First lake record of Holocene climate and vegetation change of the Northern Kuril Islands

被引：7

作者：

Lozhkin, A. V. ^{[1
]}

Anderson, P. M.

Goryachev, N. A. ^{[1
]}

Minyuk, P. S. ^{[1
]}

Pakhomov, A. Yu. ^{[1
]}

Solomatkina, T. B. ^{[1
]}

Cherepanova, M. V. ^{[2
]}

机构：

[1] Russian Acad Sci, Far E Div, NE Complex Sci & Res Inst, Magadan, Russia

[2] Russian Acad Sci, Far E Div, Inst Biol & Soil Sci, Vladivostok 690022, Russia

来源：

DOKLADY EARTH SCIENCES | 2010年 / 430卷 / 02期

基金：

美国国家科学基金会;

关键词：

NORTHWESTERN PACIFIC; HISTORY;

D O I：

10.1134/S1028334X1002011X

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Investigation of Pernatoe Lake sediments in the south of Paramushir Island has enabled us to obtain the first continuous pollen record of climate and vegetation changes in the north of the Kurile archipelago during the Holocene. Series of radiocarbon datings of between 10 000 +/- 40 and 2180 +/- 40 years ago are evidence that the beginning of sediments accumulation, found after borehole development, is related to the Early Holocene. Diatom analysis has shown several stages in the lake development: raised bog on the border of the Pleistocene and Holocene, lagoon formation resulting from the sea level rise over 9-6 ky, and freshwater lake formation 6 ky and up to the present. Climate warming during the period attributed to the boreal and Atlantic periods of the Holocene is reflected by the dominance of Pinus pumila and Alnus serrulata assemblages in vegetation cover. Wide dune fields were formed in the Sea of Okhotsk and the Pacific shores of Paramushir Island 5-4 ky. Strengthening of atmogenic processes is related to cooling of the climate and drying of some areas of the underwater slope.

引用

页码：198 / 200

页数：3

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