{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "clientservices@ga.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 1, "geospatial_topic": [], "id": "f24e3088-f473-4323-b28e-98db0b7744c3", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-12-20T20:42:35.980232", "metadata_modified": "2025-12-20T20:42:35.980240", "name": "kinetics-of-hydrocarbon-generation-from-the-marine-ordovician-goldwyer-formation-canning-basin-2", "notes": "Pyrolysis and bulk kinetic studies were used to investigate the hydrocarbon generation potential and source rock facies variability of the marine organic-rich rocks from the Middle Ordovician (Darriwilian) Goldwyer Formation in the Canning Basin, Western Australia. Rock Eval pyrolysis results for the analysed immature to mid-mature calcareous mudstones imply that the upper Goldwyer Sequence I samples contain oil-prone Type I kerogen, while the lower Goldwyer Sequence III samples comprise on average Type II/III oil- and gas-prone kerogen. This is supported by the pyrolysis gas chromatography (Py-GC) results that show the presence of homogenous organofacies in the Goldwyer Sequence I that comprise aliphatic molecular signatures, possibly attributed to the selective preservation of the lipid fraction derived from <i>Gloeocapsomorpha prisca</i> (<i>G. prisca</i>). The heterogeneous organofacies of the Goldwyer Sequence III contains aromatic moieties that are present in similar abundance as the aliphatic compounds. The calcareous claystones of the Goldwyer Sequence I have the capacity to generate paraffinic oil with low wax contents, whereas those of the Goldwyer Sequence III have generative potential for paraffinic-naphthenic-aromatic (P-N-A) low wax oils and gas and condensate.\n\nThe temperature for hydrocarbon generation for the Type I kerogen, assuming a constant geological heating rate of 3oC/Ma, is estimated to occur over a narrow interval between 145oC and 170oC for the Goldwyer Sequence I samples. Generation from the Type II/III kerogen occurs from 100\u00b0C to 160\u00b0C in the Goldwyer Sequence III samples which are significantly thermally less stable than observed for the Goldwyer Sequence I samples. The kinetics results for both sequences were used in standard thermal and burial history plots to evaluate their transformation ratio and hydrocarbon generative potential. This provided a basin-specific kinetic input for burial history modelling and a better constraint for kerogen transformation and hydrocarbon generation on the Broome Platform.\n\n<b>Citation:</b> Lukman M. Johnson, Reza Rezaee, Gregory C. Smith, Nicolaj Mahlstedt, Dianne S. Edwards, Ali Kadkhodaie, Hongyan Yu,; Kinetics of hydrocarbon generation from the marine Ordovician Goldwyer Formation, Canning Basin, Western Australia,<i> International Journal of Coal Geology</i>, Volume 232, <b>2020</b>, 103623, ISSN 0166-5162, https://doi.org/10.1016/j.coal.2020.103623.", "num_resources": 1, "num_tags": 5, "organization": {"id": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "name": "australian-ocean-data-network", "title": "Australian Ocean Data Network", "type": "organization", "description": "Harvester for Australian Ocean Data Network", "image_url": "", "created": "2025-06-23T12:29:10.320926", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://catalogue.aodn.org.au", "href": "https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/kinetics-of-hydrocarbon-generation-from-the-marine-ordovician-goldwyer-formation-canning-basin-2", "title": "Australian Oceans Data Network"}, "owner_org": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[120.0, -24.0], [128.0, -24.0], [128.0, -17.0], [120.0, -17.0], [120.0, -24.0]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[120.0, -24.0], [128.0, -24.0], [128.0, -17.0], [120.0, -17.0], [120.0, -24.0]]]}", "state": "active", "temporal_coverage_from": "2020-02-17 00:00:00", "temporal_coverage_to": "2022-03-01 00:00:00", "title": "Kinetics of hydrocarbon generation from the marine Ordovician Goldwyer Formation, Canning Basin, Western Australia", "type": "dataset", "unpublished": false, "url": null, "version": null, "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2025-12-20T20:42:35.981836", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Link to Journal", "format": "HTML", "hash": "", "id": "818c419b-a944-48d7-91ce-8b7c181d317f", "last_modified": null, "metadata_modified": "2025-12-20T20:42:35.971975", "mimetype": null, "mimetype_inner": null, "name": "Link to Journal", "package_id": "f24e3088-f473-4323-b28e-98db0b7744c3", "position": 0, "resource_locator_function": "", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "http://dx.doi.org/10.1016/j.coal.2020.103623", "url_type": null, "zip_extract": false}], "tags": [{"display_name": "Canning Basin", "id": "d7701576-1191-4b9c-b58a-9a8c22a2717b", "name": "Canning Basin", "state": "active", "vocabulary_id": null}, {"display_name": "Compositional kinetics", "id": "34a2eda3-3cfc-4020-9425-fdce46c9f40a", "name": "Compositional kinetics", "state": "active", "vocabulary_id": null}, {"display_name": "EARTH SCIENCES", "id": "927af2a7-7457-45c2-bd55-10000fd09c14", "name": "EARTH SCIENCES", "state": "active", "vocabulary_id": null}, {"display_name": "Published_External", "id": "5178775c-8044-4b7f-881f-5428a4e2d925", "name": "Published_External", "state": "active", "vocabulary_id": null}, {"display_name": "petroleum systems modelling input", "id": "7a0bae11-4982-4ba9-a666-b889113468c2", "name": "petroleum systems modelling input", "state": "active", "vocabulary_id": null}], "groups": [], "relationships_as_subject": [], "relationships_as_object": [], "extras": [{"key": "harvest_object_id", "value": "8870948b-57d1-4b01-aba0-10c705278418"}, {"key": "harvest_source_id", "value": "a2216e59-91ec-48b1-83cc-d35d9f09fcec"}, {"key": "harvest_source_title", "value": "Australian Oceans Data Network"}]}}