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Major Hart RE and REE Project


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The Major Hart Project area contains one of British Columbia's most anomalous Regional Stream Sediment survey clusters. The REE, Fluorine, and Rubidium, Tantalum,and other element anomalies results …

The Major Hart Project area contains one of British Columbia's most anomalous Regional Stream Sediment survey clusters. The REE, Fluorine, and Rubidium, Tantalum,and other element anomalies results suggest a highly evolved and fractionated source magma, which highlight an exceptional opportunity for mineral exploration for High Tech Minerals.

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  • 1. The Hart Rare Earth Element (REE) Exploration Project Without Rare Earth Elements, or REEs for short, some of our most important modern technologies would never exist. They are often called ‘Modern Technology Metals’. Rare Earth Elements are essential to: Rechargeable batteries Catalytic converters Electric motors High performance metals Electric generators Computers and electronics Solar cells Lasers Super-strong permanent magnets Nuclear power plants The HART Property is possibly the largest unexplored Rare Earth Element and Strategic Metal anomaly in British Columbia. The Hart project covers 5344 hectares (13200 acres) of mineral lands. It is located approximately 90 km northeast of Dease Lake, B.C. The claims cover the source of highly anomalous rare earth element and strategic metals in stream sediment samples collected by the British Columbia Regional Geological Survey (BCGS). These anomalies cover drainages from over a 10 kilometre strike length of the Eocene alkaline feldspar Major Hart pluton at the contacts with both Slide Mountain sediments and volcanics and a Devonian to Permian ultramafic body. The broad contact zone, within and adjacent to the pluton, is considered to be very highly prospective for Rare Earth Elements, related Strategic Metals, and quite possibly Emeralds near the contact with the ultramafic rocks. The pluton is a one-of-a kind Eocene intrusive located between the Kechika Fault and the Kutcho Fault in the Omenica Terrane of B.C. This is in an area of intense and prolonged crustal faulting and deformation during the formation of British Columbia. Several British Columbia Geological Survey Regional Geochemical Survey (RGS) stream samples, assayed by neutron activation (INAA) and collected in the area of the claims, are in the upper 1% threshold. These are in the 1:250,000 scale 104I map sheet for anomalous Cerium, Lanthanum, Lutetium, Rubidium, Tantalum, Terbium, Tungsten, Ytterbium, and Fluorine in Water. Most of these samples dominate the top ten, or are included in the top twenty samples numbers in the list for several of the above minerals. Several of these samples rate highly in the top 1% and even the top 0.1% of the province-wide anomalous threshold in many of the same elements. These are out of approximately 53,000 samples collected over the last 30 years. The anomalies are especially pronounced in the High Field Strength Elements, which include the Heavy Rare Earths Elements (HREEs). HREEs are the most valuable and uncommon of the REEs. Two very strong anomalies are also noted using the atomic absorption method (AAS). Bismuth and Molybdenum also show upper 1% threshold anomalies. The anomalous elements are strong indicators of the emplacement of a very highly evolved intrusive magma, frequently associated with pegmatites.
  • 2. Hart Claims, B.C. RGS Sample Values and Geology Values in ppm, except F in water in ppb
  • 3. Many rare earths, and other rare high value elements, such as Beryllium, Dysprosium, Erbium, Europium, Gadolinium, Holmium, Lithium, Neodymium, Niobium, Praseodymium, Promethium, Thulium, Yttrium, Tin, Zircon, and Lithium have yet to be analyzed for, but many are likely to be found within the Hart claims area. This is concluded because of the suite of highly anomalous indicator minerals found here to date. The consistent and continuously anomalous values over the large area demonstrate the excellent potential size of the target. Although there are currently a small number of samples distributed over the large area, some degree of zoning of the rare minerals is indicated by the stream sample results. Aside from GSC 1:50,000 scale mapping, and the 1996 BCGS stream sample survey, no exploration work is known to have been recorded in the claim area. Considering the tenor of the anomalous stream sample results, the potential for an incredible new rare earth element (REE) discovery on the Hart claims is nearly unprecedented. Rare Earth Elements are concentrated in a number of different geological environments. They commonly occur in carbonatite and alkaline rock complexes. They are also found in skarns, pegmatites, and veins associated with volatile-enriched granites, and in alkaline granite-syenite complexes associated with other ‘high-tech’ elements. “In most rare earth deposits, the first four REE—La, Ce, Pr, and Nd—constitute 80 to 99% of the total. Therefore, deposits containing relatively high grades of the scarcer and more valuable heavy REE (HREE: Gd to Lu, Y) and Eu are particularly desirable.” – United States Geological Survey The Hart project covers one of British Columbia’s largest unexplored targets of highly anomalous REE indicators coupled with highly favourable and prospective geology. Target types include zoned NYF/LCT pegmatites, REE-Ta Sn(?)-W Greisen, and Tectonic/ Intrusion-related emerald deposits. Simultaneous occurrences of any combination of the above deposit types (or others) are possible.
