Vein walls are frequently slickensided
; the slickensides are thought to be the result of post-mineralization movement (Boit, 1955).
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
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.
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.
From the figure, it can be seen that the waviness can be classified into stepped, undulating, and planar; and the unevenness can be classified into rough, smooth, and slickensided
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
(ii) A sequence of coal, weak claystone, and slickensided
shale layers from 1.1m to 14.4 m
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.
Later crosscutting micro-faults and rare slickensided
fluorite crystals indicate at least minor post-mineralization movement.