Forward and Inverse Modeling of Low-Temperature Thermochronometry Data

Ketcham, Richard A.

doi:10.2138/rmg.2005.58.11

Cited by 1,084 publications

(1,188 citation statements)

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“…Time-temperature histories were calculated by the inverse modeling approach using the version 1.6.7 (2009) of HeFTy (Ketcham, 2005) with a multi-compositional annealing model (Ketcham et al, 2007b) and the Dpar value as kinetic parameter. Models were run using c-axis projected lengths (Ketcham et al, 2007a), and initial track lengths were calculated according to the mean Dpar value of each sample using the formula of Carlson et al (1999).…”

Section: Ft Datamentioning

confidence: 99%

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Diverse exhumation of the Mesozoic tectonic belt within the Yangtze Plate, China, determined by apatite fission-track thermochronology

Shan

2011

Geosci J

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New and mostly published apatite fission-track (AFT) data are compiled to reveal the exhumation of the Mesozoic tectonic belt (MTB) within the Yangtze Plate, China. New AFT ages ranging from 51 ± 3 to 108 ± 5 Ma with mean measured track lengths between 11.8 ± 1.6 and 12.8 ± 2.0 µm, are obtained for the bedrock samples collected along a southeast to northwest transect across the MTB, including the exceptional Huangling Dome in the northern Yangtze Plate. The diverse, involving the first rapid, following by a slow, and the final accelerating, cooling and inferred exhumation from the Late Mesozoic to the Cenozoic have been identified in the study region based on the AFT data and modeling. The onset of exhumation is earlier in the Huangling Dome than in the southeastern and northwestern MTB, and in the southeastern MTB than in the northwestern MTB. Similarly, the final stage of accelerating exhumation seemed to start earlier in the Huangling Dome than in the southeastern and northwestern MTB, but in the northwestern MTB than in the southeastern MTB. The diverse exhumation of the MTB should have been attributed to the far-field effect of the Pacific plate subduction in the Cretaceous to the east, and to the eastward and southeastward tectonic escape from the Tibetan plateau imposed by the India-Eurasia collision since ~55 Ma to the west.

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Section: Ft Datamentioning

confidence: 99%

“…Thermal modeling of AFT length and age data modeled time-temperature paths for four apatite samples, computed with the version 1.6.7 (2009) of HeFTy program by Ketcham (2005). Temperature ranges between 110 and 60°C delineate apatite partial annealing zone, defined as temperature interval in which majority of track length shortening take place.…”

Section: Figmentioning

confidence: 99%

Diverse exhumation of the Mesozoic tectonic belt within the Yangtze Plate, China, determined by apatite fission-track thermochronology

Shan

2011

Geosci J

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“…Following thermal modeling of our data using the HeFTy [Ketcham, 2005;Ketcham et al, 2009] and QTQt software programs [Gallagher, 2009;Gallagher, 2012], we use the cooling histories to help elucidate the Cenozoic tectono-thermal evolution of the Kenya Rift shoulders and its implications for the overall structural evolution of the EARS.…”

Section: Introductionmentioning

confidence: 99%

Cenozoic extension in the Kenya Rift from low‐temperature thermochronology: Links to diachronous spatiotemporal evolution of rifting in East Africa

et al. 2015

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Key points: Data and modeling show Paleogene and middle Miocene cooling episodes  Cooling episodes separated by stable conditions, slow exhumation or subsidence  Extension pattern is compatible with random rift initiation above a plume This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/2015TC003949 ©2015 American Geophysical Union. All rights reserved. AbstractThe cooling history of rift shoulders and the subsidence history of rift basins are cornerstones for reconstructing the morphotectonic evolution of extensional geodynamic provinces, assessing their role in paleoenvironmental changes, and evaluating the resource potential of their basin fills. Our apatite fission-track and zircon (U-Th)/He data from the Samburu Hills and the Elgeyo Escarpment in the northern and central sectors of the Kenya Rift indicate a broadly consistent thermal evolution of both regions. Results of thermal modeling support a three-phased thermal history since the early Paleocene. The first phase (~65-50 Ma) was characterized by rapid cooling of the rift shoulders and may be coeval with faulting and sedimentation in the Anza Rift basin, now located in the subsurface of the Turkana depression and areas to the east in northern Kenya. In the second phase, very slow cooling or slight reheating occurred between ~45 and 15 Ma as a result of either stable surface conditions, very slow exhumation, or subsidence. The third phase comprised renewed rapid cooling starting at ~15 Ma. This final cooling represents the most recent stage of rifting, which followed widespread flood-phonolite emplacement and has shaped the present-day landscape through rift shoulder uplift, faulting, basin filling, protracted volcanism, and erosion. When compared with thermochronologic and geologic data from other sectors of the East African Rift System, extension appears to be diachronous, spatially disparate, and partly overlapping, likely driven by interactions between mantle-driven processes and crustal heterogeneities, rather than the previously suggested north-south migrating influence of a mantle plume.

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“…Track lengths were measured on horizontal confined tracks in c-axis parallel surfaces of apatites and were normalized for crystallographic angle using a c-axis projection Ketcham et al 2007). Thermal histories of the samples were modelled using the HeFTy ® programme (Ketcham 2005) and multi-kinetic annealing model of Ketcham et al (2007). D par values of apatites were included in the modelling as indicator for the chemical composition of the single grain ages.…”

Section: Fission Track Analysismentioning

confidence: 99%

“…Genetically, the mineralization is confined to pre-existing subvertical E-W trending cleavage and is related to intrusion of the subsurface Upper Cretaceous Rochovce granite occurring in the close proximity to the Lubeník thrust zone. It is dated by zircon U-Pb isochrones revealing ages from ~ 76 to 82 Ma (Hraško et al 1999;Poller et al 2001;Kohút et al 2013) and post-dates the (Ketcham 2005). Results are displayed in time-temperature diagrams (left diagrams).…”

Section: Cretaceous To Neogene Exhumation/denudationmentioning

confidence: 99%

Geological evolution of the southwestern part of the Veporic Unit (Western Carpathians): based on fission track and morphotectonic data

Vojtko

Králiková

Andriessen³

et al. 2017

Geologica Carpathica

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Forward and Inverse Modeling of Low-Temperature Thermochronometry Data

Cited by 1,084 publications

References 65 publications

Diverse exhumation of the Mesozoic tectonic belt within the Yangtze Plate, China, determined by apatite fission-track thermochronology

Diverse exhumation of the Mesozoic tectonic belt within the Yangtze Plate, China, determined by apatite fission-track thermochronology

Cenozoic extension in the Kenya Rift from low‐temperature thermochronology: Links to diachronous spatiotemporal evolution of rifting in East Africa

Geological evolution of the southwestern part of the Veporic Unit (Western Carpathians): based on fission track and morphotectonic data

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