GLO Geological Model Extracted Horizons Final Grid XYZ V01
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## **Abstract** \n\nThe dataset was derived by the Bioregional Assessment Programme. This dataset was derived from the Gloucester geological model. You can find a link to the parent dataset in the Lineage Field in this metadata statement. The History Field in this metadata statement describes how this dataset was derived.\n\n\n\nThe data set contains the XYZ values extracted from the structural geological model constructed in RMS geomodelling for the Gloucester Basin. Eight geological formations and their depths from the surface are included covering a grid across the Basin. Also included is a topography layer derived from the SRTM DEM (GUID: ca38ed31-e15d-4bb5-a7ef-0aeba3dad3f4) representing the surface elevation from which these depths are measured. The geological model is based on measured depths recorded in Well completion reports published by mining companies and consultancies.\n\n\n\nDepth structure maps (3D) extracted from the 3D grid - eroded and faulted geological model. True Vertical Depth SubSea (TVDss) Australian Height Datum (AHD), negative values represent elevation above sea level - RMS geomodeling.\n\n\n\nFiles in this dataset:\n\n\n\n1.xyz Alum Mountain Volcanics \n\n2.xyz Duralie Road Formation \n\n3.xyz Mammy Johnsons Formation \n\n4.xyz Waukivory Creek Formation \n\n5.xyz Dogtrap Creek Formation \n\n6.xyz Speldon Formation \n\n7.xyz Wenhams Formation \n\n8.xyz Jilleon Formation.\n\n\n\nin addition:\n\nTopo.xyz Topography \n\n\n\n\n\nCoordonate system: GDA_1994_MGA_Zone_56\n\n## **Dataset History** \n\nRMS geomodelling was used to construct the geological model for the Gloucester Basin. The data set contains the XYZ values extracted from the completed geological model. The model was built using data extracted from well completions reports published by mining companies and consultants which record the depth of various formations encountered during drilling works. These data were compiled into model input files (See data set: GLO Deep Well Locations and Depths of Formations V01 - e549473c-5b78-4279-8eeb-af86ca6522b3) used to build the RMS model.\n\n\n\nMajor fault trends and displacements were incorporated into to obtain a faulted geological model. These fault trends were included to accommodate misfits greater than 100 m between the extracted non-faulted and non-eroded horizons and the formation tops at wells. The RMS model determines the location of faults where misfits of greater than 100m are observed. This model was then eroded using the present-day surface topography. The final eroded and faulted model has a horizontal resolution of 200 x 200 m (x y), with 50 vertical layers for a total of 501,000 cells. The depth ranges between 665m above sea level and 1755 m below sea level.