Lake type:

glacial lake

Category: mixed varves


104 m asl

Length of record:

9898 years

Archive type:

lacustrine sediments

Author of images:

Antti Ojala


Ojala, A.E.K. & Alenius, T., 2005. 10 000 years of interannual sedimentation recorded in the Lake Nautajärvi (Finland) clastic-organic varves. Palaeogeography, Palaeoclimatology, Palaeoecology 219, 285-302.

Link to reference or DOI:

Site images

Influx of catchment-derived minerogic matter into Lake Nautajärvi, Finland, in late-May 2010 > max. resolution

Clastic-biogenic varves from Nautajärvi, Finland. The basic structure of varves is very simple. Each varve consists of two layers, a light layer of mineral material and a dark layer of organic material (core: as4, cored in 2001 at a depth of 120 cm (ca. AD 100). > max. resolution

X-radiographic image of Lake Nautajärvi varves for 205-306 BC > max. resolution

Recent clastic-biogenic surface varves in Lake Nautajärvi cored with a Kajak-corer in 2011 > max. resolution