MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 082LSW009

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	29-Sep-2019	by	Karl A. Flower (KAF)

SUMMARY

Summary Help


		NMI
Name	TADPOLE, DOBBIN, NIGHT OWL, BARD, ALFY, BEAR, TAD 1, TAD	Mining Division	Vernon
		BCGS Map	082L002
Status	Prospect	NTS Map	082L04W
Latitude	050º 01' 29''	UTM	11 (NAD 83)
Longitude	119º 47' 24''	Northing	5545109
		Easting	300165
Commodities	Molybdenum	Deposit Types	L03 : Alkalic porphyry Cu-Au
Tectonic Belt	Intermontane	Terrane	Plutonic Rocks, Harper Ranch

Capsule Geology

The Tadpole (Dobbin) molybdenum occurrence is located west of Tadpole Lake, approximately 26 kilometres northwest of Kelowna.

The area is underlain by Devonian to Triassic Harper Ranch Group argillaceous rocks, basalt tuffs and flows, and minor rhyolite and limestone. These are intruded by Middle Jurassic ultramafic/monzonite and calc-alkaline complexes of the informally named Terrace Creek Batholith.

Locally, molybdenum mineralization is hosted by a north-northwest–trending composite plug, of calc-alkaline composition, approximately 1.5 by 4 kilometres in area. The plug consists of a porphyritic quartz monzonite core bordered by quartz monzonite. Within the porphyry is an irregular 800 by 1900 metre zone of chlorite and sericite alteration. A zone of molybdenum mineralization 200 to 600 metres wide by 800 metres long and at least 100 metres deep occurs within the altered zone. A stockwork of quartz veinlets, from 0.5 to 1 centimetre thick, carries disseminated pyrite and molybdenite. Secondary potassium feldspar and chlorite border the veinlets. The mineralized zone is open at depth and has a shallow plunge to both the north and south.

In 1978, percussion drilling yielded up to 0.061 per cent molybdenum over 54 metres, including 0.123 per cent molybdenum over 12 metres in hole PDH-78-3, whereas other holes yielded from 0.030 to 0.274 per cent molybdenum over 3-metre widths (Property File - Verdstone Gold Corporation [1997-03-27]: Summary Report on the Dobbin-Tadpole Copper and Molybdenum Properties).

In 1980, percussion drilling yielded up to 0.044 per cent molybdenum over 92 metres in hole PDH-80-16 and 0.17 per cent molybdenum over 21 metres in hole PDH-80-4 (Verdstone Gold Corporation [1997-03-27]: Summary Report on the Dobbin-Tadpole Copper and Molybdenum Properties).

In 2000, a possible estimated resource of 150 000 000 tonnes averaging approximately 0.045 per cent molybdenum was reported (Property File - Verdstone Gold Corp. [2000-04-17]: Summary Review of the Dobbin Property).

In 1967, Phelps Dodge Corporation carried out soil geochemistry. In 1968 and 1969, Texas Gulf Sulphur Co. carried out a program of geological mapping, ground magnetometer surveying, soil geochemistry testing and drilling. During 1977 through 1980, Cominco carried out programs of geological mapping, ground magnetometer surveying, soil geochemistry testing, induced polarization surveying and percussion drilling. During 1997 through 2003, Verdstone Gold Corporation and Molycor Gold Corporation examined the area.

Bibliography

EMPR AR 1968-223

EMPR ASS RPT 1896, *7269, *7596, *8456, 8664

EMPR EXPL 1978-E93, 1979-9,101

EMPR FIELDWORK 1987, pp. 55-58; 1988, pp. 355-363; 2000, pp. 191-222

EMPR GEM 1969-299,300;

