Fauna and flora in submarine early-Holocene lake-marl deposits from the southwestern Baltic Sea

被引：16

作者：

Bennike, O

Lemke, W

Jensen, JB

机构：

[1] Geol Survey Denmark & Greenland, DK-2400 Copenhagen NV, Denmark

[2] Baltic Sea Res Inst, D-18119 Rostock, Germany

来源：

HOLOCENE | 1998年 / 8卷 / 03期

关键词：

Holocene; marl; chalk; plant macrofossils; mollusc; Baltic Sea;

D O I：

10.1191/095968398673688465

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Studies of plant and animal macrofossils have been carried out on early-Holocene lake marIs from the southwestern Baltic. The records have been dated to the interval from c. 8500 to 7800 C-14 years BP by correlating pollen assemblages to an onshore radiocarbon dated pollen diagram. The sediments contain from 5 to 81% carbonate, and only few macroscopic remains of wetland and terrestrial taxa. The plant and animal (mainly mollusc) macrofossils reflect deposition at the outer edge of the belt with submerged macro-limnophytes, in the lower littoral, perhaps at water depths at 4-7 m. The ratio between the shells and opercula of the snail Bithynia tentaculata points to some post-mortem disturbance, but it can be concluded that the water was highly alkaline and mesotrophic.

引用

页码：353 / 358

页数：6

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