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Around 35 people from various research institutions, service providers and the mining industry attended the workshop from across Australia.

Roberts also adds his commentary on the importance of pattern books, the history of the Birmingham tool industry, and comments on individual plates.With over 50 million modern human lifetimes elapsed since the planet formed around 4.5 Ga, geologic or deep time is, to say the least, difficult to grasp.But the effort pays, for with a feel for deep time comes a sense of its great power: Given enough time, almost anything energetically possible can happeneven at very large scales.Geologic understanding requires careful attention to time as well as three-dimensional space, so we'd better stop here first.If you're unfamiliar with geologic time terminology and abbreviations, take that detour now.