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Showing 1 to 20 of 49 for “"fission track"”.

  1. On apatite fission-track analysis and heat transfer processes in the upper crust

    Fission-track ages and confined track-length measurements from detrital apatites recovered from Ocean Drilling Program (ODP) Leg 116 Site 717 and 718 cores of distal Bengal Fan sediments provide information on both the thermal history of sediments recovered at these two sites and the cooling rates …

    texas Repository record for On apatite fission-track analysis and heat transfer processes in the upper crust (opens in a new tab)

  2. Uplift history and geomorphic development of the Southern Alps, New Zealand, assessed by fission track analysis

    … of the Southern Alps has been studied, using fission track analysis of basement samples in combination with measurement of the present geomorphology of the Southern Alps. During the late Cenozoic the Pacific plate has been converging obliquely with the Australia plate in South Island, New …

    waikato-masters Repository record for Uplift history and geomorphic development of the Southern Alps, New Zealand, assessed by fission track analysis (opens in a new tab)

  3. Neoproterozoic to Holocene tectonothermal evolution of the southern Cantabrian Mountains NW Iberia, revealed by apatite fission-track thermochronology

    … been insignificant to totally anneal preexisting fission tracks. AFT grain-age subcomponents indicate AFT partial annealing zone (PAZ) conditions in the Narcea Antiform may have prevailed from as early as Neoproterozoic time. Alternatively, many pre-Stephanian Palaeozoic rocks near major …

    heid-diss Repository record for Neoproterozoic to Holocene tectonothermal evolution of the southern Cantabrian Mountains NW Iberia, revealed by apatite fission-track thermochronology (opens in a new tab)

  4. Argon and Neon Diffusion in Lunar Impact Glass & The Development of the Electron Microprobe Zircon Fission-Track Dating Technique

    … is presented for dating zircon using the fission-track technique. Chapters two and three describe experiments and modeling to determine the diffusion kinetics of Ar and Ne in lunar impact glass.</p>

    syracuse-diss Repository record for Argon and Neon Diffusion in Lunar Impact Glass & The Development of the Electron Microprobe Zircon Fission-Track Dating Technique (opens in a new tab)

  5. Integrating apatite (U-Th)/He and fission track dating for a comprehensive thermochronological analysis: refining the uplift history of the Teton Range

    … Inversion of the typical (U-Th)/He (AHe) and fission track (AFT) relationship in a few of the Teton Range samples is a result of intense zoning, primarily in apatite from Precambrian layered gneisses. Nonetheless, both the AHe and AFT ages consistently indicate slight differential uplift of …

    vt Repository record for Integrating apatite (U-Th)/He and fission track dating for a comprehensive thermochronological analysis: refining the uplift history of the Teton Range (opens in a new tab)

  6. New Insight Into the Thermal-Tectonic History of the Southern Antarctic Peninsula: (U-Th-Sm)/He and Fission-Track Thermochronologic Results From Northwest Palmer Land and Alexander Island

    … ages obtained via (U-Th-Sm)/He and fission-track analyses of apatite and zircon from arc granitoids of northwest Palmer Land and fore-arc rocks of the LeMay and Fossil Bluff Groups of Alexander Island. These data were modeled via Monte Carlo simulations to generate time-temperature …

    south-carolina Repository record for New Insight Into the Thermal-Tectonic History of the Southern Antarctic Peninsula: (U-Th-Sm)/He and Fission-Track Thermochronologic Results From Northwest Palmer Land and Alexander Island (opens in a new tab)

  7. A combination of apatite fission track and (U-Th)/He thermochronometers to constrain the escarpment evolution in south eastern Australia: a case study of high elevation passive margins

    In this project apatite fission track and (U-T)/He thermochronometers are used to determine the cooling history of rocks from the coastal (south eastern New South Wales) and the interior (Bathurst area) regions of the eastern Australia high elevation passive margin. Two traverses across the coastal …

    glasgow Repository record for A combination of apatite fission track and (U-Th)/He thermochronometers to constrain the escarpment evolution in south eastern Australia: a case study of high elevation passive margins (opens in a new tab)

