Results 11 to 20 of about 19,992 (274)

Fission track studies on hornblende, biotite and phlogopite from Sweden [PDF]

Bulletin of the Geological Society of Finland, 1972
Fission track studies and K-Ar dating on three silicate minerals from Sweden have given the following results: Fission track age K—Ar age RM 07249 hornblende, Malmberget, Fragment 1 1255 m.y. 1875 m.y. » 2 450 » RM 620569 biotite, Ingelsbo Fragment 1 305
E. Welin, I. Lundström, G. Åberg
doaj   +1 more source

Confined fission-track revelation in apatite: how it works and why it matters [PDF]

Geochronology, 2021
We present a new model for the etching and revelation of confined fission tracks in apatite based on variable along-track etching velocity, vT(x). Insights from step-etching experiments and theoretical energy loss rates of fission fragments suggest two ...
R. A. Ketcham, M. T. Tamer
doaj   +1 more source

Deconvolution of fission-track length distributions and its application to dating and separating pre- and post-depositional components [PDF]

Geochronology, 2021
To enable the separation of pre- and postdepositional components of the length distribution of (partially annealed) horizontal confined fission tracks, the length distribution is corrected by deconvolution.
P. K. Jensen, K. Hansen
doaj   +1 more source

Toward ternary fission accompanied by the⁸Be nucleus

Eurasian Journal of Physics and Functional Materials, 2021
Experiments in preparation for search for uranium ternary fission by means of nuclear track emulsion are summarized. The study will be focused on the possible involvement of the unstable nucleus8Be in the suggested scenario of the collinear tri-partition ...
D. A. Artemenkov, V. .. Bradnova, M. V. Gustova, O. M. Ivanov, R. R. Kattabekov, K. Z. Mamatkulov, V. V. Rusakova, A. V. Sabelnikov, A. A. Zaitsev, P. I. Zarubin, I. G. Zarubina, I. .. Ambrozova, M. .. Kakona, M. .. Luzova, O. .. Ploc, K. .. Turek, E. .. Firu, M. .. Haiduc, A. .. Neagu, R. .. Stanoeva   +19 more
doaj   +1 more source

Thermal annealing of implanted ²⁵²Cf fission tracks in monazite [PDF]

Geochronology, 2021
A series of isochronal heating experiments were performed to constrain monazite fission track thermal annealing properties. The 252Cf fission tracks were implanted into monazite crystals from the Devonian Harcourt granodiorite (Victoria, Australia) on ...
S. Jones, A. Gleadow, B. Kohn
doaj   +1 more source

Exhumation of the Sierra de Cameros (Iberian Range, Spain): constraints from low-temperature thermochronology [PDF]

, 2008
We present new fission-track and (U–Th)/He data from apatite and zircon in order to reconstruct the exhumation of the Sierra de Cameros, in the northwestern part of Iberian Range, Spain. Zircon fission-track ages from samples from the depocentre of the
Casquet, F. M. Stuart, Foeken, Gil-Imaz, Gil-Imaz, Gil-Imaz, Goldberg, Guiraud, Hurford, Ketcham, L. Barbero, Mas, Mas, Mata, Muñoz, P. Del Río, Schudack, Tischer   +17 more
core   +2 more sources

FAIR fission track analysis with geochron@home [PDF]

Geochronology
Fission track thermochronology is based on the visual analysis of optical images. This visual process is prone to observer bias. Fission track datasets are currently reported as numerical summary tables. The interpretation of these tables requires a high
P. Vermeesch, T. Band, J. He, R. Galbraith, A. Carter   +4 more
doaj   +1 more source

Exhumation history of the Higher Himalayan Crystalline along Dhauliganga-Goriganga river valleys, NW India: new constraints from fission track analysis [PDF]

, 2009
New apatite and zircon fission track data collected from two transects along the Dhauliganga and Goriganga rivers in the NW Himalaya document exhumation of the Higher Himalayan Crystalline units. Despite sharing the same structural configuration and rock
A. Carter, Ahmad, Beaumont, Blythe, Bojar, Bollinger, Bookhagen, Bouchez, Brandon, Braun, Burbank, Burchfiel, Burg, Davidson, Dezes, Ehlers, Foster, Galbraith, Gansser, Garzanti, Grujic, Gururajan, Heim, Herren, Hodges, Hodges, Hubbard, Huntington, Hurford, Hurford, Jain, Jain, Jain, Jain, Lal, Leech, Mancktelow, Metcalfe, Molnar, Patel, Patriat, Paul, R. C. Patel, Rao, Ray, Rowley, Roy, Schlup, Searle, Searle, Seitz, Singh, Sorkhabi, Srivastava, Stern, Stüwe, Thakur, Thiede, Thiede, Thiede, Valdiya, Vannay, Whipp, Whipp, Whipple, Whipple, Yin   +66 more
core   +1 more source

Tectonic history of the South Tannuol Fault Zone (Tuva region of the northern Central Asian Orogenic Belt, Russia) : constraints from multi-method geochronology [PDF]

, 2020
In this study, we present zircon U/Pb, plagioclase and K-feldspar Ar-40/Ar-39 and apatite fission track (AFT) data along the South Tannuol Fault Zone (STFZ).
De Grave, Johan, Mikhailova, Polina, Nachtergaele, Simon, Van Ranst, Gerben, Vetrov, Evgeny, Vetrova, Natalia, Zhimulev, Fedor   +6 more
core   +1 more source

Fault Slip and Exhumation History of the Willard Thrust Sheet, Sevier Fold‐Thrust Belt, Utah: Relations to Wedge Propagation, Hinterland Uplift, and Foreland Basin Sedimentation [PDF]

, 2019
Zircon (U‐Th)/He (ZHe) and zircon fission track thermochronometric data for 47 samples spanning the areally extensive Willard thrust sheet within the western part of the Sevier fold‐thrust belt record enhanced cooling and exhumation during major thrust ...
Barber, D. E., Eleogram, Bryan, Kelley, Shari, Stockli, Daniel F., Wells, Michael L., Yonkee, W. A.   +5 more
core   +2 more sources