The Kongsberg silver deposits,Norway: Ag-Hg-Sb mineralization and constraints for the formation of the deposits

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F18%3A00000100" target="_blank" >RIV/00025798:_____/18:00000100 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00126-017-0757-1" target="_blank" >https://link.springer.com/article/10.1007/s00126-017-0757-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00126-017-0757-1" target="_blank" >10.1007/s00126-017-0757-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Kongsberg silver deposits,Norway: Ag-Hg-Sb mineralization and constraints for the formation of the deposits

Popis výsledku v původním jazyce

The Kongsberg silver district has been investigatedby microscopy and electron microprobe analysis, focusing primarilyon the Ag-Hg-Sb mineralization within the context ofthe updated mineral paragenesis. The earliest mineralizationstage is represented by sulfides, including acanthite, andsulfosalts. Native silver formed initially through breakdownof early Ag-bearing phases and later through influx of additionalAg-bearing fluids and silver remobilization. The first twogenerations of native silver were separated in time by the formationof Ni-Co-Fe sulfarsenides and the monoarsenideniccolite along rims of silver crystals. The presence of As-freesulfosalts and the absence of di- and tri-arsenides suggest alower arsenic/sulfur activity ratio for the Kongsberg depositscompared to other five-element deposits. Native silver showsbinary Ag-Hg and Ag-Sb solid solutions, in contrast to theternary Ag-Hg-Sb compositions typical for other deposits ofsimilar type. Antimonial silver together with allargentum,dyscrasite, and pyrargyrite was documented exclusively fromthe northern area of the district. Elsewhere, the only Sb-bearingminerals are polybasite and tetrahedrite/freibergite. Hg-rich silver(up to 21 wtpercent Hg) has been documented only in thecentral-western area. Myrmekite of freibergite and chalcopyritereflects exsolution from an original Ag-poor tetrahedrite uponcooling, while myrmekite of pyrite and silver, forming throughbreakdown of low-temperature phases (argentopyrite orlenaite) upon heating, characterizes the Kongsberg silver district.Based on the stabilities of minerals and mineral assemblages,the formation of the silver mineralization can beconstrained to temperatures between 180 and 250 °C.

Název v anglickém jazyce

The Kongsberg silver deposits,Norway: Ag-Hg-Sb mineralization and constraints for the formation of the deposits

Popis výsledku anglicky

The Kongsberg silver district has been investigatedby microscopy and electron microprobe analysis, focusing primarilyon the Ag-Hg-Sb mineralization within the context ofthe updated mineral paragenesis. The earliest mineralizationstage is represented by sulfides, including acanthite, andsulfosalts. Native silver formed initially through breakdownof early Ag-bearing phases and later through influx of additionalAg-bearing fluids and silver remobilization. The first twogenerations of native silver were separated in time by the formationof Ni-Co-Fe sulfarsenides and the monoarsenideniccolite along rims of silver crystals. The presence of As-freesulfosalts and the absence of di- and tri-arsenides suggest alower arsenic/sulfur activity ratio for the Kongsberg depositscompared to other five-element deposits. Native silver showsbinary Ag-Hg and Ag-Sb solid solutions, in contrast to theternary Ag-Hg-Sb compositions typical for other deposits ofsimilar type. Antimonial silver together with allargentum,dyscrasite, and pyrargyrite was documented exclusively fromthe northern area of the district. Elsewhere, the only Sb-bearingminerals are polybasite and tetrahedrite/freibergite. Hg-rich silver(up to 21 wtpercent Hg) has been documented only in thecentral-western area. Myrmekite of freibergite and chalcopyritereflects exsolution from an original Ag-poor tetrahedrite uponcooling, while myrmekite of pyrite and silver, forming throughbreakdown of low-temperature phases (argentopyrite orlenaite) upon heating, characterizes the Kongsberg silver district.Based on the stabilities of minerals and mineral assemblages,the formation of the silver mineralization can beconstrained to temperatures between 180 and 250 °C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10504 - Mineralogy

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mineralium Deposita

ISSN

0026-4598

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

531-545

Kód UT WoS článku

000427875000006

EID výsledku v databázi Scopus

2-s2.0-85025109110