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[1]魏刚锋,聂江涛,辛红刚,等.铧厂沟金矿床北部控矿剪切带 地质特征及金的富集规律[J].地球科学与环境学报,2005,27(04):45-48.
 WEI Gang-feng,NIE Jiang-tao,XIN Hong-gang,et al.Geological Characteristics and Regularity of Gold Enrichment of North Ore-Controlling Ductile Shear Zone in Huachanggou Gold Deposit[J].Journal of Earth Sciences and Environment,2005,27(04):45-48.
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铧厂沟金矿床北部控矿剪切带 地质特征及金的富集规律(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第27卷
期数:
2005年第04期
页码:
45-48
栏目:
出版日期:
2005-11-15

文章信息/Info

Title:
Geological Characteristics and Regularity of Gold Enrichment of North Ore-Controlling Ductile Shear Zone in Huachanggou Gold Deposit
作者:
魏刚锋1聂江涛1辛红刚2姜修道1张振国3袁速成4
1.长安大学地球科学与国土资源学院,西安710054;2.长庆油田指挥部,西安710021; 3.陕西省地质矿产局,西安710054;4.西北有色地质勘查局712总队,陕西咸阳712000
Author(s):
WEI Gang-feng1NIE Jiang-tao1XIN Hong-gang2 JIANG Xiu-dao1ZHANG Zhen-guo3YUAN Su-cheng4
1. School of Earth Sciences and Resources Management, Chang’ an University, Xi’ an 710054, China; 2. Headquarters Changqing Oilfied, Xi’ an 710021, China; 3. Shaanxi Bureau of Geology and Mineral Resources, Xi’ an 710054, China; 4. The 712 Brigade of Ferrous Metal Survey, Xianyang 712000, Shaanxi, China
关键词:
金矿带韧脆性控矿剪切带地质特征富集规律铧厂沟金矿床陕西
Keywords:
gold ore zone ductile-brittle shear zones of ore-controlling geological characteristics regularity of gold enrich- ment Huachanggou gold deposit Shaanxi
分类号:
P613
DOI:
-
文献标志码:
A
摘要:
野外调研和室内分析结果表明,区域韧性剪切带在铧厂沟金矿床非常发育,并经历了右行—左 行—右行多期(次)活动。北部控矿韧脆性剪切带是区域韧性剪切带演化的产物,以左行剪切为主,位于 铁夹树—庙湾北部厚层灰岩的下部。北部金矿带受北部控矿剪切带控制,长度大于1km,厚度约70 cm,从地表延伸至1120m标高,未见尖灭趋势。黄铁矿是该类矿石中最重要的金属矿物。自然金是主 要金矿物,有明金和显微金两种。矿石结构构造较为复杂,集中反映了热液矿床的构造特征。矿带的形 成可划分为热液期和表生期。原生矿石中绝大部分明金、显微金中的包体金和裂隙金都与黄铁矿密切 相关。黄铁矿(Ⅰ)经历了韧脆性变形,因而是金的最佳载体矿物。北部韧脆性剪切带的多期(次)活动, 使金富集成为工业矿体。结合地质特征,预测该矿带可延伸至1120m以下一定深度。
Abstract:
The regional ductile shear zone is well developed in the Huachanggou gold deposit, and it has gone through multi- ple activities from right-handed earlier to left-handed later and then right-handed latest. The North ore-controlling ductile- brittle shear zone, which is the production of the evolution of the regional ductile zone, is located at the bottom of Tiejiashu- Miaowan thick-bedded limestone. The North gold ore zone, with a length of more than 1 km and a thickness about 70 cm,is controlled by North ore-controlling ductile shear zone, and nip-out tendency is not found from the surface to 1 120 m level. Pyrite is the most important metallic mineral in it. Natural gold, which includes phaneric gold and micro-gold, is the major gold mineral. And the micro-gold can be further divided into industion gold, interystal porositional gold and fissure gold. The complex ore structure and the sample structural style indicate the tectonic features of hydrothermal deposit. The forma- tion of ore zone can be divided into hydrothermal stage and supergene stage. Most of the phaneritic gold in protogenous ore, and the inclusion gold and fracture gold in micro-gold ore are closely related to pyrite. It is clear that pyrite has experienced ductile-brittle deformation, and therefore it is the best carrier mineral of gold. Because of multiple activities of North ductile- brittle shear zone, the gold ore bodies are enriched. It is predicted that the ore zone may be discovered below the 1 120 m level.

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备注/Memo

备注/Memo:
[收稿日期]2004-09-20
[基金项目]陕西省黄金管理局科研项目(9801)
[作者简介]魏刚锋(1949-),男,陕西蓝田人,教授,从事构造控矿教学和研究。
更新日期/Last Update: 1900-01-01