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occurs in the following areas: St Arnaud 7524, Dunolly 7624, Charlton 7525, Wedderburn 7625 and part of Ararat 7423 are superseded by St Arnaud SJ54-4. Bendigo 7724, Heathcote 7824 and Nagambie 7924 are superseded by Bendigo SJ55-1.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与区域变质作用的分布区域及变质作用类型，其成图基于1:100000比例尺下的航空磁法、放射性与重力测量数据综合解译成果。

当比例尺大于1:120000时，本数据集的展示内容为1:100000与1:250000比例尺地球物理填图的结合成果。近期完成的1:250000比例尺地球物理填图因数据质量与细节表现优异，已用于替代原有重合区域的1:100000比例尺填图成果。具体替换区域如下：原圣阿诺德（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替代；原本迪戈（Bendigo）7724、希思科特（Heathcote）7824与纳甘比（Nagambie）7924区域，由本迪戈SJ55-1替代。

巴莫拉尔（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（Grampians）7323的填图成果。

本数据集由维多利亚地质调查局（Geological Survey of Victoria）采集。随同本数据集一同提供的还包括其他相关数据集，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。