https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30697 K_Ic* as the fracture toughness of the interface between layers relative to the lower gelatine layer K_IcInt / K_IcG. Our results show that K_Ic* influences the type of intrusion formed (dyke, sill or hybrid), and the magnitude of KIcInt impacted the growth rate of the sills. K_IcInt was determined during setup of the experiment by controlling the temperature of the upper layer T_m when it was poured into place, with T_m < 24 °C resulting in an interface with relatively low fracture toughness that is favourable for sill or dyke-sill hybrid formation. The experiments help to explain the dominance of dykes and sills in the rock record, compared to intermediate hybrid structures.]]> Wed 11 Apr 2018 16:07:31 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44702 Thu 20 Oct 2022 10:33:34 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18792 Sat 24 Mar 2018 07:51:03 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29556 Sat 24 Mar 2018 07:33:12 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26971 Sat 24 Mar 2018 07:27:00 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26031 1000). In all dynamic regimes d is proportional to Q and inversely proportional to the density difference between the fluids. Significant mobilization and entrainment of sulfide liquid, as indicated by predicted draw-up cones with d between 1 and 10 m, can occur under inertial conditions at high (Q ∼ 1–1000 m³s⁻¹) magma volumetric flow rates that are plausible for mid- to upper-crustal magma chambers. Although entrainment can potentially generate sulfide-rich magma pulses, it probably represents only an initial step in the mobilization of sulfide liquid and the genesis of magmatic sulfide deposits. Entrained sulfide liquids must be transported upwards and/or laterally from their site of mobilization towards their site of deposition, which may occur as coherent masses or as droplets depending on the dynamics of the system. Although entrainment may be viable at the scale of sills, dykes, chonoliths and lava flows, it may not be significant in scenarios where significant (>100 m) thicknesses of molten mafic magma must be expelled prior to reaching 1–10 m scale critical draw-up heights; in such scenarios gravitational backflow of sulfide may be a more viable mechanism for producing economic concentrations of Ni–Cu sulfide mineralization.]]> Sat 24 Mar 2018 07:26:28 AEDT ]]>