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Murchison Provides Update on Geophysical Interpretation and Modelling Progress on the Brabant-Mackenzie VMS Project
TORONTO, ON / ACCESSWIRE / April 29, 2019 / Murchison Minerals Ltd. (" Murchison " or the " ...
About this update from Murchison Minerals Ltd
[{"type":"text","content":"Murchison Provides Update on Geophysical Interpretation and Modelling Progress on the Brabant-Mackenzie VMS ProjectTORONTO, ON / ACCESSWIRE / April 29, 2019 / Murchison Minerals Ltd. (\"Murchison\" or the \"Company\") (TSXV: MUR) is pleased to report the progress of its ongoing geophysical interpretation of data collected by the electromagnetic VTEM-Max and magnetic airborne survey (the \"Survey\") completed in January 2019 on its Brabant-MacKenzie VMS property (the \"Property\") in north-central Saskatchewan.To date, 15 priority drill targets have been defined and modelled in detail. Most of these targets have been derived from the Survey with three of the targets (1, 2, 3) having been subjected to additional ground geophysical follow-up.Approximately half of the 324 km2 Property has been covered with the Survey. To date, only 25% of the area surveyed has been reviewed in detail. Additional priority targets will undoubtedly be identified before the upcoming summer exploration program, which will consist of target specific and regional prospecting and mapping. This program is scheduled to start in late May 2019.Anomalies 1 to 6 shown on the included map are considered as being located within a geological horizon associated with the Brabant-MacKenzie Cu-Zn-Ag-Pb-Au VMS deposit (the \"Deposit\"). Anomalies 7 to 15 are within the recently flown Survey, which is interpreted to have expanded the VMS environment to the east and south. Modelled depths of the anomalies vary between sub-cropping (very close to surface) to 184 metres below surface, with the majority within 50 metres of surface. Anomalies 2, 3, 5 and 13 are coincident or in close proximity to historical sulphide bearing mineralised showings.The anomaly selection is based on the Brabant-MacKenzie deposit geophysical signature and VMS deposit type geophysical characteristics. The Deposit's signature consists of isolated moderate conductivity EM responses with coincident magnetic high. The EM response is mainly attributed to the presence of conductive sulphide minerals pyrrhotite and chalcopyrite. The zinc is mainly derived from sulphide mineral sphalerite which is non-conductive. Within VMS environments, the ratio of copper to zinc can vary significantly. Typically, higher copper content leads to higher conductivities. Conversely, higher zinc content leads to lower conductiv...