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Motton Spilite STRATNO: 12433
Current: Yes Rank: Formation, beds Status: Formal State(s): TAS
Category: Other new published name Usage: Fully described Definition Card: No
Originator: Entry date: 01-JAN-88Last Update: 30-JUL-15
Replaced by: Previously known as:
Description: Lenticular unit comprising pillowed and massive basaltic lavas with interbedded volcaniclastic sandstone, mudstone and breccia; includes tholeiitic basalt.
Comments: Dial Range Trough. Correlate of Crimson Creek Formation? Adamsfield-Jubilee region.
Geological province: No province information available
Type state: Reference section type:
Maximum thickness: 500mMinimum thickness:
Unit Age
Top of unit -
Minimum age: Early Cambrian 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: Neoproterozoic III 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:
Barrington Chert underlies Motton Spilite conformity
Sprent Formation overlies Motton Spilite
Luina Group is equivalent to Motton Spilite
First Reference:
REFID: 31464 Jago, J.B., 1973, Paraconformable contacts between Cambrian and Junee Group sediments in Tasmania., Geological Society of Australia. Journal, 20(3), p373-377

Use on maps:
REFID: 69857 Calver, C.R., Corbett, K.D., Everard, J.L., Goscombe, B.A., Pemberton, J., Seymour, D.B., Vicary, M.J., 2011, Geology of Northwest Tasmania. Edition 2011.1. Digital Geological Atlas 1:250 000 Scale Series, Mineral Resources Tasmania, Map


Full Bibliographic Details (ordered by usage, publication year)

REFID: 36788 Jennings, I.B. , Clarke, M.J. , Leaman, D.E. , Collins, P.L.F. , Summons, T.G. , Threader, V.M. , Dix, M.J. 1979 Sheffield, Tasmania, 1 mile geological atlas series explanatory notes. Sheet 37(8115S), Zone 7. Geological Survey of Tasmania 1v
Usage: Fully described (p20) Comments:
REFID: 69874 Corbett, K.D. , Berry, R.F. , Everard, J.L. , Calver, C.R. , Crawford, A.J. , Vicary, M.J. , Bottrill, R.S. , Bass Metals Limited , Henty Gold Mine , McNeil, A.W. 2014 Cambrian Tasmania. In: Corbett, K.D., Quilty, P.G. & Calver, C.R. editors, Geological Evolution of Tasmania. Geological Society of Australia Special Publication 24 pp.95-240
Usage: Described (p101, p110-111, p113-115, p169-170) Min age from reference: Early Cambrian Max age from reference: Early Cambrian Comments: Crops out E of Dial Range Trough near Penguin, and between North Motton and Preston. Probably allochthonous and thrust over Middle Cambrian stratigraphy. Up to 500m thick. Precedes Mount Read Volcanics. Geochemistry detailed. Supplied detritus to the Sprent conglomerates. , Overlies Barrington Chert conformably. Underlies Sprent Formation. Correlated with Luina Group. , Usually massive metabasalt and minor associated breccia. Spilitic basalt of MORB affinity containing pillow lavas. Aphyric, intergranular to ophitically intergrown augite and albitised plagioclase with metamorphic minerals.
REFID: 37409 Hashimoto, M. , Saito, Y. , Kashima, N. 1981 Relic clinopyroxenes and metamorphism of the Motton Spilite of the Leven Hills district, Tasmania. Royal Society of Tasmania, Papers and Proceedings 115 p173-179
Usage: Described (p173) Comments:
REFID: 69857 Calver, C.R. , Corbett, K.D. , Everard, J.L. , Goscombe, B.A. , Pemberton, J. , Seymour, D.B. , Vicary, M.J. 2011 Geology of Northwest Tasmania. Edition 2011.1. Digital Geological Atlas 1:250 000 Scale Series Mineral Resources Tasmania Map
Usage: Briefly described (Map legend) Min age from reference: Cambrian Max age from reference: Cambrian Comments: , Includes tholeiitic basalt.
