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

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.At 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occurs in the following areas: St Arnaud 7524, Dunolly 7624, Charlton 7525, Wedderburn 7625 and part of Ararat 7423 are superseded by St Arnaud SJ54-4. Bendigo 7724, Heathcote 7824 and Nagambie 7924 are superseded by Bendigo SJ55-1. Balmoral 7223, Ararat 7423, Horsham SJ54-3 and St Arnaud SJ54-4 supersede Grampians 7323 where there is overlap.This 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与区域变质作用的分布范围及变质作用类型，其编图基于1:10万比例尺下航空磁法、航空放射性测量与重力勘查数据的联合解译成果。 当输出比例尺大于1:12万时，展示内容将结合1:10万与1:25万两种比例尺的地球物理编图成果。 近年完成的1:25万地球物理编图因其优异的成果质量与细节精度，已取代原有重合区域的1:10万编图成果，此类替代具体涉及以下区域： - 圣阿诺德（St Arnaud）7524、邓诺利（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（St Arnaud SJ54-4）取代； - 本迪戈（Bendigo）7724、希思科特（Heathcote）7824与纳甘比（Nagambie）7924，由本迪戈SJ55-1（Bendigo SJ55-1）取代； - 在重叠区域内，巴莫拉尔（Balmoral）7223、阿拉拉特7423、霍舍姆（Horsham）SJ54-3与圣阿诺德SJ54-4将取代格兰扁（Grampians）7323的编图成果。 本数据集由维多利亚州地质调查局（Geological Survey of Victoria）采集。 本数据集配套包含其他相关数据集，涵盖地质多边形与边界、地下地质多边形、构造线及杂项线状要素。