Lockerby East Project, Ontario, Canada

Project Snapshot

Status

Advanced stage (Historical Past Producer with existing resources)

Location

20 km West of Sudbury, Ontario

Commodity

Nickel, copper, and platinum-group metals (PGM)

Ownership

100% Owned Mining Patents covering 390 hectares

Current Exploration

2022 Exploration Program to include geophysics and diamond drilling

Historic Resources

West Graham

  • 8.55Mt @ 0.45% Ni, 0.31% Cu (Indicated)
  • 2.00Mt @ 0.38% Ni, 0.31% Cu (Inferred)

Lockerby East

  • 0.18Mt @ 2.32% Ni, 0.78% Cu (Indicated)
  • 0.04Mt @ 2.90% Ni, 0.80% Cu (Inferred)
  • Overview

    The Lockerby East Property is located ~20 km west of Sudbury, Ontario within the southwest corner of the Sudbury Basin, and consists of approximately 390 hectares of freehold mining patents. The property is adjacent to the past producing Lockerby Mine and hosts the past producing Lockerby East deposit that was accessed and mined via a 1.1 km access drift extending from the 3800 Level of the Lockerby Mine as well as the West Graham deposit. 

  • Project Presentation

    • Lockerby East - Q2 2022
      View PDF
  • Brief History

    The Lockerby and Lockerby East Mines were put into production by Falconbridge LTD. in 1971. In 2004 Falconbridge LTD. decided to close the mine and it was put on care and maintenance. In 2005, First Nickel Inc., acquired ownership of the property from Falconbridge LTD. and resumed commercial production at the Lockerby and Lockerby East Mines. In June of 2015, First Nickel Inc. closed the Lockerby Mine and entered into receivership due to low metal prices and production issues. During a period of 44 years, from 1971 to 2015, the Lockerby and Lockerby East Mines produced an estimated 9.6Mt of ore grading 1.83% Ni and 1.08% Cu. On May 5th, 2016 SPC Nickel Corp. (formerly Sudbury Platinum Corp.) announced the acquisition of the Lockerby East and West Graham Properties.

  • Geology and Mineralization

    The Lockerby East Property (LKE) is situated in the southwest portion of the Sudbury Igneous Complex (SIC) and straddles the contact between the Proterozoic aged Huronian Supergroup rocks to the south and the crystalline igneous rock of the SIC to the north. Locally the footwall rocks are dominated by mafic volcanics of the Elsie Mountain Fm. and granitic rocks of the Creighton Pluton. Localized zones of Sudbury Breccia occur throughout the footwall rocks.

    Ni-Cu-PGM mineralization on the Lockerby East Property is directly associated with the basal contact of the SIC and is hosted within a discontinuous inclusion-bearing noritic unit called the Sublayer. On the property the SIC contact near-surface initially dips 45° to 50° to the north but gradually steepens and is near vertical at the LKE Zone at 900m depth. At 1,075m vertical depth the SIC contact rolls over back towards the south at a dip of 70°.

    Two distinct zones of sulphide mineralization exist on the LKE Property, the West Graham deposit and the Lockerby East deposit.

    In 2009, First Nickel disclosed a NI 43-101 Indicated Resource for the West Graham deposit totaling 8.55Mt grading 0.45% Ni and 0.31% Cu, along with an Inferred Resource of 2.0Mt grading 0.38% Ni and 0.30% Cu. The deposit extends from 40m below surface to a depth of approximately 475m. The modelled zone ranges in thickness from 1.7 to 66m and strikes for 375m with a dip extent of up to 533m. The deposit is composed primarily of high Ni-tenor disseminated and blebby sulphide mineralization (8-10%) within the Sublayer 30 to 100m above the basal contact. Historic drill intersections include hole WG-26 that intersected 0.73% Ni and 0.28% Cu over 71.33m including 39.47m of 1.09% Ni and 0.41% Cu.

    In 2010, First Nickel disclosed a NI 43-101 Indicated Resource for the Lockerby East deposit totaling 0.18Mt grading 2.32% Ni and 0.87% Cu, along with an Inferred Resource of 0.04Mt grading 2.90% Ni and 0.80% Cu. The mineralization is predominately contact style, with narrow (<5m thick) semi-massive to massive sulphide breccia veins anastomosing proximal to the granite/SIC contact. The distribution of mineralization is controlled primarily by the nose of the roll-over in the SIC contact at a depth of approximately 1,075m. Historic underground drill intersections reported by First Nickel include hole FNI3414 that intersected 5.60% Ni, 1.26% Cu and 0.10% Co over 10.0m.

  • Maps and Figures