Lacui Formation ( es, Formación Lacui) is a marine

Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...

sediment Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sa ...

ary

formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondar ...

located in

Chiloé Island Chiloé Island ( es, Isla de Chiloé, , ) also known as Greater Island of Chiloé (''Isla Grande de Chiloé''), is the largest island of the Chiloé Archipelago off the west coast of Chile, in the Pacific Ocean. The island is located in southern ...

with minor outcrops near

Carelmapu Carelmapu (lit. from Mapudungun "Green Land") is a port and town ( es, pueblo) at the western end of Chacao Channel, southern Chile. Carelmapu was established by the Spanish in 1602 as San Antonio Ribera de Carelmapu following the Destruction of ...

on the mainland.

Gastropod shell The gastropod shell is part of the body of a gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some ...

s are the most common macrofossils of Lacui Formation. According to

Sernageomin 250px, Sernageomin building in Providencia, Santiago. The National Geology and Mining Service ( es, Servicio Nacional de Geología y Minería; SERNAGEOMIN) is a Chilean government agency. Its function is to provide geological information and adv ...

(1998) the formation dates to the earliest

Serravallian The Serravallian is, in the geologic timescale, an age or a stage in the middle Miocene Epoch/Series, which spans the time between 13.82 Ma and 11.63 Ma (million years ago). The Serravallian follows the Langhian and is followed by the Tortonian ...

— that is the Middle Miocene. South of Lacui Formation there are equivalent sedimentary rocks in the islands of Ipún,

Lemo LEMO is an electronic and fiber optic connector manufacturer, based in Écublens, Switzerland. It is known for producing the push-pull connectors. LEMO connectors are used in medical, industrial, audio/visual, telecommunications, military, sc ...

and Stoke.

References

{{Geology of Chile Geologic formations of Chile Neogene Chile Serravallian Miocene Series of South America Laventan Chiloé Archipelago Geology of Los Lagos Region

See also

References