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Relationships between large benthic foraminifera and their seagrass habitats, San Salvador, Bahamas
(2008-09-09)
Vegetation beds are important in the ecology and depositional history of platform carbonates. The vegetation itself, frequently dominated by the seagrass Thalassia, has a low preservation potential, but plants and benthic ...
Groundwater Geochemistry, Geology, and Microbiology of Arsenic-contaminated Holocene Alluvial Aquifers, Manikganj, Bangladesh
(2008-09-09)
A multi-disciplinary study, using integrated aspects of geology, groundwater geochemistry including carbon isotope geochemistry, scanning electron microscopy, energy dispersive spectroscopy, and geochemical modeling, reveals ...
Structural, Isotopic, and Kinematic Analysis of Eclogite-Facies Shear Zones and Associated Structures, Lofoten, North Norway
(2008-09-09)
Three variably retrograded, fluid-mediated eclogite occurrences on Flakstadøy, in the Lofoten archipelago of north Norway, display two structurally-controlled styles that are rheological inverses: competent lenses and ...
Geology of the Southernmost Exposures of the Brevard Zone in the Red Hill Quadrangle, Alabama
(2008-09-09)
The southernmost exposures of the Brevard zone were mapped to characterize its lithologic makeup and structural character and to explore its significance to the tectonic evolution of the southernmost Appalachians. Two ...
Remote Sensing of Shallow-Marine Impact Craters on Mars
(2009-02-23)
Impact craters are common on solid planetary bodies in our solar system and are one of the most important physical features from which the surface history of these planetary bodies can be deduced. Remote sensing is a ...
Geochronology and Geochemistry of Mid-Miocene Bonanza Low-Sulfidation Epithermal Ores of the Northern Great Basin, USA
(2008-09-09)
New high precision 40Ar/39Ar geochronology
conducted on previously undated deposits (or deposits with older, less precise K/Ar dates only), indicates that low-sulfidation epithermal Au-Ag mineralization in the northern ...
Tectonic evolution of a Caledonian-aged continental basement eclogite terrane in Liverpool Land, East Greenland
(2008-09-09)
Liverpool Land is located in an interior position within the East Greenland Caledonides. Due to the remoteness of the field locality, very little work has been published on the rocks and structures of Liverpool Land. The ...
40Ar/39Ar Ages of Muscovite from the Western Blue Ridge and Talladega Belt, Georgia and North Carolina
(2008-09-09)
Radiometric age constraints regarding the timing of metamorphism in the western Blue Ridge province of the southern Appalachians have been too limited or uncertain to enable broader correlation and understanding of Taconian, ...
Exhumation History of Caledonian Eclogites in Liverpool Land, East Greenland, and Comparisons with Eclogites in Norway
(2008-09-09)
Lithologic information and 40Ar/39Ar cooling dates are reported from a recently discovered high-pressure (HP) Caledonian eclogite terrane in Liverpool Land, East Greenland, its overlying hanging wall block, and an extensional ...
Geology of the Farmville Metagranite and Associated Units as Exposed at the Notasulga Quarry, Notasulga, Alabama
(2009-07-21)
Predicting the locations and thicknesses of aggregate-affable lithologies (ore units), interburden (non-ore material between ore-units), and overburden (overlying soil/saprolite) on a local level is critical for developing ...