Hydraulic Mining D Bris In The Sierra Nevada

"Considered a landmark in California gold mining history. Public indignation against spoilage of rich agricultural land and clogging of watercourses by debris generated by hydraulic mining in the Sierra foothills led to the winning of a major battle against the miners ... [The author] examines the need to find a solution to the debris from the mining operations"--Bookdealer's description.

The method of hydraulic mining was developed in California to work low grade gravels while searching for gold. It was used from 1853 to 1884. The method was adopted in mining for other minerals.

Planetary Surface Processes is the first advanced textbook to cover the full range of geologic processes that shape the surfaces of planetary-scale bodies. Using a modern, quantitative approach, this book reconsiders geologic processes outside the traditional terrestrial context. It highlights processes that are contingent upon Earth's unique circumstances and processes that are universal. For example, it shows explicitly that equations predicting the velocity of a river are dependent on gravity: traditional geomorphology textbooks fail to take this into account. This textbook is a one-stop source of information on planetary surface processes, providing readers with the necessary background to interpret new data from NASA, ESA and other space missions. Based on a course taught by the author at the University of Arizona for 25 years, it is aimed at advanced students, and is also an invaluable resource for researchers, professional planetary scientists and space-mission engineers.