SWS Academic Research eLibraryEarth & Planetary Sciences

Scholarly record

ISOTOPE RATIO 87SR/86SR IN NICKEL ORE OF THE URALIAN SUPERGENE DEPOSITS AND THEIR GENESIS

I.V. Talovina, N.I. Vorontsova, M.Tichomirova

First published: 2017-06-20https://doi.org/10.5593/sgem2017/11/s01.035View metrics

Abstract

Genesis of the Uralian oxide-silicate supergene nickel deposits remains disputable. There are supergene and polygenic hypogenous model of their origin. The second model usually involves supergene and hydrothermal-hypogenous stages of formation. To solve this problem isotope ratio 87Sr / 86Sr was determined for the first time for the Ufalei and Sakhara supergene nickel deposits. The obtained data on the 87Sr / 86Sr isotopic ratio in samples from ore zones are divided into two groups, which indicate two sources of strontium and the participation of several genetic processes in the formation of nickel rocks of the deposits. All samples of serpentinized rocks are on the level of 87Sr / 86Sr = 0.706-0.707, that indicates a single source of strontium for them, and these ratios are closer to mantle ones, compared with exogenous quartz-goetite rocks of the iron-oxide zone. In both deposits 87Sr / 86Sr ratio increases from low-altered hypogenous serpentinite rocks of the lower part of the deposits (0,70583 and 0,70687) to exogenous iron-oxide rocks of the upper part of the deposits (0,70917 and 0,71004). The average obtained 87Sr / 86Sr ratio in the Sakhara deposit (0, 70838) is higher than in the Ufalei deposit (0, 70697), that indicates a greater influence of exogenous processes on the formation of the weathering profile of the Sakhara deposit.

Publication Impact Profile

PlumX
  • Captures
  • Mendeley - Readers: 1
PLUMX see details

Publication details

Title
ISOTOPE RATIO 87SR/86SR IN NICKEL ORE OF THE URALIAN SUPERGENE DEPOSITS AND THEIR GENESIS
Authors
I.V. Talovina, N.I. Vorontsova, M.Tichomirova
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publisher
STEF92 Technology
Year
2017
Pages
277-282
SWS Citekey
Talovina20171277282
ISSN
1314-2704
ISBN
978-619-7105-98-8
Language
en
Publication type
Conference Paper
Keywords
isotope ratio 87Sr/86Sroxide-silicate nickel oresweathering crustthe Ufalei depositthe Sakhara deposit
References0
0references registered for this publication

Structured references will appear here after the reference import pass. The count is preserved now so the scholarly record is not incomplete.

View or Download full articleAccess options
Full paper accessChoose SWS login, librarian support, or instant article download.

SWS access login

Login as SWS Scientific Committee

Authors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.

For librarian assistance: [email protected]

Purchase Instant Access

48-hour online accessComing soon
Online-only accessComing soon
Download the full article in PDF formatEUR 35
  • Article can be downloaded after successful payment.
  • Article may be used according to SWS library access terms.
  • Article cannot be redistributed.
Get full paper

Back to publication list