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File Created: 13-Sep-1985 by Tom G. Schroeter (TGS)
Last Edit:  01-Apr-2025 by Del Ferguson (DF)

Summary Help Help

NMI 094E6 Cu6
Name ALBERTS HUMP, RANCH, AL 8, HUMP 81 GROUP, SESAME 82 GROUP, HUMP 84 GROUP, HUMP 86 GROUP, AL, AL 1-8, BERT, ERNIE, BULL, OSCAR FRACTION, HYUK 1,3 FRACTION, NII FRACTION Mining Division Liard
BCGS Map 094E043
Status Showing NTS Map 094E06W
Latitude 057º 28' 32'' UTM 09 (NAD 83)
Longitude 127º 25' 14'' Northing 6371425
Easting 594716
Commodities Silver, Copper, Zinc Deposit Types H05 : Epithermal Au-Ag: low sulphidation
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The ALBERTS HUMP occurrence is located 500 metres due east of the summit of Alberts Hump, south of Abesti Creek, and 3.2 kilometres west of the AL (Bonanza) occurrence (094E 079). Smithers is located 300 kilometres to the south. The occurrence lies within the Omineca-Cassiar Mountains in the west-central portion of the Toodoggone Gold Camp.

The Alberts Hump showing is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins. Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. Takla volcanics have been intruded by the granodiorite to quartz monzonite Black Lake Suite of Early Jurassic age and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The Adoogacho and Metsantan members of the Toodoggone Formation underlie the property. The Adoogacho Member consists of trachydacite ash-flow tuff with lenses of lapilli tuff, rare marlstone, and conglomerate near the base. The Metsantan Member is composed mainly of trachyandesite (latite) flows with lenses of lapilli tuff, and lahar; minor volcanic sandstone and conglomerate (Bulletin 86). The Metsantan Member, in part, directly overlies the basal Adoogacho Member and is also in fault contact with it. The Alberts Hump showing is underlain by a thick succession of primarily andesitic crystal and crystal lapilli tuff, tuff breccia, flows and associated hypabyssal phases (Assessment Report 11157). For a more detailed account of the local geology refer to the AL (Bonanza) occurrence (094E 079).

Numerous zones of intensive and extensive clay and quartz alteration occur in a 10 square kilometre area that roughly is bounded by Alberts Hump, Tuff Peak, and Metsantan Mountain. In these areas, the altered assemblages are most prevalent in flows of the Metsantan Member but transcends the contact and extends into underlying ash-flow tuffs of the Adoogacho Member near Alberts Hump. All the altered zones are related to and centred on faults. The alteration assemblages are typically zoned outward from a central core of microcrystalline silica, minor clay minerals and alunite, with or without pyrite, and trace anatase. Irregular cavities and narrow open fractures are lined with quartz druse and interlocking tabular barite crystals occur in massive zones of microcrystalline silica. Outward there is a transition to annular zones of predominantly dickite, nacrite, quartz and sodium-rich alunite, comprising argillic alteration. These argillic zones in turn grade outward into broad peripheral zones of propylitic alteration with chlorite, epidote, and carbonate replacing plagioclase and mafic phenocrysts and the matrix of rocks. Pyrite is widespread in concentrations up to 5 per cent (Bulletin 86).

The Alberts Hump prospect consists of one of these alteration zones and consists of a large irregularly shaped zone, roughly 1 square kilometre, of intensive and extensive clay and quartz alteration. Geochronological studies using alunite from the alteration zone at the Alberts Hump prospect yielded an age determination of 190 +/- 7 Ma (Bulletin 86) and is considered a minimum age of alteration and mineralization.

In 1972-73, Sumac Mines Ltd. was reported to have carried out work in the Alberts Hump area. In 1982, Texasgulf Canada Ltd. drilled two holes totaling 203.3 metres in the Alberts Hump area. The drillholes intersected a hypabyssal intrusion at depth with moderate pyrite concentrations. Assay results from these two drillholes did not yield any anomalous gold, but did show weak to moderate silver anomalies. A one-metre interval from drillhole A82-11 analyzed an average weighted value of 3.75 grams per tonne silver from 15 to 16 metres (Assessment Report 11157).

In 2007, Christopher James Gold Corp. completed a helicopter-borne magnetic gradiometer survey consisting of 2229 line-kilometres over all historic gold deposits and MINFILE occurrences on the property, including the Alberts Hump area. Maps completed include Coloured Total Magnetic Intensity, Measured 3-D Analytic Signal, Measured Vertical Magnetic Gradient, and Colour-shaded Tilt Derivative of the Total Magnetic Intensity.

From 2020 through 2023, Thesis Gold Inc. completed programs of prospecting, mapping, geochemical (rock and soil) sampling, ground and airborne geophysical surveys, re-logging/re-sampling of historical drill core, and extensive digitization and compilation of existing exploration data on their Ranch property. From 2021 to 2023, 368 diamond drill holes, totaling 68,481.6 metres were completed on the Ranch property, with the majority of the drilling targeting the major prospects of Bonanza, Ridge, Bingo, Thesis II, Thesis III, BV, JK and Eric. Metallurgical testing and environmental monitoring/baseline and geotechnical studies and infrastructure upgrading were also initiated during this period, along with First Nations consultations. Drilling at the major prospects on the Ranch property expanded the known mineralized zones along strike and at depth.

