The Mifflin Formation is a fossil bearing geologic formation in Illinois dating to the Ordovician period. Earth sciences portal Illinois portal Paleontology...

Kinkaid formation to the west. Mt. Pleasant Sandstone, Bristow Sandstone, and Siberia Limestone. The Siberia is a thin tongue of the Menard formation. This...

The Knox Supergroup, also known as the Knox Group and the Knox Formation, is a widespread geologic group in the Southeastern United States. The age is...

quartz pebbles, as well as a matrix of quartz sand. The Wilcox Formation is a sand formation that is part of the Embayment Megagroup. It runs from southern...

The Hunton Megagroup also Hunton Super Group, Hunton Group, Hunton Formation and Hunton Limestone is predominantly composed of carbonate rock, deposited...

The St. Peter Sandstone is an Ordovician geological formation. It belongs to the Chazyan stage of the Champlainian series in North American regional stratigraphy...

Mifflin County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 46,143. Its county seat is Lewistown. The county...

use. The Petersburg formation also contains sandstone members that are used as aquifers. The Linton Formation is a geologic formation in Indiana. It is...

the standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance...

underlies the Antrim Shale. The North Vernon Limestone is a geologic formation in Indiana. Also called the Sellersburg Limestone, this term however is...

both offices. The longest term was that of the first governor, Thomas Mifflin, who served three full terms as governor in addition to two years as President...

The Munising Group or Formation is a 1,700 feet (520 m) thick, white to light grey Cambrian sedimentary unit that crops out in Michigan and (to a lesser...

The Glenwood Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period. Earth sciences portal Illinois...

Below is a list of sovereign states with the dates of their formation (date of their independence or of their constitution), sorted by continent. This...

The Leemon Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period. Earth sciences portal United States...

Formation Ordovician Maquoketa Group/Scales Shale Formation Ordovician Mayville Formation Silurian Mifflin Formation Ordovician Milwaukee Formation Devonian...

The Davis Formation is a geologic formation in Indiana and Missouri. It preserves fossils dating back to the Cambrian period. Paleontology portal List...

The Claiborne Formation, also referred to as the Claiborne Group, is a geologic formation in Arkansas, Illinois, Kentucky, and Texas. It preserves fossils...

The Warsaw Formation is a geologic formation in Illinois, Iowa and Missouri. It preserves fossils dating back to the Mississippian subperiod. Paleontology...

The Nachusa Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period. Earth sciences portal Illinois portal...

The Paoli Formation, Paoli Limestone, or Paoli Chert is a geologic formation in Indiana, Illinois, Kentucky and Missouri. This formation contains members...

The Dunleith Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period. Earth sciences portal Illinois...

is a geologic formation in Illinois. It is a finely-bedded dolomite, preserving fossils dating back to the Silurian period. This formation is named for...

Commons has media related to Fort Payne Formation. The Fort Payne Formation, or Fort Payne Chert, is a geologic formation found in the southeastern region of...

The Eau Claire Formation is a geologic formation in the north central United States. It preserves trilobite fossils from the Cambrian Period. Paleontology...

Harmony Group is located in the State of Indiana. It is made up of three formations, the Grassy Knob Chert, the Backbone Limestone and Clear Creek Chert....

its northernmost reaches where it grades in to the Joliet and Racine Formations it is about 150' thick. The St. Clair is composed of course calcite grains...

The Bond Formation is a geologic formation in Illinois, Kentucky and Indiana. It preserves fossils dating back to the Carboniferous period. List of fossiliferous...

Carboniferous Mifflin Formation Ordovician Mosalem Formation Silurian Nachusa Formation Ordovician North Hill Group/English River Devonian Oneota Formation Ordovician...

The Franconia Formation is a geologic formation in the upper mid-western United States, with outcroppings found in Illinois, Indiana, Iowa, Michigan,...