A remote controlled freeze corer for sampling unconsolidated surface sediments

被引：26

作者：

Lotter, AF ^{[1
]}

Renberg, I

Hansson, H

Stockli, R

Sturm, M

机构：

[1] Swiss Fed Inst Environm Sci & Technol, CH-8600 Dubendorf, Switzerland

[2] Umea Univ, Dept Environm Hlth, S-90187 Umea, Sweden

[3] HTH Tekn, S-95149 Lulea, Sweden

[4] Univ Bern, Geobot Inst, CH-3013 Bern, Switzerland

来源：

AQUATIC SCIENCES | 1997年 / 59卷 / 04期

关键词：

coring methods; freeze coring; soft bottom sediments; laminated sediments;

D O I：

10.1007/s000270050016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new coring device is presented which allows the recovery of loose watery surface sediments and the water/sediment interface by irt situ freezing, resulting in well preserved samples. The instrument consists of a tripod with adjustable legs, a hydraulic system, an insulated thermos (with two electrical pumps), and a wedge-shaped freeze box. Alcohol chilled with dry ice is the freezing agent. The corer can be deployed from a boat or a raft and permits recovery of undisturbed surface sediment sections up to 100 cm long in deep waters. The corer is particularly useful for sampling varved sediments.

引用

页码：295 / 303

页数：9

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