The Early Miocene Gachsaran Formation is composed of evaporites, marl and limestone. |
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There is strong sedimentological evidence that the evaporites were precipitated in sabkhas or desert salt lakes. |
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The Rhaetian-Lower Sinemurian shallow ramp units are composed of platform carbonates, evaporites and minor siliciclastic deposits. |
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These linear depressions are filled with brines that are the result of dissolution of evaporites by fluids travelling up the flank of the structure. |
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However, a relative sea level fall in the late Oxfordian was followed by the accumulation of 200 m of subaqueous evaporites and marginal sabkha facies under a dry climate. |
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Turbidite deposits and westward younging of limestones and evaporites record the development of the foreland fold and thrust belt during the Late Carboniferous Epoch. |
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The preponderance of evidence for intrasediment growth and dissolution of evaporites supports a sabkha and, in particular, a saline mudflat setting. |
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After both platforms were submerged, the formation of carbonates and evaporites has characterized the geologic history of these two stable areas. |
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The Hellenic Trench of the Hellenic arc system is unusual because this convergent margin subducts evaporites. |
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It is composed of sabkha evaporites and subaqueous evaporites with thin carbonate interbeds that can be traced for hundreds of kilometers. |
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Geological data indicate that this seal is made up of Messinian evaporites which formed some 60 million years ago. |
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The Triassic continental interior climate was generally hot and dry, so that typical deposits are red bed sandstones and evaporites. |
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Marine evaporites tend to have thicker deposits and are usually the focus of more extensive research. |
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However, some sedimentary rocks, such as evaporites, are composed of material that form at the place of deposition. |
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The majority of potash is extracted from ancient underground evaporites. |
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The basin contains over 800 pinnacle and atoll reefs of the Keg River Formation formed during the Mid-Devonian and are encased in sealing evaporites of the Muskeg Formation. |
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At a 2004 conference of the International Geological Union, the editors of this volume noticed that the study of evaporites had been compartmentalized by region. |
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Alan Kendall introduces marine evaporites by noting that evaporite mineral crystallization from subaqueous settings is most prevalent at the top or bottom of the water column. |
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Evaporites undergo changes on burial owing to reactions between interstitial brines and previously deposited salts to produce new suites of minerals. |
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Evaporites are considered sedimentary rocks and are formed by chemical sediments. |
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Evaporites can also be easily recrystallized in laboratories in order to investigate the conditions and characteristics of their formation. |
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The Mallee Well trench was dug by NT Evaporites circa 1990 and has remained open ever since. |
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