this paper describes the application of approximate methods to invert airborne magnetic data as well as helicopter-borne frequency domain electromagnetic data in order to retrieve a joint model of magnetic susceptibility and electrical resistivity. the study area located in semnan province of iran consists of an arc-shaped porphyry andesite covered by sedimentary units which may have potential ...

The Toodoggone-McConnell Project was inititated in 1996 to map and evaluate a tract of Early Jurassic plutons and surrounding arc volcanic successions of Paleozoic to Jurassic age for base and precious metal mineralization. Bedrock mapping during the first year of the program focussed on a region south of the Finlay River and east of Thutade Lake, documenting local geology near known copper-gol...

The southern part of Skull Valley has potential for shallowly buried mineral deposits. The most likely deposit type is either skarn/porphyry copper deposits, perhaps with surrounding polymetallic lead-zinc-silver replacement deposits or "distal disseminated" gold-silver deposits. The area (1) is structurally complex with both thrust and high-angle faults, (2) contains lithologic units favorable...

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Porphyry deposits are the dominant sources of copper and major several base precious metals. They commonly formed via repeated emplacement hydrous magmas associated fluid exsolution. As a result, mineralized hydrothermal veins may undergo multiple deposition reopening processes that not fully accounted for by existing models. The Tongchang porphyry Cu deposit is rare example being related to si...

The Cerro Quema Au-Cu deposit is hosted by a dacite dome complex of the Río Formation, Late Campanian-Maastrichtian volcano-sedimentary sequence Panamanian magmatic arc. Its formational age constrained at ~49 Ma field evidences, crosscutting relationships and 40Ar/39Ar geochronology (Corral et al., 2016, Corral, 2021). recent molybdenite Re-Os dates Perelló al. (2020) claim that ore spatially t...

metres north of Stewart, British Columbia. Reserves calculated in 1989 by the previous owner, Western Canadian Mining Corporation. are 66 million tonnes averaging 0.8 per cent copper and 0.33 gram per tonne gold using a 0.5 per cent copper cut off, Access to the deposit is by helicopter from Tide Lake airstrip 50 kilometres north of Stewart. The deposit was diamond drilled extensively by West...