Layer 10 Great Artesian Basin base of Jurassic-Cretaceous sequence surface (Great Artesian Basin Water Resource Assessment)

## **Abstract** \n\nThis dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied.\n\n\n\nLayer 10 Base of Jurassic-Cretaceous sequence surface\n\n\n\nSurface produced for the Great Artesian Water Resource Assessment (GABWRA) by Geoscience Australia (http://www.ga.gov.au). This surface was created for 3D visualisation of the Base of Jurassic-Cretaceous sequence.\n\n\n\nThe surface is available in the following formats\n\n1. GOCAD surface (.ts)\n\n2. ESRI grid\n\n3. ASCII grid (.grd)\n\n\n\nUse limitations: \n\n1. GOCAD surface requires program capable of reading GOCAD \\*.ts (triangulated surface) files\n\n2. ASCII grid data requires re-interpolation by end-user resulting in minor differences to accompanying GOCAD \\*.ts surface.\n\n\n\nThis layer is part of a set comprised of:\n\nLayer 01 3-second Digital Elevation Model surface (catalogue \\#75990)\n\nLayer 02 Base of Cenozoic surface (catalogue \\#75991)\n\nLayer 03 Base of Mackunda Formation and equivalents surface (catalogue \\#76021)\n\nLayer 04 Base of Rolling Downs Group surface (catalogue \\#76022)\n\nLayer 05 Base of Hooray Sandstone and equivalents surface (catalogue \\#76023)\n\nLayer 06 Base of Injune Creek Group surface (catalogue \\#76024)\n\nLayer 07 Base of Hutton Sandstone surface (catalogue \\#76025)\n\nLayer 05-07 Base of Algebuckina Sandstone surface (catalogue \\#76952)\n\nLayer 08A Base of Evergreen and Marburg formations (catalogue \\#76026)\n\nLayer 08B Base of Poolowanna Formation (catalogue \\#76953)\n\nLayer 09 Base of Precipice Sandstone and equivalents surface (catalogue \\#76027)\n\nLayer 10 Base of Jurassic-Cretaceous sequence surface (catalogue \\#76028)\n\n\n\nThis dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76028.\n\n## **Dataset History** \n\nSOURCE DATA: \n\nStratigraphic point control was provided by borehole stratigraphic picks from QPED (Geological Survey of Queensland, 2010), PIRSA (PIRSA, 2007), GABLOG (Habermehl, 2001), as well as picks by Phil O'Brien (2011) for the Clarence-Moreton Basin. These were used to constrain the existing Senior basement surface (Senior and associates, 1997), extended primarily on seismic interpretation. Because the Senior basement surface included Triassic sequences in the Surat and Eastern Eromanga basins, based on the then-existing Habermehl definition of the GAB, in areas overlying the Galilee and Bowen Basins, the Senior basement surface was replaced by the Senior Top- Moolayember surface (Senior and associates, 1997). With these adjustments, the modified Senior basement surface was accepted for the onshore GAB in Qld and NT. For South Australia, the PIRSA/ Water Commission interpreted surface (PIRSA, 2007) was used as this included latest seismic survey data. In the Carpentaria Basin, for the offshore region, the basement surface was compiled from McConachie & Stainton (1994). McConachie et.al. (1997) was used for the onshore region of the Carpentaria Basin. For the eastern Coonamble Embayment, contour data of Hawke and Cramsie (1989) was used. Elsewhere in NSW to the west, the stratigraphy data of Hinds (2011) was applied. \n\n\n\nBOUNDARIES: \n\nThe surface was clipped to the Assessment boundary (Ransley & Smerdon (Eds) 2012).\n\n\n\nPROCESSING: \n\nFor details on data processing, refer to "The three-dimensional visualisation of the Great Artesian Basin: A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment" Nelson G. et. al 2012\n\n\n\nREFERENCES:\n\nSee http://www.ga.gov.au/metadata-gateway/metadata/record/gcat_76028\n\n## **Dataset Citation** \n\nGeoscience Australia (2013) Layer 10 Great Artesian Basin base of Jurassic-Cretaceous sequence surface (Great Artesian Basin Water Resource Assessment). Bioregional Assessment Source Dataset. Viewed 10 December 2018, http://data.bioregionalassessments.gov.au/dataset/11dcfa96-2a3e-402d-b6f2-1e90290842f7.

