Geophysical signatures of the gold rich porphyry copper deposits: A ...
Integrating and evaluating the geophysical processes with the result of preliminary drillings indicated that in the Dalli Cu-Au porphyry deposit, the zones with positive and strong magnetic anomalies, high to moderate chargeability and high conductivity, are associated with copper and gold mineralization.
Magnetic effects of hydrothermal alteration in porphyry copper …
2014年6月11日 · This paper reviews the effects of hydrothermal alteration on magnetic properties and magnetic signatures of porphyry copper and iron oxide copper–gold systems and presents examples of predictive magnetic exploration models, and their predicted signatures, in various geological circumstances.
A semi-detailed ground magnetic survey was completed over the Beutong Prospect in March 1997, by PT. Geoservices, along 200m spaced lines with a 12.5 metre station interval. The ground magnetic results supported the interpretation of the airborne magnetics and helped to define the main porphyry intrusive. The ground magnetic pattern also helped ...
Identifying tectonic settings of porphyry copper deposits using …
2024年8月1日 · Porphyry copper deposits (PCDs), as main sources of Cu resources worldwide, have attracted great attention for both scientific research and mining purposes in the past decades. The formation of PCDs is closely related to magmatic-hydrothermal system formed in both (continental/oceanic) arc and non-arc environments.
(PDF) Linking Porphyry Deposit Geology to Geophysics via …
2013年12月17日 · Physical rock properties of alteration zones related to porphyry copper-gold deposits. Magnetic susceptibility, density, resistivity, and chargeability are compared to mineralogy and rock...
Aeromagnetic Signature of Porphyry Copper Systems in Northern …
2001年3月1日 · We propose that the transverse magnetic anomalies are the magnetic response to the loci of emplacement of intrusive bodies of batholithic size along paths of the advancing magmatic front of the active continental margin.
Geophysical exploration and geological appraisal of the Siah Diq ...
Induced polarization (IP), ground magnetic, and gravity surveys are the widely used geophysical methods to discover and further characterize subsurface porphyry copper alteration systems and associated sulfide mineralization in three dimensions [7,8,9,10]. This contribution describes one such opportunity of discovery of the hidden Siah Diq ...
Sparse 3D seismic and magnetic imaging at Escondida porphyry copper ...
2021年2月1日 · We show results of a low-cost seismic survey over the Escondida porphyry copper deposit. The results show that low-cost 3D acquisition can improve structural understanding of established porphyry deposits and that there is potential for 3D seismic to be applied in brownfield and perhaps even greenfield exploration.
Geophysical data provide three dimensional insights into porphyry ...
2022年11月22日 · New airborne electromagnetic and magnetic survey data are integrated with previous alteration mapping and porphyry models to show the subsurface geophysical response of shallow to deep levels of the porphyry system. Qualitative map views show lateral changes in the magnetization and resistivity of the hydrothermally altered rocks.
ZTEM survey. Geology and the results of an AeroTEM EM (Rudd and Sterritt 2010) and magnetic survey covering part of the property are available to help assess the ZTEM results. Figure 9 shows the outline of the ZTEM and AeroTEM surveys and the local geology with the Morrison and Hearne Hill intrusives as well as highlighting the major faults. The