Seismic and gravity data over the Arunta Inlier have provided a reasonable degree of constraint on the crustal architecture of this province and have demonstrated that the crust-mantle boundary is uplifted by 25 km along the lithospheric-scale Redbank Thrust Zone, and that this offset is sufficient to cause the relative gravity high.
42.
In most cases, there is no particular " genetic " significance to the presence of rare mineralogy within a pegmatite, however it is possible to see some causative and genetic links between, say, tourmaline-bearing granite dikes and tourmaline-bearing pegmatites within the area of influence of a composite granite intrusion ( Mount Isa Inlier, Queensland, Australia ).
