... )–associated sulfate (MAS) in a diamictite in Kaiyang, Guizhou, South China. The core of our argument is based on the lowest-ever-published sulfate δ 18 O values found in the barite and MAS, reaching as low as –20.3‰ (Vienna standard mean ocean water, VSMOW). These data suggest that the water involved...

... detected both by GC-MS and laser Raman spectroscope ( Li et al. 2013 ) Kaiyang phosphorite 590 3–7 μm; the “petals” of apatite radial rods are much more straighter than that of the “flowers” in the above samples 50 ± 30 nm in diameter; regular shapes 50 ± 30 nm in diameter; regular shapes...

... coals. For example, Cambrian stone coals are extracted from ~10 meter-tall galleries in room and pillar mines in the Niutitang Formation ( Table 1 ) near Ganziping, south of Dayong, Hunan, and are burned as fuel for lime kilns. Because the Cambrian Period is generally believed to predate the era...

... ( Mao et al., 2002 ). The thicknesses of Ni-Mo ore beds or lenses are extremely variable, typically ranging from 1 to 30 cm, but pinching out sporadically at most locations. The giant Kaiyang phosphorite mine located only 65 km south of Zunyi exposes a continuous section of the lower Cambrian, but no Ni...

.... The mining depths in mines such as the Xinwen mine (Shandong Province) and the Kaiyang phosphate mine (Guizhou Province) in China have reached more than 1000 m underground, where the geostress ranges between 3.38 and 32.08 MPa ( Kang et al. 2010 ; Miao et al. 2012 ; Zheng et al. 2015 ). However, many...

... Heilongjiang Province in the NE to Yunnan Province in the SW ( Wang and Gao 2001 ). However, there are also some typical Se-rich areas, such as Enshi Prefecture in Hubei Province ( Zhu et al. 2008 ; Yuan et al. 2012 ), Ziyang County in Shaanxi Province ( Luo et al. 2004 ; Tian et al. 2016 ), Kaiyang...

... approximately the same Late known as Tiancshan, 20 km wosl of Zunyi, and lhrcc mining dislricls, Dayong, Ganziping, and San Sha, Okita, 1991), Mn beds (Fan et al., localed in /he loo/hills of /he Tianmcnshan, 5-15 km sou/h of Dayong, Hunan. Proterozoic (Sinian)-Cambrian 1992a), vanadian shales (Zhang...

..., with only the HST preserved. At Kaiyang (H in Fig. 1 ), about 50 km to the west of Weng'an in Guizhou Province, Sinian deposits crop out around the Yangshui anticline ( Bureau of Geology and Mineral Resources of Guizhou Province, 1987 ). Nantuo diamictites underlie ca. 20 m of purple to greenish...

... on its sedimentation Acta Petrologica et Mineralogica 2015 34 5 685 696 Zhang Y. Yan D. Zhao F. Li X. Qiu L. Zhang Y. Stratigraphic sequences, abundance anomalies and occurrences of As, Sb, Au, Ag in the Lower Cambrian Niutitang Formation in Kaiyang Phosphate Mine...

.... 1 b, 2 , and 3 ). NW- and NE-striking faults and folds are well developed in the NW Guizhou district, for example, the NW-trending Yadu-Ziyun fault ( Figs. 1 b, 2 , and 3 ), the NE-trending Nayong-Kaiyang and Anshun-Pingba faults, and the NE-trending Dayuan and Wuzhishan anticlines ( Figs. 2...

... significance . Journal of Sedimentary Petrology , 46 , 235 – 9 . Banerjee , D. M. , Schidlowski , M. , Siebert , F. & Brasier , M. D. 1997 . Geochemical changes across the Proterozoic–Cambrian transition in the Durmala phosphorite mine section, Mussoorie Hills, Garhwal Himalaya...