V51H:
Secondary Mineralization in Bedrock: Diagenesis, Cementation, Hydrothermal Precipitation, and the Interpretation of Paleofluid Flow I


Session ID#: 8919

Session Description:
Secondary minerals precipitated in pore spaces and fractures of crystalline and sedimentary rocks record past episodes of groundwater flow, fluid mixing, and potentially biologic activity occurring long after formation of the host rocks. Changes in porosity, permeability, and composition caused by precipitation of secondary minerals have profound effects on the transport and fate of groundwater, hydrocarbons, and natural and anthropogenic supercritical fluids. Secondary mineralization also bears geochemical, isotopic, and geochronologic records of ancient groundwater flow that may constrain past climatic, tectonic, or exposure histories of crustal sections on the Earth and other planets. We welcome contributions bearing on understanding the origin and evolution of secondary mineralization in crustal rocks, their effects on hydrologic and reservoir properties, and the geologic significance of ancient secondary minerals on Earth and other planets.
Primary Convener:  Peter W Reiners, University of Arizona, Geosciences, Tucson, AZ, United States
Convener:  Brenda B. Bowen, University of Utah, Salt Lake City, UT, United States
Chairs:  Peter W Reiners, University of Arizona, Geosciences, Tucson, AZ, United States and Brenda B. Bowen, University of Utah, Salt Lake City, UT, United States
OSPA Liaison:  Brenda B. Bowen, University of Utah, Salt Lake City, UT, United States

Cross-Listed:
  • EP - Earth and Planetary Surface Processes
  • H - Hydrology
  • PP - Paleoceanography and Paleoclimatology
  • T - Tectonophysics
Index Terms:

1051 Sedimentary geochemistry [GEOCHEMISTRY]
1829 Groundwater hydrology [HYDROLOGY]
1858 Rocks: chemical properties [HYDROLOGY]
1859 Rocks: physical properties [HYDROLOGY]

Abstracts Submitted to this Session:

A Perspective on Diagenetic Geometries and Patterns of Iron Oxide Cement and Coloration: Understanding Challenges and Complexities (Invited) (62851)
Marjorie A Chan, University of Utah, Dept. of Geology & Geophysics, Salt Lake City, UT, United States and Yifeng Wang, Sandia National Laboratories, Albuquerque, United States
Siderite (FeCO3)—the Hidden (but Primary) Player in Iron Diagenesis of Non-Marine Sandstones (Invited) (62795)
David Loope, University of Nebraska Lincoln, Earth & Atmospheric Sciences, Lincoln, NE, United States and Richard Mark Kettler, University of Nebraska Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States
Ground-based Hyperspectral Imaging for Fluid-related Diagenetic Heterogeneities and Fluid-flow Pathways in the Wingate Sandstone (67459)
Unal Okyay, University of Houston, Earth and Atmospheric Sciences, Houston, TX, United States and Shuhab Khan, University of Houston, Houston, TX, United States
Influence of the spatial distribution of cementation on the permeability and mechanical attributes of sedimentary and fault rocks (Invited) (68498)
Peter Mozley, New Mexico Tech, Earth and Enviromental Science, Socorro, NM, United States, Hongkyu Yoon, Sandia National Laboratories, Geomechanics Department, Albuquerque, NM, United States, Randolph T. Williams, University of Wisconsin-Madison, Geoscience, Madison, United States and Laurel B Goodwin, Univ Wisconsin - Madison, Madison, WI, United States
Structural analysis characterization of permeability pathways across reservoir-seal interface – South-Eastern Utah; Results from integrated sedimentological, structural, and geochemical studies. (83426)
Elizabeth Sandra Petrie1, James P Evans2, David Richey2, Santiago Flores2, Corey Barton2 and Peter Mozley3, (1)Organization Not Listed, Washington, DC, United States, (2)Utah State University, Logan, UT, United States, (3)New Mexico Tech, Earth and Enviromental Science, Socorro, NM, United States
Constraining Age and Locations of Active and Paleofluid Flow Systems in Dixie Valley, Nevada, with Apatite (U-Th)/He Thermochronometry (68516)
Alison MacNamee, University of Texas at Austin, Austin, TX, United States and Daniel F Stockli, University of Texas at Austin, Department of Geological Sciences, Austin, United States
Hematite (U-Th)/He and Apatite Fission-track Dating Constrain Paleofluid Circulation in Faults: An Example from Gower Peninsula Fissure Fills, Wales (73272)
Alexis K Ault, Utah State University, Geosciences, Logan, UT, United States, Max Frenzel, Helmholtz-Institute Freiberg for Resource Technology, Freiberg, Germany, Peter W Reiners, University of Arizona, Geosciences, Tucson, AZ, United States, Nigel H Woodcock, University of Cambridge, Cambridge, United Kingdom and Stuart N Thomson, University of Arizona, Department of Geosciences, Tucson, AZ, United States
Hydrothermal and Diagenetic Mineralization on Mars (Invited) (85071)
Bethany L Ehlmann, California Institute of Technology, Pasadena, United States and Daven Patel Quinn, University of Wisconsin, Madison, Madison, WI, United States

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