Search Results - "Idleman, Bruce D."
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Internal and External Modulation of Folding Rates With 104 to 105 Year Time Resolutions From Growth Strata, Pico del Aguila, Spain
Published in Geochemistry, geophysics, geosystems : G3 (01-07-2021)“…Abstract High‐resolution cyclostratigraphy in growth strata are used to reconstruct unsteady folding rates at the regional‐scale Pico del Aguila anticline,…”
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Relict Topography Within the Hangay Mountains in Central Mongolia: Quantifying Long‐Term Exhumation and Relief Change in an Old Landscape
Published in Tectonics (Washington, D.C.) (01-08-2018)“…The Hangay Mountains are a high‐elevation, low‐relief landscape within the greater Mongolian Plateau of central Asia. New bedrock apatite (U‐Th)/He…”
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Characterization of helium release from apatite by continuous ramped heating
Published in Chemical geology (05-01-2018)“…Knowledge of the kinetic behavior of He in apatite and other U- and Th-bearing minerals comes largely from detailed step-heating experiments, yet such…”
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Nitrogen concentration and delta N of altered oceanic crust obtained on ODP Legs 129 and 185: Insights into alteration-related nitrogen enrichment and the nitrogen subduction budget
Published in Geochimica et cosmochimica acta (01-05-2007)“…Knowledge of the subduction input flux of nitrogen (N) in altered oceanic crust (AOC) is critical in any attempt to mass-balance N across arc-trench systems on…”
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Isotope-ratio-monitoring gas chromatography methods for high-precision isotopic analysis of nanomole quantities of silicate nitrogen
Published in Chemical geology (15-05-2007)“…We have developed a system for analyzing nanomole-sized quantities of silicate-derived N 2 by carrier-gas methods, through combination of a metal high-vacuum…”
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Behavior of helium diffusion sinks in apatite: Evidence from continuous ramped heating analysis of borehole and well-characterized samples
Published in Earth and planetary science letters (01-09-2024)“…•Apatites from the KTB boreholes are overdispersed in their (U-Th)/He ages.•(U-Th)/He ages of apatites from depths > 3 km are greater than the expected zero…”
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Screening apatites for (U-Th)/He thermochronometry via continuous ramped heating: He age components and implications for age dispersion
Published in Geochimica et cosmochimica acta (15-02-2018)“…Old slowly-cooled apatites often yield dispersed (U-Th)/He ages for a variety of reasons, some well understood and some not. Analytical protocols like careful…”
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Solubility and trapping of helium in apatite
Published in Geochimica et cosmochimica acta (15-07-2017)“…A fundamental but unquantified assumption in U-Th/He dating of apatite is that grains do not incorporate extraneous helium by solution or other processes, but…”
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Helium diffusion systematics inferred from continuous ramped heating analysis of Transantarctic Mountains apatites showing age overdispersion
Published in Geochimica et cosmochimica acta (01-10-2021)“…Application of apatite (U-Th)/He thermochronology has been hindered by incomplete understanding of diffusion systematics that leads to the single-grain age…”
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Corrigendum to “Characterization of helium release from apatite by continuous ramped heating” [CHEMGE: 476, 5 January 2018; 223-232]
Published in Chemical geology (20-03-2018)Get full text
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Paleoenvironment and paleoecology of a Late Paleocene high-latitude terrestrial succession, Arkose Ridge Formation at Box Canyon, southern Talkeetna Mountains, Alaska
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-05-2014)“…Paleogene sedimentary rocks of the Arkose Ridge Formation (Talkeetna Mountains, Alaska) preserve a record of a fluvial–lacustrine depositional environment and…”
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Age, distribution, tectonics, and eustatic controls of the Paranense and Caribbean marine transgressions in southern Bolivia and Argentina
Published in Journal of South American earth sciences (01-09-2005)“…Marine transgression onto the South American continent took place at least twice in the Miocene along distinct paleogeographic corridors. The first event…”
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Nitrogen concentration and δ 15N of altered oceanic crust obtained on ODP Legs 129 and 185: Insights into alteration-related nitrogen enrichment and the nitrogen subduction budget
Published in Geochimica et cosmochimica acta (2007)“…Knowledge of the subduction input flux of nitrogen (N) in altered oceanic crust (AOC) is critical in any attempt to mass-balance N across arc-trench systems on…”
Get full text
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