 | | Journal (article/letter/editorial) | | unmetamorphosed sedimentary rocks of central North Greenland U. H. JAKOBSEN Institute of General Geology, University...North Greenland. Two different barium minerals have been identified, the Ba-feldspar hyalophane, and an...the unmetamorphosed rock sequence of the Navarana Fjord area is considered to represent a member in a...minerals in the sedimentary rocks of the Navarana Fjord area is believed to reflect an addition of silica...hydrothermal solutions. KEYWORDS: Hydrated Ba-silicate, hyalophane, baryte, unmetamorphosed sedimentary rocks, chert |  | Chang, Chao, Hu, Wen-Xuan, Fu, Qi, Cao, Jian, Wang, Xiao-Lin, Wan, Ye, Yao, Su-Ping (2018) Characteristics and formation processes of (Ba, K, NH4)-feldspar and cymrite from a lower Cambrian black shale sequence in Anhui Province, South China. Mineralogical Magazine, 82 (1) 1-21 doi:10.1180/minmag.2017.081.017 | Journal (article/letter/editorial) | | baryte and vanadium deposits were identified as hyalophane, and are regarded as important evidence for the...feldspars in the vanadium deposits were identified as hyalophane by wholerock X-ray diffraction, it is noteworthy...closely distributed along the theoretical line of hyalophane, while those from Long et al. (1994), Orberger...present study are distributed sparsely in a single area away from the line. Cymrite Cymrite is observed...this study are distributed sparsely in a single area away from the line; (b) BaO and SiO2, the Ba-rich |
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