黑龙江省砂宝斯金矿床成矿条件及成因探讨

J4 ›› 2008, Vol. 16 ›› Issue (6): 22-26.

黑龙江省砂宝斯金矿床成矿条件及成因探讨

赵春荣¹ , 王晓勇², 胡琴霞¹, 陈满¹, 刘洪利¹

1. 武警黄金第一总队,黑龙江哈尔滨150086;
2. 武警黄金第三支队,黑龙江哈尔滨150086

收稿日期:2008-07-11 修回日期:2008-08-13 出版日期:2008-12-23 发布日期:2011-07-06
作者简介:赵春荣(1964-) ,女,高级工程师,从事地质勘查工作.

Ore2form ing Conditions and Genesis of the Shabaosi Gold Deposit , He ilongjiang Prov ince

ZHAO Chunrong¹,WANG Xiaoyong² , HU Qinxia¹ , CHEN Man¹ ,L IU Hongli¹

1. The First Gold General Party of CAPF, Ha rbin 150086, Heilongjiang, China;
2. N o. 3 Gold Geolog ical Pa rty of CAPF, Harbin 150086, Heilongjiang, China

Received:2008-07-11 Revised:2008-08-13 Online:2008-12-23 Published:2011-07-06

摘要/Abstract

摘要：

砂宝斯金矿床为近年来在黑龙江省漠河县发现的一大型岩金矿床,产于中侏罗统陆相碎屑岩中,共有6条矿脉,走向近SN。金矿体严格受SN和NNW向断裂控制,围岩和侵入岩参与了成矿作用。通过流体包裹体的研究认为:成矿流体属于Ca2 +(K+ 、Na+ ) 2SO2 -4 ( F- 、Cl- )型,具有低盐度(0. 8wt%～9. 2wt% ) 、低密度(0. 895g/ cm3 ) 、偏碱性(pH值为8. 05～8. 26) 、高硫低氧(Logfo2值为- 39. 4～ - 39. 2)和相对还原环境(Eh值为- 0. 71～ - 0. 68)的特点;成矿温度为200～230℃、成矿压力为40MPa,成矿深度为1. 33km。矿石Pb、S、C、H和O同位素及岩(矿)石微量元素分析研究表明:金矿成矿物质来源于深部岩浆和地层;成矿流体主要来源于深部岩浆,有部分大气降水加入,是岩浆热液和大气降水的混合流体。砂宝斯金矿床的地质—地球化学特征与世界低硫化型浅成低温热液金矿类似,其成因类型属低硫化型浅成低温热液金矿床。

关键词: 砂宝斯金矿床, 地质特征, 成矿条件, 矿床成因, 黑龙江

Abstract:

The Shabaosi gold deposit inMohe County, Heilongjiang Province, is a large gold deposit. It occurred in the Middle Jurassic continental clastic rock. There are six ore veinswith nearly SN trend in the deposit. The ore bodies are strictly controlled by SN and NNW trend fault and the surrounding rocks and the intrusive rocks are involved in the mineralization. From the study of fluid inclusions, it is concluded that the ore2forming fluid belongs to Ca2 + ( K+ 、Na+ ) 2SO22 4 ( F2、Cl2 ) type,which is characterized by the low salinity (0. 8% ～9. 2% ) , low density (0. 895g/ cm3 ) , alkali (pH: 8. 05～8. 26) , high sulfide, low oxidize (Logfo2 : 239. 4 ～239. 2) and relative reducing environment ( Eh:- 0. 71～ - 0. 68 ). The ore2forming temperature ranges from 200 ～230℃, with p ressure of 40MPa and dep th of 1. 33km. Based on the analysis of Pb, S, C, H and O isotopes and the study ofmicroelements of the gold deposit, it is found that the ore2forming elements are from magma and strata in dep th. The ore2forming fluids are mainly derived from magma in dep th,with a little atmospheric water. The geological and geochemical characteristics of the Shabaosi gold deposit are similar to those of low sulphidation ep ithermal gold deposits in the world, and it belongs to low sulphidation ep ithermal gold deposit.

