Regional Geology and History

Nighthawk’s 100% owned Indin Lake Gold Property package, located within the Indin Lake Greenstone Belt, is comprised of both owned and optioned mining leases and staked claims within a continuous, north-trending area approximately 60 kilometres in length by 6 to 22 kilometres in width (899 km2).

The Indin Lake Greenstone Belt is one of Canada’s most underexplored Archean gold belts. The Indin Lake area is located approximately 200km north of Yellowknife, Northwest Territories.

Numerous gold deposits and showings are distributed throughout the company’s property with mineralization typically confined to narrow folded, and steeply dipping stratigraphy.  


4 Distinct Deposit Settings
 

Differentiated Mafic Sill

  • Colomac

  • Goldcrest

Structure Related

"Load Gold"

  • Leta Arm (includes historical North Inca & diversified mines)

  • Echo Indin

Iron Formation Hosted

  • Damoti Lake

  • Fishhook

  • JPK

Brecciated Intrusion Hosted

  • Cass Deposit

 

LOCATION & ACCESS


The property can be accessed year-roundby helicopter, by ski- or float-equipped fixed-wing aircraft to Baton Lake and Steeves Lake, by ski- or wheel-equipped fixed-wing aircraft to a 1,525 metre (5,000 foot) gravel airstrip on  the Property which is capable of handling aircraft up to the size of a Hercules transport or Boeing 727 jet.

Land access to the property is possible via a 245 kilometre winter road that starts west of Yellowknife from the No. 3 Highway at the Tåîchô community of Behchokö (formerly Rae-Edzo). The winter road follows the Emile River north to Basler Lake and Matteberry Lake. From Matteberry Lake, the road goes east across country to Indin Lake and along Indin Lake and then north to the Baton Lake area. The winter road when in use by Royal Oak in the mid-1990’s was suitable for "B-train" style tractor trailers. This route provides seasonal access to the NWT/Alberta/BC highway systems and the railhead at Hay River. Total distance winter road/highway distance from the Property to Yellowknife is approximately 340 kilometres via Behchokö. Total road distance to Edmonton, Alberta is about 1,650 kilometres.
 

DETAILED GEOLOGY

 

Nighthawk’s Indin Lake property lies in the Indin Lake Supracrustal Belt, a 2000 km2, NNE-trending elongate area of volcanic and sedimentary rocks which are Archean in age and belong to the Yellowknife Supergroup (Frith, 1986). The belt lies in the southwestern part of the Slave Structural Province, 30 km east of the boundary with the Bear Province (Morgan, 1992). The Indin Lake Supracrustal Belt is bounded to the west by Archean granitoid plutons and migmatites of the Slave Structural Province while gneissic complexes flank the eastern side and are thought to be basement rocks to the belt. The granites are, in large part, intrusive into the supracrustal rocks (Frith, 1986). The rock types and metamorphic zones form a series of broad, NNE-trending belts that extend from the south side of Truce Lake to the southern portion of the Snare River.

Volcanic rocks of the belt are comprised of mafic to intermediate flows, synvolcanic intrusive dykes and sills and felsic pyroclastic units and underlie roughly 30% of the Indin Lake area (Morgan, 1992). The volcanics form generally NNE-trending, elongate units ranging up to 5 km wide and 30 km long generally surrounded by metasediments (Morgan, 1992). The volcanic sequence is bimodal (intermediate compositions are rarer than felsic or mafic) and is 80% to 85% mafic and 15% to 20% felsic. Ultramafic rocks, metamorphosed to talc-chlorite-carbonate schist, underlie a few hectares of the Colomac property. The volcanics are overlain by and interfingered with sedimentary rocks, predominantly turbidite sequences of argillites, greywackes and siltstones; Narrow lenses or discontinuous layers of sulphide (pyrite-pyrrhotite) iron formation, sulphide-bearing argillite, and graphitic argillite are common in the sediments where they interfinger with felsic volcanics (Morgan, 1992). Several Archean plutonic bodies intrude the volcanic-sedimentary rocks. Diabase dykes of the Paleoproterozoic (ca. 2200 Ma) Indin Lake dyke swarm are numerous and cut all units throughout the Indin Lake area (Pehrsson, 2002 and Frith, 1986). The dykes are predominantly northwest- to northnorthwest -trending; a conjugate set trends northeasterly. Northwest-trending dykes of the younger Mesoproterozoic (1270 Ma) Mackenzie dyke swarm are present in small numbers; they are generally distinguished from those of the Indin Lake swarm by their prominent aeromagnetic signature and "fresh" appearance (Pehrsson, 2002); although less altered Indin Lake dykes may be difficult to distinguish from the Mackenzie dykes (Pehrsson, 2002 and Frith, 1986).

The Indin Lake Supracrustal belt has been metamorphosed to lower greenschist facies with local amphibolitic facies.
 

2012 NIGHTHAWK AIRBORNE SURVEY - TOTAL MAGNETIC INTENSITY

 

  • Magnetic & Very Low Frequency Electromagnetics (VLF) surveys

  • Entire land position covered - 16,000 line kilometres flown

  • Coverage at 75 metre line spacing

  • 80 m sensor height above surface


News Releases
Oct 22, 2018

46.25 Metres of 3.31 gpt Au, Including 21.75 Metres of 6.23 gpt Au, and 7.75 Metres of 14.20 gpt Au; and 18.50 Metres of 7.37 gpt Au, Including 8.00 Metres of 16.14 gpt Au, and 5.25 Metres of...

Sep 18, 2018

Nighthawk Gold Corp. ("Nighthawk" or the "Company") (TSX: NHK; OTCQX: MIMZF) is pleased to report drill results for eighteen holes (5,508 metres) recently completed at high-grade Zone 1.5, part of...

Sep 11, 2018

Nighthawk Gold Corp. ("Nighthawk" or the "Company") (TSX: NHK; OTCQX: MIMZF) is pleased to report drill results from seven holes (2,325 metres) recently completed within high-grade Zone 3.5, part...

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