TY - JOUR
T1 - How light element addition can lower core liquid wave speeds
AU - Helffrich, G.
PY - 2012/3
Y1 - 2012/3
N2 - Sound speeds in liquid mixtures are governed by an interplay between the properties of their end-members. The mixture's bulk modulus and density are each affected by end-member volumes and how those end-members mix. Particularly non-intuitive effects can arise when end-member mixing volumes are non-ideal, even mildly so. Non-ideality could also arise in metallic liquids of the Earth's outer core and exhibit some counterintuitive effects, whose origin is explained here.
AB - Sound speeds in liquid mixtures are governed by an interplay between the properties of their end-members. The mixture's bulk modulus and density are each affected by end-member volumes and how those end-members mix. Particularly non-intuitive effects can arise when end-member mixing volumes are non-ideal, even mildly so. Non-ideality could also arise in metallic liquids of the Earth's outer core and exhibit some counterintuitive effects, whose origin is explained here.
KW - Body waves
KW - Composition of the core
KW - Equations of state
UR - http://www.scopus.com/inward/record.url?scp=84857058595&partnerID=8YFLogxK
U2 - 10.1111/j.1365-246X.2011.05295.x
DO - 10.1111/j.1365-246X.2011.05295.x
M3 - Article (Academic Journal)
AN - SCOPUS:84857058595
SN - 0956-540X
VL - 188
SP - 1065
EP - 1070
JO - Geophysical Journal International
JF - Geophysical Journal International
IS - 3
ER -