U-Pb zircon and hf compositon of granitoid Chieng Khuong complex
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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...
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)...
متن کاملOxygen Isotopic Composition and U-Pb Discordance in Zircon
We have investigated U-Pb discordance and oxygen isotopic composition of zircon using high– spatial resolution !O measurement by ion microprobe. !O in both concordant and discordant zircon grains provides an indication of the relationship between fluid interaction and discordance. Our results suggest that three characteristics of zircon are interrelated: (1) U-Pb systematics and concomitant age...
متن کاملgeochemistry, petrology and zircon u-pb dating for bibi maryam granitoid, ne of nehbandan, east of iran
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 ...
متن کاملDating of Precambrian Metasedimentary Rocks and Timing of their Metamorphism in the Soursat Metamorphic Complex (NW IRAN): Using LA–ICP-MS, U–Pb Dating of Zircon and Monazite
Soursat Metamorphic Complex (SMC) in west of Takab city is one of the polyphase metamorphic terrenes in northern Sanandaj-Sirjan metamorphic belt of Iran. The SMC composed mainly of metasedimentary rocks associated with granitic intrusions. Based on metamorphic rocks, two metamorphic phases could be separate in the complex. M1 is representative of regional metamorphisms which varies from greens...
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ژورنال
عنوان ژورنال: Science and Technology Development Journal
سال: 2014
ISSN: 1859-0128,1859-0128
DOI: 10.32508/stdj.v17i2.1316