The Orion was termed Teuton’s “best property” by a former employee, geologist Dr. Krysztof Mastalerz, because of its potential for hosting Eskay Creek-type mineralization.
This very large property lies to the south of Teuton’s High North property and covers the southern end of the McTagg anticlinorium, a regional structure which hosts all of the various copper-gold deposits of the KSM property to the north. The western half of the property occupies a substantial portion of the Eskay rift.
The prominent feature of the eastern part of the property is a nunatak (rock island surrounded by ice) which rises out of the upper reaches of the Frank Mackie glacier, broadening to the north. The nunatak is comprised of extensive felsic volcanics overlain by fine, carbon-rich sediments, both mapped as of Jurassic age. The felsics are often gossanous, portions of which consist of flow-banded rhyolites and flow breccias, strongly silicified and pyritized in places. The stratigraphic intervals appear to repeat.
Within the rhyolites two occurrences have been discovered to date, both gold bearing. The larger of the two is the Cat-in-the-Hat Showing consisting of a 15m wide zone of quartz-pyrite-arsenopyrite veinlets in a rhyolite breccia. A 13m trench excavated in 1994 across the structure returned a weighted average of 0.074 opt gold and 1.36% arsenic from 13 lm chip samples. The showing was drilled in 2007 with five short holes, disclosing much narrower widths of gold mineralization than observed on surface. A much smaller gold-bearing arsenopyrite occurrence has been uncovered to the north (the “13” showing).
Small-scale prospecting programs tested portions of the property intermittently from 1995 to 2007. These uncovered anomalous gold values in the rhyolite breccias as well as in pyritic sericite schists. Native sulfur was discovered in one location suggesting an acid sulfate environment such as occurs at higher altitude on the Treaty Creek central gossan. Cinnabar or realgar was also discovered in another location. In 2006, a semi-massive float sample of a silicified volcaniclastic was taken which ran 6.02 g/t gold and 20.3 g/t silver but its source could not be determined.
Across the ice from the nunatak to the southwest, rocks consist of basalt lava and pillow lava flows, and thick hyaloclastite units of andesitic volcanics. The andesites are silicified and locally form gossans. Two grab samples taken from one of the gossanous areas in 2006, which appeared to have only recently emerged from under snow and ice, ran 0.75 g/t Au and 41.0 g/t Ag and 0.48 g/t Au and 53.4 g/t Ag. No further work has been done on this exposure.