Alaska's mineral resources 2015: Ready for a rebound (presentation): Association for Mineral Exploration British Columbia Mineral Exploration Roundup, January 25 - 28, 2016

Mineral resources are used in large quantities than ever before because they are fundamental to our modern society. To this front and facing an up-scaling challenge, the EIT Raw-Materials funded project SIT4ME (Seismic Imaging Techniques for Mineral Exploration) was launched involving several European institutions. As part of the project, a dense multi-method seismic dataset was acquired in the Zinkgruvan mining area at the Bergslagen mineral district of Sweden, which hosts one of the largest volcanic-hosted massive sulphide (VMS) deposits in the country.In November 2018, a dense multi-method seismic dataset was acquired in the Zinkgruvan mining area, in a joint collaborative approach among Swedish, Spanish and German partners. A combination of sparse 3D grid and dense 2D profiles in an area of approximately 6 km2 was acquired using a 32t seismic vibrator (10-150 Hz) of TU Bergakademie Freiberg, enabling reasonable pseudo-3D sub-surface illumination. For the data acquisition, a total of approximately 1300 receiver positions (10-20 m apart), using different recorders, and 950 source positions were surveyed. All receivers were active during the data acquisition allowing a combination of 2D and semi-3D data to be obtained for various imaging and comparative studies. The main objective of the study, apart from its commercial-realization approach, was also to provide information useful for deep-targeting and structural imaging in this complex geological setting. The main massive-sulphide bearing horizon, Zinkgruvan formation, is strongly reflective as correlated with the existing boreholes in the mine. Careful analysis of the seismic sections suggests a dominant northeast-dipping structure, consistent with the general plunge of the main Zinkgruvan fold that has been suggested in the area.Acknowledgements: EIT-RawMaterials is gratefully thanked for funding this up-scaling project 17024.

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The thickness of Neogene and Quaternary cover across the central Interior Plateau, British Columbia: analysis of water-well drill records and implications for mineral exploration potential1This article is one of a series of papers published in this Special Issue on the theme of New insights in Cordilleran Intermontane geoscience: reducing exploration risk in the mountain pine beetle-affected area, British Columbia. 2Geological Survey of Canada (GSC) Contribution 20100036; Mineral Deposit Research Unit (MDRU, Department of Earh and Ocean Sciences, The University of British Columbia) Contribution p-261.

Canadian Journal of Earth Sciences ◽

10.1139/e10-080 ◽

2011 ◽

Vol 48 (6) ◽

pp. 973-986 ◽

Cited By ~ 10

Author(s):

Graham D.M. Andrews ◽

Alain Plouffe ◽

Travis Ferbey ◽

James K. Russell ◽

Sarah R. Brown ◽

...

Keyword(s):

British Columbia ◽

Mountain Pine Beetle ◽

Mineral Exploration ◽

Three Dimensional ◽

Research Unit ◽

Mineral Deposit ◽

Basic Knowledge ◽

Data Sets ◽

University Of British Columbia ◽

Water Well

Analysis of over 10 000 water-well records has been used to produce new depth-to-bedrock maps for areas around five cities on the central Interior Plateau of central British Columbia: 100 Mile House, Prince George, Quesnel, Vanderhoof, and Williams Lake. Hitherto, exploration for mineral and hydrocarbon resources has been hampered by a lack of basic knowledge of the thickness of Neogene and Quaternary lithologies. Interpretation of these new maps provides first-order constraints on the localization of thick drift in pre-Late Wisconsinan bedrock paleovalleys, some of which are now buried. Basalt lavas of the Chilcotin Group are restricted to erosional remnants of previously extensive sheets emplaced onto an older peneplain. Our results confirm that the Neogene and Quaternary cover is primarily controlled by paleotopography and is generally thin and patchy across much of the region. Increased understanding of the three-dimensional distribution of cover produces a corresponding increase in the utility of geological, geochemical, and geophysical exploration techniques, and a reduction in the risk for future mineral exploration activities, especially when combined with more sophisticated data sets.

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Application of the Fine-Grained Soil Prospecting Method in Typical Covered Terrains of Northern China

Minerals ◽

10.3390/min11121383 ◽

2021 ◽

Vol 11 (12) ◽

pp. 1383

Author(s):

Hanliang Liu ◽

Bimin Zhang ◽

Xueqiu Wang ◽

Zhixuan Han ◽

Baoyun Zhang ◽

...

