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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Jun-2007 by Sarah Meredith-Jones (SMJ)

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NMI 092I9 Cu12
Name ORPHAN BOY Mining Division Kamloops
BCGS Map 092I068
Status Showing NTS Map 092I09W
Latitude 050º 38' 51'' UTM 10 (NAD 83)
Longitude 120º 24' 05'' Northing 5613849
Easting 683709
Commodities Copper, Gold, Silver Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

A shaft at the Orphan Boy showing, now flooded (ca. 1903), was reported to be 12 metres deep with a crosscut at the bottom exposing a body of pyritic ore 6 metres wide between well defined diorite walls, assaying well in copper, gold and silver. The hostrock diorite is part of the Cherry Creek unit of the Late Triassic-Early Jurassic Iron Mask batholith. Mineralization consisted of a massive chalcopyrite vein (2.1 metres wide) and disseminated pyrite (Minister of Mines Annual Reports 1903, 1907). In 1956, opencutting about 6 metres from the shaft has exposed an oxidized vein of sulphides that follows an east-striking shear. Fifteen metres north of the vein, which occurs in diorite with pink veins, a sheared contact of picritic basalt (Picrite unit of the Iron Mask batholith) and diorite is exposed. This contact is again visible 122 metres to the southeast, but at neither place is mineralization evident. Makaoo Development Company Limited drilled two surface holes (Nos. 23 and 24) northeastward to test this contact at greater depth. The core of No. 23, the only one examined, failed to show appreciable mineralization. The shear zone was intersected in this hole at a vertical depth of 61 metres (Minister of Mines Annual Report 1956). A large number of trenches have been dug across the prevailing strike between the Orphan Boy workings and a point 792 metres easterly of the Python shaft (092INE002).

See the adjacent Python property (092INE002) located 250 metres east for a detailed work history of the area.

In 1964-65, Rolling Hills Copper Mines Limited conducted 14.9 line kilometres of induced polarization survey over widely spaced lines (914 metres apart), 102.8 kilometres of ground magnetometer survey and 68.4 kilometres of linecutting on their large holding of claims.

EMPR AR *1903-H180; *1904-G231; 1906-H176; *1907-L131; *1956-47-54,
EMPR GEM 1973-198
EMPR ASS RPT 605, 640, 742
GSC OF 165; 980; 2490
GSC MAP 886A; 887A; 9-1963; 1394A; 42-1989
GSC P 44-20; 82-1A, pp. 293-297; 85-1A, pp. 349-358
EMPR PFD 810691, 673548