According to the joint roughness guide proposed by Barton and Bandis (1990), these can be defined as undulating slickensided
All 5 wells encountered a variety of highly brecciated, slickensided
metasedimentary rocks of presumably the George River Metamorphic Suite, with no evidence of the granitic rocks found in DDH 2.
These occur as short conical stumps, with basal diameters up to 35 cm, which are slickensided
as a result of differential compaction (Fig.
In this study, theophrastite was found to occur as a green crystalline crust on a slickensided
The subvertically tilted Mississippian beds that are exposed near the Grande-Cascapedia fault system at Carleton, which is not exposed at its contact with Mississippian rocks, are affected by brittle fault planes (n = 5) striking NNE and plastered with sinistral slickensided calcite fibers (Figs.
The 175[degrees] trend of slickensided fibers on the reverse faults is interpreted as corresponding closely to that of the main principal stress ([[sigma].
Slickensided calcite fibers plastered on several fault planes indicate sinistral movement.
Later crosscutting micro-faults and rare slickensided
fluorite crystals indicate at least minor post-mineralization movement.
Faults associated with the Boudreau fault zone near Boudreau Village show asymmetric folds, steps on slickensided
surfaces, and drag folds indicative of sinistral movement.
Barite occurs as cream-white, tabular crystals up to 1 mm on an edge in the chlorite-coated extension fractures within the heavily slickensided shear zones.
Epsomite occurs as white balls in fractures within the slickensided shear zones.
Furthermore, a specimen of the epithermal material (in the University of British Columbia collection) exhibiting a slickensided
surface with the gold smeared across it supports the idea of an extended or multi-episodic epithermal event.