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Farmers Creek Formation STRATNO: 24609
Current: Yes Rank: Formation, beds Status: Formal State(s): NSW
Category: Resvd name published Usage: Defined Definition Card: Yes (View definition data)
Originator: C.Bembrick 30-JUN-80 Entry date: 01-JAN-88Last Update: 20-AUG-18
Replaced by: Previously known as:
Description: Claystone, carbonaceous claystone, mudstone, tuffaceous shale, coal.
Comments: See letter for more information. Wallerawang Subgroup, Illawarra Coal Measures.
Geological province: Sydney Basin
Type state: NSWReference section type:
Maximum thickness: 97mMinimum thickness:
Unit Age Event: deposition
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:
Caley Formation overlies Farmers Creek Formation unconformity
Gap Sandstone underlies Farmers Creek Formation conformity
Trinkey Formation is equivalent to Farmers Creek Formation
State Mine Creek Formation underlies Farmers Creek Formation
Katoomba Coal Member overlies Farmers Creek Formation
First Reference:
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

Definition Reference:
REFID: 40806 Standing Committee Coalfield Geol. NSW, 1986, Stratigraphic subdivision of the Illawarra Coal Measures in the Western Coalfield., Geological Survey of New South Wales, Records, 22(1), p145-158

Use on maps:


Full Bibliographic Details (ordered by usage, publication year)

REFID: 40806 Standing Committee Coalfield Geol. NSW 1986 Stratigraphic subdivision of the Illawarra Coal Measures in the Western Coalfield. Geological Survey of New South Wales, Records 22(1) p145-158
Usage: Defined (p158) Min age from reference: Permian Max age from reference: Permian Comments: Prob. Permian
REFID: 42657 Yoo, E.K. 1993 Stratigraphic and coal seam correlations of the Illawarra Coal Measures in the Ulan and Bylong areas, Western Coalfield, Sydney Basin, New South Wales Royal Society of New South Wales. Journal and Proceedings 126(1/2) p73-86
Usage: Described (p84) Comments:
REFID: 39232 Bembrick, C.S. 1983 Stratigraphy and sedimentation of the Late Permian Illawarra Coal Measures in the Western Coalfield, Sydney Basin, New South Wales. Royal Society of New South Wales. Journal and Proceedings 116(3/4) p105-117
Usage: Described (p111) Comments:
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 WRA / 20 235pp
Usage: Briefly described (p60 Table 6, p62.) Min age from reference: Late Permian Max age from reference: Late Permian Comments: Western Coalfield. Thickness from 20 m to 60 m. In parts of the Ulan area, it has been almost entirely eroded. Several thin coal layers may locally coalesce to form the "Woodford seam". , Unit in Wallerawang Subgroup. , Includes Middle River Coal Member and the "Woodford seam". , Overlies State Mine Creek Formation and Gap Sandstone. Is overlain by Katoomba Coal. , Claystone, carbonaceous claystone, siliceous claystone, siltstone, sandstone, coal and oil shale.
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 (p528 App.1 Tb.A1.9) Min age from reference: Late Permian Max age from reference: Late Permian Comments: Of the Wallerawang Subgroup (Illawarra Coal Measures). Contains the Middle River seam. Claystone, carbonaceous claystone, mudstone, tuffaceous shale, coal. Max. thickness: 40m. Geological Province: Sydney Basin. See also p526 App.1 Tb.A1.9.
REFID: 43194 Tadros, N.Z. 1993 The Gunnedah Basin, New South Wales. Geological Survey of New South Wales. Memoir (Geology) 12 649p
Usage: Briefly described (p116) Min age from reference: Late Permian Max age from reference: Late Permian Comments: Of Wallerawang Subgroup, Illawarra Coal Measures, western Sydney Basin. With Gap Sandstone, a lithofacies equivalent of the 'Tuffaceous coaly unit' (now Trinkey Formation) of the Black Jack Formation (now Black Jack Group), Gunnedah Basin.
REFID: 43146 Dove, A. , Lee, G. 1994 Breccia filled Diatreme in Permian Illawarra Coal Measures and Triassic Strata,Kandos,New South Wales Royal Society of New South Wales. Journal and Proceedings 127 (1-2) 39-45
Usage: Mentioned (Fig.2 p41) Comments: of Illawarra Coal Measures.
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 (Fig.4) 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: Mentioned (p14) Comments:

Bibliographic references returned: 9 This data is subject to Geoscience Australia's disclaimer and copyright statements.