Archivo: Estratos de Metapán

Descripción: The Metapán strata correspond to the oldest rocks in El Salvador; this name groups together the stratigraphic units that were deposited from the Jurassic to the beginning of the Neogene period, and as its name indicates, they are mainly found in the Metapán district. These stratigraphic units are: The Espinal complex, from the Jurassic period and made up of volcanic and metamorphic rocks. The Todos Santos formation, from the lower Cretaceous and made up of red layers of sedimentary origin and volcanic rocks. The Yojoa Group, which is divided into the Catarranas and Atima formations; it dates from the Aptian to the Albian ages of the Cretaceous, and is made up of marls and limestones. The Valle de los Ángeles Group, which is divided into lower red layers (with sedimentary and volcanic rocks, from the Albian to Cenomanian ages of the Cretaceous, and which on the map appears with the same color as the Todos Santos formation), the Jaitique formation (made up of marls and limestones, from the Cenomanian to Turonian ages, and whose outcrops on the map appear with the same color as the Yojoa Group), and the upper red layers (of sedimentary rocks, dating from the Upper Cretaceous to the Lower Miocene).
Autor: Juan Miguel
Términos de Uso: Atribución-CompartirIgual 3.0 No portada
Licencia: CC-BY-SA-3.0
Enlace de Licencia: http://creativecommons.org/licenses/by-sa/3.0/deed.es
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