Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
447,036
result(s) for
"Gold mines "
Sort by:
Gold and silver
As two of the rarest metals on Earth, gold and silver have amazed humans for centuries. People have searched the world for silver and gold, hoping to fill their pockets with the shiny metals. And yet during all of human history, only enough gold has been extracted to fill two Olympic-sized swimming pools. And not every aspect of the metals is pretty. Mining gold and silver comes with many environmental consequences.
Book
The Nature of Gold
In 1896, a small group of prospectors discovered a stunningly rich pocket of gold at the confluence of the Klondike and Yukon rivers, and in the following two years thousands of individuals traveled to the area, hoping to find wealth in a rugged and challenging setting. Ever since that time, the Klondike Gold Rush - especially as portrayed in photographs of long lines of gold seekers marching up Chilkoot Pass - has had a hold on the popular imagination.
In this first environmental history of the gold rush, Kathryn Morse describes how the miners got to the Klondike, the mining technologies they employed, and the complex networks by which they obtained food, clothing, and tools. She looks at the political and economic debates surrounding the valuation of gold and the emerging industrial economy that exploited its extraction in Alaska, and explores the ways in which a web of connections among America s transportation, supply, and marketing industries linked miners to other industrial and agricultural laborers across the country. The profound economic and cultural transformations that supported the Alaska-Yukon gold rush ultimately reverberate to modern times.
The story Morse tells is often narrated through the diaries and letters of the miners themselves. The daunting challenges of traveling, working, and surviving in the raw wilderness are illustrated not only by the miners compelling accounts but by newspaper reports and advertisements. Seattle played a key role as gateway to the Klondike. A public relations campaign lured potential miners to the West and local businesses seized the opportunity to make large profits while thousands of gold seekers streamed through Seattle.
The drama of the miners journeys north, their trials along the gold creeks, and their encounters with an extreme climate will appeal not only to scholars of the western environment and of late-19th-century industrialism, but to readers interested in reliving the vivid adventure of the West s last great gold rush.
eBook
Off rock
After discovering a gold pocket on a distant planet, Jimmy Vik, a space miner facing a possible layoff, has to contend with a suspicious ex-girlfriend, an unreliable partner, and a rival mining company in his attempt to smuggle the gold off the planet.
Book
Synthesis of silver nanoparticles with high efficiency and stability by culture supernatant of Bacillus ROM6 isolated from Zarshouran gold mine and evaluating its antibacterial effects
Background
The use of bacteria to synthesize nanoparticles as an environment-friendly method has recently been considered by researchers. Bacteria residing in different mines have shown high potential in the synthesis of metal nanoparticles due to their compatibility with the environment. The aim of this study was to evaluate the ability of Zarshouran gold mine bacteria to synthesize silver nanoparticles and their antibacterial activity.
Methods
After isolation of mine bacteria and several screening steps, silver ion tolerant bacteria that were able to synthesize extracellular silver nanoparticles were isolated and the most suitable isolate was selected and sequenced. The characteristics, stability, and production efficiency of silver nanoparticles were evaluated using UV–vis spectrophotometry, DLS, TEM, FTIR, and X-ray diffraction analysis. Finally, the antibacterial effect of silver nanoparticles against pathogenic bacteria was investigated.
Results
Among the eight silver-tolerant bacteria, isolate No. 6 had high antibacterial activity and high potential in the synthesis and stabilization of silver nanoparticles. Therefore, this isolate was selected for the next experiments. The results of 16S rDNA sequencing showed that this isolate is related to
Bacillus pumilus
. We registered in the NCBI Bank called ROM6 with access number MW440543. The DLS and TEM analysis showed that silver nanoparticles produced by this isolate were most spherical with a size of less than 25 nm and were stable for at least 180 days. The efficiency at concentrations less than 0.9 g/l silver nitrate was over 90% and the minimum inhibition concentration of nanoparticles was determined against
S. aureus, E. coli, P. aeruginosa,
and
A. baumannii
ranging from 1.4 to 5.6 µg/ml.
Conclusion
We found that the bacteria residing in the gold mine have a high capacity for the synthesis of spherical and high stable silver nanoparticles with a strong antibacterial effect.
