Geophysics (1:250,000), Geological Interpretation of Geophysical Features Arc

This dataset contains interpreted geological data, using combined interpretations of airborne magnetic, radiometric and gravity survey data, mapped at 1:250,000. \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occurs in the following areas: St Arnaud 7524, Dunolly 7624, Charlton 7525, Wedderburn 7625 and part of Ararat 7423 are superseded by St Arnaud SJ54-4. Bendigo 7724, Heathcote 7824 and Nagambie 7924 are superseded by Bendigo SJ55-1.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\nThe Ouyen SI54-15 and Horsham SJ54-3 map areas are datasets derived from a combination of Geological Interpretation of Basement Geophysical Features maps and Geological Interpretation of Post-Cratonic Geophysical Features maps performed by Moore, D. H.\n\nThis data has been collected by the Geological Survey of Victoria. This dataset is accompanied by other datasets representing sub-surface geological polygons, structural lines, miscellaneous lines and metamorphism.

本数据集包含解译后的地质数据，其基于航空磁测、放射性测量与重力测量数据的联合解译成果，制图比例尺为1:250000。

当比例尺大于1:120000时，展示内容将结合1:100000与1:250000比例尺的地球物理填图成果。近期完成的1:250000比例尺地球物理填图因具备更优的质量与细节精度，已用于取代原有的同区域1:100000比例尺填图成果。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以及阿拉拉特(Ararat)7423的部分区域，已由圣阿诺德SJ54-4取代；本迪戈(Bendigo)7724、希思科特(Heathcote)7824与纳甘比(Nagambie)7924则由本迪戈SJ55-1取代。

巴尔莫勒尔(Balmoral)7223、阿拉拉特(Ararat)7423、霍舍姆(Horsham)SJ54-3与圣阿诺德(St Arnaud)SJ54-4将在重叠区域取代格兰扁(Grampians)7323的填图成果。

奥伊恩(Ouyen)SI54-15与霍舍姆(Horsham)SJ54-3的制图区域数据集，由D.H.穆尔(Moore, D. H.)完成的基底地球物理特征解译图与克拉通后地球物理特征解译图联合生成。

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，涵盖地下地质多边形、构造线、杂项线体与变质作用相关数据。