Pyrrhotite mineralization as a search criterion for sulfide deposits at sediment-covered spreading centers
- Authors: Bogdanova O.Y.1, Lein A.Y.1, Dara O.M.1, Ozhogina E.G.2, Lisitzin A.P.1
-
Affiliations:
- Shirshov Institute of Oceanology
- All-Russia Scientific-Research Institute of Mineral Resources
- Issue: Vol 470, No 1 (2016)
- Pages: 928-932
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/188861
- DOI: https://doi.org/10.1134/S1028334X16090038
- ID: 188861
Cite item
Abstract
Pyrrhotite ores forming the hydrothermal vents of the Hydrothermal Hills in the Southern Trough of the Guaymas depression were studied. A series of features pointing to the occurrence of surface and buried sulfide deposits of pyrrhotite mineralization was revealed: the presence of pyrrhotite associations to hydrocarbons of oil series; low concentrations of Cu, Zn, and Pb; the enrichment of sulfur of pyrrhotite and hydrogen sulfide of hydrothermal solutions in heavy 34S isotope by 5–7%; and the heavy isotope composition of carbon in naphthoid compounds. The results obtained allow one to suggest searching for large sulfide deposits at active rifts of high spreading and sedimentation rates, i.e., at near-continental rifts of the humid zone of avalanche sedimentation.
About the authors
O. Yu. Bogdanova
Shirshov Institute of Oceanology
Author for correspondence.
Email: olgabogdanova59@yandex.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218
A. Yu. Lein
Shirshov Institute of Oceanology
Email: olgabogdanova59@yandex.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218
O. M. Dara
Shirshov Institute of Oceanology
Email: olgabogdanova59@yandex.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218
E. G. Ozhogina
All-Russia Scientific-Research Institute of Mineral Resources
Email: olgabogdanova59@yandex.ru
Russian Federation, Staromonetny per. 31, Moscow, 109017
A. P. Lisitzin
Shirshov Institute of Oceanology
Email: olgabogdanova59@yandex.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218