b'Education matters to the ability to monitor and comparedome structures by acquiring a ground glacier environments. gravity survey at high resolution to forward model the cross-sectional Tom McNamara, University ofgeometries of the Magdala, Wildwood Melbourne: Characterisation ofand Lubeck dome structures, and metavolcanic megaclast structures withinestablish the character of their expression the Moyston Fault hanging wall mlangein potential \x1deld signals (gravity and (Moornambool Metamorphic Complex),magnetic \x1delds). Domes were modelled western Victoria: Insights from potentialwith geometries that resolve potential \x1feld modelling and machine learning. structural waterloo targets known to be associated with mineralisation. Outcomes from the forward modelling were used to reclassify dome target extents, which were applied in a neural network-driven dome structure prospectivity model over the broader Moornambool Metamorphic Complex. The model successfully predicted the known Kewell Dome target and mapped instances of metabasalt outcrop, as well as potential targets further beneath cover near Lake Hindmarsh and Mortlake. The exploration that can supplement satellite imagerytechnique is theoretically generalisable with key information about how theseto any genetically analogous tectonic remote glaciers change. However, theremlange setting.are a few challenges at present: namely,The research was completed with the the ability to detect events abovegenerous support of an ASEG Research ambient noise and the ability to detect allFoundation grant, was approved and types of events. supported in the \x1deld by North Stawell In this thesis, the challenges toMinerals, and the machine learning cryoseismology are addressedcomponent was mentored by Mark Grujic in two parts. First, a novel eventfrom Datarock.detection algorithm is presented that improves upon the popular STA/LTAHonours thesesalgorithm to establish a more catch-all approach that better suits the glacierKristy Ellis, University of Sydney: Late environment. Event detection is thenMesozoic-Early Cenozoic rifting evolution applied to real seismic data from theof the Coral Sea.Whillans Ice Stream in West Antarctica,The Stawell Corridor is a 15 to 20 km retrieved during a 2010-2011 fieldwide structural wedge that sits on the study. The resulting catalogue is thenhanging wall of the Moyston Fault, investigated in preliminary correlation- and hosts a set of major gold deposits type analyses. In the second part ofamidst western Victorias gold\x1delds the thesis, semi-supervised machinein southeast Australia. Stawell Gold learning is applied as a tool to extractMine extracts ore from the Magdala patterns in the diversity of event typesDome, a metabasalt megaclast that sits in the Whillans Ice Stream catalogue.within the Moornambool Metamorphic The event groups are studied inComplex high-strain tectonic mlange. relation to tidal, temporal, spatial, andMurray Basin sedimentary cover climatic cycles. Through a standardisedobscures the rest of the Moornambool workflow, events are then related toMetamorphic Complex structural trend, potential source mechanisms, such asso further exploration has historically melt-related processes impacting thebeen limited. Relative contrasts in nearby Ross Ice Shelf, teleseisms, anddensity and magnetic susceptibility documented stick-slip events. Otherbetween the metabasalt and the events are related to diverse noise-typecountry rock of the metamorphic processes. complex make geophysical methods an ideal vector for targeting Magdala-style The \x1dnal chapter of the thesis synthesisesdome anomalies and reveals a trend these two parts to present a data-drivenof analogous structures northwest of way forward for glaciologists to studyMagdala.changes to glaciers. The work in this thesis provides improved context for theThe project aimed to \x1dll gaps in the Whillans Ice Stream and an advancementexploration model for Magdala-style DECEMBER 2023 PREVIEW 32'