A collection of geological samples associated with drilling activities and submitted by companies under the Offshore Petroleum and Greenhouse Gas Storage Act 2006 (OPGGSA) and previous legislations that required petroleum data to be submitted to the National Offshore Petroleum Data and Core Repository (NOPDCR). The collection also contains cores and cuttings samples acquired by Geoscience Australia and its predecessor BMR, other government agencies and institutions from around Australia. <b>Value: </b>Information related to the subsurface that have the potential to support geological investigations and assessment of a variety of resources. <b>Direct access</b> to petroleum mining sample information is available on National Offshore Petroleum Information Management System (NOPIMS) platform (https://www.ga.gov.au/nopims) via the Core Library tab. <b>Request to access</b> those samples can also be made via the form available on NOPIMS. https://nopims.dmp.wa.gov.au/Nopims/RequestForms/CoreCuttingsAccess/CoreCuttingsAccess

<div>Gas production from the Inner Otway Basin commenced in the early 2000s but the deep-water part of this basin remains an exploration frontier. Historically, the understanding of plays in this region were largely model driven and therefore the ground-truthing of depositional environments (DE) and gross depositional environments (GDE) are critical. This aspect has been investigated for the Sherbrook Supersequence (SS) by the integration of legacy wireline and core data, with regional 2D seismic facies mapping of new and reprocessed data from Geoscience Australia’s 2020 Otway Basin seismic program. Core observations were matched to wireline logs and seismic facies with resulting well based DE interpretations calibrated to seismic resolution Regional GDE intervals. Integration of well and seismic observations lead to the compilation of a basin-wide Regional GDE map for the Sherbrook SS. This GDE map indicates the distribution of Sherbrook SS play elements such as source rock, seal and reservoir, especially across the Deep Water Otway Basin where well data is sparse.</div> Published in The APPEA Journal 2023. <b>Citation:</b> Cubitt Chris, Abbott Steve, Bernardel George, Gunning Merrie-Ellen, Nguyen Duy, Nicholson Chris, Stoate Alan (2023) Cretaceous depositional environment interpretation of offshore Otway Basin cores and wireline logs; application to the generation of basin-scale gross depositional environment maps. <i>The APPEA Journal</i><b> 63</b>, S215-S220. https://doi.org/10.1071/AJ22090

This Record presents new Sensitive High Resolution Ion Microprobe (SHRIMP) U–Pb geochronological results for samples collected from the Mary Kathleen Domain, which forms the western part of the Eastern Fold Belt in the Mount Isa Inlier. Eight samples, comprising three granites, one quartz diorite, two metarhyolites, one feldspathic quartzite, and one of matrix material from a breccia, have been analysed as part of ongoing investigations by GSQ in collaboration with researchers from James Cook University. The results enable a better understanding of the evolution of the domain, the associated magmatism, and any related mineralisation. <b>Bibliographic Reference:</b> Kositcin, N., Bultitude, R.J., and Purdy, D.J. Summary of Results. Joint GSQ–GA Geochronology Project: Mary Kathleen Domain, Mount Isa Inlier, 2018–2019. <i>Queensland Geological Record</i><b> 2019/02</b>.