ACCUMULATION OF SUSPENDED BARITE AT MESOPELAGIC DEPTHS AND EXPORT PRODUCTION IN THE SOUTHERN-OCEAN

被引：102

作者：

DEHAIRS, F

BAEYENS, W

GOEYENS, L

机构：

[1] Analytical Chemistry Department, Vrije Universiteit Brussel, B-1050 Brussels

来源：

SCIENCE | 1992年 / 258卷 / 5086期

关键词：

D O I：

10.1126/science.258.5086.1332

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The relation between the accumulation of barite (BaSO4) microcrystals in suspended matter from the mesopelagic depth region (100 to 600 meters) and the type of production in the euphotic layer (new versus recycled) was studied for different Southern Ocean environments. Considerable subsurface barite accumulated in waters characterized by maintained new production and limited grazing pressure during the growth season. On the other hand, little if any barite accumulated in areas where relatively large amounts of photosynthetically fixed carbon were transferred to the microheterotrophic community and where recycled production became predominant.

引用

页码：1332 / 1335

页数：4

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