Mine Pit Lakes

Water quality of pit lakes is one of the most critical environmental issues facing the global mining industry. As ore grades decrease and operators strive to improve efficiency, the number of active pit mines will continue to outpace their underground counterparts in the years ahead. How will these water resources be protected for future generations while the mining industry continues to meet society's growing demands for raw materials? The key to solving this dilemma is accurately predicting the water quality in advance of open pit mining. That's the purpose of Mine Pit Lakes. The third in a series of six handbooks by the Acid Drainage Technology Initiative--Metal Mining Sector (ADTI-MMS), this volume includes the latest thinking from dozens of internationally respected experts from Canada, Germany, Australia, and the United States. You'll learn both the theory and science of predicting pit lake water quality and get insights into the best practices of pit lake management. This book is an indispensable resource for mining professionals and environmental regulators who are considering new open pit mines or are developing monitoring programs or closure strategies for existing ones.

This monograph provides an international perspective on pit lakes in post-mining landscapes, including the problem of geogenic acidification. Much has been learned during the last decade through research and practical experience on how to mitigate or remediate the environmental problems of acidic pit lakes. In the first part of the book, general scientific issues are presented in 21 contributions from the fields of geo-environmental science, water chemistry, lake physics, lake modeling, and on the peculiar biological features that occur in the extreme habitats of acidic pit lakes. Another chapter provides an overview of methods currently used to remediate acidic pit lakes and treat outflowing acidic water. The second part of the book is a collection of regional surveys of pit lake problems from three European countries and Australia, and case studies of various individual representative lakes. A final case study provides an innovative approach to assessing the economic value of new pit lakes and balancing the costs and benefits, a valuable tool for decision makers.

"From initial planning to relinquishment of stewardship: a manual for mine planners, regulators, environmental managers and communities to design sustainable mine pit lakes that provide regional benefit to stakeholders"--Cover.

Acidification is a universal problem at all mining sites in which oxygenated water comes in contact with sulfide minerals or other reduced sulfur compounds. An International Workshop was held in September 1995 at the Department for Inland Water Research of the UFZ-Centre for Environmental Research in Magdeburg on the limnology of lakes created by open-cast lignite mining, emphasizing the often observed geogenic acidification after oxidation of pyrite. The volume has 25 chapters including a chapter with results of group discussions about the topics mentioned above and further problems that were identified during the meeting. The monograph gives a baseline of the state of science on the worldwide problem of geogenic acidification of lakes following human mining activities.

Slumach’s Gold chronicles what is possibly Canada’s greatest lost-mine story. It searches out the truth behind a Salish man’s hanging for murder in 1891 and tracks the intriguing legend about him that grew after his death. It was a legend that turned into a drama of international fascination when Slumach—the hanged criminal—was mysteriously linked to gold nuggets “the size of walnuts.” The stories claimed that Slumach had placed a curse on a hidden motherlode to protect it from interlopers and trespassers just before he plunged to his death “at the wrong end of a five-strand rope.” Although many have attempted to find Slumach’s gold over the past 100 years, following tantalizing clues that are part of the legend itself, none have succeeded—or have they? Rick Antonson, Mary Trainer and Brian Antonson have diligently sifted through history and myth, separating fact from fiction, but leaving the legend intact—along with the promise of gold yet to be found by some future gold seeker.

This book addresses the processes related to mine abandonment from a hydrogeological perspective and provides a comprehensive presentation of water management and innovative tracer techniques for flooded mines. After an introduction to the relevant hydrogeochemical processes the book gives detailed information about mine closure procedures. The book also includes case studies and hints, and some new methodologies for conducting tracer tests in flooded mines.

"Over the past five hundred years, North Americans have increasingly turned to mining to produce many of their basic social and cultural objects. From cell phones to cars and roadways, metal pots to wall tile and even talcum powder, minerals products have become central to modern North American life. As this process has unfolded, mining has also indelibly shaped the natural world and North Americans' relationship with it. Mountains have been honeycombed, rivers poisoned, and forests leveled. The effects of these environmental transformations have fallen unevenly across North American societies. Mining North America examines these developments. Drawing on the work of scholars from Mexico, the United States, and Canada, this book explores how mining has shaped North America over the last half millennium. It covers an array of minerals and geographies while seeking to draw mining into the core debates that animate North American environmental history generally. Taken together, the authors' contributions make a powerful case for the centrality of mining in forging North American environments and societies"--Provided by publisher.