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The Greenbrier Limestone, also known locally as the "Big Lime", is an extensive limestone unit deposited during the Middle Mississippian Epoch (345.3 ± 2.1 – 326.4 ± 1.6 Ma), part of the Carboniferous Period.
Travertine – Form of limestone deposited by mineral springs; Tufa – Porous limestone rock formed when carbonate minerals precipitate out of ambient temperature water; The following sections include both formal stratigraphic unit names and less formal designations, although are these are not differentiated.
Special pages; Permanent link; Page information ... The Pope Mega Group is a geologic unit found in the Illinois Basin of ... Also known at the Kinkaid Limestone ...
The Pembroke Limestone Group is a stratigraphic unit of Courceyan to Brigantian age (Early Carboniferous) found in southern Wales and northern Somerset. It forms part of the Carboniferous Limestone Supergroup . [ 1 ]
The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy. Physical characteristics include colour, texture, grain size , and composition.
Special pages; Permanent link; ... Unit of: Onondaga Group: Sub-units: ... The Columbus Limestone is a mapped bedrock unit consisting primarily of fossiliferous ...
The Peak Limestone Group is a Carboniferous lithostratigraphic group (a sequence of rock strata) in the Peak District of northern England and the north Midlands. The group largely comprises limestones , including biosparite and cherty micrite but also some subordinate mudstones , siltstones and dolomites .
The Platteville Limestone cropping out in Minnehaha Park, Minneapolis. The Platteville Limestone is the less-eroded, layered unit that constitutes the majority of the photo. Below it is a thin, dark layer of Glenwood Shale. Below the shale is a thin, white stripe of St. Peter Sandstone, followed by a slope of eroded St. Peter Sandstone material.