Passive airborne EM and Ground IP\Resistivity results over the Romero intermediate sulphidation epithermal gold deposits, Dominican Republic

Jean M. Legault; Jeremy Niemi; Jeremy Brett; Shengkai Zhao; Zihao Han; Geoffrey Plastow

doi:10.1071/ASEG2015ab178

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Passive airborne EM and Ground IP\Resistivity results over the Romero intermediate sulphidation epithermal gold deposits, Dominican Republic
Authors Jean M. Legault^a, Jeremy Niemi^b, Jeremy Brett^c, Shengkai Zhao^d, Zihao Han^e and Geoffrey Plastow^f
View Affiliations Hide Affiliations

^a Geotech Ltd, 245 Industrial Parkway N. Aurora, , Canada, L4G 4C4, [email protected] ^b GoldQuest Mining Corp., 155 Wellington St. W., Suite 2920 Toronto, , Canada, M5V 3H1, [email protected] ^c MPH Consulting Inc., 133 Richmond St. W, Suite 501 Toronto, , Canada, M5H 2L3, [email protected] ^d Geotech Ltd, 245 Industrial Parkway N. Aurora, , Canada, L4G 4C4, [email protected] ^e Geotech Ltd, 245 Industrial Parkway N. Aurora, , Canada, L4G 4C4, [email protected] ^f Geotech Ltd, 245 Industrial Parkway N. Aurora, , Canada, L4G 4C4, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2015ab178
- Published online: 01 Dec 2015

Abstract

The Romero gold copper zinc silver deposits are located in the Province of San Juan, Dominican Republic, approximately 165 km west-northwest of Santo Domingo. Romero and Romero South orebodies contain stratabound gold mineralization with copper, silver and zinc of intermediate sulphidation epithermal style. The gold mineralization is associated with disseminated to semi-massive sulphides, sulphide veinlets and quartz-sulphides within quartz-pyrite, quartz-illite-pyrite and illite-chlorite-pyrite alteration.

Ground DC resistivity and induced polarization (DCIP) supported by ground magnetics remain the main targeting tools for drill follow-up along with geologic mapping and geochemistry. However ZTEM passive airborne electromagnetics have recently also been applied with success for reconnaissance mapping of deep alteration and increased porosity regionally.

Our case-study compares ground DCIP and airborne EM-magnetic geophysical responses, supported by 3D inversions, over the known Romero and Romero South Au-Cu-Zn-Ag intermediate sulphidation deposit area.

Article metrics loading...

/content/journals/10.1071/ASEG2015ab178

2015-12-01

2026-01-20

From This Site

/content/journals/10.1071/ASEG2015ab178

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Edwards, L.S., 1977, A modified pseudo section from resistivity and IP: Geophysics, 42, 1020-1036.
Goldie, M.K., 2000, A geophysical case history of the Yanacocha gold district, northern Peru: SEG Expanded Abstracts, 750-753, doi: 10.1190/1.1816178.
Hennessey, B.T., San Martin, A.J., Gowans, R.M., Dreesbach, C., and Jacobs, C., 2013, Preliminary economic assessment (PEA) for the Romero project, Tireo property, Province of San Juan, Dominican Republic: NI 43-101 technical report for GoldQuest Mining Corp. by Micon International Ltd., 233 p.
Holtham, E. and Oldenburg, D.W., 2008, Three-dimensional forward modelling and inversion of Z-TEM data: SEG Expanded Abstracts, 564-568.
Kwan, K., Prikhodko, A., Legault, J.M., Plastow, G., Kapetas, J. and Druecker, M., 2014, VTEM airborne EM, aeromagnetic and gamma-ray spectrometric data over the Cerro Quema high sulphidation epithermal gold deposits, Panama: submitted to ASEG-PESA 2015.
Labson, V. F., A. Becker, H.F. Morrison, and U. Conti, 1985. Geophysical exploration with audio-frequency natural magnetic fields: Geophysics, 50, 656-664.
Legault, J.M., S. Zhao, and R. Fitch, 2012a, ZTEM airborne AFMAG survey results over low sulphidation epithermal gold-silver vein systems at Gold Springs, south eastern Nevada: ASEG Extended Abstracts, 4 p.
Legault, J.M., Wilson G., Gribenko A., Zhdanov, M. S., Zhao, S. and Fisk, K., 2012b, An overview of the ZTEM and AirMt airborne electromagnetic systems - A case study from the Nebo-Babel Ni-Cu-PGE deposit, West Musgrave, Western Australia: Preview, 158, 26-32.
Li, Y., and Oldenburg, D.W., 1996, 3-D inversion of magnetic data, Geophysics, 61, 394-408.
Passive AEM and IP\Resistvity over Romero Epithermal Gold-Cu Deposit Legault, Niemi, Brett, Zhao, Han & Plastow
Lo, B., and M. Zang, 2008, Numerical modeling of Z-TEM (airborne AFMAG) responses to guide exploration strategies: SEG Expanded Abstracts, 1098-1101.
Niemi, J., 2014, Developing resources in and above the ground - Gold and copper development in the Dominican Republic : GoldQuest corporate presentation, June-2014 (www. go ldquest.com).
Pawluk, C., 2014, Insight survey description: personal communication, 6 p.
Silitoe, R.H., 2013, Comments on Geology and Exploration of the Romero Gold-Copper Prospect and Environs, Las Tres Palmas Project, Dominican Republic: Report for GoldQuest Mining Corp., 9 p., (www. go ldquest.com).
Taylor, B.E., 2007, Epithermal gold deposits, in Goodfellow, W.D., ed., Mineral Deposits of Canada: A Synthesis of Major Deposit-Types, District Metallogeny, the Evolution of Geological Provinces, and Exploration Methods: Geological Association of Canada, Mineral Deposits Division, Special Publication No. 5, p. 113-139.
Telford, W.M., Geldart, L.P., and Sheriff, R.E., 1990, Applied Geophysics, Second Edition: Cambridge University Press.

/content/journals/10.1071/ASEG2015ab178

Article Type: Research Article

Keyword(s): 3D inversion; airborne; EM; epithermal; gold; IP\Resistivity; Passive

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa Passive airborne EM and Ground IP\Resistivity results over the Romero intermediate sulphidation epithermal gold deposits, Dominican Republic

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed