dow thayer (1 resultados)

Paperback. Condición: New. Print on Demand. This book documents the history of chromite mining in the northern Coast Ranges of California from the 1880s through World War II. The author provides descriptions of individual mines and prospects based on published and unpublished information, including reports from government agencies and industry engineers. While production from the region during WWI stimulated interest, mining was limited to small deposits containing sorted high-grade ore. The largest locally known disseminated ore body was exhausted by 1944. The author concludes that given the lack of new discoveries between 1941 and 1943, and the fact that accessible parts of the region have been thoroughly prospected, there is little potential for future production in the region unless new, large deposits are discovered. 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.