A New U Doped Glass Certified By the European Commission for the Calibration of Fission-Track Dating

Corte, F. De; Bellemans, F.; haute, Peter Van den; Ingelbrecht, C.; Nicholl, C.

doi:10.1007/978-94-015-9133-1_5

Cited by 44 publications

(30 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The introduction of age standards externaldetector (ED), and annealing models [42] led to the development of AFT geochronology, which was initially a dating method, into a powerful tool for uncovering thermal evolution both in the orogen and in the basin [43][44][45]. AFT parameters, such as single-grain age, and confined-track length with occasional apatite chemical analyses, and other low-medium temperature chronological methods are essential for thermal-evolution modeling of rocks from a shallow crust.…”

Section: Samples and Analytical Methodsmentioning

confidence: 99%

Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China

Liu

Zhang

et al. 2013

Chin. Sci. Bull.

View full text Add to dashboard Cite

Xiaoqinling District is an important gold-producing area in China. It ranks second to Jiaodong with regard to gold deposits. The uprising period of the Wenyu granitic pluton and the wall-rocks of the deposit, as well as the mineralizing depth and reserved place of gold ore bodies, are significant to ore exploration. Fission-track (FT) analysis of zircons and apatites of granitic rocks from the Wenyu granitic pluton shows that apatite FT (AFT) data modeling indicates a rapid cooling rate of 20°C/Ma from 138 to 120 Ma after emplacement at 138 Ma. Thermal evolution and inversion curves suggest a secondary phase of fast cooling and uprising from 45 to 35 Ma, and 35 Ma, respectively, with a cooling rate of 6.7°C/Ma and a denudation quantity of ~4.3 km. The last cooling phase took place from <4 Ma, with an average cooling rate of ~11.3°C/Ma and a denudation amount of 1.3 km. Total exhumation quantity of 5.6 km and uprising elevation of 7.3 km are similar to the estimated results of fluid inclusions from the Dongtongyu and Wenyu gold deposits. The 39 Ar/ 40 Ar dating of sericite from the fault planes of the Xunmadao-Xiaohe and Taiyao faults demonstrate two uprising activities of the ore-host metamorphic complex. The Huashan and Wenyu granitic plutons intensively occurred during 77 and 45 Ma, respectively. These data sets are valuable for understanding the uplifting process and for preserving gold ore bodies in the Xiaoqinling area, as well as for further studies on tectonic evolutions of the Taihua Complex and the Qinling-Dabie Orogen.

show abstract

Section: Samples and Analytical Methodsmentioning

confidence: 99%

Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China

Liu

Zhang

et al. 2013

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

“…Irradiation was carried out in the Belgian Reactor 1 (BR1) facility of the Belgian Nuclear Research Centre in Mol. Obtained AFT ages are reported in Table 4 as conventional zeta-ages (Hurford, 1990), calculated using an overall weighted mean zeta of 229.8 ± 4.9 a.cm 2 (personal calibration factor of E. De Pelsmaeker) based on Durango and Fish Canyon Tuff apatite age standards and IRMM 540 dosimeter glasses (De Corte et al, 1998). AFT ages were also calculated as central ages and evaluated by a radial plot to check for potential multiple AFT populations (Galbraith, 1990;Vermeesch, 2009) (Table 4).…”

Section: Apatite Fission Track (Aft) Datingmentioning

confidence: 99%

Late-Paleozoic emplacement and Meso-Cenozoic reactivation of the southern Kazakhstan granitoid basement

et al. 2015

View full text Add to dashboard Cite

International audienceThe Ili-Balkhash Basin in southeastern Kazakhstan is located at the junction of the actively deforming mountain ranges of western Junggar and the Tien Shan, and is therefore part of the southwestern Central Asian Orogenic Belt. The basement of the Ili-Balkhash area consists of an assemblage of mainly Precambrian microcontinental fragments, magmatic arcs and accretionary complexes. Eight magmatic basement samples (granitoids and tuffs) from the Ili-Balkhash area were dated with zircon U-Pb LA-ICP-MS and yield Carboniferous to late Permian (~ 350-260 Ma) crystallization ages. These ages are interpreted as reflecting the transition from subduction to (post-) collisional magmatism, related to the closure of the Junggar-Balkhash Ocean during the Carboniferous – early Permian and hence, to the final late Paleozoic accretion history of the ancestral Central Asian Orogenic Belt. Apatite fission track (AFT) dating of 14 basement samples (gneiss, granitoids and volcanic tuffs) mainly provides Cretaceous cooling ages. Thermal history modeling based on the AFT data reveals that several intracontinental tectonic reactivation episodes affected the studied basement during the late Mesozoic and Cenozoic. Late Mesozoic reactivation and associated basement exhumation is interpreted as distant effects of the Cimmerian collisions at the southern Eurasian margin and possibly of the Mongol-Okhotsk Orogeny in SE Siberia during the Jurassic – Cretaceous. Following tectonic stability during the Palaeogene, inherited basement structures were reactivated during the Neogene (constrained by Miocene AFT ages of ~ 17–10 Ma). This late Cenozoic reactivation is interpreted as the far-field response of the India-Eurasia collision and reflects the onset of modern mountain building and denudation in southeast Kazakhstan, which seems to be at least partially controlled by the inherited basement architecture

show abstract

“…Samples were irradiated in the Lazy Susan (Cd ratio 6.5 for Au and 48 for Co) facility of the Triga Mark II reactor of LENA, University of Pavia (Italy). The neutron fluence was determined using the NRM IRMM-540 standard glass (De Corte et al, 1998). Error of age is propagation of errors of ρ S and ρ I , of error of (determined by the measurement of the track density produced on the surface of a muscovite external detector attached to the standard glass during irradiation), and of the additional error introduced by the point counting technique).…”

Section: Relative Age Method: Rock Varnishmentioning

confidence: 99%

Fission‐track dating of a tephra layer related to Poti‐Malal and Seguro drifts in the Río Grande basin, Mendoza, Argentina

Espizua

Bigazzi

Iunes

et al. 2002

J Quaternary Science

View full text Add to dashboard Cite

Two old drift units called Poti-Malal and Seguro have been differentiated in the Río Grande basin based on relative-age criteria, stratigraphical relationships, morphology and fission-track dating. A tephra dated at 0.226 ± 0.025 Ma was deposited on the Poti-Malal drift and underlies the Seguro outwash, which is inferred to equate with marine oxygen isotope stage 6. The stratigraphical position and age suggest that the tephra post-dates the Poti-Malal glaciation and that it is older than the Seguro drift. The Poti-Malal glaciation must be at least as old as Early-Middle Pleistocene, and the Seguro glaciation is assigned to the penultimate glaciation. The tephra unit may have been deposited during marine oxygen isotope stage 7.

show abstract

A New U Doped Glass Certified By the European Commission for the Calibration of Fission-Track Dating

Cited by 44 publications

References 13 publications

Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China

Uprising period and elevation of the Wenyu granitic pluton in the Xiaoqinling District, Central China

Late-Paleozoic emplacement and Meso-Cenozoic reactivation of the southern Kazakhstan granitoid basement

Fission‐track dating of a tephra layer related to Poti‐Malal and Seguro drifts in the Río Grande basin, Mendoza, Argentina

Contact Info

Product

Resources

About