  • 4. On the NTS Map sheet 104I (this contains approximately 900 INAA samples, released in 1996), the ratings from these samples draining the claims are: Ce 3 samples in the top (highest) 16 samples, 5 samples in the top 18 samples La 1 sample in top 5, 2 samples in top 12 samples Lu The top 3 samples, and 8 of the 9 top samples Rb The top 7 samples, 9 of the top 11 samples Ta The top 7 samples Tb The top sample, 2 samples of the top 4, 3 samples of the top 11 W 4 samples in the top 11 samples F in water, 6 samples of the top 9 samples Out of over 53,000 samples in the 2007 BCGS RGS INAA database: Sample 104I955137 is located on a creek draining the centre of the Hart claim block. This sample has the 4th highest RGS Ytterbium, 12th highest Lutetium, and the 21st highest Terbium. It also contains an AAS Molybdenum sample in the top 1% of the province (99th percentile). Sample 104I955135 is located on a creek draining the Hart claims on the opposite side of the ridge from 104I955137. This sample, taken 5.6 km away, has the 4th highest Rubidium, 9th highest Tantalum, 35th highest Ytterbium, and the 68th highest Tungsten. It also contains the 5th highest Bismuth sample in the AAS provincial sample group of over 14,500 samples. In fact, all 7 samples below are in the top 1% for Bismuth. In addition, all 7 samples below are in the top 1% or higher in the province for Lutetium, Rubidium, Tantalum & Tungsten; 6 are in the top 1% for Fluorine in water; 5 are in the top 1 % for Ytterbium, 4 are in top 1% for Cesium & Hafnium. Multiple equal analysis values counted as one sample rating level. –1 (below) indicates element not analysed. Not all elements in the government database have been tested by either AAS or INAA, however sample thresholds have been adjusted accordingly where a reduced population was encountered, for representative comparison purposes. All values below in ppm, except where indicated otherwise. Master ID Au Sb As Ba Br Ce Cs Cr Co Eu Hf Fe La Lu Mo Ni Rb Sm Sc Na Ta Tb Th W U Yb Zr Wt (ppb) (%) (g) 104I955147 2 0.7 3.6 610 4.1 220 7 70 4 -1 20 2.32 110 2.25 1 20 280 12 7.2 1.99 11 0.5 68 13 76 12.9 -1 28.37 104I955142 2 0.4 1.3 330 1.2 150 10 36 1 -1 20 1.02 81 1.51 1 20 420 6.2 5 2.58 18 0.5 51 10 29 9.1 -1 35.83 104I955137 2 0.5 9.2 1000 16 240 13 31 6 -1 9 6.91 120 7.68 1 140 290 36 6 1.43 15 8.2 110 13 140 54.2 -1 18.6 104I955136 2 0.5 3.2 470 3.1 220 14 990 34 -1 32 3.38 110 3.21 1 760 390 9.1 8.3 1.98 34 2.5 120 27 72 20.1 -1 36.08 104I955135 2 1.3 8.8 950 5.3 180 15 180 13 -1 43 3.49 88 3 1 240 470 7.4 14 2.1 35 0.5 100 33 63 17.5 -1 26.11 104I955004 2 0.5 0.8 780 5.5 240 12 73 4 -1 31 1.66 140 3.15 1 20 430 10 8.2 2.67 27 0.5 120 19 95 18.5 -1 19.07 104I953480 2 0.6 0.5 700 9.5 370 10 60 3 -1 36 2.2 210 4.96 1 20 370 21 5.9 2.39 33 3.8 140 23 180 27 -1 17.44 Special things happen in special granites, Exceptional things happen in exceptional granites.
