Loreto Formation
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
Bibliography
Bostelmann, Enrique; Le Roux, Jacobus P.; Vasquez, Ana; Gutiérrez, Nestor; Oyarzún, José Luis; Carreño, Catalina; Torres, Teresa; Otero, Rodrigo; Llanos, C. Mark Fanning, Sven N. Nielsen and Francisco Hervé , Andrea (2012), A revised lithostratigraphy of the Sierra Baguales, Magallanes Basin (PDF) , XIII Congeso Geológico Chileno, pp. 698–700, archived from the original (PDF) on 2018-11-03, retrieved 2019-02-15 {{citation }}
: CS1 maint: multiple names: authors list (link )
Otero, Rodrigo A.; Torres, Teresa; Le Roux, Jacobus P.; Hervé, Francisco ; Fanning, C. Mark; Yuri Yáñez, Roberto E.; Rubilar Rogers, David (2012), "A Late Eocene age proposal for the Loreto Formation (Brunswick Peninsula, southernmost Chile), based on fossil cartilaginous fishes, paleobotany and radiometric evidence" (PDF) , Andean Geology , 39 : 180–200, doi :10.5027/andgeoV39N1-a09 , retrieved 2019-02-15
Sallaberry, M.A.; Yury Yáñez, R.E.; Otero, R.A.; Soto Acuña, S.; Torres, T.G. (2010), "Eocene birds from the western margin of southernmost South America" (PDF) , Journal of Paleontology , 84 (6): 1061–1070, Bibcode :2010JPal...84.1061S , doi :10.1666/09-157.1 , retrieved 2019-02-15
Torres, T.; Meón, H.; Otero, R.; Galleguillos, H. (2009), Palinoflora y macroflora de la Formación Loreto, Punta Arenas, Región de Magallanes, Chile (PDF) , XII Congreso Geológico Chileno, pp. 1–4, retrieved 2019-02-15
Terranes Sedimentary formations and groups
Batholiths Metamorphic complexes Faults