Excerpt from Pennsylvania Glaciation First Phase: Materials for a Discussion of the Attenuated Border of the Moraine Described in Volume Z of the Second, Geological Survey of Pennsylvania
Native copper and crystalline rocks are found only in the extreme eastern and western parts of Pennsylvania in the drift of this Phase. In both localities floating ice seems to have played an important part. With no intention of claiming a Lake Superior origin for the Connecticut and Eastern Pennsylvania copper, the latter can not come from the Trias entirely, as it is found in Monroe County, north of Kittatinny Mountain. Western Pennsylvania copper certainly has a Keewatin origin, and the specimen was berg-carried.
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Paperback. Condition: New. Print on Demand. This book focuses on an attenuated border that forms the southern boundary of a glacial moraine in Pennsylvania, showcasing evidence to demonstrate that it represents the southern limit of the first ice sheet phase. The author presents a descriptive physical geography of the region and discusses the First Glacial Phase's characteristics. The book assesses glacial striae, which are associated with regional troughs over which the First Phase moved toward and upon Pennsylvania. It also provides a comprehensive list of possible rocks in the drift, and utilizes drainage lines to indicate where each lobe lost some of its basal burden. Ultimately, this book underscores the significance of the attenuated border as evidence of the First Glacial Phase, providing valuable insights into the geological history of Pennsylvania and furthering our understanding of the First Phase's movement and impact. Forgotten Books publishes hundreds of thousands of rare and classic books. This 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. The digital edition of all books may be viewed on our website before purchase. print-on-demand item. Seller Inventory # 9781332331475_0
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Seller: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781332331475
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Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781332331475
Quantity: 15 available
Seller: Buchpark, Trebbin, Germany
Condition: Sehr gut. Zustand: Sehr gut - Gepflegter, sauberer Zustand. | Seiten: 122 | Sprache: Englisch | Produktart: Bücher. Seller Inventory # 26089134/2
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