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3D
quanzo.fekisplthic: has been lartely igoored. Where tbc: quanzo-feldspathic natun of
the nysch has boen poinled OUl, reference has been made to Hiscott (1978) woo
COlItIuded lhae quanzo.fcklsp.athic detriNS in [he Tourelle Formation of Quebec was
derived from older allochlhonous5edimel'llS. or 10 Slevens (1970) who simply stated that
the Taconic allochthons were a source of detritus (Stevens. pen. comm., 1987; Hiscou,
pel'S. camm., 1988). The popular idea that the flysch in Newfoundland progressively
'transgressed' (prograded) across the margin from cast 10 west was suggested by
Williams and Stevens (1914), and was repeated by BolSford (1988). and Cawood et al.
(1988), but Quinn (1988 I, b. e) has called this hypothesis into question.
~QPE AND PURPOSE
This thesis presern the resullS of an investigation intO the depositional seniog,
pror.mnce and possible sources of Ordovician flysch (foreland buin deposits) of wes!:cm
NC'IItfoundlaod.
The study as origimlly dcsigoed bad a twofold purpose;
a) To rtrlne the existing 5Ualignphic oomenclatwe for Ordovician saDdslones in western
Newfoundland, which was dis."'rpnised and largely informal; and
b) To detcnninc provenance of the Ordovician flysch in lhis region. Particular emphasis
was placed on a clarification of the influence of nearby allochtbollOUS slices on detrital
composition.
SiJll;C the objcct was a regional investigation of flysch provenance, both
allochthonous and autochthonous units of Ordovician flysch wert included in the study.