Sedimentology and stratigraphy of an intra-cratonic basin coal seam gas play: Walloon Subgroup of the Surat Basin, eastern Australia

Large gas reserves are trapped in the coals of the Middle Jurassic (Callovian) Walloon Subgroup (lower part of the Injure Creek Group) in the Surat Basin, eastern Australia. The series is divided into the Juandah Coal Measures (upper), Tangalooma Sandstone and Taroom Coal Measures (lower). The upper and lower units are locally further subdivided. These economically important coals were deposited in an alluvial plain setting within an interior basin, which has no recorded contemporaneous marine influence. The coals are typically bituminous, perhydrous and low rank with a high volatile content. Despite individual ply (bench) thicknesses typically less than a metre, series of plies or seams of coals up to 10 m thick have historically been tentatively correlated across the entire play area (over 150 km).

[1]  Y. Aita,et al.  Jurassic palaeobiogeography of Australasia , 2000 .

[2]  J. McKellar.  Late Early to Late Jurassic palynology, biostratigraphy and palaeogeography of the Roma Shelf area, northwestern Surat Basin, Queensland, Australia : including phytogeographic-palaeoclimatic implications of the Callialasporites dampieri and Microcachryidi , 1998 .

[3]  C. Diessel.  Coal Bearing Depositional Systems , 1992 .

[4]  M. Macphail,et al.  Peat mounds of southwest Tasmania: possible origins , 1999 .

[5]  C. Diessel,et al.  Isometamorphic variations in the reflectance and fluorescence of vitrinite—a key to depositional environment , 1998 .

[6]  J. Filatoff.  Jurassic palynology of the Perth Basin, Western Australia , 1975 .

[7]  B. Balme.  Fossil in situ spores and pollen grains: an annotated catalogue , 1995 .

[8]  W. A. Glooschenko.  Book reviewMires: Swamp, bog, fen and moor. General studies. Ecosystems of the world, 4A: by A.J.P. Gore, Elsevier, Amsterdam, 1983, 440 pp. Price: $161.75 , 1985 .

[9]  C. Powell,et al.  Review of seafloor spreading around Australia. I. synthesis of the patterns of spreading , 1991 .

[10]  A. T. Wells,et al.  Sequence stratigraphy of Jurassic strata in the lower Surat Basin succession, Queensland , 2009 .

[11]  E. Barrón,et al.  The Triassic–Jurassic boundary in Asturias (northern Spain): Palynological characterisation and facies , 2006 .

[12]  D. Wray,et al.  Chemostratigraphy of Upper Carboniferous (Pennsylvanian) sequences from the Southern North Sea (United Kingdom) , 2010 .

[13]  H. Petersen,et al.  Lake-mire deposition, earthquakes and wildfires along a basin margin fault; Rønne Graben, Middle Jurassic, Denmark. , 2010 .

[14]  I. Jarvis,et al.  Inductively coupled plasma-atomic emission spectrometry in exploration geochemistry , 1992 .

[15]  M. Fletcher,et al.  Holocene vegetation and climate change from near Lake Pedder, south‐west Tasmania, Australia , 2007 .

[16]  D. Hodgson,et al.  Sequence stratigraphic interpretation of a Pennsylvanian (Upper Carboniferous) coal from the central Appalachian Basin, USA , 2011 .

[17]  F. E. Egler.  Ecosystems of the World , 1960 .

[18]  R. Goldring,et al.  Description and analysis of bioturbation and ichnofabric , 1993, Journal of the Geological Society.

[19]  I. Jarvis,et al.  Plasma spectrometry in the earth sciences: techniques, applications and future trends☆ , 1992 .

[20]  C. Diessel,et al.  On balanced and unbalanced accommodation/peat accumulation ratios in the Cretaceous coals from Gates Formation, Western Canada, and their sequence-stratigraphic significance , 2000 .

[21]  Peter J. Crosdale,et al.  Revised Geology and Coal Seam Gas Characteristics of the Walloon Subgroup - Surat Basin, Queensland , 2004 .

[22]  K. Bohacs,et al.  Sequence Stratigraphic Distribution of Coaly Rocks: Fundamental Controls and Paralic Examples , 1995 .

[23]  C. Diessel,et al.  Stratigraphic Style of Coal and Non-Marine Strata in a High Accommodation Setting: Falher Member and Gates Formation (Lower Cretaceous), western Canada , 2003 .

[24]  S. Scott,et al.  Coal petrology and coal seam gas contents of the Walloon Subgroup — Surat Basin, Queensland, Australia , 2007 .

[25]  S. McLoughlin,et al.  Australian Jurassic sedimentary and fossil successions: current work and future prospects for marine and non-marine correlation , 2009 .

[26]  G. Johnson,et al.  Application of Fuzzy C-means clustering to Paleoenvironmental Analysis: Example from the Jurassic, Central North Sea, UK , 2009 .

[27]  H. Binney,et al.  The interpretation of fen carr pollen diagrams: The representation of the dry land vegetation , 2005 .

[28]  C. A. Ross,et al.  Paleoclimate of the Kimmeridgian/Tithonian (Late Jurassic) world: I. Results using a general circulation model , 1992 .

[29]  N. Frederiksen.  Palynology of Mesozoic and lower Tertiary samples from northern, central, and southern Pakistan , 1992 .

[30]  R. Chiverrell,et al.  The significance of hiatal surfaces in coal seams , 2011, Journal of the Geological Society.

[31]  Ida-Maria Jansson.  An Early Jurassic conifer-dominated assemblage of the Clarence-Moreton Basin, eastern Australia , 2006 .

[32]  C. Fielding,et al.  Australian cretaceous terrestrial faunas and floras: biostratigraphic and biogeographic implications , 1992 .

[33]  C. Diessel,et al.  Stratigraphic Style of Coal and Non-Marine Strata in a Tectonically Influenced Intermediate Accommodation Setting: The Mannville Group of the Western Canadian Sedimentary Basin, South-Central Alberta , 2002 .