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Petrography and zircon UPb isotopic study of the

Zircon U-Pb and Hf isotopic constraints on the genesis of

The Variscan Orogeny produced widespread granites along the European Variscan belt.In relation to crustal thickening,post-collisional multiple Sn-bearing highly fractionated S-type leucogranites were emplaced.The Logros Petrography and zircon UPb isotopic study of the#225;n granite represents one of those granitic bodies and is the focus of this study.The Logros Petrography and zircon UPb isotopic study of the#225;n granite is located in the Central Extremadura Batholith,within the Central Zircon U-Pb and Hf isotopic constraints on the genesis of The Logros Petrography and zircon UPb isotopic study of the#225;n granite represents one of those granitic bodies and is the focus of this study.The Logros Petrography and zircon UPb isotopic study of the#225;n granite is located in the Central Extremadura Batholith,within the Central Iberian Zone (CIZ) and was emplaced during post kinematic stages of the Variscan Orogeny at ca.308 Ma,as determined by combined U-Pb ID-TIMS and LA-ICPMS Zircon U-Pb and Hf isotopic constraints on the genesis of The Logros Petrography and zircon UPb isotopic study of the#225;n granite represents one of those granitic bodies and is the focus of this study.The Logros Petrography and zircon UPb isotopic study of the#225;n granite is located in the Central Extremadura Batholith,within the Central Iberian Zone (CIZ) and was emplaced during post kinematic stages of the Variscan Orogeny at ca.308 Ma,as determined by combined U-Pb ID-TIMS and LA-ICPMS

ZIRCON U-PB AND HF ISOTOPIC STUDY OF THE

New LA- ICPMS zircon UPb ages,Hf isotopic values,and whole-rock geochemical data have been presented to (1) constrain the age of the Kawabulake ophiolite,(2) understand the petrogenesis of the granodiorites and their tectonic setting,and (3) reveal their implications forU-Pb zircon geochronology,geochemistry and Nd isotopic Li,Zheng-Xiang and Kinny,Peter.2002.U-Pb zircon geochronology,geochemistry and Nd isotopic study of Neoproterozoic bimodal volcanic rocks in the Kangdian Rift of South China implications for the initial rifting of Rodinia.Precambrian Research.113 (1-2) pp.135-154.U-Pb and Rb-Sr isotopic study of granitic gneisses and U-Pb zircon isotopic data have been obtained from four red granitic gneisses at different sample locations and from two porphyritic rocks of rhyolitic and dac-itic composition in the metavolcanic suite.The zircon population was separated into fractions of

U-Pb and Rb-Sr isotopic study of granitic gneisses and

U-Pb zircon isotopic data have been obtained from four red granitic gneisses at different sample locations and from two porphyritic rocks of rhyolitic and dac-itic composition in the metavolcanic suite.The zircon population was separated into fractions ofU-Pb and Rb-Sr geochronology of Acadian plutonism incompletely magmatic zircon.(1984,1985) work.The chemical and petrographic data help Zircon stability explain the Sr isotopic data,account for inheritance in zircon,The presenation of inherited zircon depends on zirconium and identify the as to make the age concentration relative to the saturation level.The stability ofU-Pb age and Hf isotopic constraints of detrital zircons The Subhimalaya of NW India exposes a well developed marine to continental foreland sequence preserving sediments shed from the tectonically evolving Cenozoic Himalayan orogen.Detrital zircon U-Pb ages and their Hf isotopic compositions,of seven samples,were analyzed from the Subathu sub-basin foreland formations to constrain sediment provenance .

U-Pb Zircon and Sm-Nd isotopic study of the huangtuling

This result and the U-Pb data for the zircon rims suggest that a collisional event may have occurred along the northern margin of the Yangtze Craton at 2.0 Ga,inviting further study on whether the Yangtze Craton was involved in the assembly of the recently-proposed Paleo-Mesoproterozoic supercontinent Columbia.U-Pb Zircon and Sm-Nd isotopic study of the huangtuling This result and the U-Pb data for the zircon rims suggest that a collisional event may have occurred along the northern margin of the Yangtze Craton at 2.0 Ga,inviting further study on whether the Yangtze Craton was involved in the assembly of the recently-proposed Paleo-Mesoproterozoic supercontinent Columbia.U-Pb Zircon Age,Geochemical and Sr-Nd Isotopic and isotopic data) on granites and granodiorites are li- mited.Therefore,we provide systematic geochemical data and .LA-ICP-MS.zircon U-Pb and Sr-Nd data for the granodiorites to constrain age,source,fractionation and genetic model of the studied felsic rocks.2.Geological Setting and Petrography

