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	<title>ISTerre - Institut des Sciences de la Terre</title>
	<link>https://www.isterre.fr/</link>
	<description>Site web de l'Institut des Sciences de la Terre (ISTerre), unit&#233; mixte de recherche du CNRS, de l'Universit&#233; Grenoble Alpes, de l'Universit&#233; Savoie Mont Blanc, de l'IRD et de l'IFSTTAR</description>
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		<title>ISTerre - Institut des Sciences de la Terre</title>
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<item xml:lang="fr">
		<title>Publications</title>
		<link>https://www.isterre.fr/annuaire/member-web-pages/marie-pierre-doin/article/publications.html</link>
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		<dc:date>2013-07-16T09:51:05Z</dc:date>
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		<dc:language>fr</dc:language>
		<dc:creator>Marie-Pierre DOIN</dc:creator>



		<description>
&lt;p&gt;1995 &lt;br class='autobr' /&gt;
A. Bonneville and R. P. Von Herzen and F. Lucazeau and A. Provost and B. Ollivier and A. Desautez and M. P. Doin and A. Eliason and L. Faynot and M. Godard and P. Gouze and J. Guilbert and J. Kirklin and S. Klarika and L. Lin and B. Malengreau and D. Rousset and C. Wolfteich, Une lithosphere amincie sous le point chaud de la Reunion ? Contraintes apportees par de nouvelles mesures de flux de chaleur sur la ride des Mascareignes, Bull. Soc. Geol. France, 32, 909-915, 1995 &lt;br class='autobr' /&gt;
1996 &lt;br class='autobr' /&gt;
M. (&#8230;)&lt;/p&gt;


-
&lt;a href="https://www.isterre.fr/annuaire/member-web-pages/marie-pierre-doin/" rel="directory"&gt;Marie-Pierre DOIN&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;h4 class=&#034;spip&#034;&gt;1995&lt;/h4&gt;
&lt;p&gt;A. Bonneville and R. P. Von Herzen and F. Lucazeau and A. Provost and B. Ollivier and A. Desautez and M. P. Doin and A. Eliason and L. Faynot and M. Godard and P. Gouze and J. Guilbert and J. Kirklin and S. Klarika and L. Lin and B. Malengreau and D. Rousset and C. Wolfteich, Une lithosphere amincie sous le point chaud de la Reunion ? Contraintes apportees&lt;br class='autobr' /&gt;
par de nouvelles mesures de flux de chaleur sur la ride des Mascareignes,&lt;br class='autobr' /&gt;
Bull. Soc. Geol. France, 32, 909-915, 1995&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;1996&lt;/h4&gt;
&lt;p&gt;M. P. Doin and L. Fleitout and D. P. McKenzie, Geoid anomalies and the structure of continental and oceanic lithospheres, J. Geophys. Res., 101, 16119-16135, 1996&lt;/p&gt;
&lt;p&gt;M. P. Doin and L. Fleitout, Thermal evolution of the oceanic lithosphere : an alternative view, Earth Planet. Sci. Lett., 142, 121-136, 1996&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;1997&lt;/h4&gt;
&lt;p&gt;P. E. van Keken and S. D. King and H. Schmeling and U. R. Christensen and D. Neumeister and M.-P. Doin A comparison of methods for the modeling of thermochemical convection J. Geophys. Res., 102, 22477-22495, 1997&lt;/p&gt;
&lt;p&gt;M.-P. Doin and L. Fleitout and U. Christensen, Mantle convection and stability of depleted and undepleted continental lithosphere, J. Geophys. Res., 102, 2771-2787, 1997&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;1999&lt;/h4&gt;
&lt;p&gt;C. Dumoulin and M.-P. Doin and L. Fleitout, Heat transport in stagnant lid convection with temperature- and pressure-dependent Newtonian or non-Newtonian rheology, J. Geophys. Res., 104, 12759-12778, 1999&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2000&lt;/h4&gt;
