Morro Solar Group | |
---|---|
Stratigraphic range: Berriasian- Hauterivian | |
![]() The seaward tilting of the strata of Salto del Fraile Fm. was caused by the
Andean orogeny | |
Type | Geological group |
Location | |
Region | Lima Province |
Country | ![]() |
Type section | |
Named for | Morro Solar |
The Morro Solar Group ( Spanish: Grupo Morro Solar) is a stratigraphic group of Mesozoic-aged sedimentary formations exposed near Lima, Peru. The groups formations more specifically of Berriasian and Valanginian age ( Early Cretaceous) and overlies the Jurassic Puente Piedra Group and underlies the Cretaceous Pamplona Formation. The Morro Solar Group is intruded by sills of andesitic composition. [1] Together with the Casma and Imperial Groups, the Morro Solar Group contains clastic volcanosedimentary material derivative of the Mesozoic Casma Volcanic Arc. [2] The formations of the group hosts mostly local fossils which do not have counterparts for biochronological correlation in other regions. [3]
The formations of the Morro Solar Group are: La Herradura Formation (Spanish: Formación La Herradura), whose sediments reflect a marine near-shore deposition environment, [4] the Valanginian Salto del Fraile Formation (Spanish: Formación Salto del Fraile), and the Marcavilca Formation (Spanish: Formación Marcavilca). [1] The Salto del Fraile Formation is equivalent to the basal part of the Huancané Formation found further inland. [5]
{{
cite journal}}
: Cite journal requires |journal=
(
help)