Sedimentation and Accumulation of Elements in the Vydrino Peat Bog (Southern Baikal Region)

被引：3

作者：

Bogush, A. A. ^{[1
]}

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

Klimin, M. A. ^{[2
]}

Bychinskii, V. A. ^{[3
]}

Leonova, G. A. ^{[1
]}

Krivonogov, S. K. ^{[1
,4
]}

Kondrat'eva, L. M. ^{[2
]}

Preis, Yu. I. ^{[5
]}

机构：

[1] Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Far Eastern Branch, Inst Water & Environm Problems, Ul Dikopoltseva 56, Khabarovsk 680000, Russia

[3] Russian Acad Sci, Siberian Branch, AP Vinogradov Inst Geochem, Ul Favorskogo 1a, Irkutsk 664033, Russia

[4] Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia

[5] Russian Acad Sci, Siberian Branch, Inst Monitoring Climat & Ecol Syst, Akad Skii Pr 10, Tomsk 634055, Russia

来源：

RUSSIAN GEOLOGY AND GEOPHYSICS | 2019年 / 60卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

peat bog; concentration of elements; genesis; rate of peat accumulation; pigment profile; geochemical modeling; Holocene; East Siberia; ATMOSPHERIC LEAD; JURA MOUNTAINS; DEPOSITION; PB; ZR; TI;

D O I：

10.15372/RGG2019012

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The evolution of peat deposits of the Vydrino bog (southern Baikal region) and concentration of elements in them are discussed. The bog peat massif more than 4 m in thickness formed mostly during the Holocene. The beginning of peat formation dates back to the late Allerod (13.1 ka). At present, the Vydrino bog is a biogeocoenosis of the high-moor type with a transitional peat deposit. We have established that the bog nonuniformly accumulated chemical elements during its formation. Concentration of Pb, Sn, Cd, Zn, and Sb in recent vegetation and in the upper layer of the peat bog is mainly due to forest fires and anthropogenic air pollution. The anomalous enrichment of peat with Zn and Cu in the Early Holocene (12.1-8.8 ka) horizons proceeded through the periodic inflow of thermal groundwater into the bottom part of the peat deposit. Authigenic Zn and Cu sulfides formed on the inner membrane of the cell wall of sphagnum moss. Geochemical modeling has shown that Zn and Cu sulfides can form abiotically.

引用

页码：163 / 175

页数：13

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