&lt;p&gt;M. P. Doin and L. Fleitout, Flattening of the oceanic topography and geoid : Thermal versus dynamic origin, Geophys. J. Int., 143, 582-594, 2000&lt;/p&gt;
&lt;p&gt;C. Prijac and M.P. Doin and J.-M. Gaulier and F. Guillocheau, Subsidence of the Paris Basin and its bearing on the late Variscan lithosphere evolution : a&lt;br class='autobr' /&gt;
comparison between Plate and Chablis models, Tectonophysics, 323,1-38, 2000&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2001&lt;/h4&gt;
&lt;p&gt;C. Dumoulin and M.-P. Doin and L. Fleitout, Numerical simulations of the cooling of an oceanic lithosphere above a convective mantle, Phys. Earth Planet. Int., 125, 45-64, 2001&lt;/p&gt;
&lt;p&gt;C. Dumoulin and M.-P. Doin and L. Fleitout, On the interpretation of the relationship between seafloor subsidence rate and the height of the ridge,&lt;br class='autobr' /&gt;
Geophys. J. Int., 146, 691-698, 2001&lt;/p&gt;
&lt;p&gt;M.P. Doin and P. Henry, Subduction initiation and continental crust recycling :&lt;br class='autobr' /&gt;
the roles of rheology and eclogitization, Tectonophysics, 342, 163-191, 2001&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2002&lt;/h4&gt;
&lt;p&gt;Morency C, Doin MP, Dumoulin C., Convective destabilization of a thickened continental lithosphere, Earth Planet. Sci. Letter, Earth Planet. Sci. Lett., 202, 303-320, 2002&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2003&lt;/h4&gt;
&lt;p&gt;Robin C., P. Allemand, E. Burov, M.-P. Doin, F. Guillocheau, G. Dromart &amp; J.-P. Garcia, Thermo-mechanical characteristics of the Paris Basin (Triassic-Pleistocene) : from 3D stratigraphic database to numerical models, Special Issue for the Geological Society of London, in &#034; New Insights into Structural Interpretation and Modeling &#034;, Geol. Soc. Sp. Pub. of London, 212, p. 225-250, 2003&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2004&lt;/h4&gt;
&lt;p&gt;Morency C, Doin MP, Numerical simulation of the mantle lithosphere delamination, J. Geophys. Res., 109 (B3) : Art. No. B03410 MAR 20 2004&lt;/p&gt;
&lt;p&gt;Le Solleuz A., Doin M.-P., Robin C., and F. Guillocheau, From mountain belt collapse to sedimentary basin development : 2-D thermal model based on inversion of stratigraphic data in the Paris Basin, Tectonophysics, v386, p1-27, 2004&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2005&lt;/h4&gt;
&lt;p&gt; Dumoulin C, Doin MP, Arcay D, et al., Onset of small-scale instabilities at the base of the lithosphere : scaling laws and role of pre-existing lithospheric structures, GEOPHYSICAL JOURNAL INTERNATIONAL 160 (1) : 344-356 JAN 2005&lt;/p&gt;
&lt;p&gt;Arcay D., Tric E., and Doin M.-P., Numerical simulations of subduction zones : effect of slab dehydration on the mantle wedge dynamics, Phys. Earth Planet. Int., 149 (1-2) : 133-153 MAR 15 2005&lt;/p&gt;
&lt;p&gt;Morency C./ Doin M.-P., Dumoulin C., 3-D numerical simulations of mantle flow beneath mid-ocean ridges, J. Geophys. Res., VOL. 110, B11407, doi:10.1029/2004JB003454, 2005&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2006&lt;/h4&gt;
&lt;p&gt;Thoraval, C., A. Tommasi, and M. Doin (2006), Plume-lithosphere interaction beneath a fast moving plate, Geophys. Res. Lett., 33, L01301, doi:10.1029/2005GL024047.&lt;/p&gt;
&lt;p&gt;Arcay, D., M.-P. Doin, E. Tric, R. Bousquet, and C. de Capitani (2006), Overriding plate thinning in subduction zones : Localized convection induced by slab dehydration, Geochem. Geophys. Geosyst., 7, Q02007, doi:10.1029/2005GC001061.&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2007&lt;/h4&gt;
