The MosheimLimestone is a geological formation in Virginia. It preserves fossils dating back to the Ordovician period. Earth sciences portal Virginia...
"Trenton Limestone". Indiana Geological and Water Survey. Indiana University. Retrieved 6 July 2020. Orton, Edward (1889). "THE TRENTON LIMESTONE AS A SOURCE...
in 1839. The Marcellus consists predominantly of black shale and a few limestone beds and concentrations of iron pyrite (FeS2) and siderite (FeCO3). Like...
The Greenbrier Limestone, also known locally as the "Big Lime", is an extensive limestone unit deposited during the Middle Mississippian Epoch (345.3 ±...
Formation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia, and West Virginia. The Keyser is a nodular limestone overlain by thick-...
The Late Silurian Tonoloway Formation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia and West Virginia. The Tonoloway is roughly...
Bowen Formation is mostly calcareous sandstone and mudrock rather than limestone. The thicker upper part of the formation is composed of layered red mudrock...
Stony Gap Sandstone Member of the Hinton Formation and overlying the limestone-rich Greenbrier Group. As with many other units in southeast West Virginia...
and West Virginia. The Shady is predominantly composed of dolomite and limestone with lesser amounts of mudrock. It contains fossils of trilobites, archaeocyathids...
contain several thick grey shale formations, occasionally marked with limestone stringer. It overlies the Marcellus Shale, a fissile gray-black to black...
It is also laterally equivalent to a sandy limestone unit which is often equated with the Onondaga Limestone. to the west and the Needmore Shale to the...
shale and slate. Local members of impure sandstone; thin, argillaceous limestone or phyllitic shale are present in the Cumberland Valley and the Lehigh...
fossils dating back to the Carboniferous period. It is mainly made up of limestone, sandstone, and shale. Earth sciences portal Paleontology portal List...
The Lincolnshire Formation, often known as the Lincolnshire Limestone, is an Ordovician-age geological formation in the Appalachian region of the Eastern...
the Upper Ordovician Coburn Formation at the top of the Trenton Group limestone and conformably below the Bald Eagle Formation. Isotopic dating of shale...
in Crawford County, Pennsylvania, where it is also known as "Hayfield limestone". It is extremely lenticular and highly localized, and gray to bluish-gray...
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