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Oxaya Formation, the Glossary

Oxaya Formation (Formación Oxaya) is a geological formation in northern Chile made up of ignimbrite sheets.^[1]

Arica y Parinacota Region

The Arica y Parinacota Region (Región de Arica y Parinacota) is one of Chile's 16 first order administrative divisions.

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Azapa Formation (Formación Azapa) is a geological formation in northern Chile made up of gravels of fluvial origin. Oxaya Formation and Azapa Formation are geologic formations of Chile, geology of Arica y Parinacota Region, Neogene Chile, Oligocene Series of South America and Oligocene volcanism.

See Oxaya Formation and Azapa Formation

Chile

Chile, officially the Republic of Chile, is a country in western South America.

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Ignimbrite

Ignimbrite is a type of volcanic rock, consisting of hardened tuff.

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Lupica Formation

Lupica Formation (Formación Lupica) is a volcano-sedimentary geological formation in the Andes of Arica y Parinacota Region in northernmost Chile. Oxaya Formation and Lupica Formation are geologic formations of Chile and geology of Arica y Parinacota Region.

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Million years ago

Million years ago, abbreviated as Mya, Myr (megayear) or Ma (megaannum), is a unit of time equal to (i.e. years), or approximately 31.6 teraseconds.

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Miocene

The Miocene is the first geological epoch of the Neogene Period and extends from about (Ma).

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Norte Grande

The Norte Grande (Big North, Far North, Great North) is one of the five natural regions into which CORFO divided continental Chile in 1950.

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Oligocene

The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present (to). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain.

See Oxaya Formation and Oligocene

Oxaya anticline

The Oxaya anticline is a large north–south aligned anticline and buckle in the Chilean Andes west of the Altiplano Plateau. Oxaya Formation and Oxaya anticline are geology of Arica y Parinacota Region.

See Oxaya Formation and Oxaya anticline