Panxi region (South-West China): Tectonics, magmatism and metallogenesis. A review

Published on Nov 1, 2013in Tectonophysics2.76
· DOI :10.1016/j.tecto.2013.09.008
Marian Munteanu9
Estimated H-index: 9
(University of the Witwatersrand),
Yong Yao2
Estimated H-index: 2
(Rhodes University)
+ 5 AuthorsMaolin Wen1
Estimated H-index: 1
View in Source
Abstract The Panxi region of SW China makes up most of the western margin of the Yangtze craton. Its structural pattern, defined by NS-trending deep faults, is superimposed on a zone of late Proterozoic crustal extension. The Panxi region seems to have evolved as a continental rift in the Permian, and was subsequently subjected to compression, caused mainly by the Himalayan collision. This induced the uplift of its axial and western parts, generating a horst-type structure within the former rift graben. At ca. 260 Ma, mantle plume-related magmatism in the Panxi region generated the Emeishan flood basalts together with ultramafic and silicic volcanic rocks and with numerous intrusive bodies (peridotites, pyroxenites, layered gabbros, syenites, granites). A geochemical distinction between high-Ti and low-Ti Emeishan basalts can be made, but just with the significance of compositional end-members since the published data define a continuous variation of the entire compositional range. Similar compositional variation occurs in the ultramafic lavas (picrites and komatiites) intercalated in the sequence of the Emeishan basalts, which are considered to be the products of undifferentiated primary magmas. Based on the geochemical data, the primary magmas could have been generated from distinct source materials (mantle plume, asthenosphere, lithospheric mantle), from compositionally heterogeneous mantle plume source or from a common source but with various degrees of mantle melting and crustal contamination. Considering the picritic composition of the primary magmas, a deep-seated differentiation of large volume of magma is needed to produce the extrusion of the relatively evolved Emeishan basalts. World class Fe–Ti–V oxide ore deposits are associated with the layered gabbros, while the ultramafic intrusions can host small Ni–Cu and PGE sulfide deposits. The intrusions containing Fe–Ti–V oxide deposits show remarkably continuous layering and probably derived from mafic magmas differentiated in relatively large chambers. The ultramafic intrusions hosting Ni–Cu(–PGE) sulfide ores most likely formed from sulfide saturated magma moving through conduits.
  • References (160)
  • Citations (16)
#1Yu-Wei She (CAS: Chinese Academy of Sciences)H-Index: 5
#2Song-Yue Yu (CAS: Chinese Academy of Sciences)H-Index: 10
Last.Yan Luan (CAS: Chinese Academy of Sciences)H-Index: 4
view all 6 authors...
20 CitationsSource
#1Song-Yue Yu (CAS: Chinese Academy of Sciences)H-Index: 10
#2Xie-Yan Song (CAS: Chinese Academy of Sciences)H-Index: 29
Last.Xiao-Biao Li (CAS: Chinese Academy of Sciences)H-Index: 2
view all 4 authors...
6 CitationsSource
#1Geoffrey H. Howarth (Rhodes University)H-Index: 14
#2Stephen A. Prevec (Rhodes University)H-Index: 12
17 CitationsSource
#1Mei-Fu Zhou (HKU: University of Hong Kong)H-Index: 71
#2Wei Terry Chen (HKU: University of Hong Kong)H-Index: 18
Last.Geoffrey H. Howarth (Rhodes University)H-Index: 14
view all 6 authors...
85 CitationsSource
#1Clément Ganino (University of Nice Sophia Antipolis)H-Index: 6
#2Nicholas T. Arndt (CNRS: Centre national de la recherche scientifique)H-Index: 67
Last.Charlotte Athurion (CNRS: Centre national de la recherche scientifique)H-Index: 1
view all 5 authors...
26 CitationsSource
#2Bent T. Hansen (GAU: University of Göttingen)H-Index: 19
Last.Tạ Trọng ThắngH-Index: 1
view all 6 authors...