Journal Article
A global history of gold rushes
\"Nothing set the world in motion like gold. Gold rushes accelerated the global circulation of people, goods, capital, and technologies that transformed settler societies around the world. Yet, they are rarely considered in a global perspective. While in the past national histories have emphasized the role of gold rushes as accelerants of state formation, crucibles of national character, and watersheds of political development, the essays in Gold Rush begin from a different premise. They explore gold rushes as connected phenomena and emphasize the destructive power of the search for gold on indigenous communities and the environment, and their role as incubators of racial hierarchy and immigration restriction. The essays in Gold Rush showcase the best and most current research methodologies in global history - comparative, environmental, and transnational - to address these concerns. Gold Rush uses diverse themes and places as vantage points on the nineteenth century gold rushes - from the catalytic effect of the discovery of California placer gold in 1848 to the nostalgic rush to the beaches of Nome, Alaska, fifty years later; from anxious commentators discussing the public good and disorder of gold mining in Georgia, California, and Victoria to the worldwide discussion of the \"Chinese Question\" and the productivity of non-white labor in Africa; from the assertion of corporate control over lode mining to the destructive environmental and financial consequences of that control. At the heart of this book is the paradoxical power of gold rushes to connect and divide, to enrich and impoverish, to create and destroy\"--Provided by publisher.
Book
Spinning gold: The financial returns to stakeholder engagement
We provide direct empirical evidence in support of instrumental stakeholder theory's argument that increasing stakeholder support enhances the financial valuation of a firm, holding constant the objective valuation of the physical assets under its control We undertake this analysis using panel data on 26 gold mines owned by 19 publicly traded firms over the period 1993-2008. We code over 50,000 stakeholder events from media reports to develop an index of the degree of stakeholder conflict/cooperation for these mines. By incorporating this index in a market capitalization analysis, we reduce the discount placed by financial markets on the net present value of the physical assets controlled by these firms from 72 percent to between 37 and 13percent.
Journal Article
Socio-Environmental Risks Linked with Mine Tailings Chemical Composition: Promoting Responsible and Safe Mine Tailings Management Considering Copper and Gold Mining Experiences from Chile and Peru
There is a need to define mine tailings in a clear, precise, multidisciplinary, transdisciplinary, and holistic manner, considering not only geotechnical and hydraulic concepts but also integrating environmental and geochemical aspects with implications for the sustainability of mining. This article corresponds to an independent study that answers questions concerning the definition of mine tailings and the socio-environmental risks linked with mine tailings chemical composition by examining the practical experience of industrial-scale copper and gold mining projects in Chile and Peru. Definitions of concepts and analysis of key aspects in the responsible management of mine tailings, such as characterization of metallic–metalloid components, non-metallic components, metallurgical reagents, and risk identification, among others, are presented. Implications of potential environmental impacts from the generation of acid rock drainage (ARD) in mine tailings are discussed. Finally, the article concludes that mine tailings are potentially toxic to both communities and the environment, and cannot be considered as inert and innocuous materials; thus, mine tailings require safe, controlled, and responsible management with the application of the most high management standards, use of the best available technologies (BATs), use of best applicable practices (BAPs), and implementation of the best environmental practices (BEPs) to avoid risk and potential socio-environmental impact due to accidents or failure of tailings storage facilities (TSFs).
Journal Article
Fear and Fortune
Mongolia over the last decade has seen a substantial and ongoing gold rush. The widespread mining of gold looks at first glance to be a blessing for a desperately poor and largely pastoralist country where people's lives were disrupted by the end of the USSR and tens of millions of livestock were killed in devastating droughts in the early 2000s. Volatility and uncertainty as well as political and economic turmoil led many people to join the hopeful search for gold. This activity, born out of uncertain times, poses an intense moral problem; in the \"land of dust,\" disturbing the ground and extracting the precious metal is widely believed to have calamitous consequences. With gold retaining strong ties to the landscape and its many spirit beings, the fortune of the precious metal is inseparable from the fears that surround mining. Tracing the continuities and discontinuities between human and nonhuman worlds, Mette M. High follows the paths of gold as it is excavated and converted into \"polluted money,\" entering local shops and Buddhist monasteries, joining the illegal gold trade, and returning as \"renewed\" money for the \"big bosses\" of the gold mines.
High has done several years of fieldwork in Mongolia, spending time with the \"ninjas,\" as the miners are known locally, as well as the people who disapprove of their illegal activities and warn of the retribution that the land and its inhabitants may suffer as a result. This book is about radical change, or as many Mongolians put it, when life becomes \"strange\" and \"chaotic.\" High has gained a deep understanding of the processes by which Mongolians square a morally questionable activity with the lure of profit. How do they involve themselves with tainted sources of money, and can it ever be cleansed and made usable? Addressing how our lives and those of others are intimately intertwined,Fear and Fortuneoffers an expansive and capacious approach to understanding the high stakes involved in human economic life.
eBook