New developments in laser Rb–Sr dating and their application in exploring Proterozoic sedimentary basins — an example from the northern Stuart Shelf, South Australia.
Created: 08 Nov 2024 Revised: 19 Dec 2024

Exploration for Proterozoic sedimentary-hosted mineral and energy resources can greatly benefit from geochronological methods that date the depositional age of sedimentary rocks that predate the Early Cambrian evolution of biomineralizing...

Exploration for Proterozoic sedimentary-hosted mineral and energy resources can greatly benefit from geochronological methods that date the depositional age of sedimentary rocks that predate the Early Cambrian evolution of biomineralizing organisms. Previously, the lack of such methods made intra-basin (let alone extra-basin) correlation difficult and hindered the development of sequence-stratigraphic models that form a major parameter in any mineral system analysis. In addition, the lack of accurate and reasonably precise age constraints makes it hard to reconstruct the evolution of the earth-surface systems (biosphere, hydrosphere and atmosphere) that make our planet habitable to large metazoans such as ourselves. New developments in laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICPMS), using a reaction-cell embedded within the instrument that is bracketed by two separate mass spectrometers (LA-ICPMS/MS), has allowed a resurgence in geochronology that uses beta-decay radiometric systems, such as Rb–Sr, Lu–Hf, Re–Os and even K–Ca.

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About this record

Record No mesac30698
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - MESA Journal
Contributor
Sponsor
Tenement
Tenement Holder
Operator
Geological Province Stuart Shelf
Mine Name
Stratigraphy
Commodity
    Notes
    Doc No: MESAJ 098 p: 001-008
    Drillhole: WC05D001;(21004)

    Doc No: MESAJ 098 p: 001-008 Drillhole: WC05D001;(21004)

    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/mesac30698
    Citation Collins, A.S.;Blades, M.L.;Krapf, C.B.E.;Gilbert, S.;Preiss, W.;Fabris, A. New developments in laser Rb–Sr dating and their application in exploring Proterozoic sedimentary basins — an example from the northern Stuart Shelf, South Australia. Departmental Publication - Mesa Journal. Government of South Australia.
    https://pid.sarig.sa.gov.au/document/mesac30698

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[135,-30],[136.5,-30],[136.5,-29],[135,-29],[135,-30]]]}
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