Structural, stratigraphic and temporal constraints of gold mineralization in the Bigar Hill deposit, Timok region, Serbia
department or school: Science, Faculty of
department or school: Earth, Ocean and Atmospheric Sciences, Department of
data provider: DSpace
degree campus: UBCV
creator: Zivanovic, Jelena
issued: 2019-05-08T21:28:23Z
issued: 2019
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: The Timok Magmatic Complex (TMC) is a well-endowed mineral district in Serbia that hosts world-class Cu-Au porphyry (Majdanpek, Veliki Krivelj, Borska Reka) and high-sulfidation deposits (Bor, Čukaru Peki). Recent exploration activities on the northwestern margin of the TMC have led to the discovery of the Bigar Hill sediment-hosted disseminated gold deposit (SHDG). It represents a previously unrecognized style of gold mineralization within the TMC and the Cretaceous metallogenic province of the western Tethyan orogenic belt - although they share many characteristics with the Carlin-type and distal disseminated gold deposits of Nevada, US. Gold distribution at Bigar Hill and associated hydrothermal mineralogical, geochemical and stable isotope alteration features were examined to reconstruct the structural and stratigraphic controls on hydrothermal fluid flow. The Bigar Hill stratigraphy encompasses Late Jurassic to Early Cretaceous limestone unconformably overlain by a calcareous clastic sedimentary sequence (unit S1). Late Cretaceous volcanic detritus-rich sandstone package (unit S2) unconformably overlies unit S1. Primary sparry carbonate cement, mainly ferroan calcite is characteristic features of both S1 and S2 units. Marl lies conformably over the S2 unit, and the andesitic sill intruded it. Gold mineralization is principally stratabound, located along two stratigraphic contacts. The contact zone between units S1 and S2 is a major mineralized horizon. The other mineralized corridor lies along the unconformable contact between limestone and the S1 siliciclastic rocks. Acidic hydrothermal fluids likely exploited the enhanced porosity and permeability of preserved weathering crusts, brecciated zones, and karst along the unconformities, further creating secondary porosity by dissolving host rock carbonate cement. Although stratigraphic features are considered highly influential on the spatial distribution of ore, the regional structural framework and syn-mineraliz…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/70128
note: Structural, Stratigraphic and Temporal Constraints of Gold Mineralization in the Bigar Hill Deposit, Timok Region, Serbia by Jelena Zivanovic BSc., Belgrade University, 2009 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in The Faculty of Graduate and Postdoctoral Studies (Geological Sciences) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) May 2019 © Jelena Zivanovic, 2019 ii The following individuals certify that they have read, and recommend to the Faculty of Graduate and Postdoctoral Studies for acceptance, a thesis/dissertation entitled: Structural, Stratigraphic and Temporal Constraints of Gold Mineralization in the Bigar Hill Deposit, Timok Region, Serbia submitted by Jelena Zivanovic in partial fulfillment of the requirements for the degree of Master of Science in Geological Sciences Examining Committee: Dr. Craig Hart, Geological Sciences Supervisor Dr. Kenneth Hickey, Geological Sciences Supervisory Committee Member Dr. Gregory Dipple, Geological Sciences Additional Examiner iii ABSTRACT The Timok Magmatic Complex (TMC) is a well-endowed mineral district in Serbia that hosts world-class Cu-Au porphyry (Majdanpek, Veliki Krivelj, Borska Reka) and high-sulfidation deposits (Bor, Čukaru Peki). Recent exploration activities on the northwestern margin of the TMC have led to the discovery of the Bigar Hill sediment-hosted disseminated gold deposit (SHDG). It represents a previously unrecognized style of gold mineralization within the TMC and the Cretaceous metallogenic province of the western Tethyan orogenic belt - although they share many characteristics with the Carlin-type and distal disseminated gold deposits of Nevada, US. Gold distribution at Bigar Hill and associated hydrothermal mineralogical, geochemical and stable isotope alteration features were examined to reconstruct the structural and stratigraphic controls on hydrothermal fluid flow. The Bigar Hill stratigraphy encompasses Late Jurassic to Early C…
has type: Thesis/Dissertation
date issued: 2019-09
is shown at: 10.14288/1.0378656
language: eng
degree discipline: Geological Sciences
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/70128