Panther Seep Formation

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Panther Seep Formation
Stratigraphic range: Kasimovian–Cisuralian
Type Formation
Underlies Hueco Group
Overlies Lead Camp Limestone, Bishop Cap Formation
Thickness200–2,640 ft (61–805 m)
Lithology
Primary Shale
Other Sandstone, limestone
Location
Coordinates 33°14′17″N106°40′42″W / 33.23806°N 106.67833°W / 33.23806; -106.67833
Region New Mexico
Country United States
Type section
Named forPanther Seep
Named byKottlowski et al.
Year defined1956
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Panther Seep Formation (the United States)
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Panther Seep Formation (New Mexico)

The Panther Seep Formation is a geologic formation found in the mountain ranges of south-central New Mexico. [1] It preserves fossils dating back to the late Pennsylvanian to early Permian. [2]

Contents

Description

The formation is highly variable in lithology, consisting of interbedded black to reddish sandy, silty, or calcareous shale; brown to olive calcareous siltstone, brown to gray calcareous arkosic sandstone; gypsum; and gray argillaceous to silty limestone. It varies in thickness from 200–2,640 feet (61–805 m). [1] [2] It overlies the Lead Camp Limestone or Bishop Cap Formation and is overlain by the Hueco Group. [3]

The unit likely correlates with Bar B Formation in the Caballo Mountains and the Holder Formation in the Sacramento Mountains. [2]

Fossils

The formation includes patch reefs and numerous fusulinids of Virgilian (Gzhelian) age. [1] The formation also contains algae and some invertebrate fossils typical of the Virgilian. The lower beds may be Missourian (Kasimovian) in age while the uppermost beds may be Wolfcampian (Cisuralian) in age.

History of investigation

The formation was first defined by F.E. Kottlowski and coinvestigators in 1956, who divided it into informal upper and lower members. [1]

See also

Footnotes

Related Research Articles

The Bishop Cap Formation is a geologic formation in the Franklin Mountains of southern New Mexico and western Texas and the Hueco Mountains of western Texas. It preserves fossils dating back to the Moscovian to Kasimovian Ages of the early Pennsylvanian.

The Hueco Formation is a geologic formation in west Texas and southern New Mexico. It preserves fossils dating back to the early Permian period.

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References