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Blow Hole Latite Member STRATNO: 1968
Current: Yes Rank: Member, phase Status: Formal State(s): NSW
Category: Unknown or process pending Usage: Fully described Definition Card: No
Originator: Entry date: 01-JAN-88 Last Update: 13-JUN-13
Replaced by: Previously known as: Blow Hole Latite
Description: Basaltic lava flow. Three pillowed, columnar, microporphyritic flows separated by breccias.
Comments: Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]. Previously considered a member of the Broughton Formation.
Geological province: No province information available
Type state: Reference section type:
Maximum thickness: Minimum thickness:
Unit Age Event: eruption
Top of unit -
Minimum age: Late Permian 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 Permian 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:
Kiama Sandstone Member overlies Blow Hole Latite Member
Westley Park Sandstone Member underlies Blow Hole Latite Member
Broughton Formation is interbedded with Blow Hole Latite Member
First Reference:
REFID: 29900 Bowman, H.N., 1970, Palaeoenvironment and revised nomenclature of the Upper Shoalhaven Group and Illawarra Coal Measures in the Wollongong-Kiama area, New South Wales., Geological Survey of New South Wales, Records, 12(2), p163-182

Use on maps:
REFID: 36223 Bowman, H.N., Stewart, T.R., 1974, Kiama, New South Wales, 1:50 000 geological series map.Sheet 9028-I, 1st edition. (See Geology of the Wollongong, Kiama & Robertson 1:50 000 sheets by Geol.Surv.NSW.), Geological Survey of New South Wales, 1v


Full Bibliographic Details (ordered by usage, publication year)

REFID: 23896 Carr, P.F. , Jones, B.G. 2001 The influence of palaeoenvironment and lava flux on the emplacement of submarine, near-shore Late Permian basalt lavas, Sydney Basin (Australia) Journal of Volcanology and Geothermal Research 112 p247-266
Usage: Fully described (p249, p264 App.1) Min age from reference: Late Permian Max age from reference: Late Permian Comments: Of Broughton Formation. See also p250 Table 1. Overlies Westley Park Sandstone Member, overlain by Kiama Sandstone Member. Geological Province: Sydney Basin. Submarine basaltic lava flow.
REFID: 23544 Campbell, L.M. , Conaghan, P.J. , Flood, R.H. 2001 Flow-field and palaeogeographic reconstruction of volcanic activity in the Permian Gerringong Volcanic Complex, Southern Sydney Basin, Australia Australian Journal of Earth Sciences 48(3) p357-375
Usage: Described (Table 1 p360.) Comments: also see Fig 2 p358 and p364. Of the Gerringong Volcanics in the Sydney Basin.
REFID: 23442 Doyle, M.G. 2000 Clast shape and textural associations in peperite as a guide to hydromagmatic interactions: Upper Permian basaltic and basaltic andesite examples from Kiama, Australia Australian Journal of Earth Sciences 47(1) p167-177
Usage: Described (p169) Comments: of Broughton Formation
REFID: 38690 Carr, P.F. 1983 A reappraisal of the stratigraphy of the upper Shoalhaven Group and lower Illawarra Coal Measures, southern Sydney Basin, New South Wales. Proceedings of the Linnean Society of New South Wales 106(3/4) p288-297
Usage: Described (p289) Comments:
REFID: 36220 Bowman, H.N. 1974 Geology of the Wollongong, Kiama, and Robertson 1:50 000 sheets. 9029-II, 9028-I & IV. Geological Survey of New South Wales 1v
Usage: Described (p37) Comments: See also Table 1.
REFID: 29901 Bowman, H.W. 1972 Natural slope stability in the City of Greater Wollongong. Geological Survey of New South Wales, Records 14(2) p159-222
Usage: Described (Table 1) Comments:
REFID: 22488 Carr, P.F. , Pemberton, J.W. , Nunan, E. 1999 Low-grade metamorphism of mafic lavas, Upper Permian Broughton Formation, Sydney Basin. Australian Journal of Earth Sciences 46(6) p839-849
Usage: Briefly described (p841) Comments:
REFID: 67500 Retallack, G.J. 1999 Permafrost palaeoclimate of Permian palaeosols in the Gerringong volcanic facies of New South Wales Australian Journal of Earth Sciences 46/1 pp11-22
Usage: Briefly described (p12, Tb.1, p16) Min age from reference: Late Permian Max age from reference: Late Permian Comments: Flows with columnar jointing indicate cooling on land. , Of the Broughton Formation and Gerringong volcanic facies. , Overlain by the Kiama Sandstone Member. , Three pillowed, columnar, microporphyritic flows separated by breccias.
REFID: 22433 Rettalack, G.J. 1999 Permafrost paleoclimate of Permian palaeosols in the Gerringong volcanic facies of New South Wales Australian Journal of Earth Sciences 46(1) 11-22
Usage: Briefly described (p12 Table 1) Comments: in the Sydney Basin
REFID: 22857 Scheibner, E. , Basden, H. (ed.) 1998 Geology of New South Wales - Synthesis. Volume 2 Geological Evolution. Geological Survey of New South Wales. Memoir (Geology) 13(2) 666pp
Usage: Briefly described (p532 App.1 Tb.A1.9) Min age from reference: Early Permian Max age from reference: Early Permian Comments: Of the Broughton Formation (Shoalhaven Group). Latite members of Broughton Fm. and Pheasants Nest Fm. (Illawarra C.M.) together form Gerringong volcanic facies. Geological Province: Sydney Basin.
REFID: 41832 Bull, S.W. , Cas, R.A.F. 1989 Volcanic influences in a storm- and tide-dominated shallow m arine depositional system: The Late Permian Broughton Format ion, southern Sydney Basin, Kiama, NSW. Australian Journal of Earth Sciences 36(4) p569-584
Usage: Mentioned (p569) Comments:
REFID: 40270 Carr, F. 1985 Geochemistry of late Permian shoshonitic lavas from the southern Sydney Basin. IN Sutherland F.L., Franklin B.J., Waltho A.E. (eds) - Volcanism in Eastern Australia. Geological Society of Australia. New South Wales Division. Publication 1 p165-183
Usage: Mentioned (p177) Comments:
REFID: 40519 Baker, C.J. 1983 Planning for future management of blue metal quarrying in the Illawarra area, NSW. IN Knight M.J.,Minty E.J.,Smith R.B.(eds)-Collective case studies in engineering geology, hydrogeology and environmental geology. Geological Society of Australia. Special Publication 11 p322-340
Usage: Mentioned (Fig.3) Comments:
REFID: 31128 Gray, N.M. 1976 Engineering geology of the southern part of the Sydney Basin. 25th International Geological Congress. Excursion Guide 6B
Usage: Mentioned (Table 1) Comments:
REFID: 36223 Bowman, H.N. , Stewart, T.R. 1974 Kiama, New South Wales, 1:50 000 geological series map.Sheet 9028-I, 1st edition. (See Geology of the Wollongong, Kiama & Robertson 1:50 000 sheets by Geol.Surv.NSW.) Geological Survey of New South Wales 1v
Usage: Mentioned (Map legend) Min age from reference: Late Permian Max age from reference: Late Permian Comments: Early Late Permian.
REFID: 29900 Bowman, H.N. 1970 Palaeoenvironment and revised nomenclature of the Upper Shoalhaven Group and Illawarra Coal Measures in the Wollongong-Kiama area, New South Wales. Geological Survey of New South Wales, Records 12(2) p163-182
Usage: Mentioned (Table 2) Comments:

Bibliographic references returned: 16 This data is subject to Geoscience Australia's disclaimer and copyright statements.