FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4376126912> ?p ?o ?g. }

• W4376126912 endingPage "105703" @default.
• W4376126912 startingPage "105703" @default.
• W4376126912 abstract "Clay minerals are generally used as pivotal indicators to reveal diagenetic parameters such as temperature and pH in hydrothermal ore-forming systems. Within the Late Permian Nb-Zr-REY-Ga-mineralized horizons in eastern Yunnan, the elevated enrichment of critical metals has been considered to be closely associated with abundant clay minerals. In this paper, the identification, abundance, morphology, modes of occurrence, and chemical compositions of two phyllosilicate minerals, namely chamosite (chlorite group) and berthierine (serpentine-kaolinite group) were analyzed by XRD (X-ray diffraction) and SEM-EDS (scanning electron microscopy equipped with an energy dispersive X-ray spectrometer). The results show that chamosite mainly occurs as massive and book-like aggregates, while berthierine occurs in various forms, including coarse granular, spherulitic, sheaf-like, sharp-angular, and vermicular aggregates. The modes of occurrence and scatter plots of Mg/(Mg + Fe) vs. Al/(Al + Fe + Mg) of chamosite indicate a Fe-Mg-rich siliceous hydrothermal origin. In the Al/Si-Mg/Fe diagram, analysis points for berthierine are distributed in the partially overlapping fields of hydrothermal ore, laterite/bauxite, and marine, indicating that the formation of berthierine was influenced by various geological factors. Based upon its chemistry and modes of occurrence, berthierine mainly originated by direct precipitation from Fe-Mg-rich siliceous hydrothermal fluids, but in some cases, it was derived from the replacement of precursor minerals and the in-situ alteration of volcanic fragments. A scenario of the transformation mechanism of clay minerals in the Nb-Zr-REY-Ga-rich horizons is proposed. Airborne volcanic glasses and primary minerals were initial altered in-situ into vermicular kaolinite and angular berthierine in the early diagenetic stage. Subsequently, some vermicular kaolinite and the oolitic berthierine crystallized from solutions underwent gradual illitization, and some pre-existing minerals (e.g., albite, kaolinite, and illite) were altered into berthierine, while a proportion of chamosite transformed from berthierine through an interstratified berthierine/chamosite (B/C) in the middle to late diagenetic stages. Throughout all stages of diagenesis, the chamosite, berthierine, and their intermediate phases precipitated directly from Fe-Mg-rich siliceous hydrothermal fluids. Moreover, the diagenetic temperature revealed by chamosite is from ∼200 to ∼302℃, indicating that the Nb-Zr-REY-Ga mineralization and chamosite formation occurred under low-temperature thermal alteration conditions." @default.
• W4376126912 created "2023-05-12" @default.
• W4376126912 creator A5002556770 @default.
• W4376126912 creator A5003642180 @default.
• W4376126912 creator A5010913993 @default.
• W4376126912 creator A5010921521 @default.
• W4376126912 creator A5012857374 @default.
• W4376126912 creator A5031597643 @default.
• W4376126912 creator A5051368972 @default.
• W4376126912 creator A5062544134 @default.
• W4376126912 creator A5087458476 @default.
• W4376126912 date "2023-09-01" @default.
• W4376126912 modified "2023-10-17" @default.
• W4376126912 title "Origin of chamosite and berthierine: Implications for volcanic-ash-derived Nb-Zr-REY-Ga mineralization in the Lopingian sequences from eastern Yunnan, SW China" @default.
• W4376126912 cites W1162175410 @default.
• W4376126912 cites W1971137161 @default.
• W4376126912 cites W1975281496 @default.
• W4376126912 cites W1981316911 @default.
• W4376126912 cites W1983734980 @default.
• W4376126912 cites W1985530913 @default.
• W4376126912 cites W1986215216 @default.
• W4376126912 cites W1993489621 @default.
• W4376126912 cites W2005100095 @default.
• W4376126912 cites W2016260972 @default.
• W4376126912 cites W2017723471 @default.
• W4376126912 cites W2019737722 @default.
• W4376126912 cites W2021723242 @default.
• W4376126912 cites W2025067794 @default.
• W4376126912 cites W2028814276 @default.
• W4376126912 cites W2028965010 @default.
• W4376126912 cites W2036237907 @default.
• W4376126912 cites W2042379092 @default.
• W4376126912 cites W2043621358 @default.
• W4376126912 cites W2049900380 @default.
• W4376126912 cites W2051647119 @default.
• W4376126912 cites W2053618511 @default.
• W4376126912 cites W2057501684 @default.
• W4376126912 cites W2058253384 @default.
• W4376126912 cites W2069017455 @default.
• W4376126912 cites W2072306258 @default.
• W4376126912 cites W2078617700 @default.
• W4376126912 cites W2080920548 @default.
• W4376126912 cites W2087791495 @default.
• W4376126912 cites W2087796950 @default.
• W4376126912 cites W2095036557 @default.
• W4376126912 cites W2096891572 @default.
• W4376126912 cites W2099369028 @default.
• W4376126912 cites W2128737540 @default.
• W4376126912 cites W2144090985 @default.
• W4376126912 cites W2144345260 @default.
• W4376126912 cites W2157848272 @default.
• W4376126912 cites W2187815326 @default.
• W4376126912 cites W2322370948 @default.
• W4376126912 cites W2343150749 @default.
• W4376126912 cites W2388158256 @default.
• W4376126912 cites W2403801713 @default.
• W4376126912 cites W2430191241 @default.
• W4376126912 cites W2474802184 @default.
• W4376126912 cites W2496781418 @default.
• W4376126912 cites W2513862256 @default.
• W4376126912 cites W2573693133 @default.
• W4376126912 cites W2588570792 @default.
• W4376126912 cites W2622586196 @default.
• W4376126912 cites W2709073124 @default.
• W4376126912 cites W2765722401 @default.
• W4376126912 cites W2765826630 @default.
• W4376126912 cites W2770902407 @default.
• W4376126912 cites W2783193185 @default.
• W4376126912 cites W2887894317 @default.
• W4376126912 cites W2947883078 @default.
• W4376126912 cites W2968932469 @default.
• W4376126912 cites W2981219864 @default.
• W4376126912 cites W2981771288 @default.
• W4376126912 cites W3000183848 @default.
• W4376126912 cites W3002496778 @default.
• W4376126912 cites W3014726533 @default.
• W4376126912 cites W3024502134 @default.
• W4376126912 cites W3044743617 @default.
• W4376126912 cites W3091487848 @default.
• W4376126912 cites W3093242758 @default.
• W4376126912 cites W3116248768 @default.
• W4376126912 cites W3118819315 @default.
• W4376126912 cites W3131471253 @default.
• W4376126912 cites W3135583038 @default.
• W4376126912 cites W3183416264 @default.
• W4376126912 cites W3186416593 @default.
• W4376126912 cites W3202791466 @default.
• W4376126912 cites W3204236456 @default.
• W4376126912 cites W38039412 @default.
• W4376126912 cites W4200148364 @default.
• W4376126912 cites W4205781737 @default.
• W4376126912 cites W4220683153 @default.
• W4376126912 cites W4223909033 @default.
• W4376126912 cites W4283274505 @default.
• W4376126912 cites W4284897709 @default.
• W4376126912 cites W4291227800 @default.
• W4376126912 cites W4295920303 @default.
• W4376126912 cites W4306407221 @default.

• next