ANNUAL PERIODICITY OF THE O-18-O-16 AND C-13-C-12 RATIOS IN THE CORAL MONTASTREA-ANNULARIS

被引：214

作者：

FAIRBANKS, RG ^{[1
]}

DODGE, RE ^{[1
]}

机构：

[1] NOVA UNIV, CTR OCEAN SCI, DANIA, FL 33004 USA

来源：

GEOCHIMICA ET COSMOCHIMICA ACTA | 1979年 / 43卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0016-7037(79)90090-5

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The isotopic ratios 18O 16O and 13C 12C show an annual periodicity in the coral Montastrea annularis from Bermuda, Jamaica and Barbados. The abundances of 18O and 13C are positively correlated in the Jamaica and Barbados samples, but inversely related in the Bermuda sample. Annual high density growth bands are formed during the season of warmest water temperature at all 3 sites and are enriched in 16O. M. Annularis has a constant displacement from oxygen isotopic equilibrium and accurately records seasonal temperature variations via the temperature-dependent aragonite-water fractionation factor. Light intensity, through the activity of the coral's endosymbiotic algae, regulates the depth-dependent and seasonal variations in the skeletal carbon isotopic composition. © 1979.

引用

页码：1009 / +

页数：1

共 45 条

[1] IN-SITU STUDIES OF CALCIFICATION AND PHOTOSYNTHETIC CARBON FIXATION IN CORAL MONTASTREA-ANNULARIS [J].