Chalcopyrite, chalcocite, and malachite mineralization within k-feldspar altered hydrothermal breccia
. Image starting at 282.4m in BRDDH19-004; the 3rd diamond drill hole at Burgundy Ridge.
Selwicks Bay contains a 20 m displacement normal fault characterized by an approximately 10 m wide fault core of breccia
and pluridecimeters-thick crystalline calcite veins .
organised in beds, generally without grading, having a metric-scale thickness and high lateral variability (Fig.
The origin of the breccia
has been debated for more than a century and hypotheses about its formation include plate tectonics, earthquakes and impacts (see Suuroja et al.
"We aren't interested in those voices with ignorant and malicious criticisms, but we must admit that they cause a lot of harm," said Breccia
Currently, the two rigs are drilling on the Skynner Lake property, testing borehole and airborne electromagnetic conductors within the East Range Sudbury breccia
An anomalous carbonate breccia
in the Serpent Mound impact crater in southwestern Ohio was examined and possible depositional/emplacement mechanisms were evaluated in an effort to determine its origin.
Carved from Fouakia Breccia
stone and well matched to its surrounding magnificence, the stoup was blessed by the Archbishop of Canterbury on 25 September 2010.
A scoriaceous cap 2.4 to 3.1 meters thick overlies the amygdaloid and includes numerous breccia
cavities, some as large as 1.8 meters.
The targets are uranium-bearing solution-collapse "breccia
pipes" that were mined during the early 1980's.