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.

發文機構：OpenLaboratoryofOreDepositGeochemistry

關鍵詞：云南鶴慶地區北衙金礦沉積區結構應力場數字模擬分析變形場特性縱向最大應力橫向最大應力Beiya gold depositstructural stress fieldnumerical simulation

分類號： P611[天文地球—礦床學][天文地球—地質學]P554[天文地球—構造地質學][天文地球—地質學]