Rare earth element systematics in hydrothermal fluids

Rare earth element concentrations have been measured in hydrothermal solutions from geothermal fields in Italy, Dominica, Valles Caldera, Salton Sea and the Mid-Atlantic Ridge. The measured abundances show that hydrothermal activity is not expected to affect the REE balance of either continental or...

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Veröffentlicht in:	Geochimica et cosmochimica acta 1989-03, Vol.53 (3), p.745-750
1. Verfasser:	Michard, Annie
Format:	Artikel
Sprache:	eng
Schlagworte:	152002 - Geothermal Data & Theory- Properties of Minerals & Rocks 580000 - Geosciences ABUNDANCE CALIFORNIA CHEMICAL COMPOSITION CHEMISTRY CONCENTRATION RATIO ELEMENT ABUNDANCE ELEMENTS ENERGY SYSTEMS EUROPE FEDERAL REGION IX FLUIDS GEOCHEMISTRY GEOSCIENCES GEOTHERMAL ENERGY GEOTHERMAL FLUIDS GEOTHERMAL SYSTEMS GEOTHERMOMETRY HYDROTHERMAL ALTERATION HYDROTHERMAL SYSTEMS IGNEOUS ROCKS ITALY LAKES METALS MID-ATLANTIC RIDGE NORTH AMERICA PETROCHEMISTRY RARE EARTHS ROCK-FLUID INTERACTIONS ROCKS SALTON SEA SURFACE WATERS USA WESTERN EUROPE
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Zusammenfassung:	Rare earth element concentrations have been measured in hydrothermal solutions from geothermal fields in Italy, Dominica, Valles Caldera, Salton Sea and the Mid-Atlantic Ridge. The measured abundances show that hydrothermal activity is not expected to affect the REE balance of either continental or oceanic rocks. The REE enrichment of the solutions increases when the pH decreases. High-temperature solutions (>230°C) percolating through different rock types may show similar REE patterns.
ISSN:	0016-7037 1872-9533
DOI:	10.1016/0016-7037(89)90017-3