Extraction of soils above concealed lithium deposits for rare metal exploration in Jiajika area: A pilot study

Xu, Zhiqiang; Liang, Bin; Geng, Yun; Liu, Ting; Wang, Qiubo

doi:10.1016/j.apgeochem.2019.05.018

Cited by 11 publications

(3 citation statements)

References 17 publications

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“…Since the late Mesozoic, the orogenic belt has undergone multilevel napped-slip, accompanied by partial crustal melting; the flysch in the Triassic Xikang Group has undergone nonaxial bidirectional compression and contraction in the north-south and east-west directions and contains many synorogenic granites and postorogenic granites from 228 to 195 Ma [14]. The granite magmatic diapir or disassembled dome was formed in the cross-superposition area of the dorsal structure [17,18]. These magmatic diapiric domes are mainly composed of core continental crust remelting S-type granitic claves or hidden granite bases, peripheral granite-pegmatite and Barro-type and Bakken-type metamorphic rocks.…”

Section: Regional Geological Characteristicsmentioning

confidence: 99%

“…These deposits together constitute the largest granite pegmatite type rare metal ore field in China [20][21][22][23][24][25]. [18]).…”

Section: Regional Geological Characteristicsmentioning

confidence: 99%

“…The highest values of Li and F are 443 × 10 −6 and 2900 × 10 −6 , respectively, indicating that the granite is a Li-F granite that is rich in rare metals and has good metallogenic conditions. Pegmatite dikes developed in groups in the top of the [18]).…”

Section: Geological Characteristics Of the Jiajika Depositmentioning

confidence: 99%

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Geochemical Characteristics and Metallogenic Significance of the X03 Vein Tourmaline in the Jiajika Rare Metal Deposit, West Sichuan

et al. 2023

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The Jiajika rare metal deposit contains the largest area of granitic pegmatite-type rare metal deposits in China. The X03 vein is an immense rare metal deposit dominated by lithium, which was found in the deposit in recent years. The contact metamorphic belt of tourmalinization and petrochemistry is widely developed in its wall rocks, and the altered rocks formed contain Li and other rare metal mineralization. In this paper, the tourmaline found in the different rocks of the Jiajika X03 vein is divided into four types: two-mica quartz schist (Tur-Ⅰ), tourmaline hornfels (Tur-Ⅱ), tourmaline-bearing granite pegmatite (Tur-Ⅲ) and spodumene-bearing granite pegmatite (Tur-Ⅳ); their in situ major element, trace element and boron isotope data are systematically studied. The results show that all tourmalines in the Jiajika X03 vein deposit belong to the alkali group, and are schorl–Oxy/Fluor–schorl, dravite–Hydroxy-dravite and foitite–Oxy foitite solid solutions, among which Tur-Ⅰ are dravite, Tur-Ⅱ are foitite of hydrothermal origin and Tur-Ⅲ and Tur-Ⅳ are schorl of magmatic origin. The boron isotope values show that the boron involved the formation process of tourmaline mainly originates from the Majingzi S-type granite, and the boron isotope variations in tourmaline are controlled by melt fluid and Rayleigh fractionation. Moreover, there is a clear correlation between the B isotope value of tourmaline and the Li, Mn, Zn, Mg, and V contents, showing that these contents in tourmaline are good indicators of the mineralization type of pegmatite.

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Section: Regional Geological Characteristicsmentioning

confidence: 99%

“…These deposits together constitute the largest granite pegmatite type rare metal ore field in China [20][21][22][23][24][25]. [18]).…”

Section: Regional Geological Characteristicsmentioning

confidence: 99%