LA-ICP-MS U-Pb zircon geochronology and Hf isotope, geochemistry and kinetics of the Daxigou anorthosite from Kuruqtagh block, NW China

2014 ◽  
Vol 33 (3) ◽  
pp. 207-220 ◽  
Author(s):  
Qian Yuan ◽  
Xiaofeng Cao ◽  
Xinbiao Lü ◽  
Xiangdong Wang ◽  
Enlin Yang ◽  
...  
Keyword(s):  
Isotope Geochemistry ◽  
Hf Isotope ◽  
Zircon Geochronology ◽  
Nw China ◽  
Icp Ms ◽  
Kinetics Of

Small-volume baddeleyite (ZrO2) U–Pb geochronology and Lu–Hf isotope geochemistry by LA-ICP-MS. Techniques and applications

2014 ◽  
Vol 384 ◽  
pp. 149-167 ◽  
Author(s):  
Mauricio Ibanez-Mejia ◽  
George E. Gehrels ◽  
Joaquin Ruiz ◽  
Jeffrey D. Vervoort ◽  
Michael P. Eddy ◽  
...  
Keyword(s):  
Small Volume ◽  
Isotope Geochemistry ◽  
Hf Isotope ◽  
Icp Ms

scholarly journals Supplemental Material: The newly discovered ca. 1.35 Ga metamafic rocks in the Oulongbuluke Block, NW China, and its record for transition from the Columbia to Rodinia supercontinent

2022 ◽  
Author(s):  
Pei Lv ◽  
Yu Shengyao ◽  
et al.
Keyword(s):  
Trace Element ◽  
Hf Isotope ◽  
Nw China ◽  
Isotope Data ◽  
Icp Ms ◽  
Rodinia Supercontinent

Table S1: U-Th-Pb LA-ICP-MS data of zircons from metamafic rocks in the Oulongbuluke Block. Table S2: LA-MC-ICP-MS Lu-Hf isotope data of zircons from metamafic rocks in the Oulongbuluke Block. Table S3: Major and trace element compositions of metamafic rocks in the Oulongbuluke Block.

The U-Pb Zircon Geochronology (LA-ICP-MS) of Geological Processes in Granulites of Middle Bouh Area. Article 2. Rock association in the Chausove open pits

2020 ◽  
Vol 42 (4) ◽  
pp. 84-103
Author(s):  
L.M. STEPANYUK ◽  
L.V. SHUMLYANSKYY ◽  
S.A. WILDE ◽  
A.A. NEMCHIN ◽  
O.V. BILAN
Keyword(s):  
Isotope Composition ◽  
Hf Isotope ◽  
Open Pit ◽  
Zircon Geochronology ◽  
Geological Processes ◽  
Icp Ms ◽  
Last Stage ◽  
New Generation ◽  
Isotope Systematics ◽  
Rock Association

The LA-ICP-MS method was applied to investigate U-Pb and Lu-Hf isotope systematics of zircon crystals from charnockitoids that crop out in the open pits near Chausove village, Pervomaisk district. The association of enderbite gneisses, mafic and ultramafic (pyroxenite) granulites and vein bodies of pink biotite granites occur in the open pits. Enderbites are rather heterogeneous, and their composition varies from leucocratic quartzite-like rocks to enderbite-diorite. The Pervomaisk open pit is located within charnockite massif. Our data indicates that the association of enderbites and charnockites crystallised at 2850-2760 Ma from juvenile material (Hf isotope composition in zircons from enderbite-diorite is 176Hf/177Hf = 0.280915 ± 12, εHf2850 = +2; from leucocratic charnockite 176Hf/177Hf = 0.280875 ± 12, εHf2760 = –1; and from charnockite 176Hf/177Hf = 0.280875 ± 12, εHf2760 = –1). These rocks represented the newly formed Meso-Neoarchean crust, in contrast to the reworked older continental crust. This association has experienced a significant transformation in Paleoproterozoic. The last stage of transformation was accompanied by crystallisation of a new generation of zircon and formation of monazite at 2.04-2.06 Ga.

scholarly journals The U-Pb Zircon Geochronology (LA-ICP-MS) of Geological Processes in Granulites of Middle Bouh Area. Article 3. Rock association in the lower reaches of the Yatran river

2021 ◽  
Vol 43 (1) ◽  
pp. 34-50
Author(s):  
L.M. STEPANYUK ◽  
L.V. SHUMLYANSKYY ◽  
S.I. KURYLO ◽  
V.O. SYOMKA ◽  
S.M. BONDARENKO ◽  
...  
Keyword(s):  
Isotope Composition ◽  
Hf Isotope ◽  
Zircon Geochronology ◽  
Pb Isotope ◽  
Isotope Data ◽  
Geological Processes ◽  
Icp Ms ◽  
Isotope Systematics ◽  
Isotope Analyses ◽  
Rock Association

LA-ICP-MS method was applied to investigate U-Pb and Lu-Hf isotope systematics of zircon crystals from charnockitic gneiss and biotite-garnet-hypersthene enderbite that occur in the lower reaches of the Yatran river (Yatran block of the Bouh river area). According to the obtained isotope data, charnockitic gneiss hosts three zircon populations. The oldest one is represented by three crystals that have isotope age between 3125 and 3300 Ma, and εHf values between –2.3 and –7.5. The next population is well-defined, it has an age of 2038±25 Ma and large variations of Hf isotope composition: 176Hf/177Hf — from 0.28122 to 0.28261, εHf — from –9.3 до 4.6. However, the ages of most of the analyzed zircons spread along the concordia between 2300 and 2800 Ma. All zircons in this population have a similar Hf isotope composition 176Hf/177Hf = 0.28072 to 0.28092, which does not depend on the age. It is characteristic that the oldest (with preserved U-Pb isotope systematics) crystals have positive or slightly negative εHf values. Most of the U-Pb isotope analyses of zircons from enderbite fall on the discordia line that has an upper interception age of 2029 ± 18 Ma. A small number of discordant grains have 207Pb/206Pb ages up to 2500 Ma. Hafnium isotope composition in zircons from enderbite varies widely: 176Hf/177Hf = 0.28131 to 0.28151, and εHf from –6.2 to 1.8.

scholarly journals Supplemental Material: The newly discovered ca. 1.35 Ga metamafic rocks in the Oulongbuluke Block, NW China, and its record for transition from the Columbia to Rodinia supercontinent

2022 ◽  
Author(s):  
Pei Lv ◽  
Yu Shengyao ◽  
et al.
Keyword(s):  
Trace Element ◽  
Hf Isotope ◽  
Nw China ◽  
Isotope Data ◽  
Icp Ms ◽  
Rodinia Supercontinent

Table S1: U-Th-Pb LA-ICP-MS data of zircons from metamafic rocks in the Oulongbuluke Block. Table S2: LA-MC-ICP-MS Lu-Hf isotope data of zircons from metamafic rocks in the Oulongbuluke Block. Table S3: Major and trace element compositions of metamafic rocks in the Oulongbuluke Block.

LA–ICP–MS U–Pb zircon geochronology, geochemistry and kinetics of the Wenquan ore-bearing granites from West Qinling, China

2011 ◽  
Vol 43 (1) ◽  
pp. 120-131 ◽  
Author(s):  
Xiaofeng Cao ◽  
Xinbiao Lü ◽  
Shuzhen Yao ◽  
Wei Mei ◽  
Xiaoyan Zou ◽  
...  
Keyword(s):  
Zircon Geochronology ◽  
West Qinling ◽  
Icp Ms ◽  
Kinetics Of
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