Defining a base metal mineral systems footprint in the Edmund Basin of the Capricorn Orogen, Western Australia

Research output: ThesisDoctoral Thesis

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Abstract

The polymetallic -1590 Ma Abra deposit is hosted within 1680-1450 Ma sediments and is concealed under thick weathered regolith. The deposit was investigated as a natural laboratory to define the size and geometry of multi-scale footprints associated with mineral systems. Deep crustal-scale basement structures beneath the deposit form a triple-junction that is overlain by a vertically zoned mineral footprint containing white mica, chlorite and carbonate. Hydrothermally altered overlying sediments indicate that deposit formed through sub-seafloor replacement. The mineral footprint of the deposit has been preserved through weathering and was mapped at the surface from ground-truthed remote sensing data.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date27 Jul 2018
DOIs
Publication statusUnpublished - 2018

Fingerprint

base metal
footprint
mineral
basin
triple junction
regolith
mica
sediment
chlorite
seafloor
weathering
replacement
remote sensing
carbonate
geometry

Cite this

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title = "Defining a base metal mineral systems footprint in the Edmund Basin of the Capricorn Orogen, Western Australia",
abstract = "The polymetallic -1590 Ma Abra deposit is hosted within 1680-1450 Ma sediments and is concealed under thick weathered regolith. The deposit was investigated as a natural laboratory to define the size and geometry of multi-scale footprints associated with mineral systems. Deep crustal-scale basement structures beneath the deposit form a triple-junction that is overlain by a vertically zoned mineral footprint containing white mica, chlorite and carbonate. Hydrothermally altered overlying sediments indicate that deposit formed through sub-seafloor replacement. The mineral footprint of the deposit has been preserved through weathering and was mapped at the surface from ground-truthed remote sensing data.",
keywords = "mineral footprint, reflectance spectra, mineral systems, weathering, sediment-hosted, hydrothermal alteration, base-metal deposit, crustal architecture",
author = "Heta Lampinen",
year = "2018",
doi = "10.26182/5b6d0a4986fe6",
language = "English",
school = "The University of Western Australia",

}

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PY - 2018

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AB - The polymetallic -1590 Ma Abra deposit is hosted within 1680-1450 Ma sediments and is concealed under thick weathered regolith. The deposit was investigated as a natural laboratory to define the size and geometry of multi-scale footprints associated with mineral systems. Deep crustal-scale basement structures beneath the deposit form a triple-junction that is overlain by a vertically zoned mineral footprint containing white mica, chlorite and carbonate. Hydrothermally altered overlying sediments indicate that deposit formed through sub-seafloor replacement. The mineral footprint of the deposit has been preserved through weathering and was mapped at the surface from ground-truthed remote sensing data.

KW - mineral footprint

KW - reflectance spectra

KW - mineral systems

KW - weathering

KW - sediment-hosted

KW - hydrothermal alteration

KW - base-metal deposit

KW - crustal architecture

U2 - 10.26182/5b6d0a4986fe6

DO - 10.26182/5b6d0a4986fe6

M3 - Doctoral Thesis

ER -