REFID: 24604 Holm, O.H. , Crawford, A.J. , Berry, R.F. 2003 Geochemistry and tectonic settings of meta-igneous rocks in the Arthur Lineament and surrounding area, northwest Tasmania Australian Journal of Earth Sciences 50(6) p903-918
Usage: Briefly described (p907 Fig. 4) Min age from reference: Neoproterozoic Max age from reference: Neoproterozoic Comments:
REFID: 63249 Goldfields-AurionGold Exploration 2003 Gog - Final Report - EL12/2001 Placer Dome Asia Pacific. Henty Gold Ltd. Final Report EL 12/2001 13p
Usage: Briefly described (p2, p4 Tb. 1) Comments: Geological Province: Fossey Mountain Trough (Dundas Trough). Occurs as massive, dark green, fine-grained chloritised rock composed of albite and augite/chlorite interbedded with chert breccia and volcaniclastics.
REFID: 61412 Berry, R.F. , Holm, O. 2001 The structure of northwestern Tasmania Geological Society of Australia. Specialist Group in Tectonics and Structural Geology. Field Guide. 11 52p
Usage: Briefly described (p3, p10 Fig.6.) Max age from reference: Late Neoproterozoic Comments: Spilitic basalt of MORB affinity with pillow lavas.
REFID: 44135 Seymour, D.B. , Calver, C.R. 1995 Explanatory notes for the time-sequence diagram and Stratotectonic Elements Map of Tasmania. Geological Survey of Tasmania. Records 1995/01 62p + map + diagram
Usage: Briefly described (p25-26) Min age from reference: Middle Cambrian Max age from reference: Early Cambrian Comments: Max. thickness: ~500m. With Barrington Chert, considered to be oldest units in the post-Burnie Formation sequence. Lenticular unit comprising pillowed and massive basaltic lavas with interbedded volcaniclastic sandstone, mudstone and breccia.
REFID: 42972 Leaman, D.E. , Woodward, N.B. , Gray, D.R. , Elliott, C.G. 1994 Discussion and Reply -- Repeated Palaeozoic thrusting and allochthoneity of Precambrian basement, northern Tasmania. Australian Journal of Earth Sciences 41(2) p171-173
Usage: Briefly described (p172) Comments:
REFID: 42891 Woodward, N.B. , Gray, D.R. , Elliott, C.G. 1993 Repeated Palaeozoic and allochthoneity of Precambrian basement, northern Tasmania. Australian Journal of Earth Sciences 40(3) p297-311
Usage: Briefly described (Fig.3 P300) Comments:
REFID: 40639 Jago, J.B. 1981 Late Precambrian-Early Paleozoic geological relationships between Tasmania and northern Victoria Land. IN Cresswell & Vella (eds) - Gondwana Five. Papers from 5th Int. Symposium. A.A. Balkema, Rotterdam 1v p199-204
Usage: Briefly described (p202) Comments:
REFID: 45087 Joplin, G.A. 1975 Chemical analyses of Australian rocks. Part III: Igneous and metamorphic, supplement 1961-1969. Bureau of Mineral Resources, Australia. Bulletin 146
Usage: Briefly described (p104) Comments: See also p176. Chem. analyses.
REFID: 33297 Stevenson, P.C. 1974 A re-examination of Grooms Slip, near Penguin. Geological Survey of Tasmania. Technical Report 17 p120-121
Usage: Briefly described (p120) Comments: See also p121.
REFID: 69873 Calver, C.R. , Everard, J.L. , Berry, R.F. , Bottrill, R.S. , Seymour, D.B. 2014 Proterozoic Tasmania. In: Corbett, K.D., Quilty, P.G. & Calver, C.R. editors, Geological Evolution of Tasmania. Geological Society of Australia Special Publication 24 pp33-94
Usage: Mentioned (p80) Comments: Adelaide Rift Complex. Included in diagram showing Cryogenian-Ediacaran stratigraphy and correlations with Tasmanian succession.
