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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10504 - Mineralogy

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Mineralium Deposita

ISSN

0026-4598

e-ISSN

—

Volume of the periodical

53

Issue of the periodical within the volume

4

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

531-545

UT code for WoS article

000427875000006

EID of the result in the Scopus database

2-s2.0-85025109110