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Projects Overview
Sudbury Properties
Broken Hammer Project
Xstrata Nickel JV
Impala Parkin JV
Lonmin Plc JV
North Range Project
Miocene Metals Investment
Duluth Metals Investment
Project Photos   |
Miocene Metals Overview: Miocene Metals property portfolio is located along a 250 kilometre segment of the Cascade Magmatic Arc, a belt of Tertiary (<65 Ma) and younger intrusive and extrusive rocks which stretches from Northern California to the southern end of the Alaska Panhandle. Currently the Company holds three advanced properties: 1. Rogers Creek Property 2. Salal Property 3. Mackenzie Property as well as four grass roots properties: Schulaps, Sunshine, Mount Barr and Cluster Ridge Properties. (Figure 1) Miocene Metals' properties cover seven of the most prospective intrusions along what we consider as an under-explored, poorly-recognised segment of the Cascade Arc. In the United States, this belt of rocks has produced mineral deposits approaching giant size, such as Quartz Hill (1.6 BT of 0.127% MoS2) in Alaska, and Glacier Peak (1.7 BT @ 0.334% Cu and 0.015% MoS2) and Margaret (597 MT @ 0.465% Cu-Eq.) in Washington State (all non-compliant 43-101 resources). The property portfolio has excellent potential for discovery as similar giant deposits have not been found in the Canadian segment of the Cascade Arc although the geology and subduction processes are the same on both sides of the international border. The Cascade Magmatic Arc formed as a result of the subduction of various Pacific Ocean plates, transform faults and ridges beneath the nascent North American continent over the past 65 million years. This process was identical to the formation of Tertiary-aged porphyry Cu-Au-Mo belts in Chile, Peru, the United States and Indonesia. The majority of the Cu, Au and Mo resources that are being mined in the world today come from similarly-aged belts of porphyry intrusions (Figure 2). Miocene Metals' seven properties cover in excess of 1300 square kilometres in south-western British Columbia. The properties are located in an area of British Columbia with excellent road, railroad, power, water and human resources. Only two of the properties, Salal and Mackenzie are located great than 30 kilometres from paved highway, single or double track railroad and high tension power, and all are within three to four hours drive from the Port of Vancouver. Rogers Creek Property: The Rogers Creek property came to Wallbridge's attention in the fall of 2007. A due-diligence program of geological reconnaissance and soil and rock sampling revealed a geologic environment similar to that which hosts a number of world-class porphyry copper-gold deposits in other areas around the Pacific Rim. As a result, although this property is outside Wallbridge's Sudbury focus, Wallbridge entered into an option agreement with the property owner. The property was spun-out into Miocene Metals in 2010. The Rogers Creek property is located in southwestern British Columbia, about 40 km south of Pemberton and a 3 hour drive from Vancouver. It is located in an easily accessible area with excellent infrastructure including a major power line along the western edge of the property.The property consists of 95 claims covering 427.3 km2 of ground favourable to host a porphyry-style copper-gold deposit. Porphyry deposits are being mined for copper, molybdenum, gold and silver all along the Pacific coast of North, Central and South America. The deposits can be extremely large, with resources often exceeding billions of tonnes. They are the principal source of copper and molybdenum in the world and often contain very large resources of gold and silver. Exploration work to date has identified four principal target areas for gold, molybdenum and copper mineralization: Target I and II is a second magnetic low (~1.5 km diameter) located about 2 kilometres to the south-west of Target I. Outcrop is very scarce within the margins of the magnetic low with only a few scattered hornblende granodiorite outcrops exposed north of Rogers Creek. Several, irregularly-shaped pegmatitic bodies have been found during prospecting south of the creek, one of which returned 8.17% Cu, 0.389 g/t Au, 120 g/t Ag and 0.022% Mo. Soil sampling has defined multiple gold-in-soil geochemical anomalies (> 25 ppb Au) particularly along the western (values up to 0.242 g/t Au) and northern margins (values up to 0.542 g/t Au) of the magnetic low, which also is flanked on the northern margin by several chalcopyrite occurrences. Numerous occurrences of copper and gold mineralization have been found along a logging road between Targets I and II, where chalcopyrite and bornite mineralization is