Search Results - "EBERL, Dennis D"
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Reduction of structural Fe(III) in nontronite by methanogen Methanosarcina barkeri
Published in Geochimica et cosmochimica acta (15-02-2011)“…Clay minerals and methanogens are ubiquitous and co-exist in anoxic environments, yet it is unclear whether methanogens are able to reduce structural Fe(III)…”
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2
Role of Microbes in the Smectite-to-Illite Reaction
Published in Science (American Association for the Advancement of Science) (06-02-2004)“…Temperature, pressure, and time have been thought to control the smectite-to-illite (S-I) reaction, an important diagenetic process used for petroleum…”
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3
The formation of illite from nontronite by mesophilic and thermophilic bacterial reaction
Published in Clays and clay minerals (01-02-2011)“…The formation of illite through the smectite-to-illite (S-I) reaction is considered to be one of the most important mineral reactions occurring during…”
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4
Chemical and mineralogical characteristics of French green clays used for healing
Published in Clays and clay minerals (01-08-2008)“…The worldwide emergence of infectious diseases, together with the increasing incidence of antibiotic-resistant bacteria, elevate the need to properly detect,…”
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Quantitative x-ray diffraction analysis of clay-bearing rocks from random preparations
Published in Clays and clay minerals (01-12-2001)“…An internal standard X-ray diffraction (XRD) analysis technique permits reproducible and accurate calculation of the mineral contents of rocks, including the…”
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Formation of replicating saponite from a gel in the presence of oxalate: implications for the formation of clay minerals in carbonaceous chondrites and the origin of life
Published in Astrobiology (01-06-2012)“…The potential role of clay minerals in the abiotic origin of life has been the subject of ongoing debate for the past several decades. At issue are the clay…”
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7
What Makes a Natural Clay Antibacterial?
Published in Environmental science & technology (15-04-2011)“…Natural clays have been used in ancient and modern medicine, but the mechanism(s) that make certain clays lethal against bacterial pathogens has not been…”
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8
Microbial reduction of Fe(III) in the Fithian and Muloorina illites; contrasting extents and rates of bioreduction
Published in Clays and clay minerals (01-02-2006)“…Shewanella putrefaciens CN32 reduces Fe(III) within two illites which have different properties: the Fithian bulk fraction and the <0.2 µm fraction of…”
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9
Mineralogical variables that control the antibacterial effectiveness of a natural clay deposit
Published in Environmental geochemistry and health (01-08-2014)“…As antibiotic-resistant bacterial strains emerge and pose increased global health risks, new antibacterial agents are needed as alternatives to conventional…”
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10
Holocene history of drift ice in the northern North Atlantic: Evidence for different spatial and temporal modes
Published in Paleoceanography (01-06-2006)“…We present new high‐resolution proxy data for the Holocene history of drift ice off Iceland based on the mineralogy of the <2‐mm sediment fraction using…”
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Control of Fe(III) site occupancy on the rate and extent of microbial reduction of Fe(III) in nontronite
Published in Geochimica et cosmochimica acta (01-12-2005)“…A quantitative study was performed to understand how Fe(III) site occupancy controls Fe(III) bioreduction in nontronite by Shewanella putrefaciens CN32. NAu-1…”
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Late Quaternary stratigraphy and sedimentation patterns in the western Arctic Ocean
Published in Global and planetary change (01-07-2009)“…Sediment cores from the western Arctic Ocean obtained on the 2005 HOTRAX and some earlier expeditions have been analyzed to develop a stratigraphic correlation…”
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Significant differences in late Quaternary bedrock erosion and transport: East versus West Greenland ∼70°N - evidence from the mineralogy of offshore glacial marine sediments
Published in Journal of quaternary science (01-07-2015)“…ABSTRACT We use quantitative X‐ray diffraction to determine the mineralogy of late Quaternary marine sediments from the West and East Greenland shelves…”
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Direct observation of heavy metal-mineral association from the Clark Fork River Superfund Complex: Implications for metal transport and bioavailability
Published in Geochimica et cosmochimica acta (01-04-2005)“…Two sets of samples from riverbeds and adjacent floodplains, separated by 80 river kilometers, were collected from the Clark Fork River Superfund Complex,…”
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Provenance of Holocene sediment on the Chukchi-Alaskan margin based on combined diffuse spectral reflectance and quantitative X-Ray Diffraction analysis
Published in Global and planetary change (01-07-2009)“…Sediment clay and silt mineral assemblages provide an excellent means of assessing the provenance of fine-grained Arctic sediment especially when a unique…”
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Holocene variations in mineral and grain-size composition along the East Greenland glaciated margin (ca 67°–70°N): Local versus long-distance sediment transport
Published in Quaternary science reviews (01-09-2010)“…Quantitative X-Ray Diffraction (qXRD) analysis of the <2 mm sediment fraction from surface (sea floor) samples, and marine sediment cores that span the last…”
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Continental-scale patterns in soil geochemistry and mineralogy: Results from two transects across the United States and Canada
Published in Applied geochemistry (01-08-2009)“…In 2004, the US Geological Survey (USGS) and the Geological Survey of Canada (GSC) initiated a pilot study that involved collection of more than 1500 soil…”
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The influence of oxalate-promoted growth of saponite and talc crystals on rectorite; testing the intercalation-synthesis hypothesis of 2:1 layer silicates
Published in Clays and clay minerals (01-08-2013)“…The intercalating growth of new silicate layers or metal hydroxide layers in the interlayer space of other clay minerals is known from various mixed-layer clay…”
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Arsenic in sediments, groundwater, and streamwater of a glauconitic Coastal Plain terrain, New Jersey, USA—Chemical “fingerprints” for geogenic and anthropogenic sources
Published in Applied geochemistry (01-05-2011)“…► Arsenic inputs to a Coastal Plain stream are mainly geogenic. ► Arsenic inputs from orchard pesticide residues were not clearly identified. ► The arsenic…”
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Ostwald Ripening of Clays and Metamorphic Minerals
Published in Science (American Association for the Advancement of Science) (27-04-1990)“…Analyses of particle size distributions indicate that clay minerals and other diagenetic and metamorphic minerals commonly undergo recrystallization by Ostwald…”
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