Journal ArticleDOI
Bacterial sulfate reduction and pH: Implications for early diagenesis
S. J. Birnbaum,John W. Wireman +1 more
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In this paper, Desulfovibrio desulfuricans produces a change in the chemistry of the surrounding fluids, such as carbonate dissolution reactions and diagenetic reactions involving silica.About:
This article is published in Chemical Geology.The article was published on 1984-02-01. It has received 48 citations till now. The article focuses on the topics: Sulfate.read more
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The silica cycle in the Precambrian
TL;DR: In this paper, it was shown that the Neoproterozoic silica cycle was dominated by inorganic reactions among dissolved silica, clay and zeolite minerals, and organic matter.
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The simulated silicification of bacteria--new clues to the modes and timing of bacterial preservation and implications for the search for extraterrestrial microfossils.
TL;DR: The mechanisms of silicification under controlled laboratory conditions and the implication forsilicification in natural environments are discussed, along with the relevance of the findings in the search for early life on Earth and extraterrestrial life.
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Syndepositional dissolution of calcium carbonate in neritic carbonate environments: geological recognition, processes, potential significance
TL;DR: Within carbonate sediments below tropical-subtropical oceanic surface waters, syndepositional dissolution of CaCO3 driven by organic matter oxidation can modify substantially the textural, compositional and early diagenetic characteristics of the resulting rock as mentioned in this paper.
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Petrographic and SIMS pyrite sulfur isotope analyses of Ediacaran chert nodules: Implications for microbial processes in pyrite rim formation, silicification, and exceptional fossil preservation
TL;DR: In this paper, secondary ion mass spectroscopy (SIMS) was used to identify the earliest known animal resting eggs and embryos in the lower Ediacaran Doushantuo Formation.
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Anatomy of siliceous hot springs: examples from Yellowstone National Park, Wyoming, USA
Sean A. Guidry,Henry S. Chafetz +1 more
TL;DR: In this paper, a facies model for siliceous hot spring deposits at Yellowstone National Park, Wyoming is presented, which is composed of up to eight cumulative hot spring depositional facies: (1) vent (>95 °C), (2) proximal vent ( Precipitation of sinter is the result of abiotic and biotic processes.
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Limits of the Natural Environment in Terms of pH and Oxidation-Reduction Potentials
TL;DR: In this article, the electron and the proton content (measured as electrode potential [Eh] and pH) of an environment characterize this environment in many ways, and the electrode potential and the pH are used as empirical parameters rather than as electrochemical data capable of thermodynamic interpretation.
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Studies on Redox Potential of Marine Sediments
TL;DR: The redox potential of sedimentary materials is defined as the electron-escaping tendency of a reversible oxidation-reduction system, and is expressed as an intensity factor as mentioned in this paper.
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Hydrogen cycling as a general mechanism for energy coupling in the sulfate‐reducing bacteria, Desulfovibrio sp.
J.M. Odom,Harry D. Peck +1 more
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Carbonate Dissolution in Nearshore Terrigenous Muds: The Role of Physical and Biological Reworking
TL;DR: In this article, a study of terrigenous mud deposits from Long Island Sound, U.S.A. demonstrates extensive dissolution of molluscan shell debris near the sediment-water interface.