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Napperby Formation STRATNO: 13831
Current: Yes Rank: Formation, beds Status: Formal State(s): NSW , QLD
Category: Variation of published name Usage: Redefined Definition Card: No
Originator: Entry date: 01-JAN-88 Last Update: 13-NOV-13
Replaced by: Previously known as: Napperby Beds""
Description: Lacustrine and prograding delta sequences - finely laminated quartzose sandstone and siltstone interbedded with thick, massive or crossbedded sandstones; minor conglomerate.
Comments: Not related to Napperby Gneiss/Napperby Suite in NT.
Geological province: Gunnedah Basin
Type state: Reference section type:
Maximum thickness: 250m Minimum thickness:

Unit Age
Top of unit -
Minimum age: Middle 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: Early Triassic Ma: % from base of biozone: Age method:

Stratigraphic Hierarchy (current units only): - Rank: - Status:

  • Napperby Formation- Formation, beds- Formal

Chemical Hierarchy (current units only): - Rank: - Status:

  • Napperby Formation- Formation, beds- Formal

Related units: Relationship: Contact Type:
Purlawaugh Formation overlies Napperby Formation unconformity
Deriah Formation overlies Napperby Formation
Pilliga Sandstone overlies Napperby Formation
Boulderwood Formation underlies Napperby Formation
Digby Formation underlies Napperby Formation disconformity
Pilliga Sandstone underlies Napperby Formation
Dunedoo Formation underlies Napperby Formation

First Reference:
REFID: 37856 Russell, T.G., Middleton, M.F., 1981, Coal rank and organic diagenesis studies in the Gunnedah Basin: preliminary results., Geological Survey of New South Wales. Quarterly Notes, 45, p1-11

Definition Reference:
REFID: 23170 Meakin, N.S., Morgan, E.J., 1999, Dubbo 1:250 000 geological Sheet SI/55-4, 2nd Edition. Explanatory Notes., Australian Geological Survey Organisation and Geological Survey of New South Wales, 1v, 504p

Use on maps:
REFID: 721 Brown, R.E., Brownlow, J.W., Krynen, J.P., 1992, Manilla-Narrabri 1:250000 Metallogenic Map SH/56-9, SH/55-12. Metallogenic Study and Mineral Deposit Data Sheets, Geological Survey of New South Wales. Metallogenic Map Series, 1v, Map
REFID: 23043 Morgan, E.J., Cameron, R.G., Colquhoun, G.P., Meakin, N.S., Raymond, O.L., Scott, M.M., Watkins, J.J., Barron, L.M., Henderson, G.A.M., Krynen, J.P., Pogson, D.J., Warren, A.Y.E., Wyborn, D., Yoo, E.K., Glen, R.A., Jagodzinski, E.A., 1999, Dubbo 1:250 000 geological sheet SI/55-4 (Second Edition), Geological Survey of New South Wales, 1v, map
REFID: 43091 Brown, R.E., Krynen, J.P., Brownlow, J.W., 1990, Manilla-Narrabri 1:250 000 Metallogenic Map, Geological Survey of New South Wales, 1v, map
REFID: 50590 Raymond, O.L., Warren, A.Y.E., Henderson, G.A.M., 1997, Dubbo, New South Wales, 1:100 000 Geological Sheet 8633, Preliminary First edition, New South Wales. Department of Mineral Resources/Australian Geological Survey Organisation, 1v, Map
REFID: 50629 Pratt, W., 1998, Gunnedah Coalfield (North) Regional Geology 1:100 000 - First edition, Geological Survey of New South Wales, 1v, Map


Full Bibliographic Details (ordered by usage, publication year)