41 CitationsSource
#1Arnaud Pecher (UJF: Joseph Fourier University)H-Index: 28
#2Nicholas T. Arndt (UJF: Joseph Fourier University)H-Index: 67
Last.Charlotte Athurion (UJF: Joseph Fourier University)H-Index: 1
view all 6 authors...
16 CitationsSource
#1Clément Ganino (University of Nice Sophia Antipolis)H-Index: 6
#2Chris Harris (UCT: University of Cape Town)H-Index: 43
Last.Geoffrey H. Howarth (Rhodes University)H-Index: 14
view all 5 authors...
29 CitationsSource
#1Kwan-Nang PangNicholas (NTU: National Taiwan University)H-Index: 15
#2Mei-Fu Zhou (HKU: University of Hong Kong)H-Index: 71
Last.Hao-Yang Lee (NTU: National Taiwan University)H-Index: 20
view all 6 authors...
15 CitationsSource
#1Huan Dong (CAS: Chinese Academy of Sciences)H-Index: 3
#2Chang-Ming Xing (CAS: Chinese Academy of Sciences)H-Index: 6
Last.Christina Wang (CAS: Chinese Academy of Sciences)H-Index: 79
view all 3 authors...
23 CitationsSource
Cited By16
#1Xiaoli Shen (SDUST: Shandong University of Science and Technology)H-Index: 4
#2Baolin Zhang (CAS: Chinese Academy of Sciences)H-Index: 8
Last.Yanping Su (CAS: Chinese Academy of Sciences)H-Index: 2
view all 4 authors...
#1Zezhong Zhang (Northwest University (United States))H-Index: 1
#2Jiangfeng Qin (Northwest University (United States))H-Index: 13
Last.Yu Zhu (Northwest University (United States))H-Index: 1
view all 7 authors...
#1Yu Wang (China University of Geosciences)H-Index: 8
#2Ingrid Ukstins Peate (UI: University of Iowa)H-Index: 10
Last.Ye Wang (China University of Geosciences)H-Index: 1
view all 7 authors...
1 CitationsSource
#1Shaoze Zhao (CDUT: Chengdu University of Technology)H-Index: 1
#2Yong Li (CDUT: Chengdu University of Technology)H-Index: 8
Last.Jian Chen (CDUT: Chengdu University of Technology)
view all 8 authors...
#1Kwan-Nang PangNicholas (AS: Academia Sinica)H-Index: 15
#2J. Gregory Shellnutt (NTNU: National Taiwan Normal University)H-Index: 18
3 CitationsSource
#1Huan Li (China University of Geosciences)H-Index: 13
#2Ladislav Palinkaš (University of Zagreb)H-Index: 12
Last.Xiao Shuang Xi (CSU: Central South University)H-Index: 1
view all 4 authors...
22 CitationsSource
#1Marian Munteanu (University of the Witwatersrand)H-Index: 9
#2Allan H. Wilson (University of the Witwatersrand)H-Index: 16
Last.Mihaela-Elena CioacăH-Index: 1
view all 9 authors...
3 CitationsSource
#1Min Zhu (ZJU: Zhejiang University)H-Index: 1
#2Hanlin Chen (ZJU: Zhejiang University)H-Index: 19
Last.Shufeng Yang (ZJU: Zhejiang University)H-Index: 15
view all 4 authors...
10 CitationsSource
#1Loraine Gourbet (University of Lyon)H-Index: 4
#2Philippe Hervé Leloup (University of Lyon)H-Index: 18
Last.Tianyi Shen (China University of Geosciences)H-Index: 5
view all 17 authors...
15 CitationsSource
#1Hong-Peng Fan (CAS: Chinese Academy of Sciences)H-Index: 5
#2Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
Last.Yi-Jin Yang (CAS: Chinese Academy of Sciences)H-Index: 2
view all 4 authors...
View next paperPetrologic and geochemical constraints on the petrogenesis of Permian-Triassic Emeishan flood basalts in southwestern China