Late-Variscan multistage hydrothermal processes unveiled by chemical ages coupled with compositional and textural uraninite variations in W-Au deposits in the western Spanish Central System Batholith

Owners :

GeologicaActa

Created:

2019-07-18

The scheelite skarn from Los Santos and the W-Au veins from El Cabaco district, located in the Spanish Central System Batholith (SCSB), are some of the best-known tungsten ore deposits in Spain. Uraninite is an accessory mineral in both deposits, which underwent several hydrothermal flow events. Chemical and textural characteristics, as well as electron microprobe U-Th-Pb uraninite chemical data from the different stages of the skarn and the vein-type mineralizations, are presented here. Based on these data the uraninite was able to be classified into two groups. Group I uraninite has an octahedral habit and occurs as inclusions in K-feldspar relicts of the leucogranite related to Los Santos skarn formation. It shows high Th (6.95 to 8.51wt.% ThO2) and high Rare Earth Elements (REEs) contents (0.55 to 1.38wt.% ∑REE2O3).

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Owners :

mkfelippe

Created:

2019-11-07

Permainan Kartu

Owners :

villa88

Created:

2019-11-09

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Tiles

Owners :

manueld

Created:

2019-11-12

Ceramic Tile industry Latest Breaking News, Pictures, Videos, and Special Reports from The Economic Times. Ceramic Tile industry

Recovery Data

Owners :

kmi

Created:

2019-11-13

Data recovery is a procedure for recovering data from a computer's hard drive that has been lost due to system failure or mechanical malfunction. Data recovery can also be used to recover data that has been accidentally overwritten or erased on a computer. There are companies and individuals who specialize in data recovery, and programs that try to extract data from computers that still have some level of performance, and many do-it-yourself recovery techniques.