Dissolved aluminum in the Mediterranean

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Geochimica et Cosmochimica Acta; (USA)

DOI:https://doi.org/10.1016/0016-7037(88)90190-1· OSTI ID:7266034

Hydes, D J ^[1]; De Lange, G J; De Baar, H J.W. ^[2]

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1. Institute of Oceanographic Sciences Deacon Lab., Surrey (England)
2. Univ. of Utrecht (Netherlands)

Three vertical profiles of dissolved Al and nutrients are reported from the eastern basin of the Mediterranean. Profiles of Al concentrations resemble those of the nutrient elements, except that a proportionally higher residual concentration remains in the surface layer. Concentrations of Al in the surface water inflow from the North Atlantic, which contains between 10 and 20 nM around Gibraltar, are elevated to 55, 59 and 75 nM at the stations occupied. Calculations indicate that these concentrations are probably produced by dissolution Al from aeolian dust and advective mixing of Al-rich deep waters into the surface layer, balance by a biologically-associated removal process. The Al removed from the surface layer redissolves in the deep water to raise Al concentrations to about 160 nM. Samples were also recovered from anoxic deep brines in the Tyro and Bannock basins. In the brines, Al concentrations fall to about 15 nM while Si concentrations approach 270 nM.

• OSTI ID: 7266034
• Journal Information: Geochimica et Cosmochimica Acta; (USA), Journal Name: Geochimica et Cosmochimica Acta; (USA) Vol. 52:8; ISSN GCACA; ISSN 0016-7037
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
58 GEOSCIENCES
580000* -- Geosciences
BRINES
CHEMICAL COMPOSITION
CHEMISTRY
DISSOLUTION
GEOCHEMISTRY
GEOLOGIC STRUCTURES
HYDROGEN COMPOUNDS
MEDITERRANEAN SEA
NUTRIENTS
OXYGEN COMPOUNDS
SEAS
SEAWATER
SEDIMENTARY BASINS
SURFACE WATERS
WATER
WATER CHEMISTRY