Search results
Results From The WOW.Com Content Network
The Mississippian (/ ˌ m ɪ s ɪ ˈ s ɪ p i. ə n / MISS-iss-IP-ee-ən), [5] also known as Lower Carboniferous or Early Carboniferous, is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earlier of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2
1 Geologic History, Stratigraphy & Tectonics. ... Shallow seas dropped between the Mississippian and Pennsylvanian around 330 million years ago.
The Visean, Viséan or Visian is an age in the ICS geologic timescale or a stage in the stratigraphic column. It is the second stage of the Mississippian, the lower subsystem of the Carboniferous. The Visean lasted from 346.7 to 330.3 Ma. [2] It follows the Tournaisian age/stage and is followed by the Serpukhovian age/stage.
The Mississippian epoch of geologic time, between 358.9 and 323.2 million years ago during the Carboniferous Period.
The division between Pennsylvanian and Mississippian comes from North American stratigraphy. In North America, where the early Carboniferous beds are primarily marine limestones, the Pennsylvanian was in the past treated as a full-fledged geologic period between the Mississippian and the Permian. In parts of Europe, the Mississippian and ...
Most of the Madison Limestones were deposited during Early to Middle Mississippian time (Tournaisian to Visean stages), about 359 to 326 million years ago. Older North American usage lists the Madison as being laid down during the Kinderhookian, Osagian, and Meramecian stages.
This is a list of official and unofficial names for time spans in the geologic timescale and units of ... period Paleozoic ICS ... Mississippian: 359.2 ± 2.5 318.1 ...
Mississippian may refer to: Mississippian (geology) , a subperiod of the Carboniferous period in the geologic timescale, roughly 360 to 325 million years ago Mississippian culture , a culture of Native American mound-builders from 900 to 1500 AD