On the Hudson River age of the Taconic schists, and on the dependent relations of the Dutchess County and western Connecticut limestone belts

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1879
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Abstract
THE paper by the writer on the Relations of the Geology of Vermont to that of Berkshire, in volume xiv of this Journal (1877), closed (on p. 264) with the following paragraph:"The magnitude of the results are strong evidence that the so-called limestone-area is really but a small part of a larger region of cotemporaneous disturbance and uplift.The true breadth of the area, as well as length--whether it reached to the Connecticut Valley on the east and to the Hudson River Valley on the west, and so had the breadth of the Appalachian disturbance of a later epoch, or whether it had narrower limits -may be ascertained by studying the stratification.Some of the results of such a study as regards Connecticut and a portion of New York I propose to give in another paper."Since the above was written I have spent much time in endeavoring to complete my observations in Connecticut and the neighboring counties of New York.I have sought to determine the strike and dip and stratigraphical relations of the rocks of' Western Connecticut-points on which Percival's Report contains little, since he aimed chiefly to describe the kinds of rocks and their geographical distribution, and did not note where, in any case, lines of stratification and of lithological distribution were, as is often true, not coordinated.*I have he had proved a limestone bed above it-that above referred to-to contain Trenton fossils; he could have had no other reason for it, for he says that he had no fossils from it.t Page 410.§ The form, size, and distance between the septa, are the same as in this species.
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Authors J. D. Dana
Journal american journal of science
Year 1879
DOI
10.2475/ajs.s3-17.101.375
URL
https://doi.org/10.2475/ajs.s3-17.101.375
Keywords Keywords not found

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