SUSPENDED BARITE AS A TRACER OF BIOLOGICAL-ACTIVITY IN THE SOUTHERN-OCEAN

被引：107

作者：

DEHAIRS, F

STROOBANTS, N

GOEYENS, L

机构：

[1] Vrije Universiteit Brussel, Analytische Scheikunde (ANCH), Brussels, B-1050

来源：

MARINE CHEMISTRY | 1991年 / 35卷 / 1-4期

关键词：

D O I：

10.1016/S0304-4203(09)90032-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

During two cruises in the Southern Ocean (INDIGO 3, Indian sector and EPOS 2, Scotia-Weddell Confluence) suspended matter samples were collected for analysis of several biogenic elements including Ba, Si and particulate organic carbon (POC). The good agreement between particulate barium in subsurface water with oxygen minimum concentrations as well as with nitrate depletions suggests that it reflects the intensity of new production over the past season. As a consequence of new production in the Southern Ocean being performed mainly by diatoms, the occurrences of barite and diatoms are related in the water column. In areas characterized by diatom-poor phytoplankton, barite does occur, but in lower concentrations.

引用

页码：399 / 410

页数：12

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