Aeromagnetic Surveying with a Rotary-Wing Unmanned Aircraft System: A Case Study from a Zinc Deposit in Nash Creek, New Brunswick, Canada

被引：57

作者：

Cunningham, Michael ^{[1
]}

Samson, Claire ^{[1
]}

Wood, Alan ^{[2
]}

Cook, Ian ^{[2
]}

机构：

[1] Carleton Univ, Dept Earth Sci, Ottawa, ON, Canada

[2] Stratus Aeronaut, 123,3191 Thunderbird Crescent, Burnaby, BC V5A 3G1, Canada

来源：

PURE AND APPLIED GEOPHYSICS | 2018年 / 175卷 / 09期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Unmanned aircraft systems; Magnetics; Airborne surveying; Mineral exploration;

D O I：

10.1007/s00024-017-1736-2

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Unmanned aircraft systems (UASs) have been under rapid development for applications in the mineral exploration industry, mainly for aeromagnetic surveying. They provide improved detection of smaller, deeper and weaker magnetic targets. A traditional system flying an altitude of 100 m above ground level (AGL) can detect a spherical ore body with a radius of similar to 16 m and a magnetic susceptibility of 10(-4) buried at a depth of 40 m. A UAS flying at an altitude of 50 or 2 m AGL would require the radius to be 11 or 5 m, respectively. A demonstration survey was performed using the SkyLance rotary-wing UAS instrumented with a cesium vapour magnetometer in Nash Creek, New Brunswick, Canada. The UAS flew over a zinc deposit featuring three magnetic anomalies. It acquired repeatable data that compared well with upward continuation maps of ground magnetic data. Dykes or faults that are dipping eastward at 25 degrees and are approximately 1.5 m wide fit the observed response of the three anomalies captured on the UAS magnetic data.

引用

页码：3145 / 3158

页数：14

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