REFID: 43194 Tadros, N.Z. 1993 The Gunnedah Basin, New South Wales. Geological Survey of New South Wales. Memoir (Geology) 12 649p
Usage: Redefined (p98 Tb 8.2, p118-127, p133 App. 1) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments: See also references on p95-96, p129 Tb.8.3, p131. Supersedes Napperby Series/Beds. Disconformably overlies Digby Formation. Underlies Deriah Formation. Correlated with the Gosford Formation (lower Napperby Formation), Hawkesbury Sandstone and Ashbury Shale (middle) and the lower part of Bringelly Shale.
REFID: 23170 Meakin, N.S. , Morgan, E.J. 1999 Dubbo 1:250 000 geological Sheet SI/55-4, 2nd Edition. Explanatory Notes. Australian Geological Survey Organisation and Geological Survey of New South Wales 1v 504p
Usage: Defined (p310) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments: In the Sydney Basin.
REFID: 65116 Totterdell, J.M. , Moloney, J. , Korsch, R.J. , Krassay, A.A. 2009 Sequence stratigraphy of the Bowen-Gunnedah and Surat Basins in New South Wales Australian Journal of Earth Sciences 56(3) p433-459
Usage: Described (p450, 451, 449, Fig 2 p436, Fig 6 p441) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments: Underlies the Deriah Formation, Gunnedah Basin. Maximum thickness ~130m. Lower part equivalent to pre-Showgrounds Sandstone part of Clematis Group. Fine grained sandstone with interbedded silt and claystone in the upper half, the lower half is upward coarsening laminated silt/sandstone with varying bioturbation and burrows.
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: Described (p265, p518 App.1 Tb.A1.9) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: Max. thickness: 250m. Geological Province: Gunnedah and Sydney Basins. See also p526 App.1 Tb.A1.9 and p315 Fig. 22.8.
REFID: 43494 Henderson, G.A.M. 1996 Notes on the geology of three areas in the Dubbo 1:250 000 Sheet area, N.S.W. Australian Geological Survey Organisation. Record 1996/47 32p + Appendix (11p) and Figures (6)
Usage: Described (p12-13) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: Referred to as "Ballimore Formation" by Offenberg et al (1971) and included the Boulderwood Conglomerate. Overlies Dunedoo Fm (Permian); underlies Pilliga Sandstone (Jurassic). Max. thick in area: 70m. Equiv. to Wallingarah Fm of Loughan and Evans (1978).
REFID: 41330 Yoo, E.K. 1988 The Rocky Glen Ridge and Gilgandra Trough, beneath the Surat Basin. Geological Survey of New South Wales. Quarterly Notes 72 p17-26
Usage: Described (p21) Comments:
REFID: 41290 Hamilton, D.S. , Newton, C.B. , Smyth, M. , Gilbert, T.D. , Russell, N. , McMinn, A. , Etheridge, L.T. 1988 The petroleum potential of the Gunnedah Basin and overlying Surat Basin sequence, New South Wales. APEA Journal 28(1) p218-241
Usage: Described (p226) Comments:
REFID: 41472 Jian, F.X. , Ward, C.R. 1988 Triassic depositional systems in the Gunnedah Basin. Advances in the Study of the Sydney Basin 22 p55-57
Usage: Described (p56) Comments:
REFID: 40200 Hill, M.B.L. 1986 Geology of the Deriah Forest area - implications for the structure and stratigraphy of the Gunnedah Basin. Geological Survey of New South Wales. Quarterly Notes 62 p1-15
Usage: Described (p6) Comments:
REFID: 40767 Etheridge, L.T. 1986 New stratigraphic and structural data from the Surat and Gunnedah Basins and implications for petroleum exploration. Geological Survey of New South Wales. Quarterly Notes 66 p1-21
Usage: Described (p8) Comments:
REFID: 38614 Beckett, J. , Hamilton, D.S. , Weber, C.R. 1983 Permian and Triassic stratigraphy and sedimentation in the Gunnedah-Narrabri-Coonabarabran region. Geological Survey of New South Wales. Quarterly Notes 51 p1-16
Usage: Described (p12) Comments:
REFID: 66191 Danis, C. , O'Neill, C. , Lackie, M.A. 2010 Gunnedah Basin 3D architecture and upper crustal temperatures Australian Journal of Earth Sciences 57(4) pp483-505
Usage: Briefly described (p485 Fig.2, p485) Min age from reference: Early Triassic Max age from reference: Early Triassic Comments: Gunnedah Basin. Underlies the Deriah Formation, overlies the Digby Formation. Siltstone/claystone, interbedded sandstone/siltstone to sandstone, derived from New England Fold Belt.
