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occurs in the following areas: St Arnaud 7524, Dunolly 7624, Charlton 7525, Wedderburn 7625 and part of Ararat 7423 are superseded by St Arnaud SJ54-4. Bendigo 7724, Heathcote 7824 and Nagambie 7924 are superseded by Bendigo SJ55-1.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区域与区域变质作用的分布范围及变质类型，基于航空磁测、放射性测量及重力测量数据的联合解译成果完成1:10万比例尺制图。当比例尺大于1:12万时，展示内容将结合1:10万与1:25万比例尺的地球物理填图成果。最新的1:25万地球物理填图因其优异的成果质量与细节精度，已用于替代原有重合区域的1:10万填图数据，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以及阿拉拉特（Ararat）7423的部分区域，均由圣阿诺德SJ54-4数据替代；本迪戈（Bendigo）7724、希思科特（Heathcote）7824与纳甘比（Nagambie）7924区域，由本迪戈SJ55-1数据替代。巴莫勒（Balmoral）7223、阿拉拉特7423、霍舍姆（Horsham）SJ54-3以及圣阿诺德SJ54-4的数据，在重叠区域内替代了格兰扁（Grampians）7323的填图成果。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、构造线及杂项线要素。