&lt;p&gt;Cavali&#233; O., M.-P. Doin, C. Lasserre, P. Briole (2007), Ground motion measurement in the Lake Mead area, Nevada, by differential synthetic aperture radar interferometry time series analysis : Probing the lithosphere rheological structure, J. Geophys. Res., 112, B03403, doi:10.1029/2006JB004344.&lt;/p&gt;
&lt;p&gt;2007- Arcay, D., E. Tric, and M. P. Doin, Slab surface temperature in subduction zones : Influence of the interplate decoupling depth and upper plate thinning processe, Earth and Planetary Science Letters, doi:10.1016/j.epsl.2006.12.027&lt;/p&gt;
&lt;p&gt; Arcay D, Doin MP, Tric E, et al. (2007), Influence of the precollisional stage on subduction dynamics and the buried crust thermal state : Insights from numerical simulations TECTONOPHYSICS 441 (1-4) : 27-45 AUG 15&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2008&lt;/h4&gt;
&lt;p&gt;Arcay, D., S. Lallemand, and M.-P. Doin (2008), Back-arc strain in subduction zones : Statistical observations versus numerical modeling, Geochem. Geophys. Geosyst., 9, Q05015, doi:10.1029/2007GC001875.&lt;/p&gt;
&lt;p&gt;Cavali&#233; 0., C. Lasserre, M.-P. Doin, G. Peltzer, J. Sun, X. Xu and Z.-K. Shen (2008), Measurement of interseismic strain across the Haiyuan fault (Gansu, China), by InSAR, Earth and Planetary Science Letters, 275, p 246-257, doi:10.1016/j.epsl.2008.07.057&lt;/p&gt;
&lt;p&gt;Dumoulin C., G. Choblet, and M.P. Doin (2008), Convective interactions between oceanic lithosphere and asthenosphere : Influence of a transform fault, Earth and Planetary Science Letters, 274, p. 301-309, doi:10.1016/j.epsl.2008.07.017&lt;/p&gt;
&lt;p&gt;V. Pinel, A. Hooper , S. De la Cruz-Reyna, G. Reyes-Davila, M. P. Doin, Study of the deformation field of two active Mexican stratovolcanoes (Popocatepetl and Colima Volcano) by time series of InSAR data., Fringe Workshop Proceedings, ESA Special Publication SP-649, 2008&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2009&lt;/h4&gt;
&lt;p&gt;P. Lopez Quiroz, M.-P. Doin, F. Tupin, P. Briole, J.-M. Nicolas, Time series analysis of Mexico city subsidence constrained by radar Interferometry, Journal of Applied Geophysics, Volume : 69 Issue : 1 Special Issue : Sp. Iss. SI Pages : 1-15 Published : SEP 2009, DOI : 10.1016/j.jappgeo.2009.02.006&lt;/p&gt;
&lt;p&gt; M.-P. Doin, C. Lasserre, G. Peltzer, 0. Cavali&#233;, C. Doubre, Corrections of stratified tropospheric delays in SAR interferometry : validation with global atmospheric models, Journal of Applied Geophysics, Volume : 69 Issue : 1 Special Issue : Sp. Iss. SI Pages : 35-50 Published : SEP 2009, DOI : 10.1016/j.jappgeo.2009.03.010 &lt;a href='https://www.isterre.fr/sites/www.isterre.fr/IMG/pdf/doin_APPGEO_2009.pdf' class=&#034;spip_in&#034; type='application/pdf'&gt;PDF&lt;/a&gt;&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2010&lt;/h4&gt;
&lt;p&gt; Grandin R, Socquet A, Doin MP, Jacques E, de Chabalier JB, King GCP, Transient rift opening in response to multiple dike injections in the Manda Hararo rift (Afar, Ethiopia) imaged by time-dependent elastic inversion of interferometric synthetic aperture radar data, JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Volume : 115 Article Number : B11499 Published : NOV 13 2010,DOI : 10.1029/2010JB008020&lt;/p&gt;
&lt;p&gt;M.-P. Doin, C. Twardzik, G. Ducret, C. Lasserre, S. Guillaso, and S. Jianbao, Crustal flexure around Siling Co lake in Tibet observed by InSAR, Proc. Dragon 2 Program Mid-Term Results 2008 2010, Guilin City, People's Republic of China 17-21 May 2010 (ESA SP-684, October 2010)&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2011&lt;/h4&gt;
