Pore Scale Geochemical Processes

Pore Scale Geochemical Processes
Author: Carl Steefel
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 496
Release: 2015-09-25
Genre: Science
ISBN: 1501502077

This RiMG (Reviews in Mineralogy & Geochemistry) volume includes contributions that review experimental, characterization, and modeling advances in our understanding of pore-scale geochemical processes. The volume had its origins in a special theme session at the 2015 Goldschmidt Conference in Prague. From a diversity of pore-scale topics that ranged from multi-scale characterization to modeling, this work summarizes the state-of-the-science in this subject. Topics include: modification of thermodynamics and kinetics in small pores. chemo-mechanical processes and how they affect porosity evolution in geological media. small angle neutron scattering (SANS) techniques. how isotopic gradients across fluid–mineral boundaries can develop and how these provide insight into pore-scale processes. Information on an important class of models referred to as "pore network" and much more. The material in this book is accessible for graduate students, researchers, and professionals in the earth, material, environmental, hydrological, and biological sciences. The pore scale is readily recognizable to geochemists, and yet in the past it has not received a great deal of attention as a distinct scale or environment that is associated with its own set of questions and challenges. Is the pore scale merely an environment in which smaller scale (molecular) processes aggregate, or are there emergent phenomena unique to this scale? Is it simply a finer-grained version of the "continuum" scale that is addressed in larger-scale models and interpretations? The scale is important because it accounts for the pore architecture within which such diverse processes as multi-mineral reaction networks, microbial community interaction, and transport play out, giving rise to new geochemical behavior that might not be understood or predicted by considering smaller or larger scales alone.

Zircon

Zircon
Author: John M. Hanchar
Publisher: de Gruyter
Total Pages: 526
Release: 2003
Genre: Nature
ISBN: 9780939950652

Chapter titles: Structure and chemistry of zircon and zircon-group minerals; The composition of zircon and igneous and metamorphic petrogenesis; Melt inclusions in zircon; Zircon saturation thermometry; Diffusion in zircon; Historical development of zircon geochronology; Zircon U-Th-Pb geochronology by ID-TIMS; Considerations in zircon geochronology by SIMS; Present trends and the future of zircon in geochronology: laser ablation ICPMS; Detrital zircon analysis of the sedimentary record; High-precision U-Pb zircon geochronology and the stratigraphic record; Lu-Hf and Sm-Nd isotope systems in zircon; Oxygen isotopes in zircon; Radiation effects in zircon; Spectroscopic methods applied to zircon; Atlas of zircon textures.

Paleoaltimetry

Paleoaltimetry
Author: Matthew J. Kohn
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 288
Release: 2018-12-17
Genre: Science
ISBN: 1501508601

Volume 66 of Reviews in Mineralogy and Geochemistry is based on a two day short course entitled Paleoaltimetry: Geochemical and Thermodynamic Approaches held prior to the Geological Society of American annual meeting in Denver, Colorado (October 26-27, 2007). This meeting and volume were sponsored by the Geochemical Society, Mineralogical Society of America, and the United States Department of Energy. Contents: The Significance of Paleotopography Stable Isotope-Based Paleoaltimetry: Theory and Validation Paleoelevation Reconstruction Using Pedogenic Carbonates Stable Isotope Paleoaltimetry in Orogenic Belts – The Silicate Record in Surface and Crustal Geological Archives Paleoaltimetry from Stable Isotope Compositions of Fossils A Review of Paleotemperature–Lapse Rate Methods for Estimating Paleoelevation from Fossil Floras Paleoaltimetry: A Review of Thermodynamic Methods Paleoelevation Measurement on the Basis of Vesicular Basalts Stomatal Frequency Change Over Altitudinal Gradients: Prospects for Paleoaltimetry Thermochronologic Approaches to Paleotopography Terrestrial Cosmogenic Nuclides as Paleoaltimetric Proxies

Geochemistry and Mineralogy of Rare Earth Elements

Geochemistry and Mineralogy of Rare Earth Elements
Author: Bruce R. Lipin
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 360
Release: 2018-12-17
Genre: Science
ISBN: 1501509039

Volume 21 of Reviews in Mineralogy treats a short course on the rare earth elements to about 80 participants in San Francisco, California, December 1-3, 1989, just prior to the fall meeting of the American Geophysical Union. Contents: Cosmochemistry of the Rare Earth Elements: Condensation and Evaporation Processes Radiogenic Isotope Geochemistry of Rare Earth Elements Partitioning of Rare Earth Elements between Major Silicate Minerals and Basaltic Melts An Approach to Trace Element Modeling Using a Simple Igneous System as an Example Rare Earth Elements in Upper Mantle Rocks Rare Earth Elements in Metamorphic Rocks Rare Earth Elements in Sedimentary Rocks: Influence of Provenance and Sedimentary Processes Aqueous Geochemistry of Rare Earth Elements Rare Earth Elements in Lunar Materials Compositional and Phase Relations among Rare Earth Element Minerals Economic Geology of Rare Earth Minerals Cathodoluminescence Emission Spectra of Rare Earth Element Activators in Minerals

Amphiboles

Amphiboles
Author: Frank C. Hawthorne
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 564
Release: 2018-12-17
Genre: Science
ISBN: 1501508520

