9781334489310 - Sand Available for Filling Mine Workings in the Northern Anthracite Basin of Pennsylvania (Classic Reprint) de Darton, N. H. (3 résultats)

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Etat : New. Print on Demand. This book explores the distribution of sand and gravel in the northern anthracite coal basin of Pennsylvania, with a focus on their use as mine lling materials. It discusses the geological formations in which these deposits are found, including buried river channels, old terraces, glacial till, and rearranged till. The author, an expert in the eld, presents detailed descriptions of the sand deposits in the region, including their thickness, character, and suitability for use as lling materials. The book also explores the potential for using these deposits to replace coal pillars and thereby reduce waste in the mining process. For those interested in the history of mining in Pennsylvania, the geology of the region, or the use of natural resources for sustainable practices, this book offers valuable insights and a comprehensive overview of the subject. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.