• Login
    View Item 
    •   Home
    • Massey Documents by Type
    • Theses and Dissertations
    • View Item
    •   Home
    • Massey Documents by Type
    • Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Geology of the Weber region, North Island, East Coast, New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Earth Science, School of Agriculture and Environment

    Icon
    View/Open Full Text
    HarveyMScThesis.pdf (13.13Mb)
    Export to EndNote
    Abstract
    Geological mapping of the East Coast Basin has tended to be at a broad scale with detailed mapping confined to a few specific areas of interest. The East Coast Basin is a petroliferous region and therefore of interest for petroleum exploration, however, further detailed mapping and sedimentological research is needed to have a better appreciation of the reservoir potential of the basin. Mapped geological boundaries are inferred based on broad tectonic features and structures, and little sedimentology has been undertaken. The current geological understanding is that this area contains a succession of Late Cretaceous (70 Ma) to Late Miocene (~5 Ma) sandstone, limestone, marl, flysch and mudstone facies. Few potential reservoir units are mapped or received detailed analysis and source rock has been an ongoing enigma due to known oil and gas seeps but low Total Organic Content results in most previously studied samples. The purpose of this research is to produce a high- resolution 1:25 000 geological map and undertake biostratigraphical, petrological, structural and paleo-environmental studies to help differentiate the Miocene aged geology of the area. Findings indicate the area is structurally complex with many faults, folds, including the Akitio Syncline, and local unconformities. Within the stratigraphic sequences identified both macro and micro fauna provide depositional environment and age control. Sedimentological and petrographic analysis of the major units also indicate variability in depositional environments from abyssal to shallow marine. Key areas have been located to provide accurate ages throughout the depositional sequence. This project will contribute to current research on the petroleum reservoir potential of the East Coast Basin.
    Date
    2019
    Author
    Harvey, Hannah
    Rights
    The Author
    Publisher
    Massey University
    Description
    The following Figures were removed for copyright reasons: 1.1, 3.2 (=Bailleul et al., 2013 Fig 12) and 3.3 (available at https://researcharchive.vuw.ac.nz/xmlui/handle/10063/7715). Adapted Figures remain for the sake of clarity. Possibly copyrighted material in the Appendices remains for ease of access.
    URI
    http://hdl.handle.net/10179/15598
    Collections
    • Theses and Dissertations
    Metadata
    Show full item record

    Copyright © Massey University
    | Contact Us | Feedback | Copyright Take Down Request | Massey University Privacy Statement
    DSpace software copyright © Duraspace
    v5.7-2020.1-beta1
     

     

    Tweets by @Massey_Research
    Information PagesContent PolicyDepositing content to MROCopyright and Access InformationDeposit LicenseDeposit License SummaryTheses FAQFile FormatsDoctoral Thesis Deposit

    Browse

    All of MROCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Copyright © Massey University
    | Contact Us | Feedback | Copyright Take Down Request | Massey University Privacy Statement
    DSpace software copyright © Duraspace
    v5.7-2020.1-beta1