Publisher's Synopsis
Excerpt from A Contribution to the Geology of the Pre-Cambrian Igneous Rocks of the Fox River Valley, Wisconsin
The outliers vary Widely in areal extent and elevation. They indicate that the early Huronian continent had not been reduced to a base-level at the time of the deposition of the early Paleozoic formations. It is very probable that some of the outcrops, at least, rose a thousand feet above the shore line of the early Pale ozoic sea.
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