Other
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985minde..20...69r&link_type=abstract
Mineralium Deposita, Volume 20, Issue 2, pp.69-75
Other
3
Scientific paper
Strata-bound antimony, mercury, tungsten and massive sulfide mineralization occurs within a metamorphosed Paleozoic volcanosedimentary sequence in the Kreuzeck Mountains, Austria. Amphibolites are a significant constituent of that sequence; on the basis of stable trace element data, they can be classified as metamorphic equivalents of recent olivine tholeiites. In the ore environment of strata-bound mineralization, intensive alteration associated with submarine hydrothermal activity has affected the wall rocks. This includes depletion in SiO2, a change in the oxidation stage of iron and pronounced enrichment in Na, Sr, Ba and CO2. Microprobe analyses reveal lower MgO content in chlorites and higher Na2O content in feldspars in rocks from the ore environment. Hydrothermal halos are thus documented by changes in mineral and whole-rock compositions and represent guides to exploration.
Reimann Clemens
Stumpfl Eugen F.
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