Mar 6 2019
Inventus Mining Corp. takes immense pleasure in offering an update about exploration activities on its 100% owned Sudbury 2.0 property situated northeast of Sudbury, Ontario.
During the 2018 field season, Inventus identified and mapped a neighboring belt of Sudbury breccia over a distance of 14 km with the capability to expand it over 30 km. The breccia belt is situated on top of the Temagami Magnetic Anomaly and further confirms the Sudbury 2.0 exploration concept. Inventus intends to investigate the breccia belt more comprehensively and compare it with Sudbury’s South Range Breccia Belt that holds the Frood-Stobie deposit.
Furthermore, Inventus has discovered two exotic mafic dykes on the Property, the lithological and geochemical characteristics of which are different from any known intrusive rocks in the local area. The two mafic dykes are being examined thoroughly to determine their geological correlation to both the Temagami Magnetic Anomaly and Sudbury Igneous Complex (SIC).
With the discovery of uninvestigated Sudbury-type geology found on surface, currently, a stronger geological correlation has been made between the Temagami Magnetic Anomaly and the Sudbury Basin. These new discoveries propose that there is good exploration possibility for magmatic Ni-Cu-Pt-Pd mineralization and associated hydrothermal Au-Cu-Co-Ni mineralization over a huge area of the Property.
Sudbury Breccia Belt
Geological mapping at the time of the 2018 field season resulted in the discovery of an earlier unexplored 14 km belt of Sudbury breccia. The breccia belt, called the Laundry Lake Breccia Belt (LLBB), is situated above the western peak of the Temagami Magnetic Anomaly and beside a regional gravity discontinuity, signifying that the breccia belt was located along a main regional structure.
It was found that the LLBB consists of a range of different rock types as inclusions, with at least two different exotic mafic rock types of an unknown origin. The various rock types differing from the surrounding geology imply that the breccia clasts were carried to considerable distances. This is an unusual happening in the region and shows similarities with both the South Range Breccia Belt (SRBB) and footwall-type breccia that is found along the footwall of the Sudbury Igneous Complex (SIC). The SRBB owns the Frood-Stobie deposit, the biggest ore deposit in the Sudbury Basin and also one of the largest single deposits in the world. It seems that the new LLBB is the only other breccia structure similar to the SRBB occurring around the SIC. Inventus intends to use the SRBB and the Frood-Stobie deposit as a model to lead future exploration on the Property.
Mafic Dykes
During the 2018 field season, two exotic mafic dykes were also mapped on the Property.
Tholeiite Diorite Dyke
It was noticed that this dyke encroached the Huronian Supergroup sediments with a near vertical dip and was mapped in two parts with a combined length of 5.7 km. Initial analysis of the dyke showed some lithological similarities to quartz diorite offset dykes that are found branching out from the Sudbury Igneous Complex (SIC), including atypical platinum and palladium values. Both sections of the dyke share the same NE-SW strike and are possibly connected for a total length of more than 8 km. The dyke’s southwest extent could project back to the SIC, analogous to other offset dykes found emerging from the Sudbury Structure. The north-eastern section of the dyke is spatially related to well-known hydrothermal Au-Cu and Au-Co-Ni mineralization and the newly identified LLBB.
Earlier investigation of the hydrothermal mineralization by Flag Resources at the Wolf Lake and Cobalt Hill areas did not identify the importance or probable genetic connection between the mafic dyke, Sudbury breccia, and the SIC. An investigation of Flag’s historic exploration data showed the mafic dyke was intersected in multiple drill holes close to the hydrothermal Cu-Au mineralization, and only a single 10-m section of the mafic dyke seems to have ever been examined, which yielded 1.1 g/t gold over 9.3 m. It can be seen from the historic account that the mafic dyke was not examined for platinum or palladium.
Alkaline Diorite Dyke
This dyke was mapped over 1 km above the western peak of the Temagami Magnetic Anomaly, where it has an interfering contact with the Huronian Supergroup sediments. The dyke is fairly magnetic with a near vertical dip and possesses an NW-SE strike. The contact of the dyke with the LLBB was not noticed but clasts of the dyke were discovered in the breccia. The alkaline diorite dyke is older than the Huronian sediments, however, younger than the Sudbury Event and does not link with any intrusive magmatic events in the region. The likelihood of this dyke being a distal part of a larger magmatic body at depth, possibly responsible for the Temagami Magnetic Anomaly, is being assessed.
Inventus hopes that the LLBB and the exotic mafic dykes will serve as outstanding exploration targets. Inventus is planning its upcoming 2019 field season with importance on field observations and its newly obtained database of geophysical data, including comprehensive magnetic data yielded by Falconbridge that was compassionately offered by Glencore.