Gold Canyon Resources: Rare Earth Elements Associated With Gallium at Cordero.Business Editors VANCOUVER, British Columbia--(BUSINESS WIRE)--March 7, 2002 Gold Canyon Resources Inc. (CDNX CDNX See Canadian Venture Exchange (CDNX). :GCU) (the "Company") is pleased to confirm that, as previously announced, certain Rare Earth Elements (REE's) are present in anomalous to highly anomalous amounts at the Company's Cordero Gallium Project, Nevada. The REE's cerium cerium (sēr`ēəm) [from the asteroid Ceres], metallic chemical element; symbol Ce; at. no. 58; at. wt. 140.12; m.p. 799°C;; b.p. 3,426°C;; sp. gr. 6.77 at 25°C;; valence +3 or +4. , neodymium neodymium (nē'ōdĭm`ēəm), metallic chemical element; symbol Nd; at. no. 60; at. wt. 144.24; m.p. about 1,021°C;; b.p. about 3,068°C;; sp. gr. 7.004 at 20°C;; valence +3. Neodymium is a lustrous silver-yellow metal. , lanthanum lanthanum (lăn`thənəm) [Gr.,=to lie hidden], metallic chemical element; symbol La; at. no. 57; at. wt. 138.9055; m.p. about 920°C;; b.p. about 3,460°C;; sp. gr. 6.19 at 25°C;; valence +3. and gadolinium gadolinium (gădəlĭn`ēəm), metallic chemical element; symbol Gd; at. no. 64; at. wt. 157.25; m.p. 1,312°C;; b.p. 3,233°C;; sp. gr. 7.898 at 25°C;; valence +3. show a consistent, strong, positive relationship to all of the gallium intervals examined. Samarium samarium (səmâr`ēəm), metallic chemical element; symbol Sm; at. no. 62; at. wt. 150.36; m.p. 1,072°C;; b.p. 1,791°C;; sp. gr. 7.54 at 20°C;; valence +2 or +3. Samarium is a lustrous silver-white metal. , holmium, erbium, ytterbium ytterbium (ĭtûr`bēəm) [for Ytterby, a town in Sweden], metallic chemical element; symbol Yb; at. no. 70; at. wt. 173.04; m.p. 819°C;; b.p. about 1,194°C;; sp. gr. about 7.0; valence +2 or +3. , lutetium lutetium, formerly lutecium (both: l tē`shēəm), metallic chemical element; symbol Lu; atomic number 71; at. wt. 174.967; m.p. about 1,663°C;; b.p. and
thulium thulium (th `lēəm) [from Thule, an ancient name for Scandinavia], metallic chemical element; symbol Tm; at. no. 69; at. wt. 168.9342; m.p. about 1,545°C;; b.p. show weak positive anomalies in approximately 20% of the gallium
intervals examined.The length weighted average concentrations of REE's which exhibit a positive association with gallium for previously reported, second order included drill intercepts, (those intercepts generally exceeding 50 grams gallium per Metric Tonne) is summarized below in Table 1: Table 1. Average Content, Positively Associated REE's and Exotic Metals for +50 gr/T Gallium intercepts from 2001 RC Drilling Program Element Content (grams per Metric Tonne) Gallium (Ga) 141.4 Cerium (Ce) 497.2 Neodymium (Nd) 165.5 Lanthanum (La) 174.0 Gadolinium (Gd) 34.3 Samarium (Sm) 50.0 Holmium (Ho) 17.2 Erbium (Er) 17.3 Ytterbium (Yb) 17.3 Lutetium (Lu) 6.1 Thulium (Tm) 10.5 REE's and other elements occurring in spatial association with the gallium represent potential by-product or co-products, with potential to add incremental value to the project if these elements can be economically recovered and marketed. At this time, however, there can be no assurance given that the Company will be able to extract or refine economically any of these elements associated with the gallium, or that the Company will be able to market successfully these metals if extracted. Sample Chain of Custody The movement and location of physical evidence from the time it is obtained until the time it is presented in court. Judges in bench trials and jurors in jury trials are obligated to decide cases on the evidence that is presented to them in court. , Preparation and Analysis All drill samples represent five foot drill intervals. Drilling