(1. 中南大學(xué) 有色金屬成礦預(yù)測(cè)與地質(zhì)環(huán)境監(jiān)測(cè)教育部重點(diǎn)實(shí)驗(yàn)室，長沙 410083；
2. 中南大學(xué) 地球科學(xué)與信息物理學(xué)院，長沙 410083；
3. 河南省有色金屬地質(zhì)礦產(chǎn)局 第七地質(zhì)大隊(duì)，鄭州 450016；
4. 河南省有色金屬地質(zhì)礦產(chǎn)局 第一地質(zhì)大隊(duì)，鄭州 450016；
5. 河南省有色金屬礦產(chǎn)探測(cè)工程技術(shù)研究中心，鄭州 450016)
摘 要: 崤山地區(qū)位于河南省西部，大地構(gòu)造位置位于華北陸塊南緣，屬于小秦嶺-崤山-熊耳山金-銀-鉬多金屬成礦帶，成礦地質(zhì)條件有利，但找礦效果不明顯。崤山地區(qū)金礦成礦地質(zhì)條件與控礦規(guī)律研究不系統(tǒng)，尚未形成一套完整的成礦理論體系。對(duì)區(qū)內(nèi)金礦進(jìn)行成礦年代、硫同位素、鉛同位素、氫氧同位素和流體包裹體研究。結(jié)果表明：崤山地區(qū)金礦成礦物質(zhì)來源主要為殼幔混合源，以地幔為主；成礦流體為幔源流體、大氣降水和變質(zhì)流體的混合流體；成礦溫度為中低溫(136~379 ℃，平均232 ℃)；成礦鹽度為中等鹽度(0.20%~27%，平均8.22%)；成礦流體密度為低密度(0.65~1.13 g/cm3，平均0.88g/cm3)；成礦流體壓力為5~69 MPa；成礦深度估算為0.43~5.90 km；成礦時(shí)代為燕山晚期。結(jié)合區(qū)內(nèi)金礦的成礦地質(zhì)背景、成礦物質(zhì)來源及控礦規(guī)律的綜合分析，建立研究區(qū)成礦模式。
關(guān)鍵字: 崤山；金礦；控礦規(guī)律；成礦模型
（1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, Central South University, Changsha 410083, China;
2. School of Geoscience and Info-Physics, Central South University, Changsha 410083, China;
3. No.7 Geological Team, Bureau of Nonferrous Metals Geology and Mineral Resources of Henan Province, Zhengzhou 450016, China;
4. No.1 Geological Team, Bureau of Nonferrous Metals Geology and Mineral Resources of Henan Province, Zhengzhou 450016, China;
5. Non-Ferrous Mineral Exploration Engineering Research Center of Henan Province, Zhengzhou 450016, China）
Abstract:The Xiaoshan area is located in the west of Henan Province, China, tectonically located in the southern margin of North China block, belonging to Xiaoqinling-Xiaoshan-Xiong’ershan Au-Ag-Mo polymetallic metallogenic belt. The ore-forming geological conditions are favorable, but the prospecting effect is not obvious. The study of metallogenic geological conditions and ore-controlling rules of gold deposits in Xiaoshan area is not systematic, and the metallogenic theory system is not perfect. Through the research on the metallogenic age, sulfur isotope, lead isotope, hydrogen and oxygen isotope and fluid inclusion, the results show that the metallogenic material of gold deposits in Xiaoshan area is mainly from crust-mantle mixed materials, mainly mantle. The ore-forming fluid is a mixture of mantle derived fluids, meteoric water and metamorphic fluids. The metallogenic temperature is medium low temperature (from 136 ℃ to 379 ℃, with average value of 232 ℃). The salinity of mineralization is moderate salinity (from 0.20% to 27%, with average value of 8.22%). The density of ore-forming fluid is low density (from 0.65 to 1.13 g/cm3, with average value of 0.88 g/cm3). The ore-forming fluid pressure is 5-69 MPa. The metallogenic depth is estimated to be 0.43-5.90 km. The minerogenetic epoch belongs to late Yanshanian. Based on the comprehensive analysis of metallogenic geological background, the metallogenic material source and ore controlling regularity of gold deposits in this area, the metallogenic model of the study area is established.
Key words: Xiaoshan; gold deposit; ore-controlling rule; metallogenic model