&lt;p&gt;A. Julea, N. M&#233;ger, P. Bolon, C. Rigotti, M.-P. Doin, C. Lasserre, E. Trouv&#233; and V. Lazarescu., Unsupervised Spatiotemporal Mining of Satellite Image Time Series using Grouped Frequent Sequential Patterns, IEEE Transactions on Geoscience and Remote Sensing, 1417-1430 DOI : 10.1109/TGRS.2010.2081372, vol. 49, issue 4, 2011.&lt;/p&gt;
&lt;p&gt;V. Pinel, A. Hooper , S. De la Cruz-Reyna, G. Reyes-Davila, M. P. Doin, P. Bascou, The challenging retrieval of the displacement field from InSAR data for andesitic stratovolvanoes : Case study of Popocatepetl and Colima Volcano, Mexico, Journal of Volcanology and Geothermal Research, v 200, 49-61 DOI : 10.1016/j.jvolgeores.2010.12.002, 2011&lt;/p&gt;
&lt;p&gt;Jolivet, R., R. Grandin, C. Lasserre, M.-P. Doin, and G. Peltzer (2011), Systematic InSAR tropospheric phase delay corrections from global meteorological reanalysis data, Geophys. Res. Lett., 38, L17311, doi:10.1029/2011GL048757&lt;/p&gt;
&lt;p&gt;Ducret G., M. P. Doin, R. Grandin , C. Lasserre and S. Guillaso (2011). DEM corrections before unwrapping in a small baseline strategy for InSAR time series analysis. Proc. Igarss., IEEE, p 1353-1356&lt;/p&gt;
&lt;p&gt;M.-P. Doin, Felicity Lodge, S. Guillaso, R. Jolivet, C. Lasserre, G. Ducret, R. Grandin, E. Pathier, V. Pinel, Presentation of the small baseline NSBAS processing chain on a case example : the Etna deformation monitoring from 2003 to 2010 using Envisat data, Proc. ESA Fringe 2011 &lt;a href='https://www.isterre.fr/sites/www.isterre.fr/IMG/pdf/505_DOIN.pdf' class=&#034;spip_in&#034; type='application/pdf'&gt;PDF&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;E. Trouv&#233;, J.-M. Nicolas, L. Ferro-Famil, M. Gay, V. Pinel, M.-P. Doin, N. M&#233;ger, C. Lasserre,G. Mauris, F. Vernier, R. Fallourd,Y. Yan,O. Harant, R. Jolivet, Extraction et Fusion d'Informations pour la mesure de D&#233;placements par Imagerie Radar, Traitement du Signal , Vol. 28, N&#176; 3-4 pp.375-416, 2011&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2012&lt;/h4&gt;
&lt;p&gt;R. Jolivet, C. Lasserre, M.-P. Doin, S. Guillaso, G. Peltzer, R. Dailu, J. Sun, Z.-K. Shen and X. Xu, Shallow creep on the Haiyuan Fault (Gansu, China) observed by SAR Interferometry, J. Geophys. Res., 117, B06401, doi:10.1029/2011JB008732, 2012&lt;/p&gt;
&lt;p&gt;Y. Yan, M.-P. Doin, P. Lopez-Quiroz, F. Tupin, B. Fruneau, V. Pinel, E. Trouv&#233;, Mexico City subsidence measured by InSAR time series : Joint analysis using PS and SBAS approaches, accepted, IEEE,J. of Selected Topics in Applied Earth Observations and Remote Sensing, DOI:10.1109/JSTARS.2012.2191146, 2012 &lt;a href='https://www.isterre.fr/sites/www.isterre.fr/IMG/pdf/eos-Giant_Feb12-full.pdf' class=&#034;spip_in&#034; type='application/pdf'&gt;PDF&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;R. Grandin, M.-P. Doin , L. Bollinger , B. Pinel-Puyss&#233;gur , G. Ducret , R. Jolivet , S. Sapkota , Long-term growth of the Himalaya inferred from interseismic InSAR measurement, Geology, September 18, 2012, doi : 10.1130/G33154.1&lt;/p&gt;
&lt;p&gt;R. N. Nof, Ziv A., Doin M.P., Baer G., Fialko Y., Wdowinski S., Eyal Y., Bock Y., 2012, Rising of the lowest place on Earth due to Dead Sea water-level drop : Evidence from SAR Interferometry and GPS, J. Geophys. Res.,117 (B5) doi:10.1029/2011JB008961&lt;/p&gt;
&lt;p&gt;M. Cerca, D. Carre&#243;n-Freyre, P.L&#243;pez-Quiroz, E. Ovando-Shelley, M.-P. Doin, R. Gutierrez-Calder&#243;n, M. Gonz&#225;lez-Hern&#225;ndez, A. Jimenez-S&#225;nchez and D. Blancas-Dominguez, Engineering geology approach to the effects of land subsidence in Mexico City, doi : 10.1130/2012.0025(06), GSA Field Guides 2012, v. 25, p. 115-134&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;2013&lt;/h4&gt;
