Legend Mining Ltd (ASX:LEG) has started its data acquisition phase for the 3D seismic survey over a 24 square kilometre area at Octagonal prospect within the Rockford Project, Fraser Range, Western Australia.
The company has sent in HiSeis field teams to conduct the data collection, with the final results of the survey scheduled for April to May 2023.
Legend's board visited Octagonal on November 14, 2022, to view field activities with managing director Mark Wilson saying, “It was great for the board to see first-hand the Octagonal 3D seismic survey in operation and ahead of schedule.
"The smooth execution of what is a sophisticated program of works by both HiSeis and Legend teams was obvious for all to see.”
Defining drill targets
HiSeis is conducting a 3D seismic survey at the Octagonal prospect, with the aim to define the architecture of the Octagonal Intrusive Complex in relation to the stratigraphic package, to a depth of investigation of a minimum of 1,500 metres below surface.
This survey will cost more than $1 million and is based on the results Legend is generating from drilling seismic targets at the Mawson prospect.
HiSeis has started the data acquisition phase of the 3D seismic survey which is planned to be completed by the end of November 2022.
Upon receipt of the results of this 3D seismic survey in April or May next year, Legend will conduct an intensive process of interrogation, including the incorporation of existing geophysical, geological, geochemical and structural datasets with the aim to define and rank new diamond drilling targets for the 2023 field season at Octagonal.
What’s next
Legend has a full schedule of work over the coming months including:
- detailed structural analysis of completed diamond drill holes at Mawson;
- collation of all downhole geophysical and petrophysical data from Mawson;
- reprocessing of the Mawson 3D seismic model with new downhole datasets;
- Octagonal seismic data acquisition underway October through November 2022;
- Octagonal seismic data processing November 2022-March 2023;
- final 3D seismic model for Octagonal to be received April-May 2023; and
- incorporate completed drilling, geophysics, geochemistry, and structural data with existing 3D modelling into the seismic model for diamond drilling target ranking and planning mid-2023.