The age of the inner core

By Stéphane Labrosse, J. Poirier, Jean-Louis Le Mouël. 2001

316 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/23fe2d0d7bee4ed9557d48348a10ae62781df378

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In Geophysics

Citations in the corpus

Gross thermodynamics of two-component core convection (2004, result): “(vii) The cooling models predict a young inner core with an age range 0.3–1.8 Gyr, all younger than the geomagnetic field and, therefore, the age of the dynamo, in agreement with other recent calculations (Labrosse et al. 2001).”
Internal structure of massive terrestrial planets (2005, background): “The exa t ontributions are not well known, thus the thi kness of the boundary layer at CMB and the heat ondu ted down the adiabat in the ore are un ertain (Labrosse et al. 2001).”
The intensity of the geomagnetic field in the late-Archaean: new measurements and an analysis of the updated IAGA palaeointensity database (2009, background): “…the distribution of absolute palaeointensity determinations from two periods of time which are each long enough to average out mantle-derived variations and which are separated by a period of time likely to be sufficiently long to have allowed significant inner core growth (Labrosse et al., 2001).”
The influence of potassium on core and geodynamo evolution (2003, methodology): “We will adopt the analytical density and temperature expressions obtained by Labrosse et al. (2001) to calculate entropy and energy.”
Thermal and magnetic evolution of the Earth’s core (2003, methodology): “…temperature profile is Tad(r, t) = Ts[c(t)] exp [ c2(t)− r2 L2T ] , withLT = √ 3Cp 2παcρcG = 6042± 1400 km. (14) The solidification temperatureTs can be expressed in a similar form by use of the Lindemann law of melting, giving(Labrosse et al., 2001): Ts(r) = Ts0 exp [ −2 ( 1 − 1 3γ ) r2 L2T ] .”
Modelling the palaeo-evolution of the geodynamo (2009, background): “(37) can be integrated backwards in time from present (Labrosse et al. 2001) until the inner core age a (Here time is measured before present, therefore a > 0).”
Energetics of the Core (2015, methodology): “Higher Ohmic dissipation rates, later inner core formation and higher thermal conductivities all imply a larger core temperature drop, and a higher initial temperature (Labrosse et al. 2001, Buffett 2002).”
The paleomagnetism of single silicate crystals: Recording geomagnetic field strength during mixed polarity intervals, superchrons, and inner core growth (2006, background): “Most generally predict that the solid inner core started to grow no earlier than approx- imately 2.5–2.7 billion years ago [e.g., Labrosse et al., 2001; Labrosse, 2003; Labrosse and Macouin, 2003; Buffett, 2003], but some prefer a greater age [e.g., Gubbins et al., 2004].”