Geochimica et Cosmochimica Acta | CU Experts

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Metabolic imprints in the hydrogen isotopes of Archaeoglobus fulgidus tetraether lipids 2024
BrGDGT lipids in cold regions reflect summer soil temperature and seasonal soil water chemistry 2024
Exploring uranium isotopes in shark teeth as a paleo-redox proxy 2024
Controls on the hydrogen isotope composition of tetraether lipids in an autotrophic ammonia-oxidizing marine archaeon 2023
Chemistry of springs across the Mariana forearc: Carbon flux from the subducting plate triggered by the lawsonite-to-epidote transition? 2023
Experimental serpentinization of iron-rich olivine (hortonolite): Implications for hydrogen generation and secondary mineralization on Mars and icy moons 2022
A mechanistic investigation of the coral Mn/Ca-based trade-wind proxy at Kiritimati 2022
The Fe-Si-C system at extreme P-T conditions: A possible core crystallization pathway for reduced planets 2022
An Experimental-XANES Investigation of Cr Valence Systematics in Basaltic Liquids and Applications to Modeling Cr²⁺/Σ Cr Evolution in Crystallizing Basaltic Magma Systems 2021
Xenon systematics of individual lunar zircons, a new window on the history of the lunar surface 2020
Hydrogen generation and iron partitioning during experimental serpentinization of an olivine-pyroxene mixture 2020
Fe-bearing phases in modern lacustrine microbialites from Mexico 2019
Unravelling the high-altitude Nansen blue ice field meteorite trap (East Antarctica) and implications for regional palaeo-conditions 2019
Formation and stabilization of elemental sulfur through organomineralization 2019
Effect of iron limitation on the isotopic composition of cellular and released fixed nitrogen in Azotobacter vinelandii 2019
Large carbon isotope variability during methanogenesis under alkaline conditions 2018
Deconvolving the saturation state and temperature controls on benthic foraminiferal Li/Ca, based on downcore paired B/Ca measurements and coretop compilation 2018
Iron transformations during low temperature alteration of variably serpentinized rocks from the Samail ophiolite, Oman 2018
Mg/Ca-temperature calibration for the benthic foraminifera Melonis barleeanum and Melonis pompilioides 2017
Freezing of perchlorate and chloride brines under Mars-relevant conditions 2017
Iron isotope biogeochemistry of Neoproterozoic marine shales 2017
Low temperature hydrogen production during experimental hydration of partially-serpentinized dunite 2017
Influence of radiation damage on titanite He diffusion kinetics 2017
Coordinated U–Pb geochronology, trace element, Ti-in-zircon thermometry and microstructural analysis of Apollo zircons 2017
Primary multiple sulfur isotopic compositions of pyrite in 2.7 Ga shales from the Joy Lake sequence (Superior Province) show felsic volcanic array-like signature 2017
Low-temperature formation and stabilization of rare allotropes of cyclooctasulfur (β-S₈ and γ-S₈) in the presence of organic carbon at a sulfur-rich glacial site in the Canadian High Arctic 2017
Reply to "Methane origin in the Samail ophiolite: Comment on 'Modern water/rock reactions in Oman hyperalkaline peridotite aquifers and implications for microbial habitability'" [Geochim. Cosmochim. Acta 179 (2016) 217-241] 2017
Aerobic respiration along isopycnals leads to overestimation of the isotope effect of denitrification in the ocean water column 2017
Thermodynamic constraints on the formation of condensed carbon from serpentinization fluids 2016
Characterization of dissolved organic material in the interstitial brine of Lake Vida, Antarctica 2016
Temperature trends for reaction rates, hydrogen generation, and partitioning of iron during experimental serpentinization of olivine 2016
Modern water/rock reactions in Oman hyperalkaline peridotite aquifers and implications for microbial habitability 2016
Mercury transformation and release differs with depth and time in a contaminated riparian soil during simulated flooding 2016
Oxidative mobilization of cerium and uranium and enhanced release of “immobile” high field strength elements from igneous rocks in the presence of the biogenic siderophore desferrioxamine B 2015
Oligo-Miocene mafic intrusions of the San Juan Volcanic Field, southwestern Colorado, and their relationship to voluminous, caldera-forming magmas 2015
Investigation of extractable organic compounds in deep-sea hydrothermal vent fluids along the Mid-Atlantic Ridge 2015
Texture-specific Si isotope variations in Barberton Greenstone Belt cherts record low temperature fractionations in early Archean seawater 2015
