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Helium diffusion and (U–Th)/He thermochronometry of titanite
Geochimica et Cosmochimica Acta, 1999We have explored the diffusivity characteristics of radiogenic He in titanite (sphene) and have developed analytical techniques for (U–Th)/He dating of this mineral. Results of incremental He outgassing experiments performed on titanites from a variety of geological environments suggest a thermally activated volume diffusion mechanism with an ...
Reiners, Peter W., Farley, Kenneth A.
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Zircon ⁴He/³He thermochronometry : methods and applications
2019The radiogenic accumulation and thermally activated diffusive loss of ⁴He from accessory minerals, such as apatite and zircon, has been widely used to recover low-temperature thermal histories and relate them to upper-crustal and near-surface geological processes, such as tectonic exhumation or long-term landscape evolution.
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Argon diffusion in pyroxenes: Implications for thermochronometry and mantle degassing
Earth and Planetary Science Letters, 2011Abstract The rate at which argon diffuses in pyroxenes is relevant to several problems in the Earth and planetary sciences. Pyroxenes are among the most abundant minerals in the Earth's upper mantle and are important hosts for potassium and radiogenic 40 Ar ( 40 Ar*).
William S. Cassata +2 more
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Application of Low-Temperature Thermochronometry to Extensional Tectonic Settings
Reviews in Mineralogy and Geochemistry, 2005Extension and associated tectonic exhumation have been described across a diverse spectrum of geodynamic environments, ranging from lithospheric-scale extension along divergent plate margins to extensional faulting within compressional orogenic belts. Normal faulting structurally dominates extensional tectonic environments such as passive continental ...
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ESR-thermochronometry of the MIZ1 borehole, Tono, Japan
Electron spin resonance (ESR) dating of quartz minerals offers a significant advantage over luminescence dating because of its later signal saturation. We seek to exploit this to develop a thermochronometry system capable of resolving rock cooling rates throughout the Quaternary.Georgina King +7 more
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Forward and Inverse Modeling of Low-Temperature Thermochronometry Data
Reviews in Mineralogy and Geochemistry, 2005The thermochronometric systems discussed in this volume broadly share three features: parent isotopes, daughter products, and one or more time-dependent, temperature-sensitive processes by which daughter products are altered or lost. If these processes can be measured in the laboratory, and their behavior confidently extrapolated to geological time ...
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New Techniques for Noble Gas Geochronometry and Thermochronometry
2017Noble gases were among the first species measured by mass spectrometry and interrogated for geochemical information about the solid Earth. The analytical challenge of measuring them has driven technological development in the field, and new applications have in turn followed from new developments.
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Tracking ancient unconformity development with martite (U-Th)/He thermochronometry
GeologyAbstract Unconformities in the rock record reflect change(s) in tectonics, climate, and/or sediment routing systems. Pinpointing when sub-unconformity rocks reached the near-surface environment (<1 km depth) remains a challenge that inhibits assignment of causality.
Jordan L. Jensen, Alexis K. Ault
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Progress in Methodology of Low Temperature Thermochronometry
Acta Geologica Sinica - English Edition, 2016Gelian GONG, Jibin ZHOU, Weidong SUN
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