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Yaogou Monzogranite

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Journal Article

Thermotectonic evolution of the Paleozoic granites along the Shangdan suture zone (central China): Crustal growth and differentiation by magma underplating in an orogenic belt Available to Purchase

Jiang-Feng Qin, Shao-Cong Lai, Xiao-Ping Long, Ze-Zhong Zhang, Yin-Juan Ju, Ren-Zhi Zhu, Xing-Ying Wang, Yong-Fei Li, Jiang-Bo Wang, Tong Li
Journal: GSA Bulletin
Published: 06 July 2020
GSA Bulletin (2021) 133 (3-4): 523–538.
DOI: https://doi.org/10.1130/B35466.1
...) conditions. Their variable zircon ε Hf( t ) values (−14.97 to +9.80) and the existence of zircon xenocrysts suggest that the primitive adakitic melts were assimilated by evolved crustal components. The Yaogou monzogranites (403 ± 4 Ma) have the highest K 2 O/Na 2 O (0.81–1.00) ratios and total rare earth...
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View PDF for article title, Thermotectonic evolution of the Paleozoic granites along the Shangdan suture zone (central China): Crustal growth and differentiation by magma underplating in an orogenic belt
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Laser ablation–multicollector–inductively coupled plasma–mass spectrometry (LA-MC-ICP-MS) U-Pb concordia diagrams for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]). MSWD—mean square of weighted deviates.

Laser ablation–multicollector–inductively coupled plasma–mass spectrometry ... Available to Purchase

Published: 06 July 2020
Figure 4. Laser ablation–multicollector–inductively coupled plasma–mass spectrometry (LA-MC-ICP-MS) U-Pb concordia diagrams for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]). MSWD—mean square of weighted deviates.
Image
(A–C) Chondrite-normalized rare earth element (REE) patterns and (D–F) primitive mantle (PM)–normalized trace-element spider diagrams for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]). Chondrite and primitive mantle values are from Sun and McDonough (1989). N-MORB—normal mid-ocean-ridge basalt.

(A–C) Chondrite-normalized rare earth element (REE) patterns and (D–F) prim... Available to Purchase

Published: 06 July 2020
Figure 6. (A–C) Chondrite-normalized rare earth element (REE) patterns and (D–F) primitive mantle (PM)–normalized trace-element spider diagrams for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]). Chondrite
Image
(A–C) Cathodoluminescence (CL) images for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]). Circles indicate the location of laser ablation–multicollector–inductively coupled plasma–mass spectrometry (LA-MC-ICP-MS) Hf analyses, where the numbers in circles refer to the εHf(t) values. All εHf(t) values of the granites were calculated according their crystallization age.

(A–C) Cathodoluminescence (CL) images for the Paleozoic granites from the D... Available to Purchase

Published: 06 July 2020
Figure 3. (A–C) Cathodoluminescence (CL) images for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]). Circles indicate the location of laser ablation–multicollector–inductively coupled plasma–mass spectrometry (LA
Image
(A) A/NK [Al2O3/(Na2O + K2O)] vs. A/CNK [molar ratio Al2O3/(CaO + Na2O + K2O)], (B) quartz–alkali feldspar–plagioclase (Q-A-P), (C) SiO2–FeO/(FeO + Mg), and (D) SiO2– (Na2O + K2O-CaO) (after Frost et al., 2001) diagrams for the Paleozoic granites from the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]).

(A) A/NK [Al 2 O 3 /(Na 2 O + K 2 O)] vs. A/CNK [molar ratio Al 2 O 3 /(CaO... Available to Purchase

Published: 06 July 2020
the Danfeng area (Tieyupu granodiorite [TYP], Liangchahe granodiorite [LXH], Yaogou monzogranite [YG]).
Journal Article

Late Jurassic to Early Cretaceous magmatism in the Xiong’ershan gold district, central China: implications for gold mineralization and geodynamics Available to Purchase

Zhenshan Pang, Fuping Gao, Yangsong Du, Yilun Du, Zhaojian Zong, Jinsong Xie, Fengpei Xin
Published: 09 October 2019
Geological Magazine (2020) 157 (3): 435–457.
DOI: https://doi.org/10.1017/S0016756819000888
... Ma) and late (138–113 Ma). Laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS) zircon U–Pb dating yields ages of 160.7 ± 0.6 Ma and 127.2 ± 1.0 Ma for the Wuzhangshan and Huashan monzogranites in the Xiong’ershan area, respectively, representing the two magmatic episodes...
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View PDF for article title, Late Jurassic to Early Cretaceous magmatism in the Xiong’ershan gold district, central China: implications for gold mineralization and geodynamics
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