The North Scud occurrence is located along the western edge of the Scud glacier roughly 10 kilometres north of the glacier toe.
The showing is hosted within a thick succession of volcanic rocks that have been tentatively correlated with the Upper Triassic Stuhini Group. The sequence is over 400 metres thick consisting of andesitic to basaltic, often pyroxene porphyritic flows which are commonly epidote and chlorite altered. Green to red ash tuffs also occur within the flows. A 100 metre section of volcanic conglomerate to breccia overlies the basal flows and tuffs. Andesitic and lesser granodioritic clasts occur in a fine, tuffaceous groundmass and can be up to 10 centimetres across. Epidote and chlorite alteration of these rocks is also common. The top of the volcanic pile consists of green to red tuff and lapilli tuff.
Apparently overlying these rocks is a thick sequence of tightly folded metasediments. Argillite, black phyllite and variably recrystallized black limestone occur. Green calcareous tuff with small interbeds of white limestone dominate in the west half and form the uppermost part of the sequence. Small isoclinal folds trend north. The correlation of these rocks with the Stuhini Group is less certain.
Middle Jurassic medium-grained, equigranular granodiorite occurs just north of the occurrence and the distinctive salmon pink granite of the Middle Jurassic Yehiniko pluton occurs to the west and east of the occurrence.
Mineralization occurs mainly in the basal andesite flows, tuffs and breccia. Four showings consist of massive seams of chalcopyrite and bornite with or without magnetite which are up to 15 centimetres wide and less than 4 metres long. A pyritic, 1.7 metre wide quartz vein within a fault breccia zone is also present in the area.
In 1964 the American Smelting and Refining Company conducted and exploration program on the west side of Scud Glacier. The North Scud showing was documented as a result of this work (Assessment Report.
The property was prospected and sampled to some extent in 1988 and 1989 by Corona. Results of this work are recorded in a series of prospecting by Corona. Limited rock, soil and silt sampling was done on the Scud 1-14, Robyn and Alicia claims of the Scud property. The Scud was owned by Lacana Exploration Inc and the Robyn and Alicia by International Corona Corp.
The 1991 work, consisting of large scale geological mapping, rock and soil conducted on behalf of Akiko Lori Gold Resources Ltd. 257 rock and 42 soil samples were collected. In 1991, Akiko Lori did some mapping and prospecting in the original MINFILE plotted area of the North Scud on their Alicia claim but did not report any showings there. However they did report massive copper mineralization consisting of bornite and chalcopyrite with sampling occurring just less than 1 kilometre to the south.
