我国探明千吨级超大型金矿床 辽宁大东沟金矿探明金矿石量25.86亿吨

Core Insights - The Dadonggou gold mine in Liaoning Province has been successfully identified as China's first thousand-ton, low-grade super-large gold deposit, with significant economic benefits anticipated [1] Group 1: Project Overview - The Dadonggou gold mine is the largest single gold deposit discovered since the founding of New China, with a proven gold ore volume of 2.586 billion tons and a gold metal content of 1,444.49 tons, averaging 0.56 grams per ton [1] - This mine is recognized as another super-large low-grade open-pit gold mine following the large open-pit mining areas in the northern margin of the North China Craton and the exhausted mining areas in western Zhejiang and western Fujian [1] Group 2: Technological Innovations - The project successfully installed variable frequency devices in the phyllite region for the first time, achieving dynamic control based on rock hardness, drilling speed, and pressure [1] - Comprehensive application of 3D modeling technology has been utilized to demonstrate the mineral body’s occurrence state, setting a precedent for "short cycle, high quality" gold exploration in China [1] Group 3: Strategic Implications - The implementation of this project further solidifies the national strategic reserve of gold resources and provides a successful example for deep and peripheral exploration of existing resource bases [1]