کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6445065 | 1640523 | 2013 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The lateral boundary of a metamorphic core complex: The Moutsounas shear zone on Naxos, Cyclades, Greece
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The lateral boundary of a metamorphic core complex: The Moutsounas shear zone on Naxos, Cyclades, Greece The lateral boundary of a metamorphic core complex: The Moutsounas shear zone on Naxos, Cyclades, Greece](/preview/png/6445065.png)
چکیده انگلیسی
We describe the structure, microstructures, texture and paleopiezometry of quartz-rich phyllites and marbles along N-trending Moutsounas shear zone at the eastern margin of the Naxos metamorphic core complex (MCC). Fabrics consistently indicate a top-to-the-NNE non-coaxial shear and formed during the main stage of updoming and exhumation between ca. 14 and 11 Ma of the Naxos MCC. The main stage of exhumation postdates the deposition of overlying Miocene sedimentary successions and predates the overlying Upper Miocene/Pliocene conglomerates. Detailed microstructural and textural analysis reveals that the movement along the Moutsounas shear zone is associated with a retrograde greenschist to subgreenschist facies overprint of the early higher-temperature rocks. Paleopiezometry on recrystallized quartz and calcite yields differential stresses of 20-77 MPa and a strain rate of 10â15-10â13 sâ1 at 350 °C for quartz and ca. 300 °C for calcite. Chlorite geothermometry of the shear zone yields two temperature regimes, 300-360 °C, and 200-250 °C. The lower temperature group is interpreted to result from late-stage hydrothermal overprint.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Structural Geology - Volume 54, September 2013, Pages 103-128
Journal: Journal of Structural Geology - Volume 54, September 2013, Pages 103-128
نویسندگان
Shuyun Cao, Franz Neubauer, Manfred Bernroider, Junlai Liu,