Keyword(s):

Mineral Exploration ◽

Mineral Resources ◽

Northern China ◽

Gobi Desert ◽

Test Results ◽

Fine Grained ◽

Ore Body ◽

Ore Bodies ◽

Fine Grained Soil ◽

Body Location

In recent years, mineral resources near the surface are becoming scarce, causing focused mineral exploration on concealed deposits in covered terrains. In northern China, covered terrains are widespread and conceal bedrock sequences and mineralization. These represent geochemical challenges for mineral exploration in China. As a deep-penetrating geochemical technology that can reflect the information of deep anomalies, the fine-grained soil prospecting method has achieved ideal test results in arid Gobi Desert covered terrain, semi-arid grassland covered terrain, and alluvium soil covered terrain of northern China. The anomaly range indicated by the fine-grained soil prospecting method is very good with the known ore body location. The corresponding relationship can effectively indicate deep ore bodies and delineate anomalies in unknown areas. Overall, the fine-grained soil prospecting method can be applied to geochemical prospecting and exploration in covered terrains.

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Mineral resources of Terrace area, Coast District, British Columbia

10.4095/101122 ◽

1936 ◽

Author(s):

E D Kindle

Keyword(s):

British Columbia ◽

Mineral Resources

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Mineral resources, Hazelton and Smithers areas, Cassiar and Coast districts, British Columbia

10.4095/313546 ◽

1940 ◽

Author(s):

E D Kindle

Keyword(s):

British Columbia ◽

Mineral Resources

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Metallogenic Features Modeling and Deep Mineral Exploration of Laochang Ore Field in Ge Jiu

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1022.7 ◽

2014 ◽

Vol 1022 ◽

pp. 7-13

Author(s):

Zhao Wu ◽

Jian Ping Chen ◽

Meng Long Xu

Keyword(s):

Chemical Elements ◽

3D Visualization ◽

Mineral Exploration ◽

Mineral Resources ◽

Controlling Factors ◽

Predicting Model ◽

Model Method ◽

Ore Bodies ◽

Weight Method ◽

Visualization Technology

By analyzing metallogenic regulation of the deep skarn ore bodies in Laochang ore field,3D metallogenic features model was established with 3D visualization technology. With “the cubic predicting model” method, the major ore-controlling factors in deep include granites, strata, faults and chemical elements abnormal. We delineated prospect area and outlined ten targets through evidence weight method. Calculating the ore-containing probabilities and the quantities of mineral resources ,it realized prediction of mineral resources on quantity, position and probability. It is important for deep mineral exploration of Laochang ore field in Ge jiu.

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The Rock Physical Property Database of British Columbia, and the distinct petrophysical signature of the Chilcotin basalts,

Canadian Journal of Earth Sciences ◽

10.1139/cjes-2013-0159 ◽

2014 ◽

Vol 51 (4) ◽

pp. 327-338 ◽

Cited By ~ 1

Author(s):

Randolph J. Enkin

Keyword(s):

British Columbia ◽

Magnetic Susceptibility ◽

Physical Properties ◽

Mineral Exploration ◽

Physical Property ◽

Bimodal Distribution ◽

Magnetic Survey ◽

Survey Analysis ◽

Magnetic Remanence ◽

Geophysical Surveys

Rock physical properties provide the link between geophysical surveys and their geological interpretation. The British Columbia rock physical properties database, compiled by the Geological Survey of Canada, now comprises 3876 values of density, 930 values of electric resistivity, 12 356 values of magnetic susceptibility, and 2576 values of magnetic remanence and Koenigsberger ratio. The measurements are linked to sample locations, lithologies, and geological formation or unit. Maps, histograms, and biplots are used to demonstrate useful links between lithology and physical properties, and serve as a background for future rock physical properties studies. As expected, density and resistivity are controlled mostly by porosity and mineralogy. Magnetic susceptibility has a bimodal distribution (maxima at 4 × 10−4 and 2 × 10−2 SI) controlled by magnetite concentration. Magnetic remanence is shown to be more important than usually considered in magnetic survey analysis, with Koenigsberger ratios greater than unity in 42% of the samples. A case study of the Chilcotin Group basalts is highlighted, as they form a significant barrier to mineral exploration in central British Columbia. These rocks are magnetically distinct from other basalts in British Columbia, distinguished by magnetic susceptibilities having a range of values concentrated around 3 × 10−3 SI and falling in the valley between the two susceptibility modes. These basalts are also characterized by very high Koenigsberger ratios (96% above unity), probably caused by a preponderance of fine-grained single-domain magnetite. The database provides a wealth of petrophysical properties that can help constrain analysis of several types of geophysical surveys and, in particular, modelling of anomalies in the quest to determine the three-dimensional distribution of rock units.

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