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Conglomerado Cualac

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Conglomerado Cualac
Stratigraphic range: Jurassic
TypeFormation
Location
CountryMexico

The Conglomerado Cualac is a geologic formation in Mexico. First described by Guzmán in 1959, under the name Cuarcita Cualac. Later, Erben (1956) gave it their actual name. It consist of thick beds of a hard, white and sometimes yellowish conglomerate with a cuarcitic matrix. This conglomerate compounds almost exclusively of milky quartz pebbles between .5 and 5 centimeters of diameter. It also presents, in less quantity, pebbles of schist, gneiss, and tuff. Its thickness varies between 30 and more than 200 meters.[1] It preserves fossils dating back to the Jurassic period.

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References

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  1. ^ Corona-Esquivel, Rodolfo J. J. (1981). "Estratigrafia de la Región de Olinala-Tecocoyunca, Noreste del Estado de Guerrero" (PDF). Revista del Instituto de Geología de la Universidad Autónoma de México. 5 (1): 22, 17–24.

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