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North Arm Volcanic Group STRATNO: 41141
Current: Yes Rank: Group, Suite Status: Formal State(s): QLD
Category: Variation of published name Usage: Briefly described Definition Card: No
Originator: Entry date: 28-MAY-04 Last Update: 10-APR-13
Replaced by: Previously known as: North Arm Volcanics
Description: Andesite, rhyolitic volcaniclastics and flows, minor sediments
Comments: See North Arm Volcanics for definition.
Geological province: Gympie Province, Wandilla Province
Type state: Reference section type:
Maximum thickness: Minimum thickness:
Unit Age Event: eruption
Top of unit -
Minimum age: Late Triassic Ma: % from base of biozone: Age method:
Maximum age: Ma: % from base of biozone: Age method:
Base of unit -
Minimum age: Ma: % from base of biozone: Age method:
Maximum age: Late Triassic Ma: % from base of biozone: Age method:

Stratigraphic Hierarchy (current units only) Rank Status

Chemical Hierarchy (current units only) Rank Status


Related units: Relationship: Contact Type:
First Reference:
REFID: 50320 Tang, J.E.H., Pascoe, G.S., 2002, Goomeri, Qld., 1:100 000 Sheet 9345, Edition 2, Queensland. Department of Natural Resources and Mines., 1v, Map

Use on maps:
REFID: 50320 Tang, J.E.H., Pascoe, G.S., 2002, Goomeri, Qld., 1:100 000 Sheet 9345, Edition 2, Queensland. Department of Natural Resources and Mines., 1v, Map


Full Bibliographic Details (ordered by usage, publication year)

REFID: 69952 Cross, A.J. , Dunkley, D.J. , Bultitude, R.J. , Brown, D.D. , Purdy, D.J. , Withnall, I.W. , von Gnielinski, F.E. , Blake, P.R. 2015 Summary of results Joint GSQ-GA geochronology project: Thomson Orogen, New England Orogen and Mount Isa region, 2010-2012 Queensland Geological Record 2015/01 138p
Usage: Briefly described (p2 Tb.i, p47-50) Min age from reference: Late Triassic Max age from reference: Late Triassic Comments: SHRIMP U-Pb zircon magmatic crystallisation age. Previous Ar-Ar and K-Ar age determinations ranged from c.235 Ma to c.224 Ma (Little et al., 1993; Sliwa, 1994). , 229.0 +/- 1.7 Ma (Cross et al., 2015). , Includes Wappa Rhyolite. , Includes a flow-banded dacitic unit.
REFID: 50320 Tang, J.E.H. , Pascoe, G.S. 2002 Goomeri, Qld., 1:100 000 Sheet 9345, Edition 2 Queensland. Department of Natural Resources and Mines. 1v Map
Usage: Briefly described (Map Legend) Min age from reference: Late Triassic Max age from reference: Late Triassic Comments:
REFID: 68553 Geological Survey of Queensland 2012 Queensland geology 1:2 000 000 scale map and Queensland geology framework Department of Natural Resources and Mines, Queensland map (in 2 sheets)
Usage: Mentioned (Map legend; schematic diagram.) Min age from reference: Triassic Max age from reference: Triassic Comments: Bowen Basin. This unit, as well as the Aranbanga Volcanic Group; the Agnes Water, Bobby, Chillingham, Coulston, Dangore, Dooloo Tops, Morang, Mount Byron, Mount Eagle, Ooramera, Portal Creek and Winterbourne Volcanics; the Brisbane Tuff, Cynthia beds, and the Callide Coal Measures, are all mapped under the symbol, Rvs.
REFID: 67203 Purdy, D.J. 2010 Geology and geochemistry of the Late Triassic Bobby Volcanics, Many Peaks area, Central Queensland [electronic resource]. Geological Survey of Queensland, Record 2010/02 CD ROM
Usage: Mentioned (p3, p36-37) Min age from reference: Triassic Max age from reference: Triassic Comments: Further geochronological work is required to determine the distribution (especially the width) of the Late Triassic volcanic belt.

Bibliographic references returned: 4 This data is subject to Geoscience Australia's disclaimer and copyright statements.