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the slab hydration source that permits refractory mantle to flow) that may have promoted the propagation of the CLSC to replace this system. Spreading in the Lau back-arc basin is at present well-organized, as at mid-ocean ridges 5,12 , but, as we have shown, the supply of magma is modulated by mantle wedge compositional controls and arc melt additions.(More)
The ear's complex acoustic impedance locus for frequencies from 200 Hz to 2 kHz was obtained for 20 subjects screened for normal hearing. The purpose of the experiment was to observe "kinks" in the total driving point impedance locus of the ear, as measured by acoustic impedance in the ear canal at a depth comparable to that of clinical audiometry. Such(More)
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