page_title: Morro Solar
section_title: Geology
hierarchical_section_title: Morro Solar / Geology
caption_attribution_description: Geological stratification of sedimentary formation, about 140 million years old, of Morro Solar. Lima, Peru.
context_page_description: Morro Solar is a headland, situated in the district of Chorrillos, to the south of Lima, Peru. Morro Solar is notable for being a site of the Battle of San Juan and Chorrillos between Peruvian and Chilean forces in 1881. Notable landmarks include an astronomical observatory and a monument to an unknown soldier. Its geological formations are rich in silver which is being extracted by several mining companies.
context_section_description: The Morro Solar is part of the very strange topography of Lima which evolved as a result of geological readjustments. It resulted from high sea winds which shaped the rocky formations in the form of a hollow ring. The geological formation of these hills consists primarily of sedimentary outcrops (shallow marine sedimentary facies) and also of the Andean spurs located North and South of the city. The sedimentary sequence has been mapped with appropriate notes on directions and dips of the strata, faults and dykes and the interpreting geological events. The lithology of rock and other features such as oxidation, fracturing and mineralization have been recorded. The mapping has indicated three terraces with a substantial amount of boulders, at altitudes of 110 m (360 ft), 85 m (279 ft) and near the coast, from the Quaternary Period. Quartzites, shales and sandstones from the Cretaceous and Lower Cretaceous have been reported.
  Dykes have outcrops of trachytic andesite, dacite and rhyodacite. One of the faults in the dykes runs north to south, another east to west, in the sedimentary rocks.
caption: Geological stratification of sedimentary formation, about 140 million years old, of Morro Solar. Lima, Peru.
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