Laverton SH51-2 geological map. Eastern Goldfields Project digital data. First edition

Brief description

Mapping of outcrop geology on Laverton SH51-2 1:250 000 map sheet in the Eastern Goldfields, Western Australia, undertaken 1989-1995 by M.B.Duggan,P.R.Williams, E.A.Jagodzinski, M.Rattenbury, D.Champion, K.L.Currie,D.H.Blake, A.J.Stewart, I.Bastrakova and J.Martyn & Associates, as part of the National Geoscience Mapping Accord (NGMA). Briefly mapping consists of geological boundaries/units, faults, folds,veins, dykes, joints, linears, marker beds, trends, structural measurements, drill holes and mineral deposits.

Lineage

Maintenance and Update Frequency: irregular

Statement: Geological and geophysical themes were generated from field observations and interpretation using aerial photographs (1:250 0000 colour). Mineral deposit locations and information is largely sourced from the MINEDEX database maintained by GSWA. Topographic themes have been provided by AUSLIG and DOLA with agreement that public release of any topographic data by AGSO will be in non digital form only. Some amendments to the topographic data have been made by the authors. Lineage of topographic data, prior to receipt from AUSLIG and DOLA, is uncertain. Maps were compiled from unrectified photo overlays onto topographic bases supplied by AUSLIG and DOLA (see notes on topographic data above). Drainage and, where necessary, other topographic features (eg fence lines) were used for spatial control of the geological data. Compilations were digitally captured either by hand or automatically by scanning and vectorising procedures. Point data with database origins have been located largely by non-differential GPS. Some detail may have been generalised, repositioned, or omitted from the primary data for cartographic purposes.