Newly released paper discusses MT applications and implications in the Red Lake Greenstone belt following Metal Earth initiative using SPARTAN MT .

Crustal conductivity footprint of the orogenic gold district in the
Red Lake greenstone belt, western Superior craton, Canada
Ademola Q. Adetunji1, Gaetan Launay1, Ian J. Ferguson2, Jack M. Simmons1, Chong Ma1, John Ayer1 and Bruno Lafrance1
1Mineral Exploration Research Centre (MERC), Harquail School of Earth Sciences, Laurentian University, Sudbury, ON P3E2C6, Canada
2Department of Earth Sciences, University of Manitoba, Winnipeg, MB R3T2N2, Canada

ABSTRACT
A magnetotelluric (MT) study across the Red Lake greenstone belt of the western Superior craton, Canada, images a 50-km-long north-dipping conductor (<20 Ω·m) at 20–25 km
depth and subvertical conductors spatially correlated with crustal-scale shear zones and
large orogenic gold deposits. The conductors are interpreted to be the conductivity signature
of the deep crustal source of the auriferous fluids and pathways of the orogenic gold system. The geophysical results, supported by existing geochemical and fluid inclusion studies,
suggest that the Au- and CO2-rich fluids responsible for gold mineralization were released
by devolatilization of supracrustal rocks underthrust to mid- to lower-crustal levels during
subduction. This MT study links shallow gold mineralization to a deep crustal source region,
demonstrating the connection between a crustal suture zone and the formation of orogenic
gold deposits in an Archean greenstone belt.

 

American Copper Development Completes 134 line-km Titan 160 DCIP and MT Survey Over the Lordsburg Property, New Mexico

Vancouver, British Columbia–(Newsfile Corp. – January 18, 2023) – American Copper Development Corporation (CSE: ADCX) (“ACDC” or the “‎‎Company”) is pleased to report preliminary results from a 134 line-km 3D Titan 160 DC resistivity/induced polarization (DCIP) and Magnetotellurics (MT) survey. The survey was completed across 16 lines (13 N-S and 3 E-W) by Quantec Geoscience over the Company’s flagship Lordsburg property in southwestern New Mexico (see map in appendix).

The purpose of the survey is to provide property-wide deep chargeability, resistivity, and magnetotelluric information at the Lordsburg property with the intent to help identify porphyry and/or skarn style mineralization targets. The DCIP provides information to depths of 700m and greater with the MT resistivity providing information to depths of up to 2km. Quantec conducted this high-resolution survey between August 2022 and January 2023. The Company is currently working with our contractors on 3D data inversions of both the DCIP and MT surveys and expect to have those results completed by February.

 

 

Quantec Geoscience Completes TITAN MT Deep-Penetrating Geophysical Survey at La Virginia

• Drilling at Paredones zone is complete, with first results now received
• Prospecting activities continue to advance La Colmena, north of El Rubi, and return encouraging surface samples ranging up to 8.31 g/t gold and 90 g/t silver from chip sampling at the southern extension of El Molino Zone

VANCOUVER, BC, April 8, 2022 /CNW/ – Silver Viper Minerals Corp. (the “Company” or “Silver Viper“) (TSXV: VIPR) is pleased to provide an update on exploration activities within the La Virginia Silver-Gold Project, located in Sonora, Mexico. Exploration efforts since the release of Silver Viper’s Maiden NI 43-101 gold-silver mineral resource estimate have continued to advance with exploration drilling at El Rubi and expansion of mapping and sampling coverage across the project area. Recent drilling has been performed at the Paredones Zone on the eastern structural/mineralized trend. Quantec Geoscience contractors have now completed data collection for a 31 line-kilometre Magnetotelluric geophysical survey covering approximately 610 hectares (1,500 acres). Final deliverables from the survey are expected in the coming weeks.