REFID: 65118 Korsch, R.J. , Totterdell, J.M. , Fomin, T. , Nicoll, M.G. 2009 Contractional structures and deformational events in the Bowen, Gunnedah and Surat Basins, eastern Australia Australian Journal of Earth Sciences 56(3) p477-499
Usage: Briefly described (Fig 2 p479) Min age from reference: Triassic Max age from reference: Triassic Comments: Underlies the Deriah Formation in the Gunnedah Basin.
REFID: 65114 Korsch, R.J. , Totterdell, J.M. , Cathro, D.L. , Nicoll, M.G. 2009 Early Permian East Australian Rift System Australian Journal of Earth Sciences 56(3) p381-400
Usage: Briefly described (p385 Fig.3) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments:
REFID: 65113 Korsch, R.J. , Totterdell, J.M. 2009 Subsidence history and basin phases of the Bowen, Gunnedah and Surat Basins, eastern Australia Australian Journal of Earth Sciences 56(3) p335-353
Usage: Briefly described (Fig 4 p340) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments: Gunnedah Basin. Underlies the Deriah Formation.
REFID: 62357 Korsch, R.J. 2004 A Permian-Triassic retroforeland thrust system - the New England orogen and adjacent sedimentary basins, Eastern Australia IN McClay, K.R. (ed.) "Thrust Tectonics and Hydrocarbon Systems" American Association of Petroleum Geologists. Memoir 82 p515-537
Usage: Briefly described (p524 Fig. 7) Min age from reference: Early Triassic Max age from reference: Early Triassic Comments: Geological Province: Gunnedah Basin.
REFID: 60267 Ashley, P.M. , Dawson, M. W. , Sivell, W.J. , Wilson, J.S. , Dunlap, W.J. 2003 New data on the geology and geochronology of the area south of Tooraweenah, New South wales Geological Survey of New South Wales. Quarterly Notes 115 p13-32
Usage: Briefly described (p15, p28 Fig. 8) Min age from reference: Triassic Max age from reference: Triassic Comments:
REFID: 60266 Dawson, M. W. , Dunlap, W.J. 2003 New geochronology from the Coolah-Mendooran area: evidence for Middle Jurassic erosion in the southern Surat Basin Geological Survey of New South Wales. Quarterly Notes 115 p1-12
Usage: Briefly described (p2, p3 Tb. 1) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: Lacustrine and prograding delta sequence of quartz-lithic sandstone, siltstone and shale. Overlies the Digby Formation; overlain by the Deriah Formation. Geological Province: Gunnedah Basin.
REFID: 68003 Barnes, R. , Dawson, M. , Spiller, F. 2002 Geology - Integration and upgrade: NSW Western Regional Assessments: Brigalow Belt South Bioregion (Stage 2). A project undertaken for the Resource and Conservation Assessment Council; NSW Western regional assessments Geological Survey of New South Wales WRA / 19 157pp
Usage: Briefly described (p38 Fig.3-j, pp42-43, pp46-47, p128.) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: Gunnedah Basin, Brigalow Belt South Bioregion. Correlative of the Wianamatta Group (Hunter Coalfield). Deposited in a gross regressive cycle, from lacustrine to delta and ultimately to fluvial sedimentation; main source was the New England Fold Belt. , Overlies Digby and Black Jack Formations unconformably, and Wollar Sandstone. Is overlain by Deriah Formation and, unconformably, by Garrawilla Volcanics. , Basal section of lacustrine laminated siltstone and mudstone; then upward coarsening sequence of siltstone/claystone to sandstone; then fluvial, irregularly interbedded sandstone and siltstone sequences.
REFID: 68004 Hill, M. , McEvilly, R. , Watkins, J. 2002 Mineral and petroleum resources and potential: NSW Western Regional Assessments: Brigalow Belt South Bioregion (Stage 2) Geological Survey of New South Wales 235pp
Usage: Briefly described (p23 Table 1, p62, p139, p176.) Min age from reference: Triassic Max age from reference: Triassic Comments: Gunnedah Basin. Kaolin prospectivity is discussed. Acts as regional seal over Digby Formation reservoirs. A potential oil source rock. , Overlies Digby Formation. Is overlain by Deriah Formation. , Coarsening-up sequences of dark grey siltstone/sandstone laminite overlain by parallel-bedded or low-angle crossbedded quartzose sandstone.
