| Loreto Formation | |
|---|---|
| Stratigraphic range: Priabonian (Divisaderan) | |
| Type | Geological formation |
| Underlies | not observed |
| Overlies | Leña Dura Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate, coal |
| Location | |
| Coordinates | 53°06′S 71°06′W / 53.1°S 71.1°W |
| Approximate paleocoordinates | 55°18′S 61°24′W / 55.3°S 61.4°W |
| Region | Magallanes y la Antártica Chilena Region |
| Country |  Chile |
| Extent | Magallanes Basin |
| Type section | |
| Named by | Hoffstetter et al. |
| Year defined | 1957 |
  Loreto Formation (Chile) | |
Loreto Formation (Spanish: Formación Loreto) is a sedimentary formation of Late Eocene age in the southernmost Magallanes Basin. It overlies the Leña Dura Formation and the contact with an overlying formation is not observed.[1] From 2013 to 2020 its coals were mined in Invierno mine, Riesco Island.[2][3][4]
- ^ Torres et al., 2009, p.2
- ^ "Los errores y contradicciones del caso Mina Invierno". Guía minera de Chile (in Spanish). Retrieved 2023-04-06.
- ^ Pozo B., Andrés (2014-08-11). "El silencioso primer año de Mina Invierno". Diario Financiero (in Spanish). Retrieved 2023-03-15.
- ^ González Encina, Verónica (2022-03-08). "Copec concreta la venta de su participación en Mina Invierno". Reporte Minero (in Spanish). Retrieved 2022-06-08.
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