Landore Resources Ltd.'s wholly-owned operating subsidiary, Landore Resources Canada Inc. (“Landore Canada”), is engaged in the exploration and development of a portfolio of precious and base metal properties in North America.
The Junior Lake property is 100 percent owned by Landore Canada, which is host to the BAM Gold Deposit.
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Summary:
Preliminary exploration work on the BAM Zone (MacTavish, 2004) identified that gold mineralization satisfies many of the characteristics typical of greenstone-hosted quartz-carbonate vein deposits:
• It occurs within a volcanic-dominant greenstone belt in close spatial association with felsic intrusive rocks and a regional-scale deformation zone (Junior Lake Shear) along the northern contact of the GPS – typical of a brittle-ductile transition regime.
• It exhibits replacement style disseminated pyrite and arsenopyrite mineralization.
• Is closely associated with carbonatization, K-alteration, and silicification.
• Gold mineralization is hosted by greenschist to locally amphibolite-facies metamorphic rocks.
MacTavish (2004) stated that the BAM Zone gold mineralization observed on surface and in the drill holes exhibits some of the characteristics common to disseminated replacement style Archean orogenic gold deposits in Canada.
A highly prospective Archean greenstone belt traverses the Junior Lake Property from east to west for approximately 31 kilometres. The greenstone belt ranges from 0.5 to 1.5 kilometres wide and contains many of Landore Resources' stated mineral resources and prospects. However, the greater proportion of this belt remains unexplored. The BAM Gold Deposit is located in the south-central area of the Junior Lake property and is interpreted as an Archaean mesothermal gold deposit in which gold mineralization is hosted by sheared and altered rocks of the Grassy Pond Sill and the BAM volcano-sedimentary sequence.
Mineralized structures appear to strike approximately parallel to lithologies, averaging 280° strike and steeply dipping to the south between -65° to -80°. Gold mineralization remains open along strike to the east and west, and down dip.
The gold mineralization is interpreted to reside within a series of tabular shaped zones that are oriented in a roughly en-echelon configuration and are generally parallel to the overall strike of the host rock units. The gold mineralization occurs as a fine dissemination and is also commonly observed in drill core to exist as visible gold that is hosted by very thin, foliation-parallel quartz-rich veinlets, hosted by highly fissile ultramafic sediments of the BAM Sequence, or by foliated rocks of the Grassy Pond Sill. A preliminary petrographic study carried out on a number of samples has identified the presence of coarse native gold in association with either tourmaline, ankerite, or scheelite assemblages that occur within calcite replacement patches and veinlets.
BAM Deposit Mineralization
The BAM Gold Deposit is located in the south-central area of the Junior Lake property and is interpreted as an Archean-aged mesothermal gold deposit. The deposit consists of gold mineralization that is hosted by sheared and altered rocks of the Grassy Pond Sill and the BAM Sequence.
The deposit has been traced by detailed drilling at approximately 50 m centres along a strike length of approximately 2,000 m. Reconnaissance-scale step-out drilling has also intersected gold mineralization in the same host rocks along a strike length of approximately 1,900 m. Based upon the information collected from the detailed scale diamond drill holes, the host rock units strike in an east-southeast direction (average of azimuth 105°) and dip steeply to moderately to the south at 70° to 75°. The gold mineralization is interpreted to reside within a series of tabular shaped zones that are oriented in a roughly en-echelon configuration and are generally parallel to the overall strike of the host rock units. Within the main BAM Sequence four to six mineralized zones are currently recognized, with the estimated true widths of each mineralized zones ranging from 2 m to 50 m.
The gold mineralization occurs as a fine dissemination and also is commonly observed in drill core to exist as visible gold that is hosted by very thin, foliation-parallel quartz-rich veinlets, hosted by highly fissile ultramafic sediments of the BAM Sequence, or by foliated rocks of the Grassy Pond Sill.
A preliminary petrographic study (Payne, 2016) carried out on a number of samples has identified the presence of coarse native gold in association with an unidentified silvery mineral that occurs within calcite replacement patches and veinlets.
Apart from the fissile nature observed in the ultramafic sediments, little traditional megascopic alteration (sericite-ankerite), hydrothermal sulphide deposition (pyrite-pyrrhotite-chalcopyrite- arsenopyrite) or large-scale quartz veining is observed associated with the mineralized rock units of the BAM Sequence. Sphalerite is observed on rare occasions. The presence of microscopic scale ankerite alteration with the gold mineralization cannot be ruled out. Sporadic development of amphibole-biotite is observed within the BAM Sequence, however, the relationship of this mineral assemblage to the gold mineralization is not currently understood.
Small-scale quartz veining is observed to be present within the BAM Sequence and the Grassy Pond Sill on occasion, and the veins can be either barren or be associated with gold-bearing intervals. The observed veins typically measure up to 10 cm in width and can contain an assemblage of either tourmaline (schorl), ankerite, or scheelite. Textural evidence suggests that two generations of quartz veins may be present. The detailed paragenetic relationship of the quartz veining to the structure and gold veining is not clearly understood at present.
Lamaune Prospect Mineralization
The Lamaune gold prospect is located in the western area of the property and comprises two subvertical zones of mineralization (Brown, 2010 and Tuomi, 2010). The first of these is a wide lowgrade zone, generally consisting of small, millimetre to centimetre scale quartz–calcite veinlets in a silicified, garnetiferous amphibolite. The second and more discordant zone is a set of centimetre wide quartz veins. The mineralogy of the veining is simple, with native gold occurring with quartz, calcite, and muscovite and sulphides consisting of arsenopyrite and pyrrhotite. Visible gold has been observed in several holes.
The mineralization has been traced by drilling over a strike length of 500 m and to a depth of 200 m and remains open both along strike and at depth.