zn-Cu-Ag多金属矿床东矿带成矿年代学探讨
An investigation of metallogenic chronology of eastern ore block in Baiyangping Pb-Zn-Cu-Ag polylmetallic ore deposit, Lanping Basin, western Yunnan Province
查看参考文献68篇
|
文摘
|
白秧坪Pb-Zn-Cu-Ag多金属矿集区夹持于金沙江和澜沧江断裂之间,隶属兰坪盆地北部,分为东、西2个矿带。文章采用闪锌矿、方铅矿的Rb-Sr法和成矿阶段方解石的Sm-Nd法,对白秧坪Pb-Zn-Cu-Ag多金属矿床东矿带华昌山和下区五矿段进行了成矿年代厘定,获得方铅矿以及闪锌矿和方铅矿的矿物组合Rb-Sr等时线年龄为(32.8±1.5) Ma,方解石的Sm-Nd等时线年龄为(33.32±0.43) Ma。研究表明,通过对特定矿床的主要矿石矿物采用Rb-Sr法和Sm-Nd法获得的年龄在误差范围内是一致的,从而起到了相互验证的作用,并对矿床的成矿背景具有一定的指示性。通过成矿年龄的探讨,认为东矿带铅锌为主的矿化期主要产生于青藏高原东缘晚碰撞阶段(40~26) Ma,伴随印度-亚洲大陆碰撞造山,形成逆冲推覆构造和赋矿地层,控制了Pb-Zn矿床的形成和发育。该期Pb-Zn矿床与兰坪盆地金顶和西矿带Pb-Zn矿床、囊谦盆地Pb-Zn矿床和沱沱河盆地Pb-Zn矿床具有一定的可比性。 |
|
其他语种文摘
|
As one part of the northern Lanping Basin, the Baiyangping Pb-Zn-Cu-Ag polymetallic ore district is located between the Jinshajiang fault and the Lancangjiang fault. On the basis of the sphalerite/galena Rb-Sr and calcite Sm-Nd dating, this study provides preferable ore-forming ages (32.8 ± 1.5) Ma and (33.32 ± 0.43) Ma for the Huachangshan and Xiaquwu ore plates in Baiyangping Cu-Pb-Zn-Ag polymetallic ore district, western Yunnan Province, China. The results suggest that the Rb-Sr and Sm-Nd dating data are consistent within the error range,which, in addition, has certain instruction significance for understanding the deposit metallogenic background. Moreover, due to the age of mineralization, Pb-Zn mineralization period in eastern ore belt mainly produced between 40 Ma and 26 Ma when late collision appeared in east edge of the Qinghai-Tibet plateau. Thrustnappe system and hosted ore strata were formed due to the collision and orogenesis between India and Asia, and then Pb-Zn ore deposits occurred. This period of Pb-Zn ore deposit can be compared with other similar deposits in Jingding, Nangqian,and Tuotuohe. |
|
来源
|
矿床地质
,2017,36(3):691-704 【核心库】
|
|
DOI
|
10.16111/j.0258-7106.2017.03.010
|
|
关键词
|
地球化学
;
成矿年代
;
东矿带
;
Cu-Pb-Zn-Ag多金属矿床
;
白秧坪
;
兰坪盆地
;
滇西
|
|
地址
|
1.
西北大学地质系, 大陆动力学国家重点实验室, 陕西, 西安, 710069
2.
中国科学院地球化学研究所, 矿床地球化学国家重点实验室, 贵州, 贵阳, 550002
3.
Department of Geology, University of Regina, 加拿大, Regina, S4S 0A2
4.
青海省西宁市武警黄金第六支队, 青海, 西宁, 810021
|
|
语种
|
中文 |
|
文献类型
|
综述型 |
|
ISSN
|
0258-7106 |
|
学科
|
地质学 |
|
基金
|
国家自然科学基金
;
国家973计划
|
|
文献收藏号
|
CSCD:6009434
|
参考文献 共
68
共4页
|
|
1.
Anglin C D. Sm-Nd dating of scheelite and tourmaline: Implications for the genesis of Archean gold deposits, Val d'Or,Canada.
Econ. Geol,1996,91:1372-1382
|
CSCD被引
27
次
|
|
|
|
|
2.
Bell K. Sm-Nd and Rb-Sr isotope systematics of scheelites: Possible implications for the age and genesis of vein-hosted gold deposits.
Geology,1989,17:500-504
|
CSCD被引
46
次
|
|
|
|
|
3.
Cherniak D J. REE diffusion in calcite.