  • 5. Comparison data to one of BC’s more advanced REE Projects
  • 6. Emerald Potential of the Hart REE Project In the fall of 1998, Expatriate Resources Inc. discovered emeralds on their property in the Finlayson Lake District of southeast Yukon. (Pale beryl or emerald had previously been found in pegmatite bodies near Rancheria on the B.C. -Yukon border.) In June of 2001, True North Gems acquired the Regal Ridge Emerald project from Expatriate Resources, and conducted sampling and processing of subcrop and talus material. This work has produced numerous small, gem quality emeralds with excellent color and clarity. Much work has yet to be done, but this discovery has sparked renewed interest in gemstone possibilities in the area. (Recently REEs were also found to exist on the property.) Emeralds are likely formed where volatile granitic fluids (often containing REEs) intrude, or are destabilized by the interaction with chromium-rich ultramafic rocks. Within in the Hart claim area, a large Devonian to Permian ultramafic body is in contact with the Major Hart Pluton. This area is considered highly prospective for the discovery of Emeralds. Where the pluton shows the highest overall amounts of anomalous rare elements in stream samples, the Major Hart granite has been noted as being miarolitic (containing many open spaces). These are often filled with concentrations of rare pegmatite-like mineral assemblages. This is also one of the best environments to locate gem quality material within a granitic environment, as well as concentrate other strategic and rare elements. Beryllium has yet to be sampled for in the claim area, however several known emerald and beryllium occurrences are noted to occur to the north of the claim area. These occurrences continue beyond the provincial border into the Yukon. DEPOSIT MODELS FOR EMERALD Two broad types of emerald deposits are recognized worldwide (Schwarz, D. and Guilani, G. (2001). The first type relates to the direct and local intrusion of granitic pegmatites within chromium and vanadium-bearing mafic and ultramafic rocks, sediments and metasediments. The second, rather broad in geologic setting (shales, low and high grade metasediments, greenstones, listwanites, suture zones), is linked to thrusts, faults and shear zones. Extended periods of fluid circulation in structurally permeable zones bring Be and Cr/V elements together from source rocks that may be far removed from each other. The common factor to both categories is the exchange of critical elements. The intersection of ultramafics and volatile granites, together with pathfinder elements, on an emerald exploration map suggests prospecting targets. Discoveries of phlogopite schist zones peripheral to small tourmaline or fluorine-bearing granitic bodies or pegmatite are of prime interest. Greisen alteration of ultramafics, presence of tourmaline, sericite, margarite or fuchsite in altered ultramafics or high fluorine in waters draining areas of ultramafic rocks may be a lead to emeralds, particularly if stream sediment analysis can also demonstrate elevated values of beryllium. The Hart project is extremely well positioned to host an exciting new Emerald discovery in British Columbia.
  • 7. “Near surface (epizonal) volatile granites, related pegmatites and griesen commonly contain miarolitic cavities…The volatile granites are more or less equivalent to the "fertile" granites that are parental to rare element pegmatites. Beryl is associated both with the LCT (Li-Cs- Ta) and NYT (Nb-Y-Ta) families of rare-element pegmatites that arise from fractionation of "fertile granites". In these families high field- strength elements (those with small radius but appreciable charge), such as niobium, tantalum, tin, tungsten, beryllium, respond in similar fashion to complex trends of fractionation and may be concentrated together with soluble alkali metals such as lithium, rubidium and cesium. The NYF family tends to be associated with alkaline rocks. Beryl may also be found in simple pegmatites though its gem varieties may be restricted….. …..Further to the south in the Cry Lake sheet much of the Sylvester allochthon is in direct contact with batholithic Cassiar rocks. In this area the leucocratic Hart pluton of Eocene age cuts ultramafics of the allochthon and fluorite is noted at the contact (Gabrielse 1998).” – A. Legun, BCGS, 2003
  • 8. The Hart project is a joint venture between Bestrocks Mineral Services and Rich River Exploration Ltd. This project is available for sale, joint venture, or option. For more information and to discuss participating in the exploration of this exciting new Rare Earth and Emerald exploration opportunity, please contact: J. Cameron Barker - Bestrocks Mineral Services 1170 Corcan Road, Qualicum Beach, BC, Canada, V9K 2R6 250-752-8522 Or Craig Lynes - Rich River Exploration Ltd PO Box 131, Grindrod BC V0E-1Y0 250-832-2089