&lt;p&gt;P. S. Agram, R. Jolivet, B. Riel, Y. N. Lin, M. Simons, E. Hetland, M.-P. Doin, and C. Lasserre, New Radar Interferometric Time Series Analysis Toolbox Released&#034;, Eos, Vol. 94, No. 7, 12 February 2013 &lt;a href='https://www.isterre.fr/sites/www.isterre.fr/IMG/pdf/eos-Giant_Feb12-full.pdf' class=&#034;spip_in&#034; type='application/pdf'&gt;PDF&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;R. Jolivet, C. Lasserre, M.-P. Doin, G. Peltzer, J.-P. Avouac, R. Dailu, J. Sun, Spatio-temporal evolution of aseismic slip along the Haiyuan fault, China : Implications for fault frictional properties, Earth Planet. Sci. Lett., accepted&lt;/p&gt;
&lt;p&gt;Ducret G., M. P. Doin, R. Grandin, S. Guillaso and C. Lasserre, DEM corrections before unwrapping in a small baseline strategy for InSAR time series analysis. GRSL, IEEE, accepted&lt;/p&gt;&lt;/div&gt;
		
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		<title>CV</title>
		<link>https://www.isterre.fr/annuaire/member-web-pages/marie-pierre-doin/article/2013.html</link>
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		<dc:date>2013-07-16T09:44:12Z</dc:date>
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		<dc:language>fr</dc:language>
		<dc:creator>Marie-Pierre DOIN</dc:creator>



		<description>
&lt;p&gt;CURSUS &lt;br class='autobr' /&gt;
Sept 2012 &#224; actuel : Charg&#233;e de recherche &#224; ISTerre, Universit&#233; Joseph Fourier, Grenoble &lt;br class='autobr' /&gt;
Fevrier 97 &#224; Ao&#251;t 2012 : Charg&#233;e de recherche au Laboratoire de G&#233;ologie, Ecole Normale Sup&#233;rieure, Paris &lt;br class='autobr' /&gt;
Mars 96 &#224; Janvier 97 : Post-doctorat a l'Institut Oc&#233;anographique de La Jolla, USA, avec D. Sandwell &lt;br class='autobr' /&gt;
Aout 95 &#224; F&#233;vrier 96 : Post-doctorat a l'Institut de G&#233;ophysique de l'Universit&#233; de Goettingen, avec U. Christensen (Allemagne) &lt;br class='autobr' /&gt;
1991/1995 : Th&#232;se de Doctorat en G&#233;ophysique, au (&#8230;)&lt;/p&gt;


-
&lt;a href="https://www.isterre.fr/annuaire/member-web-pages/marie-pierre-doin/" rel="directory"&gt;Marie-Pierre DOIN&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;p&gt; &lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;CURSUS&lt;/h4&gt;
&lt;p&gt;Sept 2012 &#224; actuel : Charg&#233;e de recherche &#224; ISTerre, Universit&#233; Joseph Fourier, Grenoble&lt;/p&gt;
&lt;p&gt;Fevrier 97 &#224; Ao&#251;t 2012 : Charg&#233;e de recherche au Laboratoire de G&#233;ologie, Ecole Normale Sup&#233;rieure, Paris&lt;/p&gt;
&lt;p&gt;Mars 96 &#224; Janvier 97 : Post-doctorat a l'Institut Oc&#233;anographique de La Jolla, USA, avec D. Sandwell&lt;/p&gt;
&lt;p&gt;Aout 95 &#224; F&#233;vrier 96 : Post-doctorat a l'Institut de G&#233;ophysique de l'Universit&#233; de Goettingen, avec U. Christensen (Allemagne)&lt;/p&gt;
&lt;p&gt;1991/1995 : Th&#232;se de Doctorat en G&#233;ophysique, au Laboratoire de G&#233;ologie, ENS, Paris, sous la direction de L. Fleitout, mention tr&#232;s honorable avec f&#233;licitations : &#034;Structure thermique et p&#233;trologique de la lithosph&#232;re oc&#233;anique continentale et anomalies du champ de gravit&#233; terrestre&#034;&lt;/p&gt;
&lt;p&gt;1988-1992 : El&#232;ve &#224; l'Ecole Normale Sup&#233;rieure de Paris&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;THEMES DE RECHERCHE D&#201;VELOPP&#201;S &lt;/h4&gt;
&lt;p&gt;* Compr&#233;hension et mod&#233;lisation des m&#233;canismes qui r&#233;gissent la d&#233;fomation de la lithosph&#232;re et l'interaction de type convective entre lithosph&#232;re et manteau sous-jacent. Dans ce cadre, j'ai utilis&#233; des mod&#232;les de d&#233;formation thermo-m&#233;caniques et thermo-chimiques. Le param&#232;tre principal de ce type d'&#233;tude est la ductilit&#233; du manteau sup&#233;rieur et de la cro&#251;te, dont l'&#233;valuation est un enjeu scientifique majeur.&lt;/p&gt;
&lt;p&gt;* Mesure par interf&#233;rom&#233;trie radar le d&#233;placement de surface associ&#233; &#224; des chargements ou d&#233;chargements lacustres. L'objectif de ces mesures est de conna&#238;tre les propri&#233;t&#233;s rh&#233;ologiques des premiers 100 km de l'enveloppe terrestre, indispensables pour la compr&#233;hension des cycles sismique et volcanique.&lt;/p&gt;
&lt;p&gt;* D&#233;veloppement de techniques permettant d'&#233;tendre l'applicabilit&#233; de l'InSAR, en terme de couverture g&#233;ographique et de precision (infra-centrim&#233;trique).&lt;/p&gt;
&lt;p&gt;* Mesure de la d&#233;formation associ&#233;e au cycle sismique autour des failles.&lt;/p&gt;
&lt;p&gt;* Etude de la subsidence dans la vall&#233;e de Mexico.&lt;/p&gt;
&lt;h4 class=&#034;spip&#034;&gt;PROJETS (DEPUIS 2008)&lt;/h4&gt;
&lt;p&gt;.&lt;br class='autobr' /&gt;
2008-2011 : Participation au projet EFIDIR de l'ANR 2007 Masses de donn&#233;es et connaissances, &#8220;Extraction et Fusion d'Information pour la mesure de D&#233;placements par Imagerie Radar&#8221;, PI : Emmanuel Trouv&#233;, LISTIC, Universit&#233; de Savoie, Responsable du SP2 sur la mesure du d&#233;placement.&lt;/p&gt;
&lt;p&gt;2008-2012 : Participation au programme de coop&#233;ration Dragon-2 entre l'ESA et NRSCC (China), project ID 5305, PI C. Lasserre&lt;/p&gt;
&lt;p&gt;2010-2012 : PI projet TerraSAR-X GEO0728 &#034;Measure of Mexico City subsidence by high resolution TerraSAR-X interferometry&#034;, avec B. Puyssegur, V. Pinel, P. Lopez Quiroz&lt;/p&gt;
&lt;p&gt;2010-2011 : INSU-PNTS : &#034;Apport de l'interf&#233;rom&#233;trie radar &#224; haute r&#233;solution spatiale et temporelle &#224; la mesure des d&#233;formations au Tibet&#034;. R&#244;le dans le projet : d&#233;veloppement m&#233;thodologique et logiciel pour le calcul de s&#233;rie temporelle InSAR, coordination&#034;.&lt;/p&gt;
&lt;p&gt;2010-2011 : INSU-Risques et catastrophes telluriques :&#034;Etude g&#233;od&#233;sique et sismologique conjointe de l'accumulation de la d&#233;formation intersismique &#224; travers l'Himalaya : apport de l'interf&#233;rom&#233;trie satellitaire SAR&#034;. R&#244;le dans le projet : coll. avec R. Grandin, d&#233;veloppements m&#233;thodologiques InSAR, interpr&#233;tation de la d&#233;formation&lt;/p&gt;
&lt;p&gt;2012-2016 : Participation au programme de coop&#233;ration Dragon-3 entre l'ESA et NRSCC (China), project ID 5305, PI C. Lasserre&lt;/p&gt;
&lt;p&gt;2012-2014 : LONGRIBA : &#034;Faille de Longriba : la clef pour comprendre la tectonique de la marge Est du plateau Tib&#233;tain ?&#034;, ANR Jeune Chercheur port&#233;e par J. De Sigoyer. R&#244;le dans le projet : S&#233;ries temporelles InSAR sur Longriba, mod&#233;lisation.&lt;/p&gt;
&lt;p&gt;2013-2015 : MEGA-CHILI : &#034;Mega-s&#233;ismes au Chili : Exemple de Maule en 2010 (Mw 8.8) et implications sismo-tectoniques&#034;, ANR blanche port&#233;e par C. Vigny. R&#244;le dans le projet : co-encadrement de la th&#232;se de G. Ducret : observation par InSAR de l'accumulation intersismique de la d&#233;formