Submerged forest

Divers Beesham Soogrim and Arne Sjöström surveying the submerged forest at Haväng, Hanö bay, southern Sweden. In the film you can see old trunks and stumps from pine trees that grew in the Verke river valley during the early mesolithic. Stumps at 13 m have been radiocarbon dated by Gaillard & Lemdahl to c. 10.800 years before present (calibrated). The high banks, which look like rocks, are made of detritus mud that deposited in the old river valley when it was flooded. At the end of the film you can see parts of a fish trap (trap no 1) in the eroded mud bank. It is constructed of long thin hazel stems that have been radiocarbon dated by Jan Öijeberg, Malmö museer, to c. 9000 years before present (calibrated). In the film "Mesolithic fish trap" you can see another trap that I found in the same area.
Filmed by Arne Sjöström.

Category:

Science & Technology

Tags:

• Haväng
• Skåne
• Scania
• Sweden
• Mesolithic
• mesolitikum
• Stone age
• stenålder
• Sunken forest
• Pine tree
• tall
• stump
• stubbe
• trunk
• submerged forest
• fish trap
• diving
• scuba diving
• mud
• gyttja
• Canon 500D
• Ikelite

[marcopenne]

The diver is Beesham Soogrim, filmed by Arne Sjostrom.

[marcopenne]

Very clear image at this depth. Well done. If possible, please consider adding some information (sound or text) to make the viewing experience more interesting. (e.g. about what is known of that forest, the 900 yrs old fish trap, etc.). Thanks.