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Carboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel blocks

Roberts, John; Offler, R; Fanning, Christopher

Description

Carboniferous to Lower Permian successions along the western border of the Tamworth Belt between Wallabadah and Muswellbrook were remapped to clarify the stratigraphy and establish a boundary between the Werrie and Rouchel blocks. The boundary, located at the Waverley Fault, separates Carboniferous sequences containing different formations and volcanic members. SHRIMP AS3 dating of volcanic members indicates that successions within the Rouchel and Gresford blocks were deposited, uplifted and...[Show more]

dc.contributor.authorRoberts, John
dc.contributor.authorOffler, R
dc.contributor.authorFanning, Christopher
dc.date.accessioned2015-12-07T22:41:12Z
dc.identifier.issn0812-0099
dc.identifier.urihttp://hdl.handle.net/1885/24208
dc.description.abstractCarboniferous to Lower Permian successions along the western border of the Tamworth Belt between Wallabadah and Muswellbrook were remapped to clarify the stratigraphy and establish a boundary between the Werrie and Rouchel blocks. The boundary, located at the Waverley Fault, separates Carboniferous sequences containing different formations and volcanic members. SHRIMP AS3 dating of volcanic members indicates that successions within the Rouchel and Gresford blocks were deposited, uplifted and eroded at different times. The lacustrine Woodton Formation in the Werrie block, previously considered Carboniferous, is earliest Permian (Asselian) from palaeobotanical and SHRIMP AS3 evidence. Stratigraphic and palaeoenvironmental differences between the Werrie and Rouchel blocks suggest that they were not directly juxtaposed during the greater part of the Carboniferous, supporting palaeomagnetic evidence that blocks within the Tamworth Belt are allochthonous. Superposition of the western extremity of the Waverley Fault by Lower Permian (Sakmarian) formations and intrusion of folded and faulted Devonian to Lower Permian successions by the Barrington Tops Granodiorite (ca 280 Ma) indicate that the Werrie, Rouchel and Gresford blocks were subjected to tectonism before the Late Permian Hunter-Bowen Orogeny.
dc.publisherBlackwell Publishing Ltd
dc.sourceAustralian Journal of Earth Sciences
dc.subjectKeywords: Carboniferous; Permian; SHRIMP dating; stratigraphy; uranium-lead dating; Australasia; Australia; New England Fold Belt; Tamworth Belt Carboniferous; New England Orogen; Permian; Rouchel block; SHRIMP; Stratigraphy; Tamworth Belt; Uranium-lead dating; Werrie block
dc.titleCarboniferous to Lower Permian stratigraphy of the southern Tamworth Belt, southern New England Orogen, Australia: boundary sequences of the Werrie and Rouchel blocks
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume53
dc.date.issued2006
local.identifier.absfor040303 - Geochronology
local.identifier.absfor040311 - Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
local.identifier.ariespublicationu4027924xPUB31
local.type.statusPublished Version
local.contributor.affiliationRoberts, John, University of New South Wales
local.contributor.affiliationOffler, R, University of Newcastle
local.contributor.affiliationFanning, Christopher, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage249
local.bibliographicCitation.lastpage284
local.identifier.doi10.1080/08120090500499263
dc.date.updated2015-12-07T10:58:11Z
local.identifier.scopusID2-s2.0-33646706063
CollectionsANU Research Publications

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