U-Pb Zircon Age,Geochemical and Sr-Nd Isotopic

and isotopic data) on granites and granodiorites are li- mited.Therefore,we provide systematic geochemical data and .LA-ICP-MS.zircon U-Pb and Sr-Nd data for the granodiorites to constrain age,source,fractionation and genetic model of the studied felsic rocks.2.Geological Setting and PetrographySome results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextGeochemical,isotopic,and zircon (U-Pb,O,Hf isotopes Geochemical,isotopic,and zircon (U-Pb,O,Hf isotopes) evidence for the magmatic sources of the volcano-plutonic Ollo de Sapo Formation,Central Iberia P.MONTERO1 C.TALAVERA2 F.BEA1* 1Department of Mineralogy and Petrology,University of Granada Campus Fuentenueva,18002 Granada,Spain.F.Bea E-mail [email protected];Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextU-Pb,Single Zircon Pb-Evaporation,and Sm-Nd Isotopic A U-Pb conventional multigrain,single zircon stepwise Pb-evaporation and Sm-Nd geochronological study on meta-felsic rocks has shown that basement of at least lower Proterozoic age was strongly metamorphosed around 570-580 Ma.This tectometamorphic event nearly obliterated any pre-Pan-African zircon isotopic memory.

Some results are removed in response to a notice of local law requirement.For more information,please see here.SHRIMP U-Pb zircon geochronology and Nd-Sr isotopic study

(2013).SHRIMP U-Pb zircon geochronology and Nd-Sr isotopic study of the Mamianshan Group implications for the Neoproterozoic tectonic development of southeast China.International Geology Review Vol.55,No.6,pp.730-748.Petrography,geochemistry and U-Pb zircon age of the 6 This study represents a comprehensive petrographical and geochemical study of the 7 Matongo carbonatite (the petrological evolution of the complex is however beyond the scope 8 of the study),together with new LA-ICP-MS U-Th-Pb ages obtained on its zircon megacrysts.

Petrography and zircon UPb isotopic study of the

The Bayanwulashan Metamorphic Complex (BMC) exposes along the eastern margin of the Alxa Block,the westernmost part of the North China Craton (NCC).Petrography and zircon U-Pb isotopic study of the The Bayanwulashan Metamorphic Complex (BMC) exposes along the eastern margin of the Alxa Block,the westernmost part of the North China Craton (NCC).BMC is principally composed of metamorphic rocks with amphibole plagiogneiss,biotite plagioclase gneiss and granitic gneiss.Our research has been focused on the petrography and zircon U-Pb geochronology of the BMC to better understand the Petrography and detrital zircon study of late The North China Craton (NCC) has been flanked by the North Qilian and North Qinling arc-accretionary belts to the south and southwest since 400 Ma.The part of the NCC to the east of the Alax terrane (E-NCC) experienced a long sedimentary hiatus and tectonic quiescence between the Middle Ordovician and the late Carboniferous.The northern margin of the E-NCC was reactivated and uplifted

Petrogenesis of the Granites in the Yandangshan Area

New geochemical and geochronological data of two types of granites,which are located in Yandangshan area,southeastern Zhejiang Province,were presented to constrain their magma condition,origin and the genetic relationship between them.The SHRIMP zircon U-Pb dating of Dongshan and He-sheng granite in Yandangshan area shows that they were formed at 114 Petrography and zircon UPb isotopic study of the#177;1 and 103 Petrography and zircon UPb isotopic study of the#177;2 Ma,respectively.Petrogenesis of the Granites in the Yandangshan Area New geochemical and geochronological data of two types of granites,which are located in Yandangshan area,southeastern Zhejiang Province,were presented to constrain their magma condition,origin and the genetic relationship between them.The SHRIMP zircon U-Pb dating of Dongshan and He-sheng granite in Yandangshan area shows that they were formed at 114 Petrography and zircon UPb isotopic study of the#177;1 and 103 Petrography and zircon UPb isotopic study of the#177;2 Ma,respectively.Paleozoic granitic magmatism and tectonic evolution of the HighlightsShowing new data of zircon U-Pb dating,Hf isotope,and geochemistry of the granites in South Altun.Identified six episodes of granitic magma activities and petrogenesis in South Altun.Discussed the tectonic

