title: Indicator typomorphic features and potential sources of small-size placer gold from the Ebelyakh area (northeast Siberian platform)
metadata.name: dc.contributor.author
metadata.value: Gerasimov, Boris B.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2018-10-23T15:20:04Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2018-10-23T15:20:04Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2018-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Gerasimov B. B. Indicator typomorphic features and potential sources of small-size placer gold from the Ebelyakh area (northeast Siberian platform). Vestnik of Saint Petersburg University. Earth Sciences, 2018, vol. 63, issue 3, pp. 291–302.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: 10.21638/spbu07.2018.303
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/14974
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: In order to detect potential sources studied are mineralogical-geochemical special features of
  the Billyakh River gold placer which belongs to the Ebelyakh diamondiferous area. It is shown
  that the main sources for the gold are auriferous reservoir rocks of Neogene-Quaternary age.
  The indicator typomorphic features of the gold include small size (less than 0.5 mm), scaly
  and platy forms, rough shagreen surface with casts of pressing minerals, and high fineness
  (900–999 ‰). The most highly informative feature is a strongly modified internal structure of
  the gold showing evidence of granulation and recrystallisation. Unrounded gold particles are
  also found in the study area, which suggests proximity of a primary source. They are characterized
  by a very small size (less than 0.2 mm), angular-cloddy forms, rough, porous surface,
  widely ranging fineness (535 to 999 ‰), heterogeneous chemical composition, and a complex,
  multi-phase internal structure. A potential primary source is predicted to be localized at the
  intersection of N—S and F—W-treading fault zones in the upper Billyakh River. This prediction
  is supported by the discovery in the river basin of Ebelyakh to disseminate gold-sulfide
  mineralization confined to the N—S-trending fault zone.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Исследования выполнены по плану НИР ИГАБМ СО РАН, проект № 0381-2016-0004.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 63; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: northeast Siberian platform
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Ebelyakh diamondiferous area
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: placer gold
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: indicator typomorphic features of gold
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: multi-phase gold
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: fineness
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: internal structures of gold
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: intermediate reservoir rocks
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: unrounded gold
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: primary source
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: fault zone
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Indicator typomorphic features and potential sources of small-size placer gold from the Ebelyakh area (northeast Siberian platform)
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 03-Gerasimov.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/14974/1/03-Gerasimov.pdf
resources.format: Adobe PDF
resources.size: 3,83 MB