was reverse circulation (RC) type drilling, completed with an MPD MPD maximum permissible dose. MPD abbr. 1. maximal permissible dose 2. multiple personality disorder Multiple personality disorder (MPD) 1000 track mounted RC drill, manufactured by Drill Systems of Canada. The drill was owned and operated by Drift Exploration of High River, Alberta High River is a town in southwestern Alberta, Canada with a population of 10,716. (2006). It is km ( mi) south of the city of Calgary, at the junction of Alberta Highways 2 and 23. , Canada. All samples were collected by the drilling contractors personnel under the supervision of Gold Canyon geologists. These samples were then collected from the drill sites by Inspectorate Rocky Mountain personnel, again under the supervision of Gold Canyon personnel, and transported to Inspectorate Rocky Mountain's Reno laboratory facility. Samples were then dried and stage crushed to 80% minus 10 mesh. A 300 gram sample was then riffle split and pulverized to minus 200 mesh in a ring and puck type pulverizer. Inspectorate's Rocky Mountain Geochemical laboratory in Reno, Nevada, analyzed these pulps for gallium and certain other elements by acid digestion and Inductively Coupled Plasma An inductively coupled plasma (ICP) is a type of plasma source in which the energy is supplied by electrical currents which are produced by electromagnetic induction, that is, by time-varying magnetic fields. (I.C.P.), at their Reno facility. A representative split of the original pulp was then sent to Inspectorate's New Orleans, La facility for analysis of REE's and certain other Exotic Metals by means of X-ray Floresence (XRF). For the purpose of this study, gallium values obtained by I.C.P. analysis were used to define the intervals examined for potential co-product concentrations of rare earth elements (REE's). For reference, Table 2 below shows the relative crustal abundance for rare earth elements (REE's) and gallium.
Table 2. Average Abundance (in Parts per Million) of Rare Earth
Elements & Gallium in the Earth's Crust and three Common Rocks.
(Krauskopf, 1979)
Element Crust Granite Basalt Shale
Cerium 70 50 100 90
Neodymium 30 35 20 30
Lanthanum 35 55 10 40
Gadolinium 7 8 6 6
Erbium 3.5 4.5 3 3.5
Samarium 7 9 5 7
Holmium 1.5 2 1 1.5
Europium 1.2 1 1.5 1.4
Thulium 0.5 0.6 0.5 0.6
Ytterbium 3.5 4 2.5 3.5
Yttrium 35 40 30 35
Lutetium 0.6 0.7 0.5 0.6
Thorium 8.5 20 1.5 12
Praseodymium 8 10 4 9
Thallium 0.8 1.2 0.2 1
Selenium 0.05 0.05 0.05 0.6
Dysprosium 6 6.5 4 5
Terbium 1 1.5 0.8 1
Gallium 18 18 18 25
Note: 1ppm = 1 gram per Metric Tonne,
1 Metric Tonne = 2,200 pounds = 1.1 US tons.
Additional information about REE's including historical price information can be found on the United States Geological Website at http://www.minerals.usgs.gov/minerals/pubs/metal_prices/ REE contents for previously announced drill intercepts will be posted on the Company's website at, http://www.gcu-vse.com. For those unfamiliar with Gold Canyon, or the Company's projects, additional information can be found on the Company's website: http://www.gcu-vse.com. GOLD CANYON RESOURCES INC. Michael Levinson, Chairman of the Board, President & Director Robert Carrington, Chief Executive Officer The Canadian Venture Exchange The Canadian Venture Exchange (CDNX) is now a defunct stock exchange having been acquired by the TSX Group in 2001 and renamed the TSX Venture Exchange. History of the Canadian Venture Exchange (CDNX) has not reviewed and does not accept responsibility for the adequacy or accuracy of the content of this news release. |
|
||||||||||||||

tē`shēəm)
Printer friendly
Cite/link
Email
Feedback
Reader Opinion