  8. Regional Deformation and Dynamic Processes of the Southern Puna Plateau, Central Andes

    … U-Pb geochronological and detrital apatite fission-track thermochronological data suggest that the oldest sedimentary units on the SE (southeastern) and SW (southwestern) Puna Plateau belong to upper Eocene to lower Oligocene, defining a regional sedimentary basin across the plateau region …

    toronto-retro Repository record for Regional Deformation and Dynamic Processes of the Southern Puna Plateau, Central Andes (opens in a new tab)

  9. Post-Orogenic Thermal History and Exhumation of the Northern Appalachian Basin: Low-Temperature Thermochronologic Constraints

    <p>Since the early development of the fission-track dating method by Price, Walker and Fleischer in the 1960’s and 1970’s, the method has evolved into a robust tool for constraining thermal histories and determining exhumation rates within the upper continental crust. Low-temperature …

    syracuse-diss Repository record for Post-Orogenic Thermal History and Exhumation of the Northern Appalachian Basin: Low-Temperature Thermochronologic Constraints (opens in a new tab)

  10. Tectonic-erosion interactions : insights from the paleo-drainage of the Brahmaputra River

    … is performed using magnetostratigraphy, apatite fission-track and luminescence dating. Provenance analysis using zircon and apatite U-Pb dating allows the reconstruction of the Miocene-Quaternary paleo-drainage of the Brahmaputra River and the documentation of the tectonic evolution of two poorly …

    lancaster Repository record for Tectonic-erosion interactions : insights from the paleo-drainage of the Brahmaputra River (opens in a new tab)

  11. The use of detrital mineral thermochronology to explore relationships among climate, erosion, and tectonics in the Nepal Himalaya

    … rates at the Himalayan range front, and apatite fission-track data are used to pinpoint the timing of this acceleration to between 2.5 and 0.9 million years ago.

    mit Repository record for The use of detrital mineral thermochronology to explore relationships among climate, erosion, and tectonics in the Nepal Himalaya (opens in a new tab)

  12. The Effect of Pressure on Ion Track Formation in Minerals

    … and chemical changes can occur in these ion tracks with diameters of several nm. In nature, such trails are generated by spontaneous fission of 238U-nuclei. So far, irradiation experiments with heavy ions were always performed under vacuum conditions. Studies of ion-track formation in …

    heid-diss Repository record for The Effect of Pressure on Ion Track Formation in Minerals (opens in a new tab)

  13. Using thermochronology to constrain exhumation in the Swiss-Italian Alps

    … (U-Th)/He technique on zircon and apatite and fission track on subset of zircons. Nine samples were collected from the Lepontine Dome, north of the Insubric Line, six of which were in an approximate vertical, or elevation, transect. Three samples were also taken in a vertical transect from the …

    mit Repository record for Using thermochronology to constrain exhumation in the Swiss-Italian Alps (opens in a new tab)

  14. Thermochronology of ‘The Gap’, Western Australia

    … using apatite triple dating: Lu−Hf, U−Pb and fission track (AFT). The apatite Lu−Hf and U−Pb systems record metamorphism during the late Mesoproterozoic tectonomagmatic Maralinga event in both the Coompana and Madura Provinces. Apatite Lu−Hf and U−Pb reset ages of c. 1.20−1.14 Ga were obtained …

    adelaide Repository record for Thermochronology of ‘The Gap’, Western Australia (opens in a new tab)

  15. Evolution of the Kingman Arch, southern Nevada

    … the Colorado River Extensional Corridor. Apatite fission track and 40Ar/39Ar thermochronological analyses were conducted for granite samples collected from a 4.5 kilometer thick Precambrian section in the central McCullough Range. 40Ar/ 39Ar data suggest slow cooling of the Kingman Arch between …

    unlv Repository record for Evolution of the Kingman Arch, southern Nevada (opens in a new tab)

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