Silver Viper had engaged Quantec Geoscience to execute a TITAN-MT deep-penetrating geophysical survey centered on the El Rubi Deposit, Paredones and El Molino target areas. The survey is expected to greatly assist in targeting for deeper portions of the mineralized system. The TITAN Magnetotelluric (“MT“) survey is capable of acquiring information from depths in excess of 1,500 metres below surface. In anticipation of the survey, drilling recently focused on probing of prospective mineralized structures and trends, most recently the Paredones area on the eastern trend sub-parallel to that hosting El Rubi.

Silver Viper’s President and CEO Steve Cope states “Quantec has shared preliminary data from the first lines of the MT survey.  We expect the geophysics to help in refining drill testing of existing zones and to reveal new deeper unexposed targets. Once the data is processed, we anticipate identification of additional prospective targets, comparable in size to El Rubi. Preliminary data is already showing potential new targets that were previously unknown.”

The exploration team has reviewed preliminary 2D imaging from the first of the MT survey lines and believe the method will be very effective at La Virginia. The company eagerly awaits final deliverables expected in the coming weeks.

Prospecting work continues along the El Rubi trend and the adjacent El Molino trend. Advances have been made at the La Colmena, Paredones and El Molino South prospect areas.  These early-stage prospects host outcroppings of silicified hydrothermal breccias and quartz veining, similar to breccias and veining seen in the El Rubi area. In addition to the geophysical survey, current work includes rock chip sampling and mapping.

VANCOUVER, B.C., July 20, 2021 – Tectonic Metals Inc. (TECT: TSX-V; TETOF: OTCQB; T15B: FSE) (the “Company” or “Tectonic”) today announced the commencement of a deep-penetrating TITAN-160 (“TITAN”) ground-based Geophysical Survey (the “Survey”) designed to specifically target multiple Pogo-like gold-in-soil anomalies situated on the Company’s Tibbs Gold Project (“Tibbs”), located in Alaska’s Goodpaster Mining District, 35 kilometres (“km”) east of Northern Star Resources’ Pogo Gold Mine. The Company engaged Quantec Geoscience Limited to carry out the Survey at Tibbs to transect the entirety of the structural corridor, which controls gold mineralization at the property. TITAN is a unique survey that employs two separate geophysical surveys: DC Resistivity and Induced Polarization (“DCIP”) and Magnetotelluric (“MT”) and provides DCIP resistivity and chargeability sections at depths of up to 750m, with MT collected to depths of 1,500m and greater.

 

TITAN-160 Survey – Technical Details
Four TITAN lines 4,000m long and spaced approximately 1,000m apart are planned at Tibbs. Dipoles are spaced at 100m along each line, with MT sites spaced at 200m, to provide data coverage to significant depths (DCIP to approximately 750m depth; MT resistivity to approximately 4,000m depth). The Survey is expected to be completed in the latter half of July.

 

Scope of Project:

Laurentian University’s Mineral Exploration Research Centre (MERC) is leading a geophysical survey in the Timmins and Cochrane area from October 7 to November 15, 2020.

The goal is to advance geoscientific knowledge about the underlying geologic architecture, structures, and mineral resource potential of the Earth’s crust approximately 30 kilometres below the surface. 

The project is part of MERC’s $104 million Metal Earth project, which is Canada’s most extensive exploration research program and involves a consortium of industry partners. 

Quantec Geoscience will use electromagnetic technology, specifically magnetotelluric (MT) and audio magnetotelluric (AMT) instruments, to survey selected stations within a corridor of approximately 130 kilometres by 50 kilometres.

The corridor stretches from Highway 11 in the north to 50 kilometres south of Timmins. Surveyors will be active in some residential areas. 

High-resolution AMT surveys in the Timmins gold camp are made possible with consortium partner support. Newmont Corp is funding surveying from Tisdale to Matheson townships. International Explorers and Prospectors Inc. and Lake Shore Gold (a subsidiary of Pan American Silver) are funding surveys from Loveland to Thorneloe townships, west of Timmins. 

The new survey adds data to previous seismic and ongoing MT and AMT surveys conducted through the Metal Earth project in Ontario and Quebec. Seismic surveys were completed as part of the Discover Abitibi project, managed by the Timmins Economic Development Corporation, in 2004. MT and AMT surveys were not previously conducted in the planned survey area.