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Book
ISBN: 1283754347 0080931839 0444529896 9780444529893 9781283754347 9780080931838 9780444529893 Year: 2012 Volume: 65 Publisher: Oxford Elsevier Science Ltd.
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This book deals with sedimentary sulfides which are the most abundant authigenic minerals in sediments. Special emphasis is given to the biogeochemistry that plays such a central role in the formation of sedimentary sulfides. It will be of interest to scientists in a number of disciplines, including geology, microbiology, chemistry and environmental science. The sulfur system is important to environmental scientists considering the present and future effects of pollution and anoxia. The development of the sulfur system - particularly the characteristics of ocean anoxia over the last 200 Ma
Sedimentary rocks. --- Sedimentology. --- Sediments (Geology). --- Sulfides. --- Sedimentology --- Sediments (Geology) --- Sulfides --- Geology --- Earth & Environmental Sciences --- Petrology --- Sulphides --- Chalcogenides --- Sulfur compounds --- Physical geography --- Sedimentary rocks --- Sedimentation and deposition --- Marine sediments --- Slackwater deposits
Book
ISBN: 0197559484 0190203692 0190203684 9780190203689 9781336149335 1336149337 9780190203672 0190203676 9780197559482 9780190203696 Year: 2015 Publisher: New York, NY
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Geochemist David Rickard explores pyrite's influence on human history, culture and science, and reveals how fool's gold became a universal symbol for everything overvalued.
Pyrites. --- Pyrites --- Mineralogy. --- Physical geology --- Crystallography --- Minerals --- Fool's gold --- Iron pyrites --- Mundic --- Iron ores --- Sulfide minerals --- History.
Digital
ISBN: 0444529896 9780444529893 9781283754347 1283754347 9780080931838 0080931839 Year: 2012 Publisher: Oxford Elsevier Science Ltd
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This book deals with sedimentary sulfides which are the most abundant authigenic minerals in sediments. Special emphasis is given to the biogeochemistry that plays such a central role in the formation of sedimentary sulfides. It will be of interest to scientists in a number of disciplines, including geology, microbiology, chemistry and environmental science. The sulfur system is important to environmental scientists considering the present and future effects of pollution and anoxia. The development of the sulfur system - particularly the characteristics of ocean anoxia over the last 200 Ma - is useful in predicting the future fate of the Earth surface system as well as in understanding the past. The biochemistry and microbiology of the sulfur system are key to understanding microbial ecology and the evolution of life. First monograph on sedimentary sulfides, covering the ancient and modern sedimentary sulfide systems Comprehensive, integrating chemistry, microbiology, geology and environmental science All key references are included and discussed.
Book
ISBN: 9780190080112 0190080116 Year: 2021 Publisher: New York, NY Oxford University Press
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"Framboids may be the most astonishing and abundant natural features you have never heard of. These microscopic spherules of golden pyrite consist of thousands of even smaller microcrystals often arranged in stunning geometric arrays. There are probably 1030 on Earth and they are forming at a rate of 1020 every second. This means that there are a billion times more framboids than sand grains on Earth and a million times more framboids than stars in the observable universe. They are all around us: they can be found in rocks of all ages and in present-day sediments, soils and natural waters. The sulfur in the pyrite is mainly produced by bacteria and many framboids contain organic matter. They are formed through burst nucleation of supersaturated solutions of iron and sulfide followed by limited crystal growth in diffusion-dominated stagnant sediments. The framboids self-assemble as surface free energy is minimized and the microcrystals are attracted to each other by surface forces. Self-organization occurs through entropy maximization and the microcrystals rotate into their final positions through Brownian motion. The final shape of the framboids is often actually polygonal or partially facetted rather than spherical, as icosahedral microcrystal packing develops. Their average diameter is around 6 microns and the average microcrystal size is about 0.1 microns. There is no significant change in these dimensions with time: the framboid is an exceptionally stable structure and the oldest may be 2.9 billion years old. This means that they provide samples of the chemistry of ancient environments"--
Pyrites --- Ore deposits --- Sediments (Geology) --- Texture (Crystallography) --- Aggregation (Chemistry)
Book
Year: 1989 Publisher: El Paso : Society of Economic Geologists,
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GITOLOGIE REGIONALE --- EUROPE --- Europe --- Europe --- GITOLOGIE REGIONALE --- EUROPE
Book
Year: 1977 Publisher: Stockholm : Stockholm university = Stockholms universitet,
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EUROPE DU NORD --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- ETUDE REGIONALE --- EUROPE DU NORD --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- ETUDE REGIONALE
Book
Year: 1981 Publisher: Stockholm : Stockholm university = Stockholms universitet,
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EUROPE DU NORD --- SUEDE --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- SUEDE --- ETUDE REGIONALE --- EUROPE DU NORD --- SUEDE --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- SUEDE --- ETUDE REGIONALE
Book
Year: 1980 Publisher: Stockholm : Stockholm university = Stockholms universitet,
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EUROPE DU NORD --- SUEDE --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- SUEDE --- ETUDE REGIONALE --- EUROPE DU NORD --- SUEDE --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- SUEDE --- ETUDE REGIONALE
Book
Year: 1978 Publisher: Stockholm : Stockholm university = Stockholms universitet,
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EUROPE DU NORD --- SUEDE --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- SUEDE --- ETUDE REGIONALE --- EUROPE DU NORD --- SUEDE --- GEOLOGIE REGIONALE --- GEOLOGIE APPLIQUEE --- ETUDE REGIONALE --- SUEDE --- ETUDE REGIONALE
Book
Year: 1979 Publisher: Liège : Société géologique de Belgique,
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