exposed in narrow "A" and "D" vein assemblages, along fault planes, within irregular zones of chlorite stringers and in fluid exsolution pipes. Selective grab samples returned up to 6,850 ppm copper with weakly to moderately anomalous gold and silver values. At Target III , a 200 m diameter zone of hematite and clay/sericite/tourmaline-altered breccia was located in an area of anomalous Au-in-silt values (up to 2.3 g/t Au) and zones of intense silica and potassic alteration. Gold anomalies found in stream and rock samples from the area appear to drain east-west trending structures which host zones of intense quartz-sericite-pyrite alteration up to 5 metres wide, which have returned up to 0.4 g/t Au from highly weathered gossanous outcrops. Target IV was discovered in the south-western part of the property (Fire Mountain claim block) during prospecting along newly built logging roads. Two new showings were located with significant molybdenite, chalcopyrite, and malachite mineralization controlled by north-northwest trending veinlets and fractures. Drilling in the fall of 2009 (Figure 3) focused on testing IP and geological targets on the western margin of the massive Target I magnetic low, which coincided with surface exposures of copper-gold mineralization along Copper Road and in deeply incised stream valleys, and anomalous soil and stream sediment results. This initial program of drilling consisting of three holes for a total of 2,123 metres of NQ core demonstrated that Target I was underlain by mineralization and alteration consistent with porphyry Cu-Au-Mo deposits being explored world-wide. Best results were returned from WRC-002 that contained an interval of 120 m of 0.2 g/t Au from 598.0 m to 718.0 m down-hole. Values within this zone include 0.53 g/t Au over 16 m from 613.0 m to 629.0 m, including 4.24 g/t Au over 1.5 m from 627.5 m to 629.0 m, and 1.53 g/t Au, 0.130% Cu, and 11.2 g/t Ag over 7.5 m from 704.5 m to 712 m, including 4.37 g/t Au, 0.130% Cu, and 20.0 g/t Ag over 1.5 m from 710.5 m to 712.0 m. Drilling results were consistent with the intersection of Au-Ag-enriched quartz-sulphide veins that formed in the pyritic halo of a zoned porphyry system. Salal Property: The Salal molybdenum-rhenium-silver (Mo-Re-Ag) property comprises a contiguous group of claims staked by Wallbridge plus the optioned Logan and Owsiacki properties. The property, encompassing 32 claims with a total area of 11,564.14 ha, is located about 150 km due north of Vancouver, 65 km northwest of Pemberton and 100 km west of Lillooet in the Coast Mountains. There is no road access onto the property but forest service roads are available to within several kilometres of the northern and southern claim boundaries providing access from Lillooet (100 km to the east) and Pemberton (55 kilometres to the south), respectively. Both Pemberton and Lillooet are on the provincial power grid and the BC Rail line. This appears to be the first time that a land package has been consolidated over the entire Salal intrusion over a 50 year exploration history, which found molybdenum occurrences along a very well-defined 15 kilometre arcuate trend. In addition, the property has the strongest Mo-in-stream sediment anomaly in the province when Mo-in-silt results are compared to the British Columbia Geological Survey database. The property has recieved little advanced exploration work although historic chip samples returned potentially economic grades of molybdenum mineralization over potentially economic widths (e.g. 85 metres of 0.13% MoS2, 55 meters of 0.32% MoS2 and 30 meters of 0.14% MoS2), there are numerous historic high-grade grab and float samples, and molybdenum mineralization is exposed in creek valleys over vertical distances of at least 450 metres (Figure 4). The property is underlain by the 8 Ma Salal pluton, a multi-stage composite intrusive complex consisting of an inner, fine-grained core and an outer coarse-grained margin. Porphyry-style, low-fluorine molybdenum mineralization (± rhenium, tungsten, lead, zinc, and silver) occurs as fine-grained molybdenite in quartz-pyrite veins [dominant], in stockworks and on joints and shears and coarser-grained molybdenite disseminated in fine-grained granite and as coatings and rosettes on fractures. Some of the better known mineralization is in the Float Creek and Plug Creek areas in the south-central area of the property and in the relatively unexplored north-central area of the property in the vicinity of Mud Lake. It is very significant that new occurrences of molybdenum mineralization are being discovered in areas where glaciers have receded from 1960's and 1970's levels when the majority of work took place on the property. In the Float