Earth and Planetary Science Letters,1998,160:273-287
|
CSCD被引
13
次
|
|
|
|
|
4.
Christensen J N. Direct dating of sulfides by Rb-Sr: A critical test using the Polaris Mississippi Valley type Zn-Pb deposit.
Geochimica et Cosmochimica Acta,1995,59:5191-5197
|
CSCD被引
59
次
|
|
|
|
|
5.
Christensen J N. Testing models of large-scale crustal fluid flow using direct dating of sulfide: Rb-Sr evidence for early dewatering and formation of Mississippi Valley-type deposits, Canning Basin, Australia.
Econ. Geol,1995,90:877-884
|
CSCD被引
39
次
|
|
|
|
|
6.
Grandia F. UPb dating of MVT ore-stage calcite: Implications for fluid flow in a Mesozoic extensional basin from Iberian Peninsula.
Journal of Geochemical Exploration,2000,69/70:377-380
|
CSCD被引
10
次
|
|
|
|
|
7.
Griyet M. Apatite fission-track age correction and thermal history analysis from projected track length distributions.
Chemical Geology (Isotopic Geoscience Section),1993,103:157-169
|
CSCD被引
1
次
|
|
|
|
|
8.
Halliday A N. Sm-Nd evidence for the age and origin of a MVT ore deposit.
Nature,1990,344:54-56
|
CSCD被引
31
次
|
|
|
|
|
9.
He L Q. Thrust-controlled, sediment-hosted, Himalayan Zn-Pb-Cu-Ag deposits in the Lanping foreland fold belt, eastern margin of Tibetan Plateau.
Ore Geology Reviews,2009,36:106-132
|
CSCD被引
51
次
|
|
|
|
|
10.
Jiang S Y. Trace and rare-earth element geochemistry and Pb-Pb dating of black shales and intercalated Ni-Mo-PGE-Au sulfide ores in Lower Cambrian strata, Yangtze Platform, South China.
Mineralium Deposita,2006,41:453-467
|
CSCD被引
65
次
|
|
|
|
|
11.
Jiang S Y. Sm-Nd dating of the giant Sullivan Pb-Zn-Ag deposit, British Columbia.
Geology,2000,28:751-754
|
CSCD被引
40
次
|
|
|
|
|
12.
Kent A J R. Sm-Nd systematics of hydrothermal scheelite from the Mount Charlotte Mine,Kalgoorlie, western Australia: An isotopic link between gold mineralization and Komatiites.
Econ. Geol,1995,90:2329-2335
|
CSCD被引
15
次
|
|
|
|
|
13.
Leach D L. Mississippi Valley-type lead-zinc deposits through geological time: Implications from recent age-dating research.
Mineralium Deposita,2001,36:711-740
|
CSCD被引
84
次
|
|
|
|
|
14.
Ludwig K R.
Users Manual for Isoplot/Ex: A geochronological toolkit for Microsoft Excel. Special Pulication(1a),2001:1-53
|
CSCD被引
1
次
|
|
|
|
|
15.
Mao J W. Re-Os dating of polymetallic Ni-Mo-PGE-Au mineralisation in Lower Cambrian Black shales of South China and its geological significance.
Econ. Geol,2002,97:1051-1061
|
CSCD被引
85
次
|
|
|
|
|
16.
Nakai S. Rb-Sr dating of sphalerites from MVT ore deposits.
Geochimica et Cosmochimica Acta,1993,57:417-427
|
CSCD被引
65
次
|
|
|
|
|
17.
Peng J T. Samarium-neodymium isotope systematics of hydrothermal calcites from the Xikuangshan antimony deposit (Hunan, China): The potential of calcite as a geochronometer.
Chemical Geology,2003,200(1/2):129-136
|
CSCD被引
70
次
|
|
|
|
|
18.
Pettke T. Rb-Sr dating of sphalerite based on fluid inclusion-hosted mineral isochrons: A clarification of why it works.
Econ. Geol,1996,91:951-956
|
CSCD被引
30
次
|
|
|
|
|
19.
Symons D T A. Paleomagnetic constraints on Zn-Pb ore genesis of the Pillara Mine,Lennard Shelf, western Australia.
Mineralium Deposita,2005,39(8):944-959
|
CSCD被引
4
次
|
|
|
|
|
20.
Symons D T A. The Reocin zinc-lead deposit, Spain: Paleomagnetic dating of a late Tertiary ore body.
Minerlium Deposita,2009,44(8):867-880
|
CSCD被引
12
次
|
|
|
|
|
了解气象卫星更多信息，请访问