物探与化探Issue(2)：262-267,6.DOI:10.11720/wtyht.2015.2.08
十五里桥金矿区物化探异常特征及应用
The effect of applying geophysical and geochemical anomalies to the Shiwuliqiao gold deposit in Heilongjiang Province
摘要
Abstract
Located on the southern margin of upper Heilongjiang foreland basin, the Shiwuliqiao gold deposit was discovered in recent years though checking the small⁃scale geochemical anomaly by integrated geophysical and geochemical methods . The soil geochemical survey suggests that Au, which is characterized by high content, higher coefficient of variations and obvious local concentration, is the main ore-forming element. Besides, Au element anomaly is a direct indicator for prospecting, whereas element anomalies of As, Sb, Cu, Bi can be used as indirect indicators in prospecting. An analysis of the electromagnetic field and anomalies show that many sets of NNE-striking concealed faults are characterized by high magnetism, low resistivity, and medium⁃low polarization, caused probably by filling of dikes. The NE—NEE ore⁃controlling structures exhibit high resistivity and high polarization, and their intersections with NNE trending faults display better gold mineralization. The discovery of the Shiwuliqiao gold deposit suggests that geophysical and geochemi⁃cal methods are effective means in search for gold and polymetallic deposits in northern areas of marsh landscape in the Da Hinggan Mountains.关键词
化探异常/十五里桥金矿区/高精度磁测/激电中梯/找矿标志/森林沼泽景观区/多金属矿Key words
geochemical exploration/Shiwuliqiao gold deposit/high-precision magnetic survey/IP intermediate gradient/ore-prospec-ting indicator/forest-swamp landscape/polymetallic deposit分类
天文与地球科学引用本文复制引用
张富程,杨言辰,李向文,江秉忠..十五里桥金矿区物化探异常特征及应用[J].物探与化探,2015,(2):262-267,6.基金项目
武警黄金指挥部黄金工作专项（2011－1301）；中国地质调查局地质大调查项目 （）