EMPR MAP 5207G, 7216G

EMPR OF 1989-5, 1990-30

EMPR PF (Unknown [unknown]: Claim Map - My, Dobbin and Tadpole; Unknown [unknown]: Claim map of Dobbin, Dobbin 2, Dobbin 3 with respect to Whiterocks Mountain, Figure 1; Unknown [unknown]: Claim map of Whiterocks, Dobbin; W.G. Hainsworth [unknown]: Collection of Sketches and Amended Maps - My Claims and Tadpole Lake Project; unknown [unknown]: Geochemical Map Copper ppm in soils, Whiterocks Mtn. Property; Amex Exploration Services Ltd. [unknown]: Greg and Schell's Whiterocks Mountain Property Map; Amex Exploration Services Ltd. [unknown]: Greg and Schell's Whiterocks Mountain Property Map with notes; Amex Exploration Services Ltd. [unknown]: Greg and Schell's Whiterocks Mountain Property Map with notes; unknown [unknown]: Negative of Whiterocks Claim Map; unknown [unknown]: Property Map of Whiterocks Mountain with notes; W.G. Hainsworth [unknown]: Tadpole Lake MoS2 Compilation Map; M.E. Coates [1969-01-01]: Whiterocks Project Geology 1969, with letters, assays and notes; J.B.P. Sawyer [1969-08-06]: Report on Whiterocks Mountain Copper Prospect; I. Greg [1969-08-27]: Preliminary Geological Map showing workings Whiterocks Mtn. Property; C.A.R. Lammle [1969-08-27]: Preliminary Geological Report on Whiterocks Mountain Property; John S. Brock [1969-09-01]: Whiterocks Project Report: Bear, Charlie, Pop & Alfy Mineral Claims; A.E. Aho [1969-09-08]: White Rocks Mountain (Bear Mountain) Nr. Kelowna, BC. Preliminary examination; Unknown [1970-01-01]: Geological Worksheets: Whiterocks; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Profile (Mag.) Map Figure 8; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Geophysics (Mag.) Figure 7; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Geological Figure 2; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Geochemistry (Ni) Figure 6; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Geochemistry (Mo). Figure 5; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Geochemistry (Cu) Figure 4; Atlas Explorations Ltd. [1970-01-11]: Whiterocks Mtn. Program Geochem. (Cu, Mo, Ni (ppm)) Figure 3; Atlas Explorations Ltd. [1970-01-11]: Geochemical and Geophysical Compilation Map, Whiterocks Mtn. program, Figure 9 with notes; Atlas Explorations Ltd. [1970-01-11]: Geochemical and Geophysical Compilation Map, Whiterocks Mtn. program, Figure 9 showing proposed diamond drillholes; Atlas Explorations Ltd. [1970-01-11]: Geochemical and Geophysical Compilation Map, Whiterocks Mtn. program, Figure 9; J.G. Baird [1970-01-19]: Report on an induced polarization survey Whiterocks Project; M.E. Coates [1970-01-22]: Geology, Geochemistry and Geophysics of the Dobbin Groups I, II & III; ; Atlas Explorations Ltd. [1970-02-20]: Whiterocks Mtn. Program Plan, Sections and Specifications for Proposed Diamond Drilling Figure 10; Loring Laboratories Ltd. [1970-05-19]: Certificates of Assay - Whiterocks; unknown [1970-05-19]: Diamond Drill Record, Whiterocks Project Dobbin Group; unknown [1970-05-21]: Diamond Drill Record, Whiterocks Mountain Property; unknown [1970-05-21]: Diamond Drill Record, Whiterocks Mountain Dobbin Group; unknown [1970-05-25]: Diamond Drill Record, Whiterocks Mountain Property; unknown [1970-06-02]: Diamond Drill Record, Whiterocks; M.E. Coates [1970-06-10]: Report on Diamond Drilling Dobbin Claim Groups; Atlas Explorations Ltd. [1970-07-12]: Property Examination - 82-L-4 Property #4 Whiteman Creek Stock; unknown [1970-06-02]: Diamond Drill Record, Whiterocks; T. Coates [1970-10-02]: Letters and notes on Whiterocks; Cominco Ltd. [1980-10-20]: Assessment Report of Percussion Drilling on the Dobbin Property; unknown [1987-07-17]: Sketch Maps - Mount Eileen area; Verdstone Gold Corporation [1997-01-01]: Collected Press Releases - Dobbin Project, Porphyry Copper and Platinum-Palladium Showing; *Verdstone Gold Corporation [1997-03-27]: Summary Report on the Dobbin-Tadpole Copper and Molybdenum Properties; *Verdstone Gold Corp. [2000-04-17]: Summary Review of the Dobbin Property)

EMPR RGS 1976

GSC MAP 1712A

GSC MEM 296

GSC OF 637 (Map C), 736, 2167

GSC P 89-1E pp. 51-60

GCNL #186 (Sept.26), 1997

PR REL Verdstone Gold Corporation, Sept.24, 1997

EMPR PFD 4546, 811641, 811642, 811643, 811644, 811649, 811651, 811652, 811655, 811654, 811656, 811658, 811659, 811660, 811661, 811662, 811663, 811664, 811665, 811666, 811667, 811675, 811674, 811673, 811672, 811671, 811670, 811669, 811668, 811676, 811678, 811679, 811680, 811681, 811682, 811683, 811684, 811685, 811686, 811688, 811687, 909189, 882340, 888463, 800582, 800584, 800586, 800587, 800588, 825541