NUMERICAL SIMULATION OF THE STRUCTURAL STRESS FIELD OF BEIYA GOLD DEPOSIT

作者：MADeyun GAOZhenmin

摘要：Based on the study about the geological background of Beiya Gold Deposit, numerical simulation was conducted about the three-dimensional structural stress field for Beiya Gold Deposit by applying finite element theory and by employing a linear elasticity model. Results of the simulation indicate that the Beiya syncline is a faulted basin, and a hidden fracture occurs in the west wing of the syncline.Under the action of the EW-trending compressive force, four nearly NS-trending fractures (groups) were generated in the stress stretching areas of the two wings of the syncline, and these fractures constitute favorable tectonic positions for the upward intrusion of porphyry magma and the occurrence of Au-Pb-Zn polymetallic deposits.

发文机构：OpenLaboratoryofOreDepositGeochemistry

关键词：云南鹤庆地区北衙金矿沉积区结构应力场数字模拟分析变形场特性纵向最大应力横向最大应力Beiya gold depositstructural stress fieldnumerical simulation

分类号： P611[天文地球—矿床学][天文地球—地质学]P554[天文地球—构造地质学][天文地球—地质学]