32E04SE0035 - Geology Ontario

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The La Relne River portion of the greenstone belt consists of an
assemblage of mainly mafic with minor felsic metavolcanics,
metasediments and igneous intrusive rocks which are bordered by
granitic batholiths. The rocks strike southeast and dip steeply
northeast in all parts of the area.
The La Reine River property is underlain by mafic metavolcanics
in the central part of the property with minor felsic to
intermediate tuffaceous rocks. The metasediments composed mainly
of greywacke and calc-silicate rock predominate in the southern
part of the property. The Patten River Pluton which is
granodiorite in composition borders the northeast edge of the
property.
A strike fault (Hepburn Fault) crosses the central portion of the
property.
Metamorphism of the flow rocks has produced fine to mediumgrained,
amphibole-rich metavolcanics ranging in color from grey
or pale green to dark greenish black metamorphosed basaltic and
andesitic flows. Most of the flow rocks are foliated and exhibit
volcanic structures recognized as massive, amygdaloidal,
pillowed, diabasic or gabbroic, and porphyritic types (Lumbers
1963). Felsic metavolcanics consist of flow, tuff, lapilli-tuff,
pyroclastic breccia, and tuff breccia.