Lithostratigraphic, structural and hydrothermal alteration controls on orogenic gold mineralization at the Karouni Deposit: Implications for deformation, magmatism and metallogeny in the Guiana Shield, South America

Michael Tyrrell Tedeschi

doi:10.26182/5c00acf6d274c

Lithostratigraphic, structural and hydrothermal alteration controls on orogenic gold mineralization at the Karouni Deposit: Implications for deformation, magmatism and metallogeny in the Guiana Shield, South America

Michael Tyrrell Tedeschi

School of Earth Sciences

Research output: Thesis › Doctoral Thesis

302 Downloads (Pure)

Abstract

The Karouni orogenic gold deposit is located in the Guiana Shield of South America and contains approximately 1.1 Moz of gold, hosted in Rhyacian aged volcano-sedimentary rocks. Structural, geochemical and isotopic analyses were carried out
to understand the controls and origins of gold mineralization and its place within the tectonic evolution of the region. These investigations revealed a complex magmatic-hydrothermal history beginning with juvenile continental crust formation at 2200 Ma, accretion and deformation of this crust at 2110-2090 Ma and formation of strike-slip shear zones with gold-bearing quartzcarbonate veins during the waning stages of the Trans-Amazonian Orogeny at 2084 Ma.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Hagemann, Steffen, Supervisor Kemp, Tony, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	12 Nov 2018
DOIs	https://doi.org/10.26182/5c00acf6d274c
Publication status	Unpublished - 2018

Access to Document

10.26182/5c00acf6d274c

THESIS - DOCTOR OF PHILOSOPHY - TEDESCHI Michael Tyrrell - 2018 - Part 1
THESIS - DOCTOR OF PHILOSOPHY - TEDESCHI Michael Tyrrell - 2018 - Part 2
This work is protected by Copyright. You may print or download ONE copy of this document for the purpose of your own non-commercial research or study. Any other use requires permission from the copyright owner. The Copyright Act requires you to attribute any copyright works you quote or paraphrase.

Fingerprint

Dive into the research topics of 'Lithostratigraphic, structural and hydrothermal alteration controls on orogenic gold mineralization at the Karouni Deposit: Implications for deformation, magmatism and metallogeny in the Guiana Shield, South America'. Together they form a unique fingerprint.

Cite this

@phdthesis{6713f736d4bd47efaa423afbf5379f34,

title = "Lithostratigraphic, structural and hydrothermal alteration controls on orogenic gold mineralization at the Karouni Deposit: Implications for deformation, magmatism and metallogeny in the Guiana Shield, South America",

abstract = "The Karouni orogenic gold deposit is located in the Guiana Shield of South America and contains approximately 1.1 Moz of gold, hosted in Rhyacian aged volcano-sedimentary rocks. Structural, geochemical and isotopic analyses were carried out to understand the controls and origins of gold mineralization and its place within the tectonic evolution of the region. These investigations revealed a complex magmatic-hydrothermal history beginning with juvenile continental crust formation at 2200 Ma, accretion and deformation of this crust at 2110-2090 Ma and formation of strike-slip shear zones with gold-bearing quartzcarbonate veins during the waning stages of the Trans-Amazonian Orogeny at 2084 Ma. ",

keywords = "Orogenic Gold, Paleoproterozoic, Guiana Shield, Geochronology, Guyana, Economic Geology, Trans-Amazonian Orogeny, Geochemistry",

author = "Tedeschi, {Michael Tyrrell}",

year = "2018",

doi = "10.26182/5c00acf6d274c",

language = "English",

school = "The University of Western Australia",

}

TY - BOOK

T1 - Lithostratigraphic, structural and hydrothermal alteration controls on orogenic gold mineralization at the Karouni Deposit: Implications for deformation, magmatism and metallogeny in the Guiana Shield, South America

AU - Tedeschi, Michael Tyrrell

PY - 2018

Y1 - 2018

N2 - The Karouni orogenic gold deposit is located in the Guiana Shield of South America and contains approximately 1.1 Moz of gold, hosted in Rhyacian aged volcano-sedimentary rocks. Structural, geochemical and isotopic analyses were carried out to understand the controls and origins of gold mineralization and its place within the tectonic evolution of the region. These investigations revealed a complex magmatic-hydrothermal history beginning with juvenile continental crust formation at 2200 Ma, accretion and deformation of this crust at 2110-2090 Ma and formation of strike-slip shear zones with gold-bearing quartzcarbonate veins during the waning stages of the Trans-Amazonian Orogeny at 2084 Ma.

AB - The Karouni orogenic gold deposit is located in the Guiana Shield of South America and contains approximately 1.1 Moz of gold, hosted in Rhyacian aged volcano-sedimentary rocks. Structural, geochemical and isotopic analyses were carried out to understand the controls and origins of gold mineralization and its place within the tectonic evolution of the region. These investigations revealed a complex magmatic-hydrothermal history beginning with juvenile continental crust formation at 2200 Ma, accretion and deformation of this crust at 2110-2090 Ma and formation of strike-slip shear zones with gold-bearing quartzcarbonate veins during the waning stages of the Trans-Amazonian Orogeny at 2084 Ma.

KW - Orogenic Gold

KW - Paleoproterozoic

KW - Guiana Shield

KW - Geochronology

KW - Guyana

KW - Economic Geology

KW - Trans-Amazonian Orogeny

KW - Geochemistry

U2 - 10.26182/5c00acf6d274c

DO - 10.26182/5c00acf6d274c

M3 - Doctoral Thesis

ER -