REFID: 24159 Othman, R. , Ward, C.R. 2002 Thermal maturation pattern in the southern Bowen, northern Gunnedah and Surat Basins, northern New South Wales, Australia International Journal of Coal Geology 51 p145-167
Usage: Briefly described (p150 Fig.3, p151) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: Geological Province: Gunnedah Basin. Underlain by Digby Formation; overlain by (unconformably) Purlawaugh Formation.
REFID: 23566 Gurba, L.W. , Weber, C.R. 2001 Effects of igneous intrusions on coalbed methane potential, Gunnedah Basin, Australia International Journal of Coal Geology 46(2-4) p113-131
Usage: Briefly described (p116 Fig. 2) Min age from reference: Triassic Max age from reference: Triassic Comments: Geological Province: Gunnedah Basin
REFID: 23740 Othman, R. , Arouri, K.R. , Ward, C.R. , McKirdy, D.M. 2001 Oil generation by igneous intrusions in the northern Gunnedah Basin, Australia Organic Geochemistry 32 p1219-1232
Usage: Briefly described (p1221) Min age from reference: Triassic Max age from reference: Triassic Comments: Geological Province: Gunnedah Basin
REFID: 24243 New South Wales. Dept. Mineral Resources 2001 Strike Oil IN "Exploration NSW" PESA News. Supplement 2001 p22-24
Usage: Briefly described (p3 Fig.2) Min age from reference: Triassic Max age from reference: Triassic Comments:
REFID: 24092 Australian Bureau of Rural Sciences 2001 The Hydrogeology of the Great Artesian Basin Bureau Rural Sciences 2001 48p
Usage: Briefly described (p8 Fig.3) Comments:
REFID: 23982 Habermehl, M.A. 2001 Wire-line logged waterbores in the Great Artesian Basin, Australia - Digital data of logs and waterbore data aquired by AGSO. Australian Geological Survey Organisation. Bulletin 245 98pp
Usage: Briefly described (p58 Fig.18) Comments: Geological Province: Surat Basin.
REFID: 61776 Beckett, J. , Watson, N. 1999 A strato-tectonic interpretation of the Gunnedah Basin aeromagnetic data IN Flood, P. G. (ed.) "Regional Geology Tectonics and Metallogenesis: New England Orogen" - papers presented at a conference .... University of New England, Armidale 1999" - NEO '99 Conference University of New England. Earth Sciences 1v p189-202
Usage: Briefly described (p194 Fig. 3) Min age from reference: Middle Triassic Max age from reference: Triassic Comments: Geological Province: Gunnedah Basin. Quartz-lithic sandstone, laminite and siltstone.
REFID: 23043 Morgan, E.J. , Cameron, R.G. , Colquhoun, G.P. , Meakin, N.S. , Raymond, O.L. , Scott, M.M. , Watkins, J.J. , Barron, L.M. , Henderson, G.A.M. , Krynen, J.P. , Pogson, D.J. , Warren, A.Y.E. , Wyborn, D. , Yoo, E.K. , Glen, R.A. , Jagodzinski, E.A. 1999 Dubbo 1:250 000 geological sheet SI/55-4 (Second Edition) Geological Survey of New South Wales 1v map
Usage: Briefly described (Map Legend) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: In the Gunnedah Basin.
REFID: 50629 Pratt, W. 1998 Gunnedah Coalfield (North) Regional Geology 1:100 000 - First edition Geological Survey of New South Wales 1v Map
Usage: Briefly described (Map Legend) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: Geological Province: Gunnedah Basin. Underlies: Deriah Formation. Overlies: Digby Formation.
REFID: 50590 Raymond, O.L. , Warren, A.Y.E. , Henderson, G.A.M. 1997 Dubbo, New South Wales, 1:100 000 Geological Sheet 8633, Preliminary First edition New South Wales. Department of Mineral Resources/Australian Geological Survey Organisation 1v Map
Usage: Briefly described (Map Legend) Min age from reference: Triassic Max age from reference: Triassic Comments: Geological Province: Gunnedah Basin. Siltstone thinly interbedded with sandstone, minor conglomerate.
REFID: 23050 Brown, R.E. , Stroud, W.J. 1997 Inverell Metallogenic Map SH/56-5: Metallogenic Study and Mineral Deposit Data Sheets Geological Survey of New South Wales 1v 575p
Usage: Briefly described (p 82 Fig.17) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments: In the Gunnedah Basin.
REFID: 22579 McDonald, S.J. , Skilbeck, C.G. 1996 Authigenic fluid inclusions in lithic sandstone: a case study from the Permo-Triassic Gunnedah Basin, New South Wales. Australian Journal of Earth Sciences 43(2) p217-228
