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]

Description

The formation contains fossil wood, leaf imprints and palynomorphs.[5] Also fossil fish of Striatolamia macrota and Ischyodus dolloi and indeterminate Spheniscidae fossils have been found in the formation.[6][7]

The formation crops out in Brunswick Peninsula and Sierra Baguales among other places.[8]

References

  1. ^ Torres et al., 2009, p.2
  2. ^ "Los errores y contradicciones del caso Mina Invierno". Guía minera de Chile (in Spanish). Retrieved 2023-04-06.
  3. ^ Pozo B., Andrés (2014-08-11). "El silencioso primer año de Mina Invierno". Diario Financiero (in Spanish). Retrieved 2023-03-15.
  4. ^ González Encina, Verónica (2022-03-08). "Copec concreta la venta de su participación en Mina Invierno". Reporte Minero (in Spanish). Retrieved 2022-06-08.
  5. ^ Otero et al., 2012
  6. ^ Salaberry et al., 2010, p.1062
  7. ^ Rio de las Minos at Fossilworks.org
  8. ^ Bostelmann et al., 2012

Bibliography

Allikas: http://en.wikipedia.org/wiki/Loreto_Formation
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