Geochemistry, zircon U-Pb age, and tectonic constraints on the Bazman granitoid complex, southeast Iran
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چکیده
منابع مشابه
U/Pb and Pb/Pb zircon ages from granitoid rocks of Wallagga area: constraints on magmatic and tectonic evolution of Precambrian rocks of western Ethiopia
The Precambrian rocks in western Ethiopia consist of highand low-grade terranes intruded by granitoids with a wide compositional spectrum. The formation ages of these granitoid rocks are, so far, poorly understood. Single-grain zircon Pb/Pb evaporation and conventional U/Pb dating conducted on four granitoids places time constraints on their emplacement and tectonothermal events. Three granitoi...
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bibi maryam granitoid body with about 5 km2 has intruded into ophiolite mélange complex in sistan suture zone, in east of iran. thermal effects of this body on the host rocks show that this activity occurred after emplacement of ophiolite mélange. this intrusive body with general northwest – southeast trend is mainly tonalite-quartz diorite but there is a minor unit as dykes of granodiorite in ...
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The Neoproterozoic Quruqtagh Group in the Tarim Block, NW China, contains multiple diamictites in the Bayisi, Altungol, Tereeken, and Hankalchough formations. These diamictites may represent three or possibly four discrete glaciations, although evidence for a glacial origin of the Bayisi and Altungol diamictite is ambiguous. To constrain their age and duration, we dated three volcanic beds (V1,...
متن کاملU–Pb zircon geochronology, petrochemical and Sr–Nd isotopic characteristic of Late Neoproterozoic granitoid of the Bornaward Complex (Bardaskan-NE Iran)
http://dx.doi.org/10.1016/j.jseaes.2015.05.019 1367-9120/ 2015 Elsevier Ltd. All rights reserved. ⇑ Corresponding author. Tel.: +98 5138218146, mobile: +98 9155011318; fax: +98 5138212402. E-mail addresses: [email protected] (R.M. Bagherzadeh), [email protected] (M.H. Karimpour), [email protected] (G.L. Farmer), [email protected] (C.R. Stern), [email protected] (J.F. Santos)...
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Both single and multigrain U-Pb zircon thermal ionization mass spectrometry (TIMS) as well as sensitive high resolution ion microprobe (SHRIMP ll) dating of two suites of Adirondack granites have yielded ages constraining the principal tectonomagmatic events of the Ottawan Orogeny to the interval ca 1090–1035 Ma. The earliest of these consists of mildly A-type hornblende granites of the Hawkeye...
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ژورنال
عنوان ژورنال: TURKISH JOURNAL OF EARTH SCIENCES
سال: 2016
ISSN: 1300-0985,1303-619X
DOI: 10.3906/yer-1509-3