\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (XXXX) GLO Geological Model Extracted Horizons Final Grid XYZ V01. Bioregional Assessment Derived Dataset. Viewed 18 July 2018, http://data.bioregionalassessments.gov.au/dataset/18402b28-677e-45af-9860-067c258eea33.\n\n## **Dataset Ancestors** \n\n* **Derived From** [Gloucester Deep Wells Completion Reports - Geology](https://data.gov.au/data/dataset/0529ae9a-4d40-460d-b52a-fb0e5f646746)\n\n* **Derived From** [GLO DEM 1sec SRTM MGA56](https://data.gov.au/data/dataset/ca38ed31-e15d-4bb5-a7ef-0aeba3dad3f4)\n\n* **Derived From** [Geoscience Australia, 1 second SRTM Digital Elevation Model (DEM)](https://data.gov.au/data/dataset/9a9284b6-eb45-4a13-97d0-91bf25f1187b)\n\n* **Derived From** [GLO Deep Well Locations and Depths of Formations V01](https://data.gov.au/data/dataset/e549473c-5b78-4279-8eeb-af86ca6522b3)\n\n
## **摘要** 本数据集由生物区域评估计划（Bioregional Assessment Programme）衍生而来，其源数据为格洛斯特地质模型。您可在本元数据声明的「谱系字段（Lineage Field）」中找到父数据集的链接，元数据声明中的「历史字段（History Field）」则说明了本数据集的衍生过程。 本数据集包含从格洛斯特盆地RMS地质建模（RMS geomodelling）所构建的构造地质模型中提取的XYZ坐标值。数据集涵盖了横跨该盆地的网格数据，包含8个地质地层及其地表埋深。此外还包含由SRTM数字高程模型（SRTM DEM，GUID: ca38ed31-e15d-4bb5-a7ef-0aeba3dad3f4）衍生而来的地形图层，该图层代表了用于计算上述埋深的地表高程。本地质模型的构建依据为矿业公司与咨询机构发布的完井报告中记录的实测地层埋深数据。 本数据集包含从经过侵蚀修正与断层修正的三维网格地质模型中提取的三维深度构造图。数据采用以澳大利亚高程基准面（Australian Height Datum, AHD）为基准的真实水下垂直深度（True Vertical Depth SubSea, TVDss），其中负值代表海拔高于海平面，该数据来自RMS地质建模成果。 本数据集包含以下文件： 1.xyz Alum Mountain Volcanics（阿尔姆山火山岩） 2.xyz Duralie Road Formation（杜拉利路地层） 3.xyz Mammy Johnsons Formation（曼米约翰逊地层） 4.xyz Waukivory Creek Formation（沃基沃里溪地层） 5.xyz Dogtrap Creek Formation（道格特拉普溪地层） 6.xyz Speldon Formation（斯佩尔顿地层） 7.xyz Wenhams Formation（温哈姆地层） 8.xyz Jilleon Formation（吉利昂地层） 附加文件：Topo.xyz（地形图层） 坐标系：1994澳大利亚大地基准米制格网分区56（GDA_1994_MGA_Zone_56） ## **数据集历史** RMS地质建模（RMS geomodelling）技术被用于构建格洛斯特盆地地质模型，本数据集包含从该已完成地质模型中提取的XYZ坐标值。模型构建所用数据取自矿业公司与咨询机构发布的完井报告，此类报告记录了钻井过程中揭露的各地层埋深。相关数据被整理为模型输入文件（详见数据集：GLO Deep Well Locations and Depths of Formations V01 - e549473c-5b78-4279-8eeb-af86ca6522b3），用于构建RMS地质模型。 为构建带断层的地质模型，研究人员纳入了主要断层走向与位移参数。纳入断层参数的目的是修正非断层、非侵蚀地层的提取结果与井眼地层顶界之间超过100米的拟合偏差。RMS地质模型可自动识别拟合偏差超过100米的断层位置。随后基于现今地表地形对该模型进行侵蚀修正。最终的经侵蚀与断层修正的模型水平分辨率为200×200米（x、y方向），包含50个垂直层，总单元格数为501000个，埋深范围为海拔665米至海平面下1755米。 ## **数据集引用** 生物区域评估计划（XXXX）. GLO地质模型提取地层最终网格XYZ V01. 生物区域评估衍生数据集. 2018年7月18日查阅, http://data.bioregionalassessments.gov.au/dataset/18402b28-677e-45af-9860-067c258eea33. ## **数据集溯源** * **数据源自** [格洛斯特深井完井报告-地质](https://data.gov.au/data/dataset/0529ae9a-4d40-460d-b52a-fb0e5f646746) * **数据源自** [GLO 1秒分辨率SRTM数字高程模型 MGA56](https://data.gov.au/data/dataset/ca38ed31-e15d-4bb5-a7ef-0aeba3dad3f4) * **数据源自** [澳大利亚地球科学局，1秒分辨率SRTM数字高程模型（DEM）](https://data.gov.au/data/dataset/9a9284b6-eb45-4a13-97d0-91bf25f1187b) * **数据源自** [GLO 深井位置与地层埋深 V01](https://data.gov.au/data/dataset/e549473c-5b78-4279-8eeb-af86ca6522b3)