Lu-Hf isotope systematics of the Hadean-Eoarchean Acasta Gneiss Complex (Northwest Territories, Canada) 2014
Component geochronology in the polyphase ca. 3920 Ma Acasta Gneiss 2014
Improved oxygen isotope temperature calibrations for cosmopolitan benthic foraminifera 2014
The influence of minerals on decomposition of the n-alkyl-alpha-amino acid norvaline under hydrothermal conditions (vol 104, pg 330, 2013) 2014
Aeolian controls of soil geochemistry and weathering fluxes in high-elevation ecosystems of the Rocky Mountains, Colorado 2013
The influence of minerals on decomposition of the n-alkyl-α-amino acid norvaline under hydrothermal conditions 2013
Characterization of alteration textures in Cretaceous oceanic crust (pillow lava) from the N-Atlantic (DSDP Hole 418A) by spatially-resolved spectroscopy 2012
Revised calibration of the MBT-CBT paleotemperature proxy based on branched tetraether membrane lipids in surface soils 2012
Sulfur mass-independent fractionation in liquid phase chemistry: UV photolysis of phenacylphenylsulfone as a case study 2012
Is apatite U–Th zonation information necessary for accurate interpretation of apatite (U–Th)/He thermochronometry data? 2012
A new method of calculating electrical conductivity with applications to natural waters 2012
Geochemistry of surface sediments from the fjords of Northern Chilean Patagonia (44-47°S): Spatial variability and implications for paleoclimate reconstructions 2012
Catabolic and anabolic energy for chemolithoautotrophs in deep-sea hydrothermal systems hosted in different rock types 2011
Interpreting data dispersion and “inverted” dates in apatite (U–Th)/He and fission-track datasets: An example from the US midcontinent 2011
Chemistry of hot springs along the Eastern Lau Spreading Center 2011
Ancient graphite in the Eoarchean quartz-pyroxene rocks from Akilia in southern West Greenland I: Petrographic and spectroscopic characterization 2010
Ancient graphite in the Eoarchean quartz-pyroxene rocks from Akilia in southern West Greenland II: Isotopic and chemical compositions and comparison with Paleoproterozoic banded iron formations 2010
Acid-sulfate weathering pathways at Cerro Negro, Nicaragua 2010
Bed-scale reaction transport modeling of dolomitization reveals the emergence of self-organizing patterns 2010
Detrital sediments of the ca. 3.77 Ga Nuvvuagittuq Supracrustal Belt, Quebec (Canada) 2010
Growth and aggregation of ZnS nanoparticles during coprecipitation with aquatic humic substances 2010
Hot shock vs. Cold shock zircon across the Vredefort Dome: A guide for interpreting residua of the LHB? 2010
Investigating cell-mineral interactions and the geochemistry of methanogenic activity in a low-temperature serpentinizing system 2010
Low temperature S biomineralization at a supraglacial spring system in the Canadian High Arctic 2010
Measurements of halogen oxides and speciated mercury at a coastal site in Pensacola, FL 2010
Nd-142 anomalies in the Nuvvuagittuq supracrustal belt revisited 2010
Ralstonia species mediate Fe-oxidation in the deep biosphere of Henderson Mine 2010
Slope aspect and weathering in the Colorado Front Range 2010
Sources of reactive halogen species and oxygenated VOC over biologically active upwelling reactions of the tropical Pacific Ocean 2010
Trace elements in sulfides from Precambrian stromatolites and banded iron-formations 2010
The influence of carbon source on abiotic organic synthesis and carbon isotope fractionation under hydrothermal conditions 2010
A maximum age of the Nuvvuagittuq supracrustal belt, northern Quebec (Canada) at 3.77 Ga 2009
A new laser-based, field-deployable analyzer for laboratory-class stable isotope measurements in water 2009
Carbonaceous material associated with apatite in the Akilia Qp rock 2009
Genesis of igneous rocks associated with El Teniente Cu-deposit, Chile 2009
Historial emissions of atmospheric compounds resulting from biomass burning 2009
How much biogenic SOA is present in the Northeastern US? 2009
Hydrogen in the Earth's interior 2009
Life in the ice cover and underlying cold brines of Lake Vida, Antarctica 2009
Mercury(II)-sulfur binding in peat 2009
Microbial Fe cycling at basalt-biofilm interfaces on the seafloor 2009
Microbial community structure and atmospheric oxygen ca. 2.4 Ga 2009
Modeling organic aerosols during MILAGRO: importance of biogenic secondary organic aerosols 2009
Space-time-composition variations in continental magmatism during mid-Tertiary low angle subduction, western U. S 2009
Apatite (U–Th)/He thermochronometry using a radiation damage accumulation and annealing model 2009
