Gypsum evaporites in a patch reef of the upper Slite Group in the Silurian (Wenlock) of Gotland, Sweden
Färber C, Munnecke A (2014)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2014
Journal
Publisher: Taylor and Francis Ltd.
Book Volume: 136
Pages Range: 75-79
Journal Issue: 1
URI: http://www.tandfonline.com/doi/abs/10.1080/11035897.2013.859173
DOI: 10.1080/11035897.2013.859173
Abstract
Calcite pseudomorphs after gypsum are observed in a patch reef in the upper Slite Group (Wenlock) on north-east (NE) Gotland (Sweden). The idiomorphic pseudomorphs occur (a) in silt-sized carbonate sediment in former moldic pores, (b) in the micritic matrix of bioclastic rudstones and (c) in the thrombolitic matrix of the reef. The dominance of stenohaline organisms in the reef indicates normal marine salinities during reef growth. The development of evaporitic conditions and the formation of evaporitic minerals therefore postdate reef growth. The authigenic gypsum crystals are interpreted to be formed by downward percolating hypersaline brines which existed on an extremely shallow carbonate platform during the early Homerian (latest Cyrtograptus lundgreni graptolite Zone) regression. © 2013 © 2013 Taylor & Francis.
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APA:
Färber, C., & Munnecke, A. (2014). Gypsum evaporites in a patch reef of the upper Slite Group in the Silurian (Wenlock) of Gotland, Sweden. GFF, 136(1), 75-79. https://doi.org/10.1080/11035897.2013.859173
MLA:
Färber, Claudia, and Axel Munnecke. "Gypsum evaporites in a patch reef of the upper Slite Group in the Silurian (Wenlock) of Gotland, Sweden." GFF 136.1 (2014): 75-79.
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