Moose River Basin: geology and mineral potential - Geology Ontario

Moose River Basin
OGS10456
Photo 2.3-Photograph showing an outcrop of Mattagami Formation at Site B, south side of the Missi
naibi River, about 10 km upstream from the mouth of the Opawatika River.
The only other data on the Mesozoic sediments of the central part of the
Moose River Basin are Ontario Geological Survey drillholes 75-01 to 75-04
(Figure 2.2). These holes were drilled at 12-15 km intervals on an approximate
north-south line between the Missinaibi and Rabbit Rivers (Figure 1.3). They
revealed varying thicknesses of Mesozoic sediments (maximum 25 m) and, as
determined palynologically (Telford et al. 1975; Norris 1977), both Middle Ju
rassic and Lower Cretaceous ages. A detailed discussion of these important dis
coveries is given later in this chapter and in a following chapter by G. Norris.
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