| Djupadal Formation | |
|---|---|
| Stratigraphic range: Latest Pliensbachian- Latest Toarcian ~A Volcanic neck suggest 176.7 ± 0.5 Ma, Late Toarcian Age | |
 About 10 m south of the shore of the Korsaröd lake exposed layers of the unit are known | |
| Type | Formation |
| Unit of | Central Skåne Volcanic Province |
| Sub-units | (in part) Sapropel at Sandåkra |
| Underlies | Cuaternary Sediments |
| Overlies | Höör Sandstone, Brandsberga and Kolleberga erratics and (in part) Sapropel at Sandåkra |
| Thickness | Up to 60 m (200 ft)[1] |
| Lithology | |
| Primary | Basalt Tuff, Veined Gneiss[1] |
| Other | Sandstone, Clay and Conglomerate |
| Location | |
| Coordinates | 55°59′N 13°38′E / 55.98°N 13.63°E |
| Approximate paleocoordinates | Approx. 35°N |
| Region | Central Skåne County |
| Country |  Sweden |
| Extent | 1,000 km2 (390 sq mi) |
| Type section | |
| Named for | Djupadalsmölla, Ljungbyhed |
| Named by | Carita Augustsson[2] |
| Year defined | 2001 |
  Djupadal Formation (Sweden) Korsaröd Lagerstätten Location | |
The Djupadal Formation is a geologic formation in Skåne County, southern Sweden. It is Early Jurassic (probably Pliensbachian-Toarcian, or Late Toarcian) in age. It is part of the Central Skåne Volcanic Province, know by the discovery of basalt tuff layers, including Sandåkra, Korsaröd and Djupadal.
An original analysis of the location of Korsaröd led to a Toarcian-Aalenian age,[3][4][5] but was dismissed in 2016, when a series of Palynogical samples recovered a Late Pliensbachian and probably Lower Toarcian age for the Korsaröd Outcrop.[6] The same year this result was also challenged by an in-depth study of the Lilla Hagstad neck that yield a Late Toarcian Age.[7]
The formation was deposited in the Central Skane region, linked to the late early Jurassic volcanism. The Korsaröd member includes a volcanic-derived Lagerstatten with exceptional fern finds.[8] The data provided by fossilized wood rings showed that the location of Korsaröd hosted a middle-latitude Mediterranean-type biome in the late Early Jurassic, with low rainfall ratio, delayed to seasonal events. Superimposed on this climate were the effects of a local active Strombolian Volcanism and hydrothermal activity.[9]
- ^ a b Lidmar-Bergström, Olsson, & Olvmo (1997) p. 98
- ^ Augustsson (2001) p. 23
- ^ Tralau (1973) p. 128
- ^ Cite error: The named reference
Saprowas invoked but never defined (see the help page). - ^ Sivhed (1984) p. 26
- ^ Vajda, Linderson & McLoughlin (2016) p. 127
- ^ Tappe, Smart, Stracke, Romer, Prelević & van den Bogaard (2016) p. 30
- ^ Vajda, Linderson & McLoughlin (2016) p. 128
- ^ Vajda, Linderson & McLoughlin (2016) p. 141