Pautas de distribución de Sr/Ca, Mg/Ca y Mn/Fe en carbonatos urgonianos del oeste de Vizcaya (España).

  1. Yusta Arnal, Iñaki
  2. Herrero Rubio, José Miguel
  3. Velasco Roldán, Francisco
Aldizkaria:
Geogaceta

ISSN: 0213-683X

Argitalpen urtea: 1991

Zenbakia: 10

Orrialdeak: 100-103

Mota: Artikulua

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Beste argitalpen batzuk: Geogaceta

Laburpena

The distribution patterns of Ca, Si, Sr, Mn, Mg and Fe in Urgonian carbonate rocks from NW Biscay (Spain), revea/ the differences between shallow-water (270 ppm Sr, 62 ppm Mn) and deepwater (820 ppm Sr, 116 ppm Mn) limestones. Fresh water diagenesis is responsible for the deplection in molar Sr/Ca ratios (0,034 x 10—2 in platform carbonates). Some facies show diagenetic-hydrothermal dolomitization and Zn-Pb enrichment. Ferroan and calcian dolomites have Iow Sr and Mn contents

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