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Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium

Maxime Evrard, Gaël Dumont, Thomas Hermans (UGent) , Michel Chouteau, Olivier Francis, Eric Pirard and Frédéric Nguyen
(2018) MINERALS. 8(6).
Author
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Abstract
The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface. The localisation of the lodes makes them excellent targets for further exploration with geophysics. This deposit is classified as a Mississippi Valley Type (MVT) deposit. It consists mainly of Pb-Zn-Fe sulphides that display contrasting values in resistivity, chargeability, density, and magnetic susceptibility, with regards to the sedimentary host rocks. The dipole-dipole direct current (DC) resistivity and induce polarization (IP) profiles have been collected and inverted to successfully delineate the Pb-Zn mineralization and the geological structures. Short-spacing EM34 electromagnetic conductivity data were collected mainly on the top of Poppelsberg East lode and have revealed a conductive body matching with the geologically modelled mineralization. Gravity profiles have been carried out perpendicularly to the lode orientation; they show a strong structural anomaly. High resolution ground magnetic data were collected over the study area, but they showed no anomaly over the ore deposits. The geophysical inversion results are complementary to the model based on drill information, and allow us to refine the delineation of the mineralization. The identification of the geophysical signatures of this deposit permits targeting new possible mineralization in the area.
Keywords
geophysics, exploration, ERT, IP, gravity, magnetometry, MVT deposit, Lontzen, Belgium, DC RESISTIVITY, HISTORY

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MLA
Evrard, Maxime, et al. “Geophysical Investigation of the Pb-Zn Deposit of Lontzen-Poppelsberg, Belgium.” MINERALS, vol. 8, no. 6, 2018, doi:10.3390/min8060233.
APA
Evrard, M., Dumont, G., Hermans, T., Chouteau, M., Francis, O., Pirard, E., & Nguyen, F. (2018). Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium. MINERALS, 8(6). https://doi.org/10.3390/min8060233
Chicago author-date
Evrard, Maxime, Gaël Dumont, Thomas Hermans, Michel Chouteau, Olivier Francis, Eric Pirard, and Frédéric Nguyen. 2018. “Geophysical Investigation of the Pb-Zn Deposit of Lontzen-Poppelsberg, Belgium.” MINERALS 8 (6). https://doi.org/10.3390/min8060233.
Chicago author-date (all authors)
Evrard, Maxime, Gaël Dumont, Thomas Hermans, Michel Chouteau, Olivier Francis, Eric Pirard, and Frédéric Nguyen. 2018. “Geophysical Investigation of the Pb-Zn Deposit of Lontzen-Poppelsberg, Belgium.” MINERALS 8 (6). doi:10.3390/min8060233.
Vancouver
1.
Evrard M, Dumont G, Hermans T, Chouteau M, Francis O, Pirard E, et al. Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium. MINERALS. 2018;8(6).
IEEE
[1]
M. Evrard et al., “Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium,” MINERALS, vol. 8, no. 6, 2018.
@article{8562991,
  abstract     = {{The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface. The localisation of the lodes makes them excellent targets for further exploration with geophysics. This deposit is classified as a Mississippi Valley Type (MVT) deposit. It consists mainly of Pb-Zn-Fe sulphides that display contrasting values in resistivity, chargeability, density, and magnetic susceptibility, with regards to the sedimentary host rocks. The dipole-dipole direct current (DC) resistivity and induce polarization (IP) profiles have been collected and inverted to successfully delineate the Pb-Zn mineralization and the geological structures. Short-spacing EM34 electromagnetic conductivity data were collected mainly on the top of Poppelsberg East lode and have revealed a conductive body matching with the geologically modelled mineralization. Gravity profiles have been carried out perpendicularly to the lode orientation; they show a strong structural anomaly. High resolution ground magnetic data were collected over the study area, but they showed no anomaly over the ore deposits. The geophysical inversion results are complementary to the model based on drill information, and allow us to refine the delineation of the mineralization. The identification of the geophysical signatures of this deposit permits targeting new possible mineralization in the area.}},
  articleno    = {{233}},
  author       = {{Evrard, Maxime and Dumont, Gaël and Hermans, Thomas and Chouteau, Michel and Francis, Olivier and Pirard, Eric and Nguyen, Frédéric}},
  issn         = {{2075-163X}},
  journal      = {{MINERALS}},
  keywords     = {{geophysics,exploration,ERT,IP,gravity,magnetometry,MVT deposit,Lontzen,Belgium,DC RESISTIVITY,HISTORY}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{22}},
  title        = {{Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium}},
  url          = {{http://dx.doi.org/10.3390/min8060233}},
  volume       = {{8}},
  year         = {{2018}},
}
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