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Researchers from Kuwait University Discuss Findings in Soil Science (Petrography and genesis of Quaternary coastal gypcrete in North Kuwait, Arabian...

July 4, 2014



Researchers from Kuwait University Discuss Findings in Soil Science (Petrography and genesis of Quaternary coastal gypcrete in North Kuwait, Arabian Gulf)

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Science have been published. According to news reporting originating from Kuwait, Kuwait, by NewsRx correspondents, research stated, "Gypcrete crusts cover Late Quaternary playa deposits within the northern coastal flat of Kuwait Bay, Arabian Gulf. This study provides insight into the genesis of the gyperete crust associated with the fluvial playa in an arid coastal area."

Our news editors obtained a quote from the research from Kuwait University, "The playa sediments are mostly muddy sand rich in diagenetic gypsum. The latter is concentrated at the top part of this playa where the gyperetic crust is developed. Field investigation, megascopic, microscopic and nanoscopic examination, and XRD analysis revealed the occurrence of several types of gyperetes, namely massive hard crust, hard clustered gypsum roses, gypseous rhyzocrete, and powdery crust. With the exception of the last type, all gyperetes are formed largely of gypsum with subordinate amounts of bassanite. Two genetic types of bassanite are recognised; these are replacive and precipitative. Replacive bassanite is the most common and is mainly represented by topotactic alteration of gypsum, whereas the precipitative mode is mostly restricted to the powdery crumbled crust and root cavity-fill. The micromorphology of both types of bassanite is discussed."

According to the news editors, the research concluded: "It is suggested that the stability of bassanite is attributed to the elevated ambient temperatures in the presence of highly saline brine and organic acids."

For more information on this research see: Petrography and genesis of Quaternary coastal gypcrete in North Kuwait, Arabian Gulf. Geoderma, 2014;226():223-230. Geoderma can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Geoderma - www.elsevier.com/wps/product/cws_home/503332)

The news editors report that additional information may be obtained by contacting F.I. Khalaf, Kuwait University, Fac Sci, Earth & Environm Sci Department, Kuwait 13060, Kuwait. Additional authors for this research include A. Al-Zamel and I. Gharib (see also Science).

Keywords for this news article include: Asia, Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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