scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Supplemental Material: Isotopic spatial-temporal evolution of magmatic rocks in the Gangdese belt: Implications for the origin of Miocene post-collisional giant porphyry deposits in southern Tibet

2021 ◽  
Author(s):  
Chen-Hao Luo ◽  
Rui Wang ◽  
et al.
Keyword(s):  
Spatial Distribution ◽  
Temporal Evolution ◽  
Magma Mixing ◽  
Mixing Models ◽  
Southern Tibet ◽  
Porphyry Deposits ◽  
Magmatic Rocks

Two supplemental pictures and five supplemental tables. The pictures exhibit the Nd-Hf isotopic spatial distribution of the Gangdese belt magmatic rocks, southern Tibet, by using the average isotopic values of per 0.5 longitude (Fig. S1) and two additional magma mixing models related to the Jurassic and Cretaceous Gangdese belt magmatic rocks, southern Tibet (Fig. S2). The talbes contain all the data used in this research and their references.

scholarly journals Petrogenesis and Geodynamic Implications of Miocene Felsic Magmatic Rocks in the Wuyu Basin, Southern Gangdese Belt, Qinghai-Tibet Plateau

Minerals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 655
Author(s):  
Hanzhi Chen ◽  
Mingcai Hou ◽  
Fuhao Xiong ◽  
Hongwei Tang ◽  
Gangqiang Shao
Keyword(s):  
Lower Crust ◽  
Volcanic Rocks ◽  
Tibet Plateau ◽  
Southern Tibet ◽  
Mixed Product ◽  
Good Opportunity ◽  
Magmatic Rocks ◽  
Adakitic Rocks ◽  
Felsic Volcanic ◽  
Qinghai Tibet Plateau

Miocene felsic magmatic rocks with high Sr/Y ratios are widely distributed throughout the Gangdese belt of southern Tibet. These provide a good opportunity to explore the magmatic process and deep dynamic mechanisms that occurred after collision between the Indo and the Asian plates. In this paper, felsic volcanic rocks from the Zongdangcun Formation in the Wuyu Basin in the central part of the southern Gangdese belt are used to disclose their origin. Zircon U-Pb geochronology analysis shows that the felsic magmatism occurred at ca. 10.3 ± 0.2 Ma, indicating that the Zongdangcun Formation formed during the Miocene. Most of these felsic magmatic rocks plot in the rhyolite area in the TAS diagram. The rhyolite specimens from the Zongdangcun Formation have the characteristics of high SiO2 (>64%), K2O, SiO2, and Sr contents, a low Y content and a high Sr/Y ratio, and the rocks are rich in LREE and depleted in HREE, showing geochemical affinity to adakitic rocks. The rocks have an enriched Sr-Nd isotopic composition (εNd(t) = −6.76 to −6.68, (87Sr/86Sr)i = 0.7082–0.7088), which is similar to the mixed product of the juvenile Lhasa lower continental crust and the ancient Indian crust. The Hf isotopes of zircon define a wide compositional range (εHf(t) = −4.19 to 6.72) with predominant enriched signatures. The Miocene-aged crustal thickness in southern Tibet, calculated on the basis of the Sr/Y and (La/Yb)N ratios was approximately 60–80 km, which is consistent with the thickening of the Qinghai-Tibet Plateau. The origin of Miocene felsic magmatic rocks with high Sr/Y ratios in the middle section of the Gangdese belt likely involved a partial melting of the thickened lower crust, essentially formed by the lower crust of the Lhasa block, with minor contribution from the ancient Indian crust. After comprehensively analyzing the post-collisional high Sr/Y magmatic rocks (33–8 Ma) collected from the southern margin of the Gangdese belt, we propose that the front edge tearing and segmented subduction of the Indian continental slab may be the major factor driving the east-west trending compositional changes of the Miocene adakitic rocks in southern Tibet.

Magma mixing origin for the Quxu intrusive complex in southern Tibet: insights into the early Eocene magmatism and geodynamics of the southern Lhasa subterrane

Lithos ◽  
2019 ◽  
Vol 328-329 ◽  
pp. 14-32 ◽  
Author(s):  
Rui-Qiang Wang ◽  
Jian-Sheng Qiu ◽  
Si-Bin Yu ◽  
Lei Lin ◽  
Hang Xu
Keyword(s):  
Magma Mixing ◽  
Early Eocene ◽  
Intrusive Complex ◽  
Southern Tibet
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