A new hammer-driven freeze corer

被引：6

作者：

Miskimmin, BM ^{[1
]}

Curtis, PJ ^{[1
]}

Schindler, DW ^{[1
]}

Lafaut, N ^{[1
]}

机构：

[1] UNIV ALBERTA,DEPT SCI BIOL,EDMONTON,AB T6G 2E9,CANADA

来源：

JOURNAL OF PALEOLIMNOLOGY | 1996年 / 15卷 / 03期

关键词：

freeze coring system; sediments; mountain lakes; corers; paleolimnology;

D O I：

10.1007/BF00213045

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A shortcoming of freeze corers has been the inability to collect long cores in stiff sediments. We describe a hammer-driven freeze corer that collects undisturbed sediment cores up to 1.3 m in length in stiff or soft lake sediments. The corer was tested in prairie, montane and alpine lakes of western Canada. For these stiff sediments, conventional (gravity-only) freeze coring methods collected cores ranging from 25-59 cm compared with 100-124 cm for our hammer-driven device. The maximum length of cores could exceed 1.3 m if a longer core barrel was constructed.

引用

页码：265 / 269

页数：5