摘要
新疆索尔库都克铜(钼)矿床产在准噶尔微型板块北缘的吉木乃—喀拉通克晚古生代沟弧带内,主要出露泥盆系地层。矿体产于中泥盆统北塔山组第二亚组第二岩段内,主要岩石为凝灰砂岩和安山玢岩等。区内富含Cu,Mo元素的岩浆热液沿索尔库都克阔腊背斜及与其同时形成的裂隙构造运移,使地层岩石经受了不同程度的变质作用和围岩蚀变,进而形成了不完全对称分布的矽卡岩带。铜(钼)矿体严格受该褶皱构造和变质作用控制。笔者在总结区域地质背景基础上,通过对矿区地层单元、构造展布、岩浆热液活动及变质作用等特征研究,分析其控矿因素,进而总结矿体赋存规律和找矿标志,确定了北塔山组第二亚组地层、索尔库都克阔腊背斜及与其同时形成的裂隙构造和变质作用形成的矽卡岩带是开展下一步找矿工作紧紧围绕的三大要素,并由此建立了地质找矿模型。
Xinjiang Sor Kuduk Copper（ molybdenum） deposit is located in Jimunai-Kalatongke late Paleozoic trench arc zone that is on the margin of Junggar micro plate margin. Its main stratums belong to Devonian System.Its ore bodies are in the second rock section of the second sub group of Beitashan group of Middle Devonian. Its main lithologies are tufaceous sandstone and andesitic porphyrite. The magmatic hydrothermal solution that plentifully contains Cu and Mo,migrated along Sor Kuduk La anticline and fractures that were formed in the same time,made the rock of the stratum to undergo all kinds of different levels of metamorphism and the wall rock alteration;made the skarn zone were incompletely symmetrical formed. Its ore bodies are controlled by the fold structure and metamorphism. Base on the regional geological background and study of the stratigraphic unit,the distribution of the structural,the activity of the magmatic hydrothermal and the metamorphism and so on,the author analyses its ore controlling factors and summarizes the occurrence regularity of orebody and prospecting marks; clear and definite the three next step prospecting elements that are stratum of the second sub group of Beitashan group,Sor Kuduk La anticline and fractures that were formed in the same time and the skarn zone that are formed by metamorphism. In the end,the geological prospecting model is built.
出处
《东华理工大学学报（自然科学版）》
CAS
2015年第1期64-69,共6页
Journal of East China University of Technology(Natural Science)
关键词
地质特征
控矿因素
赋存规律
新疆索尔库都克铜(钼)矿
geologic feature ore-controlling factors occurrence regularity Xinjiang Sor Kuduk copper（molybdenum） deposit
