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TitleThe Bathurst Mining Camp, New Brunswick: data integration, geophysical modelling, and implications for exploration
AuthorUgalde, H; Morris, W A; van Staal, C
SourceGeophysics applied to mineral exploration; by Pinet, N (ed.); Pilkington, M (ed.); McCuaig, M (ed.); Canadian Journal of Earth Sciences vol. 56, no. 5, 2018 p. 433-451,
Alt SeriesNatural Resources Canada, Contribution Series 20190111
PublisherCanadian Science Publishing
Mediapaper; on-line; digital
File formatpdf (Adobe® Reader®); html
ProvinceNew Brunswick
NTS21O/01; 21O/02; 21O/07; 21O/08; 21O/09; 21O/10; 21O/15; 21O/16; 21P/04; 21P/05; 21P/12; 21P/13
Lat/Long WENS -67.0000 -65.5000 48.0000 47.0000
Subjectseconomic geology; geophysics; structural geology; Science and Technology; mineral deposits; mineral exploration; volcanogenic deposits; sulphide deposits; geophysical interpretations; gravity interpretations; gravity anomalies; magnetic interpretations; radiometric interpretations; conductivity; modelling; mapping techniques; structural interpretations; bedrock geology; structural features; folds; synforms; antiforms; faults; faults, thrust; lithology; igneous rocks; volcanic rocks; basalts; rhyolites; mafic volcanic rocks; felsic volcanic rocks; ophiolites; intrusive rocks; granites; gabbros; mafic intrusive rocks; sedimentary rocks; siltstones; shales; topography; models; remote sensing; radar methods; densities; magnetic susceptibility; Bathurst Mining Camp; Geoscience Data Repository; Nine Mile Synform; Tetagouche Antiform; Flat Landing Brook Formation; Sheephouse Brook Group; Phanerozoic; Paleozoic; Carboniferous; Devonian; Silurian; Ordovician; Cambrian
Illustrationslocation maps; geoscientific sketch maps; tables; models; 3-D models; cross-sections
ProgramTargeted Geoscience Initiative (TGI-3), 2005-2010 Targeted Geoscience Initiative (TGI 3)
Released2018 11 28
AbstractThe Bathurst Mining Camp (BMC) is one of Canada's oldest mining districts for volcanogenic massive sulphide (VMS) deposits. Most of the 46 known deposits were discovered in the 1950s using a combination of geological and geophysical methods. However, renewed exploration efforts over the past 15 years have not been as successful as one would expect given the level of expenditure of the camp. Nevertheless, this has created a large database of high resolution airborne geophysical data (magnetics, electromagnetics, radiometrics, and full tensor gravity gradiometry) which makes Bathurst a unique case. We show data compilation and map view interpretation, followed by two-and-a-half-dimensional (2.5D) gravity and magnetic modelling. From this, we provide constraints on the folded structure of the mafic and felsic volcanic units, and we interpret a large gravity anomaly in the southeast as a possible ophiolite or a dense thick package of basaltic rocks. Finally, we show an example of 3D modelling in the northwestern part of the camp, where we combine map view interpretation with section-based modelling and 3D geophysical inversion.

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