b'Seismic window use of seismic surveys is just becoming established in the mining sector and this brings new challenges and opportunities for geophysicists. To sum up, Antony Brockmann says Technology advances in seismic processing and cloud technologies (AI/ML) in recent years are driving step changes in hard rock seismic quality, efficiency and savings that we believe will move hard rock seismic from a Nice to have to an industry standard practice in minerals exploration, similar to oil & gas. One of the biggest issues we face is people basing their opinion of hard rock seismic on vintage data and out of date processing using standard oil and gas workflows; which are not fit-for-purpose in a hard rock environment. This is where HiSeis have changed the game through IP developed in hard rock processing from 2D and 3D projects around the world over last decade.Figure 2.Porphyry alteration and mineralisation model (after Silitoe 1995). Sub horizontal reflections seen on seismic are thought to be boundaries between alteration zones (indicated by red arrows). References any deposits had been missed beforedevelopment, but smaller details likeNelson R.G., 1984. Seismic reflection a mine is closed. Now it is beingplacement of the tailings dam away fromand mineral prospecting. Exploration used more often in the explorationa fault are also important. Geophysics 15, 229-250.cycle and in project planning so thatSillitoe, R. H., 1995. Exploration of mine developments are designedThe seismic industry needs to moveporphyry copper lithocaps. In: Mauk optimallytoo big and the process ison from the petroleum business, withJL, St George JD (eds) 1995 Pacrim inefficient, too small and there is littleits ever growing list of constraints, andCongress, Auckland, Proceedings, room for expansion. The economics ofmoving into the search for minerals mayAustralasian Institute of Mining and a mine depend on an optimally sizedbe just what it needs to survive. TheMetallurgy, Melbourne, pp 527532.Figure 3.Interpreted model of porphyry intrusives and their associated alteration haloes. Seismic data supports the presence of two porphyry intrusions separated by about 1400 m. Inset: uninterpreted seismic lines.39 PREVIEW AUGUST 2021'