物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
6期
1119-1123
,共5页
小包庄铁矿床%磁异常%小波变换%深部弱低缓异常分离%矿产勘查
小包莊鐵礦床%磁異常%小波變換%深部弱低緩異常分離%礦產勘查
소포장철광상%자이상%소파변환%심부약저완이상분리%광산감사
Xiaobaozhaung iron ore deposit%magnetic anomaly%wavelet transform%separation of weak and low anomalies%mineral ex-ploration
安徽庐枞小包庄铁矿床主矿体位于已知罗河大型铁矿床正下方,埋藏深度达1500~1800 m。应用磁异常指导钻探工程布置,需对罗河(上部)铁矿与小包庄(下部)铁矿引起的磁异常进行分离。通过小波变换多尺度分析方法,较好地分离、提取了深部小包庄铁矿引起的低缓异常,其六阶细节异常指导找矿工程布置,见矿效果较好,从而快速、高效发现了一大型磁铁矿床。实践表明,该方法对于分离深埋藏、具垂向叠加铁矿床磁异常是有效的,可推广应用于同类型铁矿床的找矿勘探工作。
安徽廬樅小包莊鐵礦床主礦體位于已知囉河大型鐵礦床正下方,埋藏深度達1500~1800 m。應用磁異常指導鑽探工程佈置,需對囉河(上部)鐵礦與小包莊(下部)鐵礦引起的磁異常進行分離。通過小波變換多呎度分析方法,較好地分離、提取瞭深部小包莊鐵礦引起的低緩異常,其六階細節異常指導找礦工程佈置,見礦效果較好,從而快速、高效髮現瞭一大型磁鐵礦床。實踐錶明,該方法對于分離深埋藏、具垂嚮疊加鐵礦床磁異常是有效的,可推廣應用于同類型鐵礦床的找礦勘探工作。
안휘려종소포장철광상주광체위우이지라하대형철광상정하방,매장심도체1500~1800 m。응용자이상지도찬탐공정포치,수대라하(상부)철광여소포장(하부)철광인기적자이상진행분리。통과소파변환다척도분석방법,교호지분리、제취료심부소포장철광인기적저완이상,기륙계세절이상지도조광공정포치,견광효과교호,종이쾌속、고효발현료일대형자철광상。실천표명,해방법대우분리심매장、구수향첩가철광상자이상시유효적,가추엄응용우동류형철광상적조광감탐공작。
The Luohe?Xiaobaozhuang iron ore district is located in Lujiang County, Anhui Province. The newly discovered Xi?aobaozhuang ore deposit is buried at the depth of 1 350~1 800 m, 800~1 000 m under the Luohe main orebody. Before drilling engi?neering, it is necessary to separate Luohe magnetic anomaly in the upper part and Xiaobaozhuang magnetic anomaly in the lower part. Through the wavelet multi?scale transform, Xiaobaozhuang magnetic anomaly at the depth was separated and extracted perfectly. The large?size orebody predicted by six?step detailed anomaly was used to guide drilling exploration. The wavelet multi?scale transform can decompose gravity and magnetic anomalies in space at different scales and can effectively separate vertical superposition gravity?magnet?ic anomalies. The results achieved by the authors can be applied to exploration of the same type of iron deposits.