Confined track length measurement in zircon from the deep drilling “MITI-Nishikubiki and Mishima”: Constraints upon the partial annealing zone

1998 ◽  
Vol 43 (S1) ◽  
pp. 90-90
Author(s):  
S. Mori ◽  
N. Hasebe ◽  
T. Tagami ◽  
R. Matsui
Keyword(s):  
Length Measurement ◽  
Track Length ◽  
Deep Drilling ◽  
Annealing Zone ◽  
Partial Annealing

Positioning the titanite fission-track partial annealing zone

1998 ◽  
Vol 149 (1-2) ◽  
pp. 117-125 ◽  
Author(s):  
D.A. Coyle ◽  
G.A. Wagner
Keyword(s):  
Fission Track ◽  
Annealing Zone ◽  
Partial Annealing

scholarly journals Evidence for post-early Eocene tectonic activity in southeastern Ireland

2003 ◽  
Vol 140 (2) ◽  
pp. 101-118 ◽  
Author(s):  
M. J. M. CUNNINGHAM ◽  
A. L. DENSMORE ◽  
P. A. ALLEN ◽  
W. E. A. PHILLIPS ◽  
S. D. BENNETT ◽  
...  
Keyword(s):  
Fission Track ◽  
Tectonic Activity ◽  
Early Eocene ◽  
Apatite Fission Track ◽  
Annealing Zone ◽  
Domain Boundaries ◽  
Vertical Displacements ◽  
Spatial Domains ◽  
Thermal Histories ◽  
Partial Annealing

The role played by Cenozoic deformation in denudation and landscape development in Ireland has historically been difficult to assess because of the lack of widespread pre-glacial Cenozoic deposits onshore. Here we combine analysis of apatite fission-track data and geomorphic observations to place constraints on the timing, kinematics and magnitude of onshore deformation in southeastern Ireland. Relationships between apatite fission-track central age and elevation for samples from the Wicklow and Blackstairs Mountains and Tullow Lowland suggest that these rocks record an exhumed apatite partial annealing zone, which after cooling was dismembered by differential vertical displacements of up to several hundred metres. We use inverted models of sample thermal history to show that samples across the region experienced very similar thermal histories up to and including a cooling event in late Paleocene or early Eocene time. This effectively rules out strongly spatially heterogeneous denudation, and implies that differential rock uplift occurred in post-early Eocene time. The central age–elevation relationships define at least three spatial domains with internally consistent apatite fission-track data, separated by known faults or topographic escarpments. Geomorphic analysis of these structures shows that patterns of catchment incision and sinuosity, as well as the presence of antecedent drainage, are best explained by differential vertical displacements at or near the domain boundaries. The kinematics and magnitudes of these displacements are consistent with those implied by the apatite fission-track results, and are compatible with other examples of known Cenozoic deformation from Ireland and the adjacent continental margin.

Thermobarometric data from a fossil zircon partial annealing zone in high pressure–low temperature rocks of eastern and central Crete, Greece

2002 ◽  
Vol 349 (1-4) ◽  
pp. 309-326 ◽  
Author(s):  
Manfred R. Brix ◽  
Bernhard Stöckhert ◽  
Eberhard Seidel ◽  
Thomas Theye ◽  
Stuart N. Thomson ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Annealing Zone ◽  
Partial Annealing

scholarly journals Thermal history of the Podhale Basin in the internal Western Carpathians from the perspective of apatite fission track analyses

2013 ◽  
Vol 64 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Aneta Agnieszka Anczkiewicz ◽  
Jan Środoń ◽  
Massimiliano Zattin
Keyword(s):  
Thermal History ◽  
Fission Track ◽  
Vitrinite Reflectance ◽  
Apatite Fission Track ◽  
Thermal Event ◽  
Annealing Zone ◽  
Two Samples ◽  
History Of ◽  
Western Side ◽  
Partial Annealing

Abstract The thermal history of the Paleogene Podhale Basin was studied by the apatite fission track (AFT) method. Twenty four Eocene-Oligocene sandstone samples yielded apparent ages from 13.8 ± 1.6 to 6.1 ± 1.4 Ma that are significantly younger than their stratigraphic age and thus point to a post-depositional resetting. The thermal event responsible for the age resetting is interpreted as a combination of heating associated with mid-Miocene volcanism and variable thickness of Oligocene and potentially also Miocene sediments. Extending the mid-Miocene thermal event found in the Inner Carpathians into the Podhale Basin as a likely heat source suggests that the amount of denudation in the Podhale Basin determined only on the basis of heat related to the thickness of sedimentary sequence might have be significantly overestimated. Two samples from the western part of the basin that yielded 31.0 ± 4.3 and 26.9 ± 4.7 Ma are interpreted as having mixed ages resulting from partial resetting in temperature conditions within the AFT partial annealing zone. This observation agrees very well with reported vitrinite reflectance and illite-smectite thermometry, which indicate a systematic drop of the maximum paleotemperatures towards the western side of the basin.

Assessment of overetching factor for confined fission-track length measurement in zircon

1993 ◽  
Vol 104 (1-4) ◽  
pp. 251-259 ◽  
Author(s):  
Ryuji Yamada ◽  
Takahiro Tagami ◽  
Susumu Nishimura
Keyword(s):  
Fission Track ◽  
Length Measurement ◽  
Track Length
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