**摘要**

本数据集及其元数据声明由第三方提交至生物区域评估计划（Bioregional Assessment Programme），本文档按原始提交内容原样呈现。

**第10层：侏罗系-白垩系序列基底表面**

该表面由澳大利亚地质调查局（Geoscience Australia，http://www.ga.gov.au）为大自流盆地水资源评估（Great Artesian Water Resource Assessment, GABWRA）制作，用于侏罗系-白垩系序列基底的三维可视化展示。

**可用数据格式**

1. GOCAD表面（GOCAD surface，.ts）
2. ESRI网格（ESRI grid）
3. ASCII网格（ASCII grid，.grd）

**使用限制**

1. GOCAD表面文件需使用支持读取GOCAD *.ts（三角化表面）格式的程序打开
2. ASCII网格数据需由终端用户进行重新插值，因此会与配套的GOCAD *.ts表面存在细微差异

**所属数据集系列**

本图层属于以下数据集集合：
图层01：3秒数字高程模型表面（目录编号#75990）
图层02：新生代基底表面（目录编号#75991）
图层03：马昆达组及其等效地层基底表面（目录编号#76021）
图层04：罗林斯群基底表面（目录编号#76022）
图层05：胡里砂岩组及其等效地层基底表面（目录编号#76023）
图层06：因朱恩溪群基底表面（目录编号#76024）
图层07：赫顿砂岩基底表面（目录编号#76025）
图层05-07：阿尔布基纳砂岩基底表面（目录编号#76952）
图层08A：埃弗格林组和马堡组基底表面（目录编号#76026）
图层08B：普洛万纳组基底表面（目录编号#76953）
图层09：普雷西皮斯砂岩组及其等效地层基底表面（目录编号#76027）
图层10：侏罗系-白垩系序列基底表面（目录编号#76028）

本数据集及相关元数据可通过目录编号76028在www.ga.gov.au获取。

**数据集历史**

**源数据**

地层点位控制数据来自QPED（Geological Survey of Queensland，2010年）、PIRSA（PIRSA，2007年）、GABLOG（Habermehl，2001年）的钻孔地层拾取数据，以及Phil O'Brien（2011年）为克拉伦斯-莫顿盆地提供的地层拾取结果。上述数据被用于约束现有Senior基底表面（Senior及其团队，1997年），主要通过地震解释进行扩展。由于当时基于Habermehl对大自流盆地（Great Artesian Basin, GAB）的定义，Senior基底表面包含了苏拉特盆地和东埃罗曼加盆地内的三叠系序列，因此在覆盖加拉西盆地和鲍恩盆地的区域，Senior基底表面被替换为Senior顶穆莱姆伯表面（Senior及其团队，1997年）。经上述调整后，修改后的Senior基底表面被昆士兰州和北领地的陆上大自流盆地所采用。南澳地区则采用PIRSA/水委员会编制的表面（PIRSA，2007年），该表面纳入了最新的地震勘测数据。在卡奔塔利亚盆地的近海区域，基底表面由McConachie & Stainton（1994年）的成果汇编而成；陆上区域则采用McConachie等（1997年）的研究成果。对于东部库纳姆巴海湾，采用了Hawke和Cramsie（1989年）的等值线数据。在新南威尔士州西部的其他区域，则应用了Hinds（2011年）的地层数据。

**边界处理**

该表面被裁剪至评估边界（Ransley与Smerdon主编，2012年）。

**数据处理流程**

有关数据处理的详细信息，请参阅《大自流盆地三维可视化：澳大利亚政府委托CSIRO完成的大自流盆地水资源评估报告》（Nelson G.等，2012年）。

**参考文献**

详见 http://www.ga.gov.au/metadata-gateway/metadata/record/gcat_76028

**数据集引用**

澳大利亚地质调查局（2013年）：第10层 大自流盆地侏罗系-白垩系序列基底表面（大自流盆地水资源评估）。生物区域评估源数据集。2018年12月10日查阅，http://data.bioregionalassessments.gov.au/dataset/11dcfa96-2a3e-402d-b6f2-1e90290842f7。