Oxygen-18 enrichment of planktonic foraminifera due to gametongenic calcification below the euphotic zone

Journal Article · Fri Sep 11 00:00:00 EDT 1981 · Science (Washington, D.C.); (United States)

OSTI ID:5575231

Duplessy, J C ^[1]; Blanc, P L; Be, A W.H.

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1. Commissariat a l'Energie Atomique, Gif-sur-Yvette, France

Empty shells of spinose planktonic foraminifera on the seabed are significantly enriched in oxygen-18 as compared with the shells of their living counterparts in surface waters. This enrichment is due to gametogenic calcification, which extracts calcium carbonate from deeper and colder waters as the shell sinks below the euphotic zone.

• OSTI ID: 5575231
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 213; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

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Aquatic-- Radioactive Materials Monitoring & Transport-- Aquatic Ecosystems & Food Chains-- (-1987)
54 ENVIRONMENTAL SCIENCES
550201* -- Biochemistry-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ALKALINE EARTH METAL COMPOUNDS
ANIMALS
AQUATIC ORGANISMS
BIOCHEMISTRY
BIOLOGICAL ACCUMULATION
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHEMICAL COMPOSITION
CHEMISTRY
COMPARATIVE EVALUATIONS
ECOLOGY
EVEN-EVEN NUCLEI
FORAMINIFERA
INVERTEBRATES
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
MICROORGANISMS
NUCLEI
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PLANKTON
PROTOZOA
SARCODINA
SEA BED
SHELLS
STABLE ISOTOPES
SURFACE WATERS