A Paleoproterozoic drowned carbonate platform on the southeastern margin of the Wyoming Craton: a record of the Kenorland breakup

Rare Earth Element and yttrium compositions of Archean and Paleoproterozoic Fe formations revisited: New perspectives on the significance and mechanisms of deposition

“…The Benchmark Iron Formation is preserved in the Nemo area of the Black Hills uplift which is the easternmost Laramide exposure of the Archean Wyoming Province in the central United States (Bekker and Eriksson, 2003). The age constraints for the unit are based on UPb zircon geochronology of the Blue Draw Metagabbro (McCombs et al, 2004) that intrudes the early Paleoproterozoic rift sequence including the oxide-facies Benchmark Iron Formation (Bekker and Eriksson, 2003).…”

“…The age constraints for the unit are based on UPb zircon geochronology of the Blue Draw Metagabbro (McCombs et al, 2004) that intrudes the early Paleoproterozoic rift sequence including the oxide-facies Benchmark Iron Formation (Bekker and Eriksson, 2003). The REE systematics of the Benchmark Iron Formation was discussed in Frei et al (2008).…”

Progressive drowning of carbonate platform in the Moravo-Silesian Basin (Czech Republic) before the Frasnian/Famennian event: facies, compositional variations and gamma-ray spectrometry

“…Platform drowning may occur in various tectonic settings: extensional basins (Bernoulli and Jenkyns 1974;Bice and Stewart 1990), pull-apart basins (Duncan et al 1999) and foreland basins (Robertson 1988;Galewsky 1998). It was described from the Precambrian (Bekker and Eriksson 2003;Adams et al 2004) to the Holocene (Corselli et al 1994). Of particular interest for the study of drowning is the Late Devonian global rearrangement of carbonate factories, which was largely linked to the Frasnian/Famennian (F/F) biotic crisis (Walliser 1996;Schindler 1990Schindler , 1992.…”

Source and Significance of Detrital Zircons from Mesozoic Sandstones of the Upper Yangtze Block, China

“…Zircons of 2600-2300 Ga are abundant (12%-33%) in the four samples, which corresponds with magmatic events identified in the Kongling Complex (Gao et al, 1999;Gao Shan et al, 2001;Gao et al, 2011) and the Huangtuling granulites (Wu Yuanbao, 2002;Wu Yuanbao et al, 2008) in the north Yangtze Craton, the Yudongzi Group (Zhang Hongfei et al, 2007;Hui et al, 2017) and the Houhe Complex (Wu Yuanbao et al, 2012) in the northwest Yangtze Craton. Moreover, during the period, global craton began to form and be stable that corresponds with assembly of the Kenor supercontinent/supercraton (Bekker and Eriksson, 2003;Tang et al, 2011).…”