Before sealing, each fissure system
was cleaned of any plaque residue by bristle brush and prophylactic paste.
Retention: The teeth in the etch group were significantly more likely to have a FS coverage score that reflected a greater percentage of the fissure system
remained covered by FS at 12 month review.
The images showed geological evidence of catastrophic floods caused by volcanic activity in a fissure system
called the Cerberus Fossae.
Vaaldiam also recently acquired a 60% interest in the Brauna diamond property in the state of Bahia, where three diamondiferous kimberlite pipes have been discovered in association with a 15 kilometre long kimberlite fissure system
Exploration sampling has traced the kimberlite fissure system
over a distance of 15 kilometers.
A series of kimberlite fissure systems
are known to exist on the Property and a kimberlite pipe associated with the fissure system
has been mined for diamonds in the past.
The surface blasting exposed new geologic strata which, in spite of an altered sub-horizontal fissure system
(carbonates and sulphides), showed the presence of many mineralized translucid quartz veins, containing pyrite and pyrrhotine.
The discovery of the diamondiferous Aquila kimberlite and an associated fissure system
, clearly indicates the potential for additional kimberlites on the Roundrock property.
Drill hole information to date indicates that the total width of the fissure system
The resource consists of several kimberlite pipes and blows located along a NE-SW trending fissure system
extending over 800 metres.
Surface exposures of kimberlite within the dyke or fissure systems
indicate widths ranging from 0.
The East Star and Burns fissure systems
lie much nearer to the centre of gravity of the mine's ore body and to the main shaft than the Wynandsfontein fissure where current production is focused.