The fluorspar deposits of Asturias (N Spain): insights from REE and Sr isotope data

被引：0

作者：

Sanchez, V. ^{[1
]}

Vindel, E. ^{[1
]}

Cardellach, E.

Corbella, M.

Martin-Crespo, T.

机构：

[1] Univ Complutense Madrid, Dept Cristalog & Mineral, Fac Geol, E-28040 Madrid, Spain

来源：

DIGGING DEEPER, VOLS 1 AND 2: DIGGING DEEPER | 2007年

关键词：

fluorite; Rare Earth Elements; Sr isotopes; Asturias; hydrothermal;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

REE in fluorite from Asturias show different content and distribution patterns from east (Berbes) to west (Villabona). The linear trend of the data in a Tb/Ca vs. Tb/La diagram hints at crystallization from a single hydrothermal event, Berbes being the early stage and Villabona occurring later. (87)Sr/(86)Sr ratios of fluorite are distinct in each area and vary from 0.70802 to 0.71052. This is consistent with the presence of two Sr sources: seawater of Lower Jurassic age and a more radiogenic source of basinal origin that interacted with basement rocks. REE patterns and Tb/Ca ratios are compatible with the presence of a unique hydrothermal system that probably flowed from east to west leaching different rocks during early Jurassic times.

引用

页码：1307 / 1310

页数：4

共 34 条

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Corbella, M.
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JOURNAL OF GEOCHEMICAL EXPLORATION, 2006, 89 (1-3) : 348 - 350
[2] Variability in fluid sources in the fluorite deposits from Asturias (N Spain): Further evidences from REE, radiogenic (Sr, Sm, Nd) and stable (S, C, O) isotope data
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