MufuJiuling district is an important placer gold producing land since the ancient time. In recent years, some primary gold deposits and mineralizations, e. g., Huangjindong and Tulongshan gold deposits, have been foun...MufuJiuling district is an important placer gold producing land since the ancient time. In recent years, some primary gold deposits and mineralizations, e. g., Huangjindong and Tulongshan gold deposits, have been found. But the metallogenic conditions and regularities as well as the oreprospecting future remain to be recognized. Through the study on the metallogenic background and condition, the auriferous source bed and the mineralizing characteristics, three types of primary gold deposits are confirmed to be prospective in this district and some key problems about their prospecting and evaluating are put forward.展开更多
地球区别于其它类地行星的重要特征在于其独特的长英质大陆地壳组成。作为全球规模最大的增生型造山带,中亚造山带为揭示大陆地壳的生长演化过程和机制提供了关键研究场所。该造山带东段广泛发育的多期次花岗质岩体,因其显著高的正εNd...地球区别于其它类地行星的重要特征在于其独特的长英质大陆地壳组成。作为全球规模最大的增生型造山带,中亚造山带为揭示大陆地壳的生长演化过程和机制提供了关键研究场所。该造山带东段广泛发育的多期次花岗质岩体,因其显著高的正εNd(t)值和低的初始^(87)Sr/^(86)Sr(ISr)值特征,被视为显生宙地壳生长的重要证据(Jahn et al.,2000;Wu Fuyuan et al.,2000)。展开更多
文摘MufuJiuling district is an important placer gold producing land since the ancient time. In recent years, some primary gold deposits and mineralizations, e. g., Huangjindong and Tulongshan gold deposits, have been found. But the metallogenic conditions and regularities as well as the oreprospecting future remain to be recognized. Through the study on the metallogenic background and condition, the auriferous source bed and the mineralizing characteristics, three types of primary gold deposits are confirmed to be prospective in this district and some key problems about their prospecting and evaluating are put forward.
文摘地球区别于其它类地行星的重要特征在于其独特的长英质大陆地壳组成。作为全球规模最大的增生型造山带,中亚造山带为揭示大陆地壳的生长演化过程和机制提供了关键研究场所。该造山带东段广泛发育的多期次花岗质岩体,因其显著高的正εNd(t)值和低的初始^(87)Sr/^(86)Sr(ISr)值特征,被视为显生宙地壳生长的重要证据(Jahn et al.,2000;Wu Fuyuan et al.,2000)。