REFID: 67501 Calver, C.R. , Forsyth, S.M. , Everard, J.L. 2007 Explanatory Report for the Maydena, Skeleton, Nevada, Weld and Picton geological map sheets Mineral Resources Tasmania. 1:25 000 scale digital geological map series explanatory report 1 32p
Usage: Mentioned (p11) Comments: ?Early Cambrian
REFID: 63612 Corbett, K.D. 2003 A review of geology and exploration in the Macquarie Harbour-Elliott Bay area, South West Tasmania Geological Survey of Tasmania. Records 2003/04 31p
Usage: Mentioned (p13) Comments: In the Sheffield-Penguin area.
REFID: 61411 Berry, R.F. , Gray, D.R. 2001 The structure of the coastal section from Goat Island to Ulverstone, northwestern Tasmania Geological Society of Australia. Specialist Group in Tectonics and Structural Geology. Field Guide. 10 28p
Usage: Mentioned (p4 Fig.1.) Max age from reference: Late Neoproterozoic Comments: Spilitic basalt of MORB affinity with pillow lavas.
REFID: 22627 Bottrill, R.S. , Brown, A.V. , Calver, C.R. , Corbett, K.D. , Green, G.R. , McClenaghan, M.P. , Pemberton, J. , Seymour, D.B. , Taheri, J. 1998 A summary of the economic geology and mineral potential of Late Proterozoic and Palaeozoic provinces in Tasmania. AGSO Journal of Australian Geology and Geophysics 17(3) 123-143
Usage: Mentioned (p128) Min age from reference: Cambrian Max age from reference: Cambrian Comments:
REFID: 43777 Laurie, J.R. , Jago, J.B. , Jin-Song, B. 1995 Review of Tasmanian Cambrian biostratigraphy. Australian Geological Survey Organisation. Record 1995/69 p1-31
Usage: Mentioned (p7) Comments:
REFID: 43191 Crawford, A.J. , Berry, R.F. 1992 Tectonic implications of Late Proterozoic -Early Palaeozoic igneous rock associations in western Tasmania Tectonophysics 214 (1-4) p37-56
Usage: Mentioned (p39,41.) Comments: Correlates of Crimson Creek Formation?
REFID: 638 Corbett, K.D. , Solomon, M. 1989 Cambrian Mt Read Volcanics and associated mineral deposits: Chapter 4 IN Burrett, C.F. and Martin, E.L. (eds.) "Geology and Mineral Resources of Tasmania" Geological Society of Australia. Special Publication 15 p84-153
Usage: Mentioned (p119) Comments: Pillow lavas.
REFID: 63169 Corbett, K.D. , Turner, N.J. , McClenaghan, M.P. 1989 Early Palaeozoic deformation and Tectonics Chapter 5 IN Burrett, C.F. and Martin, E.L. (eds.) "Geology and Mineral Resources of Tasmania" Geological Society of Australia. Special Publication 15 p154-181
Usage: Mentioned (p157) Comments:
REFID: 35791 Jago, J.B. 1979 Tasmanian Cambrian biostratigraphy - A preliminary report. Geological Society of Australia. Journal 26(5) p223-230
Usage: Mentioned (p227) Comments:
REFID: 36337 Baillie, P. , Brown, A.V. 1978 A section across the Dial Range Trough and its margins. Excursion 3.in Green D.C.,Williams P.R.(eds)-Geology & mineralization of N.W.Tasmania 1978 Symposium Burnie 11-12 Nov. Geological Society of Australia. Tas.Div. & Spec.Group in Eco.Geology 1v p39-42
Usage: Mentioned (p40) Comments:
REFID: 31464 Jago, J.B. 1973 Paraconformable contacts between Cambrian and Junee Group sediments in Tasmania. Geological Society of Australia. Journal 20(3) p373-377
Usage: Mentioned (Fig.2) Comments: Correlation chart

Bibliographic references returned: 25 This data is subject to Geoscience Australia's disclaimer and copyright statements.