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
收藏
页码：1307 / 1310
页数：4
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