BUX 4.00% 7.2¢ buxton resources limited

Ann: Brecciated massive sulphides intersected at three conductors, page-51

  1. 2,172 Posts.
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    This BUX announcement way back on 10/08/2018 was indeed good news.
    There is one aspect that does need to be clarified about the term "brecciation".

    Brecciation type 1.
    Brecciation can be the result of hydro-brecciation which is caused by the boiling (still under high pressure) of the "water" in (for example) magma coming to the surface and into a lower pressure system.  This is not the type of brecciation here.  Either you are in the zone of hydro-brecciation or out of it.

    Brecciation type 2.
    Brecciation can be caused by erosion and abrasion and incomplete mixing of the material as it is forced upwards.

    Use your considerable imagination and think of toothpaste being pushed up through chocolate cake. Clean toothpaste is squeezed into the cake but it quickly drags up bits of cake with it.  Now think of a nicely layered chamber with layers of pentlandite, pyrrhotite, chalcopyrite. This is ruptured and the sulphides are squeezed upwards. With all this activity, chunks of chalcopyrite and pentlandite get mixed up in the pyrrhotite. Here we have a brecciated product, but NO water is involved.  Now the point is that this can continue to be squeezed  (or extruded along the surface) along considerable distance but it will NEVER un-brecciate. The idea of looking for proximal and distal positions by looking at the degree is misleading.

    There are many example in nature of brecciation by abrasion.

    Just a thought for the BUX geo team. Please respond.
 
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