Usage: Briefly described (p219 Fig.2) Min age from reference: Triassic Max age from reference: Triassic Comments:
REFID: 44093 Scheibner, E. , Basden, H. (ed.) 1996 Geology of New South Wales - Synthesis. Volume 1 Structural Framework. Geological Survey of New South Wales. Memoir (Geology) 13(1) 295pp
Usage: Briefly described (p192 App. 1) Min age from reference: Triassic Max age from reference: Triassic Comments: Geological Province: Lachlan Fold Belt.
REFID: 61313 New South Wales Department of Mineral Resources 1995 Gunnedah Basin IN Stewart, R. and Adler, D. (eds.) "New South Wales Wales Petroleum Potential" - Bulletin New South Wales. Department of Mineral Resources. Coal and Petroleum Geology Branch. Bulletin 1 p81-111
Usage: Briefly described (p97, p94 Fig.G7) Min age from reference: Early Triassic Max age from reference: Early Triassic Comments: Distinctive shale/siltstone/sandstone sequence; basal part is a regionally extensive shale unit up to 40m thick and acts as a seal for Digby Formation "Quartz Sand" reservoirs. Disconformable over Digby Fm. Max. thickness: 215m. Geol.Prov: Gunnedah Basin
REFID: 61377 New South Wales. Dept. Mineral Resources 1995 Surat Basin IN Stewart, R. and Adler, D. (eds.) "New South Wales Wales Petroleum Potential" - Bulletin New South Wales. Department of Mineral Resources. Coal and Petroleum Geology Branch. Bulletin 1 p135-161
Usage: Briefly described (p149 Fig. SU8, p152, p154 Fig. SU9) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments: East of Coonamble Embayment - commonly referred to as the Wallingarah Fm, differentiated into Rivers Sst Mbr (lower) and Boothenba Sst Mbr (upper) with an undifferentiated middle section of sltst and sst. Geol.Prov: Gunnedah Basin.
REFID: 42679 Moloney, J. 1993 Gunnedah Basin Overview New South Wales. Department of Mineral Resources. Minfo 40 (July) p1-3
Usage: Briefly described (Fig.3 P3) Comments:
REFID: 721 Brown, R.E. , Brownlow, J.W. , Krynen, J.P. 1992 Manilla-Narrabri 1:250000 Metallogenic Map SH/56-9, SH/55-12. Metallogenic Study and Mineral Deposit Data Sheets Geological Survey of New South Wales. Metallogenic Map Series 1v Map
Usage: Briefly described (Map legend) Min age from reference: Ladinian Max age from reference: Anisian Comments: Finely laminated quartzose sandstone and siltstone interbedded with thick, massive or crossbedded sandstones; minor conglomerate. Geological Province: Gunnedah Basin.
REFID: 42809 Smyth, M. , Jian, F.X. , Ward, C.R. 1992 Potential petroleum source rocks in Triassic Lacustrine-Delta sediments of the Gunnedah Basin, eastern Australia. Journal of Petroleum Geology 15(4) p435-450
Usage: Briefly described (p436) Comments: see also Fig.2 p438.
REFID: 42284 Hamilton, D.S. 1991 Genetic stratigraphy of the Gunnedah Basin, NSW. Australian Journal of Earth Sciences 38(1) p95-113
Usage: Briefly described (Fig.11 P104) Comments:
REFID: 43091 Brown, R.E. , Krynen, J.P. , Brownlow, J.W. 1990 Manilla-Narrabri 1:250 000 Metallogenic Map Geological Survey of New South Wales 1v map
Usage: Briefly described (Map legend) Comments: In the Gunnedah Basin.
REFID: 66529 Huston, D.L. (ed) 2010 An assessment of the uranium and geothermal potential of north Queensland Geoscience Australia. Record 14
Usage: Mentioned (p12 Fig.5 ) Comments: Coonamble Embayment. , Overlies Digby Formation. Is overlain unconformably by Garrawilla Volcanics.
REFID: 65112 Waschbusch, P. , Korsch, R.J. , Beaumont, C. 2009 Geodynamic modelling of aspects of the Bowen, Gunnedah, Surat and Eromanga Basins from the perspective of convergent margin processes Australian Journal of Earth Sciences 56(3) p309-334
Usage: Mentioned (Fig 4 p314) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments: Unit in the Gunnedah Basin. Overlies Digby Formation, underlies the Deriah Formation.
REFID: 65115 Brakel, A.T. , Totterdell, J.M. , Wells, A.T. , Nicoll, M.G. 2009 Sequence stratigraphy and fill history of the Bowen Basin, Queensland Australian Journal of Earth Sciences 56(3) p401-432
Usage: Mentioned (Fig 2 p403) Min age from reference: Triassic Max age from reference: Triassic Comments: Underlies the Deriah Formation, overlies the Digby Formation in the Gunnedah Basin.
