In 2008, a ZTEM natural field EM and magnetic survey was flown over the world-class, >250 Mt SEDEX deposits at Howard’s Pass in the Selwyn Basin, Yukon. The AEM data provide insights into regional structures and intrusions. They also reveal a correlation between enhanced conductivity along strike and the clustering of deposits at Howard’s Pass.

In March 2012, a helicopter-borne VTEM survey was flown over the Cerro Quema high sulphidation (HS) epithermal gold deposits. The geophysical data obtained were analysed for geophysical signatures characteristic of HS epithermal gold deposits. The success of this survey points to the applicability of EM-Mag-Spec surveys for the exploration of similar deposits.

The Romero gold-copper-zinc-silver deposits in the Dominican Republic are of the intermediate sulphidation epithermal type. Ground IP\resistivity results are compared to ZTEM passive airborne electromagnetics over the deposit region. The ZTEM results show good correlation with ground IP\resistivity results and identify a previously unknown deep (>500 m) continuity between the Romero deposits.

Data from the Far South project were acquired using a sub-audio magnetic (SAM) survey, set up in galvanic configuration. The galvanic source electromagnetic (GSEM) data were used to identify conductive responses. Modelling of the GSEM responses was attempted with some success, showing this method to be an effective reconnaissance tool.

The North Taranaki Basin contains widespread (2D) seismic coverage and numerous wells. The basin hydrocarbon potential remains unproven. An active petroleum system is confirmed by hydrocarbon shows and non-commercial oil and gas discoveries (Karewa-1 and Kora-1). 3D seismic interpretation and amplitude-versus-offset (AVO) analysis support the renewed potential of the basin.

We present a study of prestack depth imaging for data from the South China Sea, including complex geologies, using an enhanced work flow. The imaging results and data analysis prove that the enhanced work flow consisting of cutting edge technologies is effective when complex geologies are present.

An airborne gravity gradiometry and high-resolution aeromagnetic survey conducted in Lake Tanganyika within the East African Rift System has been interpreted to demonstrate sedimentary sequences and structures prospective for petroleum. Numerous play types analogous to the Lake Albert oil discoveries further north in Uganda are revealed by further surveys.

We provide detailed geophysical characterisation of porphyry style Cu-Au mineralisation of the Atlántida project, located under 25–80 m post-mineral gravels of the Atacama Desert, Northern Chile. Clear geological controls on the geophysical signatures of the deposit are resolved via the use of petrophysical studies and incorporation of drill testing results.

The Eureka massive sulphide lens forms part of the Stockman Project in north-east Victoria. Eureka was discovered in early 2013, combining the interpretation of two subtle downhole electromagnetic anomalies with a robust geological model, with additional support from short-wave infrared and structural modelling.