Great Artesian Basin - Precipice Aquifer and equivalents - Thickness and Extent

The Precipice Aquifer & Equivalents - Thickness and Extent data set, is one of a set that represents the hydrostratigraphic units of the Great Artesian Basin, which include five major aquifers, four intervening aquitards, and the Cenozoic cover to the GAB.There are five layers in the Precipice Aquifer and Equivalents map dataA: Formation ExtentB: Outcrop extentC: Isopach RasterD: Isopach ContoursE: Data Point LocationsThe datasets have been derived from the lithostratigraphic intercepts in drillhole data from petroleum exploration wells, water bores, and stratigraphic wells. Seismic correlation and assessment of hydrogeological character based on electrofacies have not been used. The working datasest for this study has been derived primarily from the following databases:1. PEPS-SA (Petroleum Exploration and Production System - South Australia) (Department of Primary Industries and Regions SA, 2011)2. WaterConnect Groundwater database (Govt. of SA, 2011)3. QPED (Queensland Petroleum exploration database) (Geological Survey of Queensland, 2010).4. GABLOG (Great Artesian Basin Well Log Dataset) (Habermehl, 2001)5. Additional supplementary information was derived from published reports listed in the following section.Interpretations by OBrien & Wells, (1994); and O'Brien 2011 were used in generating the isopach data (thickness surface and contours) along the boundary of the Surat and Clarence-Moreton Basins.Isolated polygons in the North West have represent the extents of a basal Lower Jurassic sandstone underlying the Hutton Sandstone which is equivalent to the Precipice Sandstone,. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 81684. Associated report reference:Ransley, T., Radke, B., Feitz, A., Kellett, J., Owens, R., Bell, J. and Stewart, G., 2015. Hydrogeological Atlas the Great Artesian Basin. Geoscience Australia. Canberra. [available from www.ga.gov.au using catalogue number 79790]REFERENCES:References - main data sources- Department of Primary Industries and Regions SA (2011). Petroleum Exploration and Production System - South Australia (PEPS-SA). Version 2011-06-15. Retrieved from http://www.pir.sa.gov.au/petroleum/access_to_data/peps-sa_database- Geological Survey of Queensland (2010). Queensland Petroleum Exploration Data (QPED) database. Retrieved 25 September 2011, from http://mines.industry.qld.gov.au/geoscience/geoscience-wireline-log-data.htm. - Geoscience Australia, 2013. Mesozoic Geology of the Carpentaria and Laura Basins (dataset). Scale 1:6000000. Geoscience Australia, Canberra. [available from www.ga.gov.au using catalogue number 75840]- Gibson, D. L., B. S. Powell & Smart, J. (1974). Shallow stratigraphic drilling, northern Cape York Peninsula, 1973. Record 1974/76. Australia, Bureau of Mineral Resources.- Govt. of South Australia (2011). WaterConnect Groundwater database [available at https://www.waterconnect.sa.gov.au].- Habermehl, M. A. and J. E. Lau (1997). Hydrogeology of the Great Artesian Basin Australia (Map at scale 1:2,500,000). Canberra, Australian Geological Survey Organisation.- O'Brien, P. E. (2011). The eastern edge of the Great Artesian Basin: relationships between the Surat and Clarence-Moreton basins. Internal report. Canberra, Geoscience Australia.- Wells, A.T. , O'Brien, P.E. 1994 Lithostratigraphic framework of the Clarence-Moreton Basin IN Wells, A.T. and O'Brien, P.E. (eds.) "Geology and Petroleum Potential of the Clarence-Moreton Basin, New South Wales and Queensland" Australian Geological Survey Organisation. Bulletin 241 p4-47References - Seismic Surveys- noneReferences - Well Completion Reports and drilling logs- None

