EL GUAPO, Shales

UPPER CRETACEOUS ?

State of Miranda, Venezuela

Author of name: A. H. Garner, 1926.

Original reference: A. H. Garner, 1926, p. 681.

Original description: ibid.

The name El Guapo shales was first used and published by A. H. Garner (1926, p. 681) to designate a stratigraphic unit which he referred to the Oligocene age thatoutcrops along the Guapo River, about 3 miles to the south of the town of El Guapo, District of Páez, State of Miranda.

The unit is made up of dark gray to black shales with conchoidal fracture and limolitic concretions. In the lower part there are thin beds of dark brown sandstones.

There is no available information that would allow us to correlate such rocks with some unit of the present stratigraphic nomenclature, but according to Sellier de Civrieux (oral comunication) shales containing a microfauna of the type Vidoño are known to outcrop in said locality.

The name El Guapo is obsolete.

R. Laforest