Paleozoic granitic magmatism and tectonic evolution of the

HighlightsShowing new data of zircon U-Pb dating,Hf isotope,and geochemistry of the granites in South Altun.Identified six episodes of granitic magma activities and petrogenesis in South Altun.Discussed the tectonic Minerals Free Full-Text Origin of Northeast Fujian Aug 31,2020 Petrography and zircon UPb isotopic study of the#0183;Zircon LA-ICP-MS U-Pb dating in this study was performed at the State Key Laboratory of Continental Dynamics,Northwest University.Based on petrographic observation,the zircon grains were separated using conventional gravity and magnetic separation methods and then handpicked under a binocular microscope.Minerals Free Full-Text Origin of Northeast Fujian Aug 31,2020 Petrography and zircon UPb isotopic study of the#0183;Cenozoic alkali basalts in Southeast (SE) China generally are genetically related to intracontinental rifting.Hence,they can be used to probe the nature of their underlying mantle sources and aid studies of the tectonic background in this region.This paper focuses on the Shanhoujian alkali basalts located in Bailing County,northeastern Fujian,SE China.

Isotopic systematics of zircon indicate an African

Mar 25,2020 Petrography and zircon UPb isotopic study of the#0183;Six analyses of the 91500 zircon standard analysed during this study indicated 176 Hf/ 177 Hf = 0.282320 Petrography and zircon UPb isotopic study of the#177; 0.000021 (2),which is well within the range of values reported by Griffin et al Geochemical,isotopic,and zircon (U-Pb,O,Hf isotopes Geochemical,isotopic,and zircon (U-Pb,O,Hf isotopes) evidence for the magmatic sources of the volcano-plutonic Ollo de Sapo Formation,Central Iberia P.MONTERO1 C.TALAVERA2 F.BEA1* 1Department of Mineralogy and Petrology,University of Granada Campus Fuentenueva,18002 Granada,Spain.F.Bea E-mail [email protected];Garnet U-Pb and O isotopic determinations reveal a shear Jul 17,2019 Petrography and zircon UPb isotopic study of the#0183;In this study,a skarn iron deposit from northwest (NW) China is shown to have U-Pb garnet and U-Pb zircon ages of 254.2 Petrography and zircon UPb isotopic study of the#177; 1.7 Ma and 255.5 Petrography and zircon UPb isotopic study of the#177;

Detrital Zircon U-Pb Age and Petrographic Composition

zircon [1,18,19] rather than the petrographic study.The purpose of this study is to document the stratigraphy,U-Pb zircon age and petrography from a complete foreland basin section (Eocene and younger Tansen Basin) in central Nepal and to examine potential source rocks (HH and TH,one field traverse) for detrital infill.Data analysis of the U-Pb geochronology and Lu-Hf system Petrography and zircon UPb isotopic study of the#0183;This data article provides zircon U-Pb and Lu-Hf isotopic information along with whole-rock Sm-Nd,Sr and Pb isotopic geochemistry from granitoids in Thailand.The U-Pb ages are described and the classification of crystallisation and inherited ages are explained.The petrography of the granitoid samples is detailed.Cited by 57Publish Year 2014Author Sujuan Wu,Jianmin Hu,Minghua Ren,Wangbin Gong,Yang Liu,Jiyuan YanPetrography and zircon UPb isotopic study of the Petrography and zircon UPb isotopic study of the#0183;The Yidun Arc belt,a Triassic volcanic arc,was the result of Late Triassic large-scale subduction orogenic process of Paleo-Tethys and exposed the voluminous intermediate-acid intrusions during Mesozoic.In this paper,we mainly present petrography and petrology,major and trace element,Sr-Nd-Pb-Hf isotopic compositions,and zircon U-Pb ages for the monzogranites from the Queer

A Geochemical and Isotopic Study of Plutonic and High

/.bodies in the study area,the Methuen qua~tz monzonite and '\.J Loon Lake in the Central Metasedimentary Belt have low initial strontium ratios (0'.703 to 0.704l and anomalously high oxygen isotopic compositions ( Petrography and zircon UPb isotopic study of thegt; 8h.l indicating that these units ~ were derived from .a source with' a low average Rb./Sr and/or a material.

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