MISSISSIPPIAN

https://gcmd.earthdata.nasa.gov/kms/concept/a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca

broader
https://gcmd.earthdata.nasa.gov/kms/concept/b5b2981d-1623-4988-8b28-4cb8085a62e1 original
narrower
a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca original
change note
2019-11-19 12:52:00.0 [tstevens] Insert Concept
add narrower relation (MISSISSIPPIAN [a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca,396487] - UPPER [03796134-4406-43d2-88e9-8334843e9153,423401]);
2019-11-19 12:52:21.0 [tstevens] Insert Concept
add narrower relation (MISSISSIPPIAN [a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca,396487] - MIDDLE [0f8853f9-6fc0-4a72-9e61-8b8a5e1fdae7,423405]);
2019-11-19 12:52:28.0 [tstevens] Insert Concept
add narrower relation (MISSISSIPPIAN [a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca,396487] - LOWER [c0489a3d-7571-44f8-ae10-bc56da60a29e,423409]);
2019-12-17 09:23:37.0 [tstevens]
insert Definition (id: null
text: The Mississippian is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earliest/lowermost of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years ago. The Mississippian was a period of marine transgression in the Northern Hemisphere: the sea level was so high that only the Fennoscandian Shield and the Laurentian Shield were dry land. The cratons were surrounded by extensive delta systems and lagoons, and carbonate sedimentation on the surrounding continental platforms, covered by shallow seas. In North America, where the interval consists primarily of marine limestones, it is treated as a geologic period between the Devonian and the Pennsylvanian. During the Mississippian an important phase of orogeny occurred in the Appalachian Mountains. It is a major rock-building period named for the exposures in the Mississippi Valley region. The USGS geologic time scale shows its relation to other periods. In Europe, the Mississippian and Pennsylvanian are one more-or-less continuous sequence of lowland continental deposits and are grouped together as the Carboniferous system, and sometimes called the Upper Carboniferous and Lower Carboniferous instead.
language code: en);
definition The Mississippian is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earliest/lowermost of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years ago. The Mississippian was a period of marine transgression in the Northern Hemisphere: the sea level was so high that only the Fennoscandian Shield and the Laurentian Shield were dry land. The cratons were surrounded by extensive delta systems and lagoons, and carbonate sedimentation on the surrounding continental platforms, covered by shallow seas. In North America, where the interval consists primarily of marine limestones, it is treated as a geologic period between the Devonian and the Pennsylvanian. During the Mississippian an important phase of orogeny occurred in the Appalachian Mountains. It is a major rock-building period named for the exposures in the Mississippi Valley region. The USGS geologic time scale shows its relation to other periods. In Europe, the Mississippian and Pennsylvanian are one more-or-less continuous sequence of lowland continental deposits and are grouped together as the Carboniferous system, and sometimes called the Upper Carboniferous and Lower Carboniferous instead.
narrower
https://gcmd.earthdata.nasa.gov/kms/concept/03796134-4406-43d2-88e9-8334843e9153 original
broader
a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca original
https://gcmd.earthdata.nasa.gov/kms/concept/0f8853f9-6fc0-4a72-9e61-8b8a5e1fdae7 original
broader
a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca original
https://gcmd.earthdata.nasa.gov/kms/concept/c0489a3d-7571-44f8-ae10-bc56da60a29e original
broader
a9aac8e7-10bc-4fe9-bf8e-c45db58b5eca original
reference
text International Commission on Stratigraphy (http://www.stratigraphy.org/)
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in scheme chronounits original