Volume 67 of Reviews in Mineralogy and Geochemistry covers the Crystal Chemistry, Occurrence, and Health Issues of Amphiboles. Contents: Amphiboles: Crystal Chemistry Classification of the Amphiboles New Amphibole Compositions: Natural and Synthetic Long-Range Order in Amphiboles Short-Range Order in Amphiboles Non-Ambient in situ Studies of Amphiboles The Synthesis and Stability of Some End-Member Amphiboles The Significance of the Reaction Path in Synthesizing Single-Phase Amphibole of Defined Composition Amphiboles in the Igneous Environment Metamorphic Amphiboles: Composition and Coexistence Trace-Element Partitioning Between Amphibole and Silicate Melt Amphiboles: Environmental and Health Concerns Amphiboles: Historical Perspective

Sulfide Mineralogy and Geochemistry

Sulfide Mineralogy and Geochemistry
Author: David J. Vaughan
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 728
Release: 2018-12-17
Genre: Science
ISBN: 1501509497

Volume 61 of Reviews in Mineralogy and Geochemistry presents an up-to-date review of sulfide mineralogy and geochemistry. The crystal structures, electrical and magnetic properties, spectroscopic studies, chemical bonding, thermochemistry, phase relations, solution chemistry, surface structure and chemistry, hydrothermal precipitation processes, sulfur isotope geochemistry and geobiology of metal sulfides are reviewed. Where it is appropriate for comparison, there is brief discussion of the selenide or telluride analogs of the metal sulfides. When discussing crystal structures and structural relationships, the sulfosalt minerals as well as the sulfides are considered in some detail.

Carbon in Earth

Carbon in Earth
Author: Robert M. Hazen
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 716
Release: 2018-12-17
Genre: Science
ISBN: 1501508318

Volume 75 of Reviews in Mineralogy and Geochemistry addresses a range of questions that were articulated in May 2008 at the First Deep Carbon Cycle Workshop in Washington, DC. At that meeting 110 scientists from a dozen countries set forth the state of knowledge about Earth's carbon. They also debated the key opportunities and top objectives facing the community. Subsequent deep carbon meetings in Bejing, China (2010), Novosibirsk, Russia (2011), and Washington, DC (2012), as well as more than a dozen smaller workshops, expanded and refined the DCO's decadal goals. The 20 chapters that follow elaborate on those opportunities and objectives.

Sulfate Minerals

Sulfate Minerals
Author: Charles N. Alpers
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 624
Release: 2018-12-17
Genre: Science
ISBN: 1501508660

Volume 40 of Reviews in Mineralogy and Geochemistry compiles and synthesizes current information on sulfate minerals from a variety of perspectives, including crystallography, geochemical properties, geological environments of formation, thermodynamic stability relations, kinetics of formation and dissolution, and environmental aspects. The first two chapters cover crystallography (Chapter 1) and spectroscopy (Chapter 2). Environments with alkali and alkaline earth sulfates are described in the next three chapters, on evaporites (Chapter 3), barite-celestine deposits (Chapter 4), and the kinetics of precipitation and dissolution of gypsum, barite, and celestine (Chapter 5). Acidic environments are the theme for the next four chapters, which cover soluble metal salts from sulfide oxidation (Chapter 6), iron and aluminum hydroxysulfates (Chapter 7), jarosites in hydrometallugy (Chapter 8), and alunite-jarosite crystallography, thermodynamics, and geochronology (Chapter 9). The next two chapters discuss thermodynamic modeling of sulfate systems from the perspectives of predicting sulfate-mineral solubilities in waters covering a wide range in composition and concentration (Chapter 10) and predicting interactions between sulfate solid solutions and aqueous solutions (Chapter 11). The concluding chapter on stable-isotope systematics (Chapter 12) discusses the utility of sulfate minerals in understanding the geological and geochemical processes in both high- and low-temperature environments, and in unraveling the past evolution of natural systems through paleoclimate studies. The review chapters in this volume were the basis for a short course on sulfate minerals sponsored by the Mineralogical Society of America (MSA) November 11-12, 2000 in Tahoe City, California, prior to the Annual Meeting of MSA, the Geological Society of America, and other associated societies in nearby Reno, Nevada. The conveners of the course (and editors of this volume of Reviews in Mineralogy and Geochemistry), Alpers, John Jambor, and Kirk Nordstrom, also organized related topical sessions at the GSA meeting on sulfate minerals in both hydrothermal and low-temperature environments.

Uranium-series Geochemistry

Uranium-series Geochemistry
Author: Bernard Bourdon
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 676
Release: 2018-12-17
Genre: Science
ISBN: 1501509306

Volume 52 of Reviews in Mineralogy and Geochemistry updates our knowledge of U-series geochemistry, offer an opportunity for non-specialists to understand its basic principles, and give us a view of the future of this active field of research. In this volume, for the first time, all the methods for determining the uranium and thorium decay chain nuclides in Earth materials are discussed. It was prepared in advance of a two-day short course (April 3-4, 2003) on U-series geochemistry, jointly sponsored by GS and MSA and presented in Paris, France prior to the joint EGS/AGU/EUG meeting in Nice.