Creek/Plug Creek area, historical work discovered molybdenum mineralization over a vertical distance of more than 450 m. Highlight chip samples from this work include: 26.52 m of 0.130% MoS2 9.14 m of 0.480% MoS2 85 m of 0.13% MoS2 55 m of 0.319% MoS2 30 m of 0.135% MoS2 20 m of 0.118% MoS2 In the Mud Lake area, fine-grained molybdenite occurs in east-striking, poly-phase quartz-pyrite veins, stockworks, and joints. The veins are commonly laminated, 30 cm to 60 cm thick, and bounded by intensely silicified granite. Highlights from sparse historical chip sampling include: 30.4 m averaging 0.08% MoS2 (including a 6.10 m sub-interval averaging 0.21% MoS2) 24.38 m averaging 0.13% MoS2. Salal molybdenum mineralization belongs to the low-fluorine class of molybdenite deposits in contrast to Climax-type, which are of the high-fluorine class. The principal differences are slightly lower-grades in the low-fluorine type (typically less than 0.2% MoS2) but substantially higher potential tonnages with several hundred million tonnes being common (e.g. Thompson Creek Mine 164.6 Mt @ 0.084% Mo; Endako Mine 172.1 Mt @ 0.050). According to the USGS, the low-fluorine class produces acid-neutral or slightly acid-consuming tailings and tailings typically are low in deleterious elements due to fairly simple ore and waste mineralogy. Enrichment in rhenium is a significant feature of the low-fluorine deposit class and Salal may be one of the better examples as suggested by several very high-grade results returned from Paget Minerals' grab samples in the Mud Lake area, which included: 0.86% Mo and 82 g/t Re 0.28% MoS2 and 7 g/t Re 0.17% MoS2 and 5 g/t Re Although these most likely are not representative of Re concentrations across the mineralized portion of the Salal Creek pluton, they point to a potentially significant by-product credit, as is silver. Mackenzie Property: The Mackenzie property comprises two contiguous claim groups totalling 13 claims covering 3,630 ha and is located about 10 km northeast of the Salal property. There is no road access onto the claims but forest service roads, which link with Gold Bridge, come within several kilometres of the northern and southern claim boundaries. The property is located approximately 100 kilometres west of Lillooet the nearest population centre, railhead, source of high tension power and major road. Copper-gold mineralization was found on the property by prospecting in 2003. There is no assessment record or indication on the surface that the mineralization has ever been explored by a mineral exploration company. Mineralization is hosted by several NW-SE striking, shallowly dipping (~20 °E) brittle structures that cross-cut foliated biotite-hornblende-quartz-diorite of the Late-Cretaceous Hurley River pluton. The principal structure (Figure 5) is exposed in a continuous zone for a distance of greater than 1.0 kilometre on a near-vertical rock face at the head of a glacial cirque. Where the structure is cross-cut by numerous, closely-spaced vertical fractures at several locations, it widens to several metres in width suggesting that mineralized "shoots" may have formed, which plunge into the hillside. One and possibly two parallel structures also are present but access to higher elevations on the face to sample these structures was hampered by its steepness and cover by residual snow. Mineralization occurs predominantly as disseminated to coarse patchy chalcopyrite in veins and as disseminated grains in the host rock adjacent to faults and fracture sets. Semi-massive chalcopyrite masses up to 1 metre across were sampled at one location along the structure and may support the concept that plunging "ore shoots" are present. Secondary malachite and chrysocola are abundant within and adjacent to the boundaries of the structure, particularly where it widens where cross-cut by zones of vertically-oriented fractures. Azurite and vein-hosted chalcocite occur at the north-western extent of the structure. The origin of the mineralization is not clear at this time, but a link with a porphyry-style system is suggested by enrichments in molybdenum and rhenium in some samples. In addition, vein-hosted phyllic (quartz-sericite-pyrite) and propylitic (pyrite-epidote) alteration assemblages have been observed across the rock face and outside the mineralized area during early prospecting with patchy potassic (potassium feldspar) alteration observed closed to mineralized outcrops. Values obtained from chip and grab samples on this structure are tabulated in the accompanying table and their locations together with samples collected by the property vendor are illustrated on the accompany figure. |
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