Type Geological formation Named by Valenzuela, 1982 | Country Chile Overlies Ancud Volcanic Complex | |
Region Chiloé Island (Los Lagos Region) | ||
Lacui Formation (Spanish: Formación Lacui) is a marine Miocene sedimentary formation located in Chiloé Island with minor outcrops near Carelmapu on the mainland. Gastropod shells are the most common macrofossils of Lacui Formation. According to Sernageomin (1998) the formation dates to the earliest Serravallian — that is the Middle Miocene.
References
Lacui Formation Wikipedia(Text) CC BY-SA