Key words: Shabaosi gold deposit, Geological characteristics, Ore2forming condition, Ore genesis, Heilongjiang

中图分类号:

P618. 51

赵春荣 , 王晓勇 , 胡琴霞 , 陈满 , 刘洪利. 黑龙江省砂宝斯金矿床成矿条件及成因探讨[J]. J4, 2008, 16(6): 22-26.

ZHAO Chunrong,WANG Xiaoyong , HU Qinxia , CHEN Man ,L IU Hongli. Ore2form ing Conditions and Genesis of the Shabaosi Gold Deposit , He ilongjiang Prov ince[J]. J4, 2008, 16(6): 22-26.

参考文献

[ 1 ] 和政军,李锦轶,莫申国,等. 漠河前陆盆地砂岩岩石地球化学的构造背景和物源区分析[ J ]. 中国科学(D 辑) ,2003, 33 (12) : 1219-1226.

[ 2 ] 武广,孙丰月,赵财胜,等. 额尔古纳地块北缘早古生代后碰撞花岗岩的发现及其地质意义[ J ]. 科学通报, 2005, 50(20) : 2278-2288.

[ 3 ] 王晓勇,梁海军,金同和,等. 黑龙江省漠河推覆构造特征及其与金成矿的关系[ J ]. 大地构造与成矿学, 2008, 32(2) : 218-225.

[ 4 ] 齐金忠,李莉,郭晓东. 大兴安岭北部砂宝斯蚀变砂岩型金矿地质特征[ J ]. 矿床地质, 2000, 19 (2) : 116-124.

[ 5 ] 宋丙剑,赵春荣,王晓勇,等. 大兴安岭额尔古纳成矿带特征及金成矿条件探讨[ J ]. 黄金科学技术, 2007, 15 ( 6) :17-23.

[ 6 ] 王晓勇,贾伟光,张春辉,等. 黑龙江砂宝斯金矿床成矿物理化学环境研究. 黄金, 2005, 26 (2) : 8-11.

[ 7 ] 武广,孙丰月,朱群,等. 上黑龙江盆地金矿床地质特征及成因探讨[ J ]. 矿床地质, 2006, 25 (3) : 215-230.

[ 8 ] 权恒,武广,张炯飞. 得尔布干成矿带新类型金矿及资源潜力[ J ]. 贵金属地质, 1998, 7 (4) : 302-303.

[ 9 ] 王献忠,舒本耀,梁海军,等. 大兴安岭北部砂宝斯金矿床控矿因素及成因[ J ]. 黄金地质, 2003, 9 (3) : 45-48.

[ 10 ] 贾国志,梁海军,赵春荣,等. 中国北方兴蒙—吉黑地槽金成矿地质条件及矿床地质特征[ C ] //中国地质学会编.“九五”全国地质科技重要成果论文集. 北京:地质出版社, 2000: 221-229.

[ 12 ] 姚风良,孙丰月. 矿床学教程[M ]. 北京:地质出版社,2006: 109-118.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

[1]	王明燕,王建国 ,祁小军. 河北大西沟金矿地质特征与成因探讨[J]. J4, 2008, 16(6): 27-31.
[2]	郭彬,李威,刘自成,班峻魁,刘帅. 曹家埠金矿床构造控矿规律与找矿预测[J]. J4, 2008, 16(6): 32-35.
[3]	王青山. 小宛南山金矿集中区控矿因素及找矿方向[J]. J4, 2008, 16(1): 28-34.
[4]	张志国,胡军海 ,刘涛. 大兴安岭中段旁开门金银矿地质特征及找矿标志[J]. J4, 2008, 16(1): 43-47.
[5]	王瑞山. 辽东地区砂金矿成矿地质条件研究[J]. J4, 1999, 7(3): 26-31.