REFID: 63117 Holmes, W.B.K. , Anderson, H.M. 2007 The Middle Triassic Megafossil Flora of Basin Creek Formation, Nymboida Coal Measures, New South Wales, Australia. Part 6. Ginkgophyta Proceedings of the Linnean Society of New South Wales 128 p155-200
Usage: Mentioned (p156) Comments: Includes Benelong flora, near Dubbo.
REFID: 61612 Fielding, C.R. , Sliwa, R. , Holcombe, R.J. , Jones, A.T. 2001 A New palaeogeographic synthesis for the Bowen, Gunnedah and Sydney Basins of Eastern Australia IN Hill, K.C.and Bernecker, T. (eds) "Eastern Australasian Basins Symposium: a refocused energy perspective for the future" Petroleum Exploration Society of Australia. Special Publication 1v p269-278
Usage: Mentioned (p275, p276, p277, p270 Fig. 1) Min age from reference: Early Triassic Max age from reference: Early Triassic Comments: Geological Province: Gunnedah Basin.
REFID: 61772 Brownlow, J.W. 1999 Recurrent patterns in the Permo-Triassic development of the NEO and its environs IN Flood, P. G. (ed.) "Regional Geology Tectonics and Metallogenesis: New England Orogen" - papers presented at a conference .... University of New England, Armidale 1999" - NEO '99 Conference University of New England. Earth Sciences 1v p127-136
Usage: Mentioned (p129, 130) Max age from reference: Middle Triassic Comments:
REFID: 22864 Scheibner, E. , Basden, H. (ed.) 1998 Part 6(19). Early Permian-Middle Triassic. In: Geology of New South Wales - Synthesis. Geological Survey of New South Wales. Memoir (Geology) 13(2) p251-271
Usage: Mentioned (p265) Comments:
REFID: 22865 Scheibner, E. , Basden, H. (ed.) 1998 Part 7(22). Jurassic-Cretaceous. In: Geology of New South Wales - Synthesis. Geological Survey of New South Wales. Memoir (Geology) 13(2) p289-319
Usage: Mentioned (Fig22.8p315) Comments:
REFID: 61201 Pratt, W. 1996 Coal resources of the Werrie Basin NSW Department of Mineral and Petroleum Resources GS1996/528 pp19
Usage: Mentioned (p2) Min age from reference: Middle Triassic Max age from reference: Middle Triassic Comments:
REFID: 43582 Brown, R.E. 1995 Mineral deposits of the Bingara, Croppa Creek, Gravesend and Yallaroi 1:100 000 Sheet areas Geological Survey of New South Wales. Quarterly Notes 98 p1-32
Usage: Mentioned (Fig.5,p16) Min age from reference: Middle Triassic Max age from reference: Early Triassic Comments:
REFID: 42463 Smyth, M. , Mastalerz, M. 1991 Organic petrological composition of Triassic source rocks and their clastic depositional environments in some Australian sedimentary basins. International Journal of Coal Geology 18(3/4) p165-186
Usage: Mentioned (Fig.6 P173) Comments:
REFID: 42918 Yoo, E.K. , Tadros, V. 1989 Drilling at Ballimore. New South Wales. Department of Minerals and Energy. Minfo 23 p45
Usage: Mentioned (p45) Comments:
REFID: 41264 Bird, M.I. , Chivas, A.R. 1988 Stable-isotope evidence for low-temperature kaolinitic weathering and post-formational hydrogen-isotope exchange in Permian kaolinites. Chemical Geology 72(3) p249-265
Usage: Mentioned (p252) Comments:
REFID: 41451 Tadros, N.Z. 1988 Structural subdivision of the Gunnedah Basin. Geological Survey of New South Wales. Quarterly Notes 73 p1-20
Usage: Mentioned (p14) Comments:
REFID: 40952 Tadros, N.Z. , Whitehouse, J. , Moffitt, R.S. 1987 Geology and coal resources of the Narrabri area. Geological Survey of New South Wales. Quarterly Notes 68 p1-18
Usage: Mentioned (p8) Comments:
REFID: 40332 Martin, D.J. 1986 Sedimentary depositional environments and some igneous intrusions in the Sydney-Gunnedah Basin. Geological Society of Australia. Coal Geology Group. Journal 6 p19-25
Usage: Mentioned (p21) Comments:
REFID: 39063 Etheridge, L. 1983 Petroleum source rock and reservoir characteristics of the Gunnedah Basin. Geological Survey of New South Wales. Quarterly Notes 53 p5-22
Usage: Mentioned (Fig.3) Comments:
REFID: 37856 Russell, T.G. , Middleton, M.F. 1981 Coal rank and organic diagenesis studies in the Gunnedah Basin: preliminary results. Geological Survey of New South Wales. Quarterly Notes 45 p1-11
Usage: Mentioned (Table I) Comments:

Bibliographic references returned: 58
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