《悬崖含水层及等效层——厚度与分布范围数据集》属于大自流盆地（Great Artesian Basin，GAB）水文地层单元数据集组之一，该组数据集涵盖5个主要含水层、4个夹层隔水层以及大自流盆地的新生代盖层。悬崖含水层及等效层的地图数据集包含5个图层：A. 地层分布范围；B. 露头分布范围；C. 等厚栅格（Isopach Raster）；D. 等厚等值线（Isopach Contours）；E. 数据点位置。本数据集的数据来源为石油勘探井、供水井以及地层井的钻孔数据中的岩石地层截获信息，未使用地震对比以及基于电相（electrofacies）的水文地质特征评估方法。本研究的工作数据集主要源自以下数据库：1. 南澳州石油勘探与生产系统（PEPS-SA，Petroleum Exploration and Production System - South Australia）（南澳州第一产业与区域部，2011年）；2. 供水连接地下水数据库（WaterConnect Groundwater database，南澳州政府，2011年）；3. 昆士兰州石油勘探数据库（QPED，Queensland Petroleum exploration database，昆士兰州地质调查局，2010年）；4. 大自流盆地测井数据集（GABLOG，Great Artesian Basin Well Log Dataset，哈伯梅尔，2001年）；5. 其余补充信息源自下文列出的已发表报告。奥布莱恩与威尔斯（1994年）以及奥布莱恩（2011年）的解释成果被用于生成苏拉特盆地与克拉伦斯-莫顿盆地边界处的等厚数据（厚度表面与等值线）。西北部的孤立多边形代表位于赫顿砂岩（Hutton Sandstone）之下的基底下侏罗统砂岩的分布范围，该砂岩与悬崖砂岩（Precipice Sandstone）等效。本数据集及相关元数据可通过澳大利亚地球科学局（Geoscience Australia）官网www.ga.gov.au获取，目录编号为81684。相关报告参考文献：兰斯利、T.、雷德克、B.、费茨、A.、凯尔蒂、J.、欧文斯、R.、贝尔、J.与斯图尔特、G.，2015年。《大自流盆地水文地质图集》，澳大利亚地球科学局，堪培拉。[可通过www.ga.gov.au获取，目录编号79790]

参考文献：
一、主要数据源
- 南澳州第一产业与区域部（2011年）. 《南澳州石油勘探与生产系统（PEPS-SA）》，版本2011-06-15，获取自http://www.pir.sa.gov.au/petroleum/access_to_data/peps-sa_database
- 昆士兰州地质调查局（2010年）. 《昆士兰州石油勘探数据（QPED）数据库》，2011年9月25日获取自http://mines.industry.qld.gov.au/geoscience/geoscience-wireline-log-data.htm
- 澳大利亚地球科学局（2013年）. 《卡奔塔利亚盆地与劳拉盆地中生代地质（数据集）》，比例尺1:6000000，澳大利亚地球科学局，堪培拉。[可通过www.ga.gov.au获取，目录编号75840]
- 吉布森、D.L.、鲍威尔、B.S.与斯马特、J.（1974年）. 《1973年约克角半岛北部浅层地层钻探》，记录号1974/76，澳大利亚矿产资源局
- 南澳州政府（2011年）. 《供水连接地下水数据库》[可访问https://www.waterconnect.sa.gov.au获取]
- 哈伯梅尔、M.A.与劳、J.E.（1997年）. 《澳大利亚大自流盆地水文地质（比例尺1:2500000地图）》，堪培拉，澳大利亚地质调查组织
- 奥布莱恩、P.E.（2011年）. 《大自流盆地东缘：苏拉特盆地与克拉伦斯-莫顿盆地的关系》，内部报告，堪培拉，澳大利亚地球科学局
- 威尔斯、A.T.与奥布莱恩、P.E.（1994年）. 《克拉伦斯-莫顿盆地岩石地层框架》，载于威尔斯、A.T.与奥布莱恩、P.E.主编的《新南威尔士州与昆士兰州克拉伦斯-莫顿盆地地质与石油潜力》，澳大利亚地质调查组织公报241，第4-47页
二、地震勘探参考文献：无
三、完井报告与钻孔测井参考文献：无