Origin of the early Permian Wajilitag igneous complex and associated Fe–Ti oxide mineralization in the Tarim large igneous province, NW China

Cao, Jian; Wang, Christina Yan; Xing, Chang-Ming; Xu, Yi–Gang

doi:10.1016/j.jseaes.2013.09.014

Cited by 38 publications

(11 citation statements)

References 67 publications

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“…The layered intrusion cuts Silurian and Devonian strata and hosts economic Fe-Ti oxide mineralization (C.L. Cao et al 2013), consistent with strong aeromagnetic anomalies in the Piqiang, Bachu and Aksu regions (Rui et al 2002). The Wajilitag layered intrusion and the Xiaohaizi syenite intrusion have been interpreted as constituents of a larger layered intrusion (C.L.…”

Section: Sample Locationsmentioning

confidence: 66%

“…The Wajilitag layered intrusion and the Xiaohaizi syenite intrusion have been interpreted as constituents of a larger layered intrusion (C.L. Cao et al 2013), but this interpretation needs to be confirmed by seismic data (Zhou et al 2009). The outcrop of Wajilitag layered intrusion is 5 km long, 1.5-3 km wide and 100-300 m thick (Gao 2007), with contact zones dipping 20-40° toward the interior of the complex (C.L.…”

Section: Sample Locationsmentioning

confidence: 99%

“…4; Li et al 2001;C.L. Zhang et al 2008;Cao et al 2013). The olivine clinopyroxenite sample (W08) selected for SIMS dating was collected from the middle part of the layered intrusion (GPS coordinates 39°31'57"N, 78°56'03"E, Fig.…”

Section: Sample Locationsmentioning

confidence: 99%

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Re-evaluating the geochronology of the Permian Tarim magmatic province: implications for temporal evolution of magmatism

Shangguan

Ukstins

Tian

et al. 2015

JGS

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Abstract:The Permian Tarim magmatic province has 118 published ages, ranging from 358 to 205 Ma, but the timing of mafic magmatism is not well constrained. We report two new secondary ion mass spectrometry U-Pb zircon dates on the Halahatang trachydacite and Wajilitag olivine clinopyroxenite, which are 287.2 ± 2.0 Ma and 283.2 ± 2.0 Ma, respectively. The trachydacite overlies the uppermost basalt and constrains the latest eruption age of basalt in northern Tarim. The latter is the first high-resolution date for the Wajilitag mafic layered intrusion. By screening all published ages, we identified 22 robust ages, ranging from 290.9 ± 4.1 to 261.7 ± 1.8 Ma. The robust ages together with our new data reveal a protracted period of mafic magmatism at c. 283 and c. 267 Ma. Silicic magmatism occurred from 291 to 272 Ma. Although the current known volume of Tarim basalt is too small to qualify as a large igneous province, the eroded and intrusive components, as well as pyroclastic deposits and silicic lavas, may increase the estimated volume. Further work is required to refine the duration of magmatism and the volume estimate of the province.Supplementary material: A list of all the published dates, raw data of published 40 Ar-39 Ar dates, raw data of published U-Pb dates, published geochemistry data used for calculation and complete details of the data evaluation are available at

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Section: Sample Locationsmentioning

confidence: 66%

Section: Sample Locationsmentioning

confidence: 99%

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Re-evaluating the geochronology of the Permian Tarim magmatic province: implications for temporal evolution of magmatism

Shangguan

Ukstins

Tian

et al. 2015

JGS

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“…In addition to extrusive rocks, the Tarim LIP also comprises a great diversity of intrusive rocks, which mainly occur in Bachu, Wajilitag and Piqiang in the western part of the Tarim Basin (e.g., Jiang et al, 2004a,b,c;Yang et al, 2006a,b;Zhang et al, 2008aZhang et al, , 2010bZhang et al, , 2013Li et al, 2011Li et al, , 2012aCao et al, 2013). These intrusions cut Silurian and Devonian strata and host economic Fe-Ti oxide mineralization Zhang et al, 2008a), consistent with strong aeromagnetic anomalies in the Piqiang, Bachu and Akesu regions (Rui et al, 2002).…”

Section: Mafic-ultramafic Intrusionsmentioning

confidence: 99%

The Early Permian Tarim Large Igneous Province: Main characteristics and a plume incubation model

Wei

Luo

et al. 2014

Lithos

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160

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“…Sr‐Nd isotopic data sources: the Paleozoic granites of >320 Ma in Southwest Tianshan [ Gao et al ., ; Gou et al ., ; Long et al ., , and reference therein] and the Haladala gabbros [ Long et al ., , this study]. Sr‐Nd‐Pb‐Hf isotopic data of Tarim mafic rock and Sr‐Nd isotopic data of Carboniferous volcanic and sedimentary sequence (Dahalajunshan Formation) were from literatures [ Cao et al ., ; Ge et al ., ; Jiang et al ., , ; Li et al ., , ; Sun et al ., , ; Tian et al ., ; Wei and Xu , ; Wei et al ., ; Yu et al ., , ; Zhang et al ., , ; Zhou et al ., ; Zhu et al ., ]. The initial Sr‐Nd‐Hf‐Pb isotopes were all calculated at 300 Ma.…”

Section: Analytical Resultsmentioning

confidence: 99%

Plume‐orogenic lithosphere interaction recorded in the Haladala layered intrusion in the Southwest Tianshan Orogen, NW China

Huang

et al. 2016

JGR Solid Earth

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The plume‐orogenic lithosphere interaction may be common and important for the generation of large igneous provinces. The information regarding such a process is recorded by the Haladala gabbroic intrusion (~300 Ma), the largest layered ultramafic‐mafic intrusion hosting V‐Ti magnetite deposits in the Southwest Tianshan Orogen, NW China. The Haladala gabbros exhibit unfractionated chondrite‐normalized rare earth element patterns with negative Nb and Ta anomalies and positive Pb anomaly on the primitive mantle‐normalized multielement variation diagram. They are characterized by low initial Sr isotopes, slightly decoupled but high positive bulk rock εNd(t) and εHf(t), and high 207Pb/204Pb and 208Pb/204Pb relative to 206Pb/204Pb, delineating a DUPAL signature in the sources. The Haladala gabbros cannot be arc or postcollisional magmatism, given the lack of hydrous minerals and low K contents, respectively. This is further supported by the relatively low oxygen fugacity required for the gradual enrichment of V‐Ti magnetite during the magma fractionation and by an overall anhydrous mantle source suggested by troctolite mineral assemblage (olivine + plagioclase). The emplacement age of the Haladala gabbros is identical to that of the Wajilitag kimberlites in the Tarim's interior, which have been interpreted as the first magmatic expression of the Tarim mantle plume. We thus propose that the Haladala gabbroic intrusion was generated in a hybrid geodynamic setting in which the Southwest Tianshan Orogen was impacted by an upwelling mantle plume. In this sense, the Haladala layered gabbroic intrusion records the early phase of magmatism of the Tarim plume, which was preferentially emplaced in a lithospheric weak zone.

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Origin of the early Permian Wajilitag igneous complex and associated Fe–Ti oxide mineralization in the Tarim large igneous province, NW China

Cited by 38 publications

References 67 publications

Re-evaluating the geochronology of the Permian Tarim magmatic province: implications for temporal evolution of magmatism

Re-evaluating the geochronology of the Permian Tarim magmatic province: implications for temporal evolution of magmatism

The Early Permian Tarim Large Igneous Province: Main characteristics and a plume incubation model

Plume‐orogenic lithosphere interaction recorded in the Haladala layered intrusion in the Southwest Tianshan Orogen, NW China

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