Interpreted bedrock geology lines 1:100 000 (DMIRS-052)

The digital ‘1:100 000 State interpreted bedrock geology of Western Australia’ comprises three layers: the primary 1:100 000 State interpreted bedrock geology, the 1:100 000 State interpreted bedrock geology lines , and the 1:100 000 State linear structure layer. The product covers approximately 30% of Western Australia, with a focus on areas of exposed Archean and Proterozoic bedrock. The linear structure layer refers primarily to pre-Cenozoic bedrock structures. This compilation is based on Geological Survey of Western Australia’s (GSWA) published Geological Information Series (GIS) and Geological Exploration Packages (GEP) for which digital 1:100 000 and 1:250 000 interpreted bedrock geology is available. The data packages included are: Kimberley 2017, Tanami–Arunta 2016, West Musgrave 2017, East Albany–Fraser Orogen 2014 (1:250 000 pre-Mesozoic), West Capricorn 2016, East Yilgarn 2017, South Yilgarn 2016, Murchison 2017, and Pilbara 2014. Geological interpretation in these packages is based on extensive fieldwork and interpretation of geophysical datasets (magnetics, radiometrics and gravity), remote sensing imagery (ASTER and LANDSAT), seismic and magnetotelluric profiles, drilling, and previously published and unpublished geological mapping. With the exception of minor topological corrections, the spatial integrity of the source packages is maintained. For adjacent but separately compiled packages, seamless interpretation along the edges of project areas has not been executed in order to preserve the spatial integrity of the source information. The nomenclature and hierarchy for the lithostratigraphic units in the polygon and line layers are based on weekly updates from the Explanatory Notes System (ENS). In order to provide the most up-to-date geological information for the units in question, attribution from the original source is modified to remove superseded stratigraphic units, display correct stratigraphic relationships, and include more recent geochronology. The source package of each feature is captured as an additional attribute field. Individual packages are available via the Department of Mines, Industry Regulation and Safety’s (DMIRS) eBookshop.License: Creative Commons AttributionTags: 100 000, Bedrock, GeologyContact: [e-mail]

《澳大利亚西部1:100000比例尺国家解译基岩地质数字数据集》包含三类图层：主1:100000比例尺国家解译基岩地质图层、1:100000比例尺国家解译基岩地质线要素图层，以及1:100000比例尺国家线性构造图层。
该数据集覆盖西澳大利亚州约30%的陆域范围，重点覆盖太古宙（Archean）与元古宙（Proterozoic）基岩出露区域。
线性构造图层主要指代前新生代基岩构造。
本数据集的汇编依托西澳大利亚地质调查局（Geological Survey of Western Australia, GSWA）发布的《地质信息系列》（Geological Information Series, GIS）与《地质勘探数据包》（Geological Exploration Packages, GEP），上述源数据均配套有1:100000及1:250000比例尺的解译基岩地质成果。
本次收录的数据包包括：2017年金伯利（Kimberley）数据集、2016年塔纳米-阿龙塔（Tanami–Arunta）数据集、2017年西马斯格雷夫（West Musgrave）数据集、2014年东奥尔巴尼-弗雷泽造山带（East Albany–Fraser Orogen）数据集（1:250000比例尺前中生代数据）、2016年西摩羯座（West Capricorn）数据集、2017年东伊尔冈（East Yilgarn）数据集、2016年南伊尔冈（South Yilgarn）数据集、2017年默奇森（Murchison）数据集，以及2014年皮尔巴拉（Pilbara）数据集。
上述数据包的地质解译工作基于大量野外调查、地球物理数据集（磁法、放射性测量与重力测量）解译成果、遥感影像（ASTER与LANDSAT）解译结果、地震与大地电磁剖面数据、钻探资料，以及已发表与未发表的地质填图成果完成。除少量拓扑修正外，所有源数据包的空间完整性均得到保留。
对于相邻但独立汇编的数据包，未对项目边界区域开展无缝解译处理，以保障源信息的空间完整性。
多边形与线要素图层内的岩石地层单元命名及层级体系，基于解释注记系统（Explanatory Notes System, ENS）的每周更新数据。
为向使用者提供目标地层单元的最新地质信息，本数据集对原始源数据的属性信息进行了优化修正：剔除已废止的地层单元、呈现正确的地层接触关系，并纳入最新的地质年代学数据。
每个要素对应的源数据包信息将作为附加属性字段进行存储。
单个数据包可通过矿产、工业监管与安全部（Department of Mines, Industry Regulation and Safety, DMIRS）的电子书商店获取。
授权协议：知识共享署名（Creative Commons Attribution）
标签：100000、基岩、地质学
联系方式：[e-mail]