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File Created: 17-May-2012 by George Owsiacki (GO)
Last Edit:  22-May-2020 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name LYDDEN, GEORGIE RIVER, DEANER, JC, JJ, JO Mining Division Skeena
BCGS Map 103O080
Status Prospect NTS Map 103O09E
Latitude 055º 43' 59'' UTM 09 (NAD 83)
Longitude 130º 05' 41'' Northing 6176925
Easting 431265
Commodities Copper, Gold, Silver Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Coast Crystalline Terrane Stikine, Plutonic Rocks
Capsule Geology

The Lydden occurrence is located between the Portland Canal and the Georgie River, about 20 kilometres south-southeast of the town of Stewart.

The showing area is underlain by fine to medium grained andesitic volcanic rocks of the Lower Jurassic Hazelton Group (Unuk River Formation) intruded by dioritic rocks of the Eocene Coast Plutonic Complex.

Mineralization at the Lydden showing is described as a 'copper vein', assumed to be quartz with massive chalcopyrite and pyrite, hosted in andesitic volcanics near a contact with mafic diorite. Some disseminated chalcopyrite also occurs near the andesite-diorite contact. At the Lydden showing, a rock chip sample (259424) assayed 1.02 grams per tonne gold and 3.87 per cent copper, and sample 259425 analysed 3.65 per cent copper, both over 1 metre width. Sample 43162 collected from the north end of the showing yielded 59.1 grams per tonne silver and 5.25 per cent copper. Two grab samples collected 25 and 35 metres up the creek (north) of the showing, 43163 and 43164, assayed 1.84 and 1.09 per cent copper, respectively (Assessment Report 29656).

Exploration work to delineate the Lydden vein and explore for more similar veins in this area resulted in mineralization found about 200 metres up strike of the vein. The massive sulphide showing, Deaner, was found to the northwest of the Lydden. The Deaner showing is at least 20 metres in length and up to 1 metre wide, but generally less than 30 centimetres. Two grab samples and a 1 metre chip sample returned just over 1 per cent copper (samples 43162, 43163 and 43166; Assessment Report 29656).

In 1926, exploration in the immediate area of the property began when the copper vein (Lydden prospect) was discovered; trenching was carried out at this time. In 1962, Newconex Explorations optioned the claims covering the Lydden prospect from A. Teed and conducted prospecting, geological mapping and magnetometer surveying. This work outlined three zones of copper mineralization: disseminated copper grading up to 0.46 per cent on an andesite-mafic intrusive contact; the Lydden showing, exposed for 27 metres, with values to 27 grams per tonne gold and 10.27 per cent copper over 0.6 metre; and a 0.6 metre wide zone on the west side of a feldspar porphyry dike, located 150 metres north and 60 metres west of the Lydden showing, assaying 1.07 to 4.23 per cent copper. In 1963, Newconex conducted a grid controlled geochemical soil survey, electromagnetic (EM) survey and magnetic survey; no obvious EM or geochemical anomalies were outlined. From 1963 to 1973, Zodiac Mines Ltd. and C & P Mining Co. Ltd. held the claims but no recorded work has been found. In 1973, Inland Copper Ltd. conducted a work program consisting of sampling the two main copper showings. Sampling indicated trace to 0.6 gram per tonne gold, 0.03 to 5.6 grams per tonne silver and 0.21 to 4.75 per cent copper over widths from 0.9 to 1.5 metres. In 1979-80, J. Berkosha held the area but no work was recorded. In 1983, Pacific National Explorations Limited carried out geological mapping in the claim area. In 1990, Navarre Resource Corporation carried out geological and geochemical surveys. In 2006-07, Auramex Resource Corp. conducted a geological and geochemical program that comprised the collection of 19 pan concentrate samples, 10 silt samples and 32 rock samples. Follow-up trenching and detailed chip sampling was carried out on the mineralized vein and further work to delineate the vein and explore for more similar veins in the area included grid controlled soil geochemical and ground magnetic and VLF-EM surveys. The Deaner showing was discovered in 2007.

Bibliography
EMPR ASS RPT *489, 522, *4820, *28662, *29656
EMPR FIELDWORK 1990, pp. 235-243; 2005, pp. 1-4
EMPR MAP 8
EMPR OF 1986-2; 1994-14
GSC MAP 1385A
GSC OF 864; 2996; 3453
*Metcalfe, P. (2013-02-28): Technical Report on the Georgie River Property
EMPR PFD 820191

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