Morrow Formation

The Morrow Formation is a geologic formation from the Pennsylvanian geological age that is found in locations ranging from Southeast New Mexico and West Texas to locations in Oklahoma, Southwestern Kansas, and Arkansas.

The Morrow Formation is found in the Delaware Basin of southeastern New Mexico.

Unique characteristics of this formation are: Source: [4] The Morrow facies (body of rock with specific characteristics) was deposited in a complex of mixed siliciclastic (mostly silica bearing rock) and carbonate depositional environments.

[5] The Morrow Formation is typically divided into two intervals: Source: [6] In Prediction of reservoir geometries in the Morrow of southeastern New Mexico, the southern shelf of Belize, Central America is considered an analogue in the present time to the depositional process that had taken place in the Morrowan in SE New Mexico, during the time of the ancient Delaware Sea.

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Map of Delaware Basin. Morrow sand was largely deposited in the NW Shelf of the basin
An example of the flatness found in the region. Image from near the Carlsbad Caverns in Carlsbad , New Mexico.