In 2022, 5 diamond drill holes were completed for a total of 2,604 metres at the Alberts Hump occurrence. Drill holes intersected intense quartz-alunite alteration from surface to depths of 150 metres, but did not encounter anomalous gold. Three drill holes intersected base metal values in narrow quartz veins below 400 vertical metres, consistent with low sulphidation epithermal systems. Drill hole 22ABHDD002 intersected 2.19 metres grading 0.51 per cent copper from 558 to 560.19 metres downhole, while hole 22ABHDD003 intersected 2.13 metres grading 3.02 per cent zinc from 426.52 to 428.65 metres downhole (Assessment Report 41940).

In August 2023, Benchmark Metals Inc. merged with Thesis Gold Inc., joining the Lawyer Project, located in similar Toodoggone Formation rocks to the southeast, with Thesis Gold's Ranch Project.

A NI 43-101 & 43-101F1 Technical Report and Updated Mineral Reserve Estimate of the Lawyer-Ranch Gold-Silver Project was prepared for Thesis Gold Inc. by P & E Mining Consultants Inc. in May 2024 and an updated Preliminary Economic Assessment (PEA) was completed for the Lawyers-Ranch Project by JDS Energy & Mining Inc. effective August 30, 2024.

In 2024, drilling at the Ranch property was designed to advance engineering and environmental baseline studies in preparation for a Prefeasibility Study led by Ausenco Engineering Canada ULC and Mining Plus Canada Consulting Ltd. with 2,226 metres of drilling focused on geotechnical and hydrogeological studies (Thesis Gold Inc. Press Release Feb. 18, 2025).

See Bonanza (094E 079) for details of the Ranch (Al) property which presently contains the Alberts Hump showing (2025) and discusses the work done on it.

Bibliography
EMPR BULL *86
EMPR EXPL 1975-E163-E167; 1976-E175-E177; 1977-E216-E217; 1978-E244-E246; 1979-265-267; 1980-421-436; 1982-330-345; 1983-475-488; 1984-348-357; 1985-C349-C362; 1986-A16; C388-C414; 1987-C328-C346; 1988-C185-C194
EMPR FIELDWORK 1980, pp. 124-129; 1981, pp. 122-129, 135-141; 1982, pp. 125-127; 1983, pp. 137-138, 142-148; 1984, pp. 139-145, 291-293; 1985, pp. 167-169, 299; 1987, pp. 111, 114-115; 1989, pp. 409-415; 1991, pp. 207-216
EMPR GEM 1969-103; 1971-63-71; 1973-456-463
EMPR GEOLOGY 1977-1981, pp. 156-161
EMPR MAP 61 (1985)
EMPR PF (Photogeologic Interpretation Map of the Northern Omineca area, Oct. 1964, Canadian Superior Exploration Limited-in 94E General File)
GSC BULL 270
GSC OF 306; 483
GSC P 76-1A, pp. 87-90; 80-1A, pp. 27-32
ECON GEOL Vol.86, pp. 529-554, 1991
GCNL #145,#147,#183,#192, 1984; #23(Feb.1), 1985; #165(Aug.27), 1986
IPDM Nov/Dec 1983
MIN REV September/October, 1982; July/August, 1986
N MINER July 12,26, Aug.2, Sept.20, 1984; October 13, 1986
N MINER MAG March 1988, p. 1
WIN Vol.1, #7, June 1987
W MINER April, 1982
P&E Mining Consultants Inc., NI 43-101 and 43-101F1 Technical Report and Updated Mineral Resource Estimate for Lawyers-Ranch Gold-Silver Project, for Thesis Gold Inc., Report 458, May 1, 2024
JDS Energy & Mining Inc., Updated Preliminary Economic Assessment for Lawyers-Ranch Project, for Thesis Gold Inc., August 30, 2024
Forster, D.B. (1984): Geology, Petrology and Precious Metal Mineralization, Toodoggone River Area, North-Central British Columbia, Unpub. Ph.D. Thesis, University of British Columbia
Diakow, L.J. (1990): Volcanism and Evolution of the Early and Middle Jurassic Toodoggone Formation, Toodoggone Mining District, British Columbia, Ph.D. Thesis, University of Western Ontario
Falconbridge File
Chinapintza Mining Corp. (2020-09-18): NI 43-101 Technical Report, Geological Introduction to Chinapintza Mining Corp.'s Ranch Gold Project, Toodoggone Region, British Columbia, Canada
Chinapintza Mining Corp. (2021-06-22): Amended Technical Report: NI 43-101 Technical Report, Geological Introduction to Chinapintza Mining Corp.’s Ranch Gold Project, Toodoggone Region, British Columbia, Canada

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