Experimental studies of annealing of etched fission tracks in fluorapatite

Crowley, Kevin D.; Cameron, Maryellen; Schaefer, Robert L.

doi:10.1016/0016-7037(91)90320-5

Cited by 244 publications

(193 citation statements)

References 22 publications

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“…Crowley et al (1991), in a similar quantitative analysis of their own annealing data for a near-end-member fluorapatite, arrived at the same conclusion. Consequently, R. Donelick and S. Willett (unpubl.…”

Section: Models Of Fission Track Annealing In Apatitementioning

confidence: 53%

“…Consequently, R. Donelick and S. Willett (unpubl. data, 1989) applied the Crowley et al (1991) model to the Tioga apatite annealing data of Donelick et al (1990), Donelick (1991), and R. Donelick (unpubl. data, 1989).…”

Section: Models Of Fission Track Annealing In Apatitementioning

confidence: 99%

“…Of particular interest to geologists are apatite fission tracks because their etchable length distributions, in combination with conventional fission track age determinations, are routinely used to study thermal histories of rocks below ~130°C (e.g., Gleadow et al, 1986). Fission tracks in apatite are unique among thermochronometric methods because (1) new fission track populations form continuously through time by the spontaneous fission of 238 U and (2) individual track populations are distinguishable from one another based upon their mean confined etchable lengths (e.g., Green et al, 1986;Donelick, 1991;Crowley et al, 1991). As a consequence of these characteristics, naturally occurring fission tracks in apatite record detailed time-temperature path information experienced by their host rock (Green et al, 1989;Donelick and Willett, 1989;Corrigan, 1991).…”

Section: Introductionmentioning

confidence: 99%

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Testing Models of Fission Track Annealing in Apatite in a Simple Thermal Setting: Site 800, Leg 129

Vrolijk¹,

Donelick²,

Queng³

et al. 1992

Proceedings of the Ocean Drilling Program

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Four models of fission track annealing in apatite are compared with measured fission track lengths in samples from Site 800 in the East Mariana Basin, Ocean Drilling Program Leg 129, given an independently determined temperature history. The temperature history of Site 800 was calculated using a one-dimensional, compactive, conductive heat flow model assuming two end-member thermal cases: one for cooling of Jurassic ocean crust that has experienced no subsequent heating, and one for cooling of Cretaceous ocean crust. Because the samples analyzed were only shallowly buried and because the tectonic history of the area since sample deposition is simple, resolution of the temperature history is high. The maximum temperature experienced by the sampled bed is between 16°-21°C and occurs at 96 Ma; temperatures since the Cretaceous have dropped in spite of continued pelagic sediment deposition because heat flow has continued to decay exponentially and bottom-water temperatures have dropped. Fission tracks observed within apatite grains from the sampled bed are 14.6 ±0.1 µm (lσ) long. Given the proposed temperature history of the samples, one unpublished and three published models of fission track annealing predict mean track lengths from 14.8 to 15.9 µm. These models require temperatures as much as 40°C higher than the calculated paleotemperature maximum of the sampled bed to produce the same degree of track annealing. Measured and predicted values are different because annealing models are based on extrapolation of high temperature laboratory data to geologic times. The model that makes the closest prediction is based on the greatest number of experiments performed at low temperature and on an apatite having composition closest to that of the core samples.

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Section: Models Of Fission Track Annealing In Apatitementioning

confidence: 53%

Section: Models Of Fission Track Annealing In Apatitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Testing Models of Fission Track Annealing in Apatite in a Simple Thermal Setting: Site 800, Leg 129

Vrolijk¹,

Donelick²,

Queng³

et al. 1992

Proceedings of the Ocean Drilling Program

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“…The modelling approach is based on the annealing data of Laslett et al (1987) for Durango apatite and uses the algorithm described by Willett (1992) and Issler (1996) modified to use the mathematical fit of Crowley et al (1991). In the case of either mixed provenance or differential annealing due to compositional differences, use of modelling programs based on a single apatite composition with allowance for only a single source area thermal history is inappropriate and would produce misleading output.…”

Section: Modelling Of Thermal Historiesmentioning

confidence: 99%

Differential exhumation in response to episodic thrusting along the eastern margin of the Tibetan Plateau

et al. 1997

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“…Several different quantitative descriptions of apatite annealing exist (Carlson 1990;Crowley et al 1991), although a majority of other fission track studies from the Australian Plate O'Sullivan et al 1998) have used the kinetic description of Laslett et al (1987), and therefore the same description has been used in this study in order to facilitate comparisons between the datasets from different regions.…”

Section: Discussionmentioning

confidence: 99%

Low-temperature (<110°C) thermal history of the Mt Isa and Murphy Inliers, northeast Australia: evidence from apatite fission track thermochronology *

Spikings

Foster

Kohn

2006

Australian Journal of Earth Sciences

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The paucity of Phanerozoic rock sequences in the Proterozoic Mt Isa and Murphy Inliers in northern Australia renders it difficult to determine their Phanerozoic tectonic histories. However, thermochronological methods provide a means to assess this problem. Apatite fission track ages vary from 390 to 218 Ma, and mean track lengths range between 11.1 and 13.6 mm. These results record a non-linear cooling history below about 110 + 108C. Forward modelling of the fission track data suggests that the first episode of relatively rapid cooling since the Early Carboniferous occurred between ca 350 and 250 Ma at rates of *0.98C/million years and was synchronous with intracontinental deformation associated with the Alice Springs Orogeny and tectonics at the contemporaneous eastern margin of Australia. This event resulted in 2 km of exhumation across both inliers. Cooling rates also increased after 100 Ma, although estimates of the amount of cooling and exhumation across trhe inliers obtained by forward modelling of the fission track data exceed those determined by constraints provided by the 40 Ar/ 39 Ar ages of weathering profiles. This observation adds to the growing amount of evidence that the fission track annealing model employed overestimates cooling rates at low temperatures (560 -708C). The spatial variation of apatite fission track data within the Mt Isa Inlier indicates the three major structural belts, the Western Fold Belt, Kalkadoon -Leichhardt Belt and the Eastern Fold Belt, which are separated by major north -south faults, experienced similar thermal histories on a regional scale. This suggests that the main faults bounding the belts have not experienced major reactivation in a vertical sense, as a single large-scale fault plane, since ca 350 Ma. However, adjacent smaller scale, faultbounded blocks within the structural belts demonstrate variable cooling histories, suggesting that reactivation of favourably oriented minor faults in the inlier, including segments of the major faults, has occurred over this time interval. Variations in apatite fission track data show that up to 1.5 km of vertical displacement occurred along parts of the Mt Isa Fault Zone and the Pilgrim Fault between 350 and 250 Ma.

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Experimental studies of annealing of etched fission tracks in fluorapatite

Cited by 244 publications

References 22 publications

Testing Models of Fission Track Annealing in Apatite in a Simple Thermal Setting: Site 800, Leg 129

Testing Models of Fission Track Annealing in Apatite in a Simple Thermal Setting: Site 800, Leg 129

Differential exhumation in response to episodic thrusting along the eastern margin of the Tibetan Plateau

Low-temperature (<110°C) thermal history of the Mt Isa and Murphy Inliers, northeast Australia: evidence from apatite fission track thermochronology *

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