Thermodynamic constraints on hydrogen generation during serpentinization of ultramafic rocks 2009
Effects of non-stoichiometry on the spinel structure at high pressure: Implications for Earth's mantle mineralogy 2009
Evolution of flowpaths in an alpine watershed of the Colorado Front Range, USA 2008
Fractures and the weathering front 2008
Metamorphic zircon, trace elements and thermal history of the ca. 3.75 Ga Nuvvuagittuq supracrustal belt (Porpoise Cove), Quebec (Canada) 2008
Microbial glass bioalteration: Inferring mechanisnis of blocorrosion from trace fossil morphology 2008
Microbially-mediated cycling of metals in deep subsurface fluids at Henderson Mine, Colorado 2008
Synchrotron X-ray studies of bacteria-mineral-metal ion interactions 2008
Thermal histories in sedimentary basins from integrated low-temperature thermochronometry: An example from the High Plains of New Mexico and western Texas 2008
Transformations across the bedrock/saprolite - regolith boundary 2008
Chemical weathering of a marine terrace chronosequence, Santa Cruz, California I: Interpreting rates and controls based on soil concentration-depth profiles 2008
Thermal events documented in Hadean zircons by ion microprobe depth profiles 2007
(U-Th)/He apatite constraints on the erosional history of the southwestern Colorado Plateau and implications for Early Tertiary uplift and carving of a "Proto-Grand Canyon" 2007
Acceptance of the 2006 F. W. Clarke Award 2007
Metamorphic history of the pre-3750 Ma Nuvvuagittuq Supracrustal Belt, Quebec (Canada) 2007
Stability of nanoparticles in the presence of biological material and their toxicity 2007
Thermal events documented in Hadean zircons by ion microprobe depth profiles 2007
Probing the oxidation-reduction properties of terrestrially and microbially derived dissolved organic matter 2007
Chemical and isotopic evidence for widespread Eoarchean metasedimentary enclaves in southern West Greenland 2006
Dynamics of mantle plumes and their implications for the heat budget and composition of the mantle 2006
Further Hf isotope evidence for Hadean continental crust 2006
The Nd-142 record of Hadean zircons 2006
Late Holocene radiocarbon and aspartic acid racernization dating of deep-sea octocorals 2006
Enamel diagenesis at South African Australopith sites: Implications for paleoecological reconstruction with trace elements 2006
Variable carbon isotope fractionation expressed by aerobic CH₄-oxidizing bacteria 2006
Multiple sulfur isotopes of sulfides from sediments in the aftermath of Paleoproterozoic glaciations 2005
Hydration of olivine and the Earth's deep water cycle 2005
ICRONUS meets CRONUS-Earth: Improved calculations for cosmogenic dating methods - From neutron intensity to previously ignored correction factors 2005
Interactions between dissolved organic matter and mercury in aquatic environments 2005
Mechanical-chemical weathering linkage: Erosion and solute fluxes due to glaciers 2005
Mystery of the volcanic mass-independent sulfur isotope fractionation signature in the antarctic ice-core 2005
The influence of dissolved organic matter on cinnabar dissolution 2005
The past geochemical environment of Meridiani Planum, Mars, and its implications for astrobiology 2005
Dissolution of cinnabar (HgS) in the presence of natural organic matter 2005
Halogen geochemistry of the McMurdo dry valleys lakes, Antarctica: Clues to the origin of solutes and lake evolution 2005
Adsorption of organic matter at mineral/water interfaces: I. ATR-FTIR spectroscopic and quantum chemical study of oxalate adsorbed at boehmite/water and corundum/water interfaces 2004
Detecting hydration in the Earth's interior 2004
Oxygen isotope geochemistry of high-Mg andesites and adakites: Implications for slab melting 2004
Prebiotic methane abundance in the hydrogen/CO2-rich atmosphere 2004
Experimental constraints on the hydrothermal reactivity of organic acids and acid anions: I. Formic acid and formate 2003
Experimental study of the hydrothermal reactivity of organic acids and acid anions: II. Acetic acid, acetate, and valeric acid 2003
Selenium speciation and partitioning within Burkholderia cepacia biofilms formed on α-Al₂O₃ surfaces 2003
S-8 aerosols in the Archean atmosphere 2003
Seafloor bioalteration of sulfide minerals: Results from in situ incubation studies 2003
Mass-independent isotope effects in Archean (2.5 to 3.8 Ga) sedimentary sulfides determined by ion microprobe analysis 2003
Formation of meteorite hydrocarbons from thermal decomposition of siderite (FeCO₃) 2003
