The Anty area is underlain by a Carboniferous unit of the Stikine Assemblage consisting mainly of fine-grained, dark clastic sedimentary rocks and intercalated volcanics. They have been intensely folded and sheared with the consequent development of slaty cleavage and foliation. Secondary mica has formed in most of the sedimentary rocks giving it a phyllitic texture. The volcanic rocks have been converted to mainly greenstones and chlorite-amphibolite schists.
The main rock types present on the Anty claims consist of a monotonous succession of argillaceous schists and micaceous derivatives of silty to quartzitic sediments (micaceous quartzites). The argillaceous schists are in part limy and vary from mica-quartz schists with minor accessory minerals such as garnet and epidote to limy feldspathic siltstone with minor amounts of sericite and epidote. The micaceous quartzites vary from cherty argillite to sericite-quartz phyllite. Sills and irregular tabular andesitic bodies, generally less than 9 metres thick, intrude these meta- sediments.
Two predominant sets of faulting, one trending northwest and the other trending northeast, form part of the regional fracture system. Numerous branch faults, striking 335 to 360 degrees and dipping steeply to the east, occur along and parallel to axial planes of folds, and are generally accompanied by a zone of fracturing and shearing. These intersections are a favourable location for mineralization and generally occur in relatively brittle quartzites.
The Anty Creek fault is considered to be one of these branch faults. It hosts massive stibnite mineralization as well as disseminated stibnite and arsenopryite in quartz vein fissure fillings within the shear zone. Trenching in 1967, revealed a 107 metre zone of mineralization carrying massive and disseminated stibnite in a gangue of quartz within tightly folded micaceous quartzites and schists and is related to a pronounced northwest trending shear. Mineralization consists of fracture replacement over a width of 12 metres.
In 1965, a report stated that a section 33.5 metres long with an average width of 1.5 metres assayed 3.25 per cent antimony and another section 73 metres long with an average width of 1.6 metres assayed 9.5 per cent antimony (Minister of Mines Annual Report 1967).
In 1944, prospectors for the Leta Exploration group staked an occurrence of stibnite on the south bank of Stuhini Creek. In 1965, a report stated that a section 33.5 metres long with an average width of 1.5 metres assayed 3.25 per cent antimony, and another section 73 metres long with an average width of 1.6 metres assayed 9.5 per cent antimony (Minister of Mines Annual Report 1965). Clifford McNeil restaked the ground in 1965 as the Anty 1. In that year, 16 trenches were blasted and hand mucked. Samples from 15 of those trenches reported assays between 0.1 and 40.38 per cent antimony.
In 1966, the claims were transferred 50 per cent to Homestake Mineral Development Company and 50 per cent to New Taku Mines Limited. In 1967, Homestake geologist John Buchholz mapped and sampled the trenches as part of a reconnaissance program of the Anty group (Assessment Report 1165). Trenching in 1967 revealed a 107 metre long zone of mineralization carrying massive and disseminated stibnite in a gangue of quartz within tightly folded micaceous quartzites and schists that is related to a pronounced northwest trending shear. Mineralization consists of fracture replacement over a width of 12 metres.
Dominion Explorers Incorporated acquired the RNG and BR claims in 1986. In 1987, a crew was successful at locating, mapping and sampling a number of old trenches (Assessment Report 17051). Thirty samples were collected from old trenches. During the latter part of 1989 and early 1990, a lab test to determine the floatability of the stibnite was conducted by Dominion Explorers. A small geological/silt sampling program was also conducted in 1990. A report by Abolins (Assessment Report 20423) states “The Durham Mine floatation tests indicate that a fairly clean saleable concentrate can be produced.”
In the early to mid 2000s, the Anty area was staked as part of the Taku property owned by Optima Minerals Inc. The showing was not visited by Optima Minerals.
