Geology of the Boston Basin, Vol. 1 of 2

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Excerpt from Geology of the Boston Basin, Vol. 1 of 2: Part II. HinghamThe town of Hingham, Mass., forms the south shore of Boston Harbor for three miles, from W eymouth Back River across Hingham Harbor to Weir River Bay, and extends inland from six to seven miles, crossing the present border'of the Boston Basin, i. E., the southern limit of the sedimentary and volcanic rocks. The town is thus divided into two distinct and very unequal geological areas, and, as the general map (pl. 1) shows very clearly, the dividing line is quite irregular. The sedimentary rocks and the interbedded lavas are limited almost wholly to the northwest corner of the town, extending but little south of the railroad and having only a slight areal development east of the harbor. While over the remainder of the town, embracing more than five sixths of the total area, the numerous ledges comprise only granitic rocks (granite, diorite, and felsite) and intersecting dikes of diabase.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.