Geophysical metamorphism (1:100,000), Geophysical Interpretation of Contact and Regional Metamorphism

This dataset displays areas of contact and regional metamorphism, and the style of metamorphism, mapped using using combined interpretations of airborne magnetic, radiometric and gravity survey data at 1:100,000.\n\nAt scales larger than 1:120,000 the display is a combination of both 1:100,000 and 1:250,000 geophysical mapping. Recent 1:250,000 geophysical mapping has been of such quality and detail it has been used to supersede older coincident 1:100,000 mapping. This occurs in the following areas: St Arnaud 7524, Dunolly 7624, Charlton 7525, Wedderburn 7625 and part of Ararat 7423 are superseded by St Arnaud SJ54-4. Bendigo 7724, Heathcote 7824 and Nagambie 7924 are superseded by Bendigo SJ55-1. \n\nBalmoral 7223, Ararat 7423, Horsham SJ54-3 and St Arnaud SJ54-4 supersede Grampians 7323 where there is overlap.\n\nThis data has been collected by the Geological Survey of Victoria. This dataset is accompanied by other datasets representing geological polygons and boundaries, sub-surface geological polygons, structural lines and miscellaneous lines.

本数据集展示了接触变质作用区、区域变质作用区及变质作用类型，其基于1:100000比例尺下航空磁法测量（airborne magnetic survey）、放射性测量（radiometric survey）与重力测量（gravity survey）数据的综合解译成果编制而成。
当比例尺大于1:120000时，本数据集的展示内容结合了1:100000与1:250000比例尺的地球物理编图（geophysical mapping）成果。近期完成的1:250000地球物理编图在质量与细节上均已达标，因此替代了同期同区域的旧版1:100000编图，涉及区域如下：圣阿诺德（St Arnaud）7524、达诺利（Dunolly）7624、查尔顿（Charlton）7525、韦德本（Wedderburn）7625及阿拉拉特（Ararat）7423部分区域由圣阿诺德SJ54-4替代；本迪戈（Bendigo）7724、希思科特（Heathcote）7824与纳甘比（Nagambie）7924由本迪戈SJ55-1替代。
巴尔莫勒尔（Balmoral）7223、阿拉拉特7423、霍舍姆（Horsham）SJ54-3及圣阿诺德SJ54-4在重叠区域内替代了格兰扁7323。
本数据集由维多利亚地质调查局（Geological Survey of Victoria）采集，配套包含地质多边形与边界、地下地质多边形、构造线及杂项线要素的其他数据集。