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File Created: 19-Dec-2013 by Karl A. Flower (KAF)
Last Edit:  15-Jul-2022 by Del Ferguson (DF)

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NMI
Name DELLA, DAHL, PF-3, VANHALL, CHUM, TIB, TIBOR Mining Division Alberni
BCGS Map 092E100
Status Showing NTS Map 092E16E
Latitude 049º 56' 08'' UTM 09 (NAD 83)
Longitude 126º 00' 17'' Northing 5535767
Easting 714933
Commodities Iron, Copper, Silver Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Della occurrence is located on Della (Dahl) Creek, an east flowing tributary of Vanstone (Horseshoe) Creek, approximately 17 kilometres north-northeast of the town of Gold River.

The majority of the property is underlain by grey-green weathering, quartz-calcite amygdaloidal basalt of the Upper Triassic Karmutsen Formation. The basalt sequence is cut by five distinct intrusive suites, which include: lamprophyre dykes; medium-grained, equigranular granodiorite dykes; strongly feldspar-hornblende porphyritic dykes of intermediate composition; a fresh, hornblende granodiorite stock of likely Early Cretaceous age; and a small, poorly exposed stock, or dyke, of dioritic composition near the north-west corner of the property. Silicification, chloritization and epidotization are observed.

Locally, narrow veins or lenses of magnetite, pyrite, chalcopyrite and associated epidote are exposed. In 1972, a sample (PF-3) assayed 47.46 per cent iron, 0.37 per cent copper, 3.1 grams per tonne silver and trace gold; other samples (DA-1) from the area yielded up to 0.90 per cent copper (Assessment Report 3953).

In 1969 and 1972, Moresby Mines completed programs of geological mapping and rock and soil sampling on the area as the Vanhall claims. In 1980 and 1981, Eastern Leaseholds completed programs of soil sampling and airborne electromagnetic and magnetic surveys. During 1994 through 1997, Cominco completed programs of geological mapping, geochemical sampling and ground magnetic and electromagnetic surveys on the area as the Chum claims. In 2011, Universal Ventures Inc. completed a program of geochemical sampling, geological mapping and an airborne geophysical survey on the area as the Tib claims, Tibor property.

In 2017 and 2018 an interpretive study followed by limited rock sampling was conducted in the Vanstone Creek area by tenure holder K. Galambos (Assessment Reports 37381, 38287).

Bibliography
EMPR ASS RPT 2436, *3953, 8065, 9151, 23654, 24178, 25248, 32983, *37381, *38287
EMPR EXPL 1980-175; 1981-7
EMPR GEM 1972-263
GSC OF 463
GSC P 68-50; 70-1,part A-44; 72-44; 80-16
CIM TRANS VOL 72-116
GCNL #44, 1982
Carson, D.J.T., (1968): Metallogenic Study of Vancouver Island with emphasis on the Relationship of Plutonic Rocks to Mineral Deposits, Ph.D. Thesis, Carleton University, Ottawa
EMPR PFD 671455, 671456, 671457

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