North Atlantic Oscillation record from deep-sea corals 2002
The development of Neogene grasslands in relation to climate and atmospheric CO2: The carbon isotope ratios of fossil phytoliths 2002
The timing of atmosphere and ocean changes during an abrupt climate change 2002
Direct observations of aluminosilicate weathering in the hyporheic zone of an Antarctic Dry Valley stream 2002
Chemical weathering in the foreland of a retreating glacier 2000
Chlorine-36 in the waters of the McMurdo Dry Valley lakes, southern Victoria Land, Antarctica: Revisited 1998
Lithium in waters of a polar desert 1997
Recognition of >=3850 Ma water-lain sediments in West Greenland and their significance for the early Archaean Earth 1997
THE FLUVIAL GEOCHEMISTRY AND DENUDATION RATE OF THE GUAYANA SHIELD IN VENEZUELA, COLOMBIA, AND BRAZIL 1995
MODELING AND INTERPRETING D/H RATIOS IN TREE-RINGS - A TEST-CASE OF WHITE-PINE IN THE NORTHEASTERN UNITED-STATES 1994
STABLE CARBON AND NITROGEN ISOTOPES IN ALGAE AND DETRITUS FROM THE ORINOCO RIVER FLOODPLAIN, VENEZUELA 1992
EFFECT OF IRON DIAGENESIS ON THE TRANSPORT OF COLLOIDAL CLAY IN AN UNCONFINED SAND AQUIFER 1992
TRACE-METALS AND DISSOLVED ORGANIC-CARBON IN ESTUARIES AND OFFSHORE WATERS OF NEW-JERSEY, USA 1991
GERMANIUM GEOCHEMISTRY IN THE SOUTHERN-CALIFORNIA BORDERLANDS 1989
REACTIVE IRON TRANSPORT IN AN ACIDIC MOUNTAIN STREAM IN SUMMIT-COUNTY, COLORADO - A HYDROLOGIC PERSPECTIVE 1989
ELECTROSTATIC CHARACTERIZATION OF OXYGEN SITES IN MINERALS 1989
DISSOLUTION AT DISLOCATION ETCH PITS IN QUARTZ 1986
PYROLYSIS-MASS SPECTROMETRY PATTERN-RECOGNITION ON A WELL-CHARACTERIZED SUITE OF HUMIC SAMPLES 1985
THE D/H RATIOS OF SAP IN TREES - IMPLICATIONS FOR WATER SOURCES AND TREE-RING D/H RATIOS 1985
THE CONTRIBUTION OF HUMIC SUBSTANCES TO THE ACIDITY OF COLORED NATURAL-WATERS 1983
CHEMICAL MASS-BALANCE IN ESTUARIES 1974
Hydrogen generation for microbial activity in ultramafic-hosted hydrothermal systems 2010
Investigations of the roles of minerals in hydrothermal organic geochemistry 2010
Petrogenetic inferences from zircon/whole rock minor and trace element partitioning in ancient gneisses 2010
Titanium distribution in a swimming pool - The case for dissolution 2010
Thermal effects of impacts on the Hadean Earth 2009
Constraints on hydrogen generation during serpentinization of ultramafic rocks 2008
Habitability of serpentinizinig systems for methanogenic microorganisms: An energy balance model 2008
The first hydrogen economy: A sulfur isotopic record of S-0 metabolisms for early life 2008
Thermal state of the lithosphere during Late Heavy Bombardment 2008
Constraints on the Earth's mantle heat budget from mantle plumes 2007
Graphite plus apatite in > 3.83 Ga ferruginous quartz-pyroxene (supracrustal) rocks from Akilia, southern West Greenland 2007
Compound specific isotope analysis and the challenge for identifying life: The role of biosignatures and abiosignatures 2006
Isotopic signatures of abiotic organic synthesis under geologic conditions 2006
Carbon and hydrogen isotope measurements in abiogenic hydrocarbon synthesis 2005
Energetic constraints on subsurface biomass production within the igneous ocean crust 2005
Heterogeneous Hadean hafnium: Evidence of continental crust by 4.5 Ga? 2005
Experimental study of abiotic formation of organic compounds in hydrothermal systems 2004
Geochemistry of early Archean Akilia association supracrustal rocks on Innersuartuut, West Greenland 2004
Inclusion mineralogy of pre-4.0 Ga zircons from Jack Hills, Western Australia: A progress report 2004
Multiple sulfur isotopic analyses of sulfides from Paleoproterozoic sediments by ion microprobe 2004
Progress in multiple sulfur isotope analysis by ion microprobe 2004
Synchrotron-based studies of nanoparticulate iron oxyhydroxide growth and metal uptake 2004
When did conditions appropriate for life emerge? Further results of the mission to really early Earth 2004
Xenon isotopes in ancient zircons and the Pu/U ratio of the early Earth 2004
Evidence of extinct Pu-244 in Hadean zircons 2003
Geology, age, and origin of Akilia supracrustal rocks, Greenland 2003
Investigating nitrogen biosignatures in Early Archean and Proterozoic metasedimentary phyllosilicates 2003
Mass-dependent and mass-independent sulfur isotopic effects in Archean and Paleoproterozoic sulfides and sulfates 2003
The mission to really early Earth: A progress report 2003
The oldest known sediments on Earth: Implications for exobiology 2003
A mission to really early Earth: When did the earth become suitable for habitation? 2002

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