Abstract
Though since their discovery in 1885 the auriferous conglomerates or banket of the Witwatersrand have
redeived a great deal of attention from geologists, no
attempt had been made to subject these rocks to a dew
tailed petrographical study till a few years ago, when
the present writer undertook the task. The results of
much of this work have already been published in the
Transactions of the Geological Society of South Africa.
The description that follows, while based
upon these publications, contains a considerable mount
of additional information.
The banket may be briefly described as a siliceous quartz conglomerate i.e. e, conglomerate whose
pebbles and matrix are mainly composed of quartz.