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Authors

J. L. Tilton

Document Type

Research

Abstract

Crosby's map of eastern Massachusetts represents an area of slate, or argillite, as it is termed, running from Worcester through Lancaster and Pepperell to the New Hampshire state line. The eastern part of this argillite, two and one-fourth miles wide on the map, but four miles wide according to the text, continues north into New Hampshire just west of the Nashua River. On the east of the argillite lies mica schist in an area very narrow (three-fourths of a mile) near the state line, but much wider toward the southern part of the township of Dunstable. On the west of the argillite lies gneiss close to the state line, but mica schist a little farther southwest (in Townsend).

Publication Date

1895

Journal Title

Proceedings of the Iowa Academy of Sciences

Volume

3

Issue

1

First Page

66

Last Page

71

Copyright

©1895 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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