Auxiliary Material for Paper 2011GL047798

Hydrothermally-induced melt lens cooling and segmentation along the axis of 
fast- and intermediate-spreading centers

Fabrice J. Fontaine 
Institut de Physique du Globe de Paris, UMR 7154, CNRS, Sorbonne Paris Cite, 
Universite Denis Diderot Paris 7, 
Paris, France

Jean-Arthur Olive 
Ecole Normale Superieure de Paris, UMR 8538, CNRS, 
Paris, France

Mathilde Cannat and Javier Escartin 
Institut de Physique du Globe de Paris, UMR 7154, CNRS, Sorbonne Paris Cite, 
Universite Denis Diderot Paris 7, 
Paris, France

Thibaut Perol
Ecole Normale Superieure de Paris, UMR 8538, CNRS, 
Paris, France


Fontaine, F. J., J.-A. Olive, M. Cannat, J. Escartin, and T. Perol (2011), 
Hydrothermally-induced melt lens cooling and segmentation along the axis of 
fast- and intermediate-spreading centers, Geophys. Res. Lett., 38, L14307, 
doi:10.1029/2011GL047798.

Introduction

This auxiliary material contains two text files, a figure, and a table.

1. 2011gl047798-txts01.pdf
Text S1. The mathematical formalism used to describe the thermal coupling 
between the hydrothermal and magmatic layers.

2. 2011gl047798-txts02.pdf
Text S2. The analytical model to quantify the migration of a freezing front in 
an initially impermeable layer. This analytical model is used to backup our 
numerical simulations.

3. 2011gl047798-fs01.pdf
Figure S1. Effects of the hydrothermal layer permeability on key model outputs. 
(a) downward migration rate of the zero-melt front (1000 deg C isotherm) V^1000 
deg C_ max (in m/yr) and (b) heat flow F (in W/m^2) at the bottom of recharge 
(F^r) and discharge (F^d) zones. Numerical model outputs (dots) are compared 
with our simple analytical model (black lines). The "no melt" curve corresponds 
to a case where L -the latent heat parameter- is ignored in the expression of 
V^1000 deg C (see appendix 2).

4. 2011gl047798-ts01.doc
Table S1. Summary of notations.