The Rolls Royce showing area is underlain by marine sedimentary and volcanic rock of the Upper Triassic Stuhini Group. The stratigraphy is intruded by Eocene granite of the Major Hart Pluton and Early Jurassic monzodiorite to gabbro of the Texas Creek Plutonic Suite. Further west the area is underlain by Devonian to Permian sedimentary rocks of the Stikine Assemblage.
The Rolls Royce zone is dominantly underlain by altered and sheared, grey to brown, medium-grained andesitic tuff with pyrite and lesser pyrrhotite mineralization which is concentrated along shears and fractures. tuffaceous mudstone and siltstone The andesitic tuff is highly fractured and completely altered to clay in many places due both to deep surface weathering and hydrothermal alteration. The dominant fracturing and shearing strikes from 135 degrees to 150 degrees with a moderate to steep southwesterly dips. A second fracture set, probably conjugate to the first, strikes from 215 degrees to 235 degrees and dips moderately northwestward. Secondary quartz and pyrite occur as pods within the larger shear zones and as thin stringers along narrow shears and fractures. The quartz is often glassy in the narrow stringers and vuggy in the wider shear zones with goethite filling vugs. Pyrite (plus/minus pyrrhotite) occurs as small blebs within the quartz stringers, generally near the margins of the vein.
Twenty two samples were collected from the Rolls Royce zone during 1991, comprising two grab samples and twenty channel samples. The only sample that contained over 1000 parts per billion gold was number 9103-05 which was collected from trench Tr 91-01. It assayed an analysis of 2.76 grams per tonne gold and 0.81 grams per tonne silver across 1 metre (Assessment Report 21928). It was a sample of sheared, limonitic andesitic tuff with pods of vuggy quartz with pyrite.
Work History
In 1989, Royce Industries Inc acquired operation of the PL 7 to 11 claims and carried out property-wide mapping and prospecting. Gold mineralization was discovered in three zones, namely North Creek, Split Ridge and Split Creek canyon. The PL 12 and 13 claims were staked by the joint partners in February, 1990 to cover the drainages that yielded anomalous samples on the north side of North Creek and the projected trend of gold-zinc mineralization northwest of Split Creek canyon. During the 1990 field season, Royce Industries Inc. extended geological and geochemical coverage and evaluated the known showings. The results of this work downgraded the exploration potential of the Scotsimpson area and enhanced the Split Ridge showings. Hand trenching discovered lode gold mineralization at the Jefe zone on Split Ridge and a float sample containing 769.2 grams per tonne gold was discovered 400 metres north of the Jefe zone that led to the recognition of the Roll Royce zone. Further exploration was recommended to test the fracture-related lode gold mineralization at Split Ridge and to explore for volcanogenic massive sulphide (VMS) mineralization hosted by pre-Permian lithologies south and west of Split Creek. In March, 1991 the PL 14, 15, 16 and 17 claims were staked to cover adjacent open ground along Split Creek and along the geologic trend of the Paleozoic stratigraphy, northwest of the Split Creek canyon. In 1989 Royce collected 166 rock, 61 silt and 183 soil samples on their PL 7-11 claims. In 1990 Royce collected 158 rock, 1052 soil and 3 silt samples on their PL 7-13 claims. In 1991, Royce collected 62 rock, 41 silt and 10 soil samples on their PL 7-17 claims; 76 metres in 10 trenches were excavated.
In June 2006, Romios carried out soil geochemistry, mapping and prospecting on the Porc and Royce claims that covered much of the lapse PL 8, 10 and 11 claims that Royce Industries had previously held and worked. The Porc claims contain the Rolls Royce and the Jefe prospects.
In 2007 Romios Gold conducted their Aeromagnetic survey on their NW Block claims that once contained parts of the lapsed PL 7 and 13, 14, 16 and 17 claims (Assessment Report 21926 and 29696). They also held parts of those areas once held as Pl 8 and 10 claims but no aeromagnetic survey was done on those claims.
In 2007, Fugro Airborne Surveys Corp. was contracted to collect and process helicopter-borne magnetic and electromagnetic data over the Trek and RP properties (Royce and Porc), using their DIGHEM system. This survey totalled 696 kilometres.
In 2010, Romios completed property wide mapping and prospecting, follow-up of geophysical anomalies seen in 2007 airborne surveys and geochemical rock sampling. Airborne geophysics showed two regionally continuous linear breaks in magnetics and a second northwest trending feature that is cut by the northeast trending feature. Magnetic highs on the property appear to be elongate in a northwest/southeast direction with an increase in magnetic response in the southeast of the property. In total, 9 rock samples were collected from the area.
Over the 2011 season, Romios completed exploration efforts over the NW Block in the form of investigating mineral trends, intrusion genesis, and related geochemical rock sampling. A total of 9 additional rock samples were collected.
Also in 2011 season, Romios completed exploration efforts over the Royce and Porc claim. On the Royce Claim prospecting and geochemical soil sampling totaling 9 rock samples and 71 soil samples were collected. Prospecting confirmed the existence of the Jefe zone vein array.
During the 2012 exploration season, Romios Gold Resources conducted geochemical sampling and prospecting over the NW Block. Three rock samples were collected.
