Ontario Geological Survey
Permanent Link to this Record:
MDI42B01SE00009
| Record Name(s) | Hollinger DDH HN-3-73, HN-4-73 - 1973, Hardiman - 1982, R.G. Newman - 1972, Monte Carlo - 1936, Feld - 1935 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1992-May-22 |
| Date Last Modified | 2022-May-10 |
| Created By | |
| Revised By |
Primary Commodities: Molybdenum, Nickel
Township or Area: Horwood
Latitude: 48° 1' 22.76" Longitude: -82° 13' 44.79"
UTM Zone: 17 Easting: 408355.604 Northing: 5319586.319 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42B01SE
Point Location Description: An outcrop about ten metres inland from the shore.
Location Method: Field Visit with GPS
Access Description: The easiest access is via road though the showing is on the shore of Hardiman bay. From Highway 101 the Kenogaming then the Penhorwood main haul roads come to within a kilometre of the showing. A logging - exploration trail branches off the main haul road and extends down to Hardiman Bay passing within a 100m of the showing. Alternatively boat access is possible from fishing lodges at the north ends of Hardiman Bay or Horwood Lake.
1935 W. Feld originally staked the ground as a gold play and noted the occurrence of pyrite in a quartz vein along the contact of the granitic stock and supracrustals. 1936 Monte Carlo Exploration optioned the property and stripped the vein. 1972 Molybdenite mineralization was discovered by F. Breaks of the Ontario Geological Survey (grab sample assayed 0.15% Mo). Property then staked by R.G. Newman who reported obtaining assays up to 0.98% MoS2. (GR 169) 1973 Hollinger Mines optioned the property and drilled nine holes in the search for molybdenite (T-2119 / AFRI 42B01SE0070) 1987-88 Noranda Exploration: Ground geophysical and geochemical surveys. Noranda also excavated two large trenches to the southwest but results are unknown. (T-2125 / 2.10617 & 2.11727)
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2119 | 42B01SE0070 | 42B01SE0070 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2700 MA Geochron. Age Ref.: GOO VOL 1
Dec 07, 2005 (S Fumerton) - Along the length of Hardiman Bay there are a number of narrow zones of intense shearing (<5m thick) with remarkably sharp contacts with basically unsheared metavolcanics. Hardiman bay is probably the axis of this shearing and passes close to the known mineralization. Southwest of the showing a northwest trending fault has been mapped and locally offsets the stratigraphy.
| Rock Type | Rank | Composition | Texture | Relationship | Monzonite | 1 | Monzonite | Quartz | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Basalt | Tholeiitic Fe | Host |
| Ultramafic lava flow-unsubdivided | 3 | Komatiite | Host | |
| Schist-Unsubdivided | 4 | Mylonite | Indurated | N/A |
| Ultramafic Schist | 5 | Talc-Chlorite-Biotite | Contains |
Dec 07, 2005 (S Fumerton) - Mineralization is located along and near a sheared contact between komatiitic flows and an intrusive quartz monzonite pluton. The komatiites form thin bands and pods within a metavolcanic sequence otherwise dominated by Fe tholeiitic basalt flows and more intermediate tuffaceous horizons. This sequence trends northeast parallel to Hardiman Bay and together with minor metasediments, the whole sequence has been intruded by a number of felsic plutons including a megacrystic quartz monzonite. The komatiites have been extensively altered to talc carbonate schists and a protomylonitic texture has developed in the quartz monzonite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| Feldspar | Alteration | Potassic | 1 | Weak | Replacement | ||
| Hematite | Alteration | Hematization | 2 | Weak | Replacement | ||
| Talc | Alteration | Steatization | 3 | Medium | Replacement |
Dec 07, 2005 (S Fumerton) - Within the quartz monzodiorite, mineralization occurs within the ground mass as very fine disseminated molybdenite forming less than one percent of the rock. Fine disseminated pyrite also occurs in the ground mass and makes up between 1 and 2% of the rock. In addition to occurring in the groundmass of the monzonite, molybdenite also occurs in a quartz stockwork located near the contact. The quartz veins in this stockwork are dominantly well defined, small extension veins perpendicular to the contact and irregular larger veins parallel to the contact. Within this stockwork molybdenite occurs as fine grains in sparse, compact aggregates 1 x 6mm in size. Molybdenite together with pyrite and lesser pyrrhotite occur in the komatiites adjacent to the quartz monzonite. In this setting the molybdenite is associated with small quartz veins, fractures, minor zones of silicification, hematization, biotite alteration, and small monzonite dykes. N.B. There are a number of similarities between this showing and the Smith showing further to the southwest along Hardiman Bay.
Nov 22, 2006 (D Draper) - Hollinger drill results: Hole HN-2-73 (126 deg Az, -47 deg dip, drilled 23m offshore): 1ft of 0.15% MoS2 @ 65ft from a quartz vein mineralized with molybdenum, tremolite and actinolite in talc-chlorite schist. Hole HN-3-73 (126 deg Az, -50 deg dip, drilled onshore 23m from shoreline, collared 95m NE of HN-2): samples from talc-chlorite-biotite schist unit at top of hole returned 5 assays of 810 ppm to 920 ppm Ni; a further 8 samples assayed fro 512 ppm to 740 ppm Ni. (Assay values reported only on donated drill section; compiler unable to determine footages or intervals from document). Mo only assayed to 0.03% MoS2 in this hole. Hole HN-4-73 (126 deg Az, -50 deg dip, collared 135m NE of HN-3): 0.42% MoS2 over 2ft @ 212ft in porphyritic quartz monzonite (donated data) These holes were drilled within 300m of Fumerton GPS coordinates for occurrence but exact relative location unknown.
| Rank | Classification |
|---|---|
| 5 | Porphyry |
| Rank | Characteristic |
|---|---|
| 5 | Disseminated |
| 10 | Stockwork |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 150 | 3 | 400 | 225 | N/A | N/A |
Map - Horwood Lake, Sudbury District
Publication Number: M2329 Scale: 1:31,680 Date: 1975
Author: Breaks F.W.
Publisher Name: Ontario Division of Mines
Location:
Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
MonoMap - Geology of the Horwood Lake Area, Sudbury District
Publication Number: R169 Page: 49 Date: 1978
Author: Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Core - Timmins Drill Core Library Holes TI2032, TI2049, TI2114
Publication Number: Date: 1996
Author:
Publisher Name:
Location:
Publication - Molybdenum in Canada Part 2 : Molyfile; Geological Survey of Canada, Economic Geology Report 33
Publication Number: Econ Geol 33 Date: 1982
Author: Kirkham, R V; McCann, C; Prasad, N; Soregaroli, A E; Vokes, F M; Wine, G
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/109258
MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)
Publication Number: OFR5912 Page: 558-560 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Book - Horwood Township - unpublished GDIF
Publication Number: GDIF Date: 1990
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
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