About: Cancosa paleolake

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The paleolake of Cancosa is a former lake at Cancosa, Chile. The existence of the lake was inferred on the basis of limnic sediments in the area, which lies in the Tarapacá Region of Chile. Presently, the area is occupied by a basin at about 3,950 metres (12,960 ft) altitude within the Western Cordillera and surrounded by high mountains, such as Cerro Porquesa and Sillajhuay. The area is arid (precipitation less than 200 millimetres per year (7.9 in/year)) owing to the rain shadow of the Andes and the influence of the South Pacific High; most precipitation falls during summer.

Attributes	Values
rdf:type	geo:SpatialThing
rdfs:label	Cancosa paleolake (en)
rdfs:comment	The paleolake of Cancosa is a former lake at Cancosa, Chile. The existence of the lake was inferred on the basis of limnic sediments in the area, which lies in the Tarapacá Region of Chile. Presently, the area is occupied by a basin at about 3,950 metres (12,960 ft) altitude within the Western Cordillera and surrounded by high mountains, such as Cerro Porquesa and Sillajhuay. The area is arid (precipitation less than 200 millimetres per year (7.9 in/year)) owing to the rain shadow of the Andes and the influence of the South Pacific High; most precipitation falls during summer. (en)
geo:lat	-19.833334 (xsd:float)
geo:long	-68.666664 (xsd:float)
dcterms:subject	Geology of Tarapacá Region Former lakes of South America Holocene South America Lakes of Tarapacá Region
Wikipage page ID	55717565 (xsd:integer)
Wikipage revision ID	1021906177 (xsd:integer)
Link from a Wikipage to another Wikipage	Before Present Holocene Salt lake Arid Bog Sedimentary basin South Pacific High Geology of Tarapacá Region Tarapacá Region Chile Lake Titicaca Diatom Former lakes of South America Cordillera Occidental (Bolivia) Eutrophic Paleolake Cancosa Holocene South America Lakes of Tarapacá Region Radiocarbon dating Cerro Porquesa Alto Toroni Periphyton Rain shadow Limnic Salar de Coipasa dbr:Achnanthes_lanceolata dbr:Cancosa_River dbr:Fragilaria_capucina dbr:Naviculadicta_chilensis dbr:Ocacucho_River dbr:Saccaya_River
Link from a Wikipage to an external page	http://fgg-erlangen.de/fgg/ojs/index.php/mfgg/article/view/116%7Caccessdate=5 http://www.bgbm.org/sites/default/files/documents/cediatom130Schreck%2Bal.pdf%7Cjournal=Proceedings
sameAs	Cancosa paleolake Cancosa paleolake
dbp:wikiPageUsesTemplate	dbt:Cite_journal dbt:Convert dbt:Coord dbt:Refbegin dbt:Refend dbt:Reflist dbt:Sfn dbt:Altiplano_lakes_and_paleolakes
georss:point	-19.833333333333332 -68.66666666666667
has abstract	The paleolake of Cancosa is a former lake at Cancosa, Chile. The existence of the lake was inferred on the basis of limnic sediments in the area, which lies in the Tarapacá Region of Chile. Presently, the area is occupied by a basin at about 3,950 metres (12,960 ft) altitude within the Western Cordillera and surrounded by high mountains, such as Cerro Porquesa and Sillajhuay. The area is arid (precipitation less than 200 millimetres per year (7.9 in/year)) owing to the rain shadow of the Andes and the influence of the South Pacific High; most precipitation falls during summer. The lake has been reconstructed on the basis of data obtained by analyzing its sediments and the biological traits of diatoms found therein. Water levels varied through its history, with the lake occasionally becoming bog-like. Most of the time, the lake reached depths of only a few meters, and it was a calm water body. Radiocarbon dating shows that shallowing occurred in the middle Holocene between 4,700 - 3,700 BP, coinciding with the mid-Holocene lowstand of Lake Titicaca. Afterwards lake levels increased until 3,000 BP; subsequently a lake level drop becomes noticeable by 1,000 BP and about 700 years before present the lake finally drained to the Salar de Coipasa, for reasons unknown although it is possible that the Rio Cancosa at that point breached the lake basin. Presently, a few salt lakes occur in the Cancosa basin. The , which forms at the confluence of the and , drains the basin today. These rivers cut into the lake sediments and are the only perennial rivers today in the area. The Cancosa River ultimately drains into the Salar de Coipasa. The lake featured a diverse diatom flora, with over 98 taxa represented. Among the most common taxa found in lake deposits are , and . Most diatoms identified are periphytic and there are no planktonic species. The lake was sometimes eutrophic and sometimes not, which may reflect volcanic influence on its waters. (en)
prov:wasDerivedFrom	wikipedia-en:Cancosa_paleolake?oldid=1021906177&ns=0
page length (characters) of wiki page	4333 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Cancosa_paleolake
geo:geometry	POINT(-68.666664123535 -19.833333969116)
is Link from a Wikipage to another Wikipage of	List of prehistoric lakes Sillajhuay
is foaf:primaryTopic of	wikipedia-en:Cancosa_paleolake

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