siltstone

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siltstone

[′silt‚stōn]
(geology)
Indurated silt having a shalelike texture and composition. Also known as siltite.
References in periodicals archive ?
The Ediacaran, Cambrian and Lower Ordovician sections are dominated by sandstone, siltstone and claystone.
The Bloomsburg Red Beds exhibit well-defined, fining-upward sequences, and comprise fine to coarse grained sandstone grading upward into siltstone and shale (Smith, 1967).
This bed is both underlain and overlain by fine quartz sandstone, interbedded with micaceous siltstone beds, some of which preserve a well-developed Cruziana ichnofacies association.
Shelly fossils, mainly brachiopods of late Arenig age, have been found in sandy tuff, sandstone, siltstone and mudstone at several places within the basal beds of the Tetagouche Group.
The lateral extent of some siltstone layers indicates that they were deposited in an extensive body of water.
The Salado Formation, or main salt, consists of thick halite intervals interbedded with anhydrite, polyhalite, and siltstone.
This siltstone of the Horseshoe Bend Shale of the Devonian aged Finke Group is basement to most lakes in the project area and, where it is fractured, it contains free-flowing brine.
The Nahr Umr is the first major non-carbonate formation in the succession and consists of shales and minor glauconitic siltstones which pass laterally to limestones in the Oman mountain front to the east.
Sandstones, siltstones, shales, and underclays constitute approximately 40% of the core thickness in WM-8, and 45% in WM-10.