TY - JOUR
T1 - Yo-yo tectonics of the Niǧde Massif during wrenching in central Anatolia
AU - Whitney, Donna L.
AU - Umhoefer, Paul J.
AU - Teyssier, Christian
AU - Fayon, Annia K.
PY - 2008
Y1 - 2008
N2 - Yo-yo tectonics occurs in wrench zones in response to switches between transpression and transtension or to changes in the geometries of faults during these modes of deformation, and involves multiple cycles of burial and exhumation. The Niǧde Massif, Turkey, is a spectacular example of a tectonic yo-yo: it experienced two complete cycles of burial and exhumation in a zone of oblique displacement. The two cycles, one regional and one more local in scale, together occurred over > 80 m.y., from Cretaceous burial to Miocene cooling and exhumation. Temperature-time paths calculated using apatite fission track age and length data, combined with published U/Pb, 40Ar/39Ar, and biostratigraphic ages and a new 40Ar/39Ar biotite age for ignimbrite overlying the massif, are the basis for inferring the duration, rates, and driving forces of yo-yo cycles. Exhumation may be more rapid than burial because burial occurs at tectonic rates, whereas the combined effects of buoyancy and coupling of surface processes (especially erosion) and tectonic denudation accelerate exhumation of buried continental material.
AB - Yo-yo tectonics occurs in wrench zones in response to switches between transpression and transtension or to changes in the geometries of faults during these modes of deformation, and involves multiple cycles of burial and exhumation. The Niǧde Massif, Turkey, is a spectacular example of a tectonic yo-yo: it experienced two complete cycles of burial and exhumation in a zone of oblique displacement. The two cycles, one regional and one more local in scale, together occurred over > 80 m.y., from Cretaceous burial to Miocene cooling and exhumation. Temperature-time paths calculated using apatite fission track age and length data, combined with published U/Pb, 40Ar/39Ar, and biostratigraphic ages and a new 40Ar/39Ar biotite age for ignimbrite overlying the massif, are the basis for inferring the duration, rates, and driving forces of yo-yo cycles. Exhumation may be more rapid than burial because burial occurs at tectonic rates, whereas the combined effects of buoyancy and coupling of surface processes (especially erosion) and tectonic denudation accelerate exhumation of buried continental material.
KW - Apatite fission track
KW - Exhumation
KW - Niǧde Massif
KW - Wrench zones
KW - Yo-yo tectonics
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M3 - Article
AN - SCOPUS:42049121956
SN - 1300-0985
VL - 17
SP - 209
EP - 217
JO - Turkish Journal of Earth Sciences
JF - Turkish Journal of Earth Sciences
IS - 2
ER -