Show simple item record  

dc.contributor.authorLa Croix, Andrew D.en_NZ
dc.contributor.authorHe, Jianhuaen_NZ
dc.contributor.authorBianchi, Valeriaen_NZ
dc.contributor.authorWang, Jiahaoen_NZ
dc.contributor.authorGonzalez, Sebastianen_NZ
dc.contributor.authorUndershultz, Jim R.en_NZ
dc.date.accessioned2020-02-23T21:08:58Z
dc.date.available2019-11-21en_NZ
dc.date.available2020-02-23T21:08:58Z
dc.date.issued2019en_NZ
dc.identifier.citationLa Croix, A. D., He, J., Bianchi, V., Wang, J., Gonzalez, S., & Undershultz, J. R. (2019). Early Jurassic palaeoenvironments in the Surat Basin, Australia - marine incursion into eastern Gondwana. Sedimentology, 67(1), 457–485. https://doi.org/10.1111/sed.12649en
dc.identifier.issn0037-0746en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/13455
dc.description.abstractInterpretations of palaeodepositional environments are important for reconstructing Earth history. Only a few maps showing the Jurassic depositional environments in eastern Australia currently exist. Consequently, a detailed understanding of the setting of Australia in Gondwana is lacking. Core, wireline logs, two‐dimensional and three‐dimensional seismic from the Precipice Sandstone and Evergreen Formation in the Surat Basin have been used to construct maps showing the evolution of depositional environments through the Early Jurassic. The results indicate the succession consists of three third‐order sequences (Sequence 1 to Sequence 3) that were controlled by eustatic sea level. The lowstand systems tract in Sequence 1 comprises braidplain deposits, confined to a fairway that parallels the basin centre. The strata were initially deposited in two sub‐basins, with rivers flowing in different orientations in each sub‐basin. The transgressive systems tract of Sequence 1 to lowstand systems tract of Sequence 3 is dominated by fluvio–deltaic systems infilling a single merged basin centre. Finally, the transgressive and highstand systems tracts of Sequence 3 show nearshore environments depositing sediment into a shallow marine basin. In the youngest part of this interval, ironstone shoals are the most conspicuous facies, the thickness and number of which increase towards the north and east. This study interprets a corridor to the open ocean through the Clarence–Moreton Basin, or the Carpentaria and Papuan basins, evidence of which has been eroded. These results challenge a commonly held view that eastern Australia was not influenced by eustasy, and propose a more dynamic palaeogeographic setting comprising a mixture of fluvial, deltaic and shallow marine sedimentary environments. This work can be used to unravel the stratigraphic relationships between Mesozoic eastern Australian basins, or in other basins globally as an analogue for understanding the complex interplay of paralic depositional systems in data poor areas.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherWileyen_NZ
dc.rightsThis is an author’s accepted version of an article published in the journal: Sedimentology. © 2019 The Authors.
dc.subjectScience & Technologyen_NZ
dc.subjectPhysical Sciencesen_NZ
dc.subjectGeologyen_NZ
dc.subjectEvergreen Formationen_NZ
dc.subjectGondwanaen_NZ
dc.subjectJurassicen_NZ
dc.subjectpalaeoenvironmentsen_NZ
dc.subjectpalaeogeographyen_NZ
dc.subjectPangeaen_NZ
dc.subjectPrecipice Sandstoneen_NZ
dc.subjectSurat Basinen_NZ
dc.subjectSHALLOW-WATER-DELTAen_NZ
dc.subjectPRECIPICE SANDSTONEen_NZ
dc.subjectEVERGREEN FORMATIONen_NZ
dc.subjectSEQUENCE STRATIGRAPHYen_NZ
dc.subjectBRITISH-COLUMBIAen_NZ
dc.subjectSONGLIAO BASINen_NZ
dc.subjectEVOLUTIONen_NZ
dc.subjectHISTORYen_NZ
dc.subjectSTRATAen_NZ
dc.subjectBOWENen_NZ
dc.titleEarly Jurassic palaeoenvironments in the Surat Basin, Australia - marine incursion into eastern Gondwanaen_NZ
dc.typeJournal Article
dc.identifier.doi10.1111/sed.12649en_NZ
dc.relation.isPartOfSedimentologyen_NZ
pubs.begin-page457
pubs.elements-id249354
pubs.end-page485
pubs.issue1en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume67en_NZ
dc.identifier.eissn1365-3091en_NZ


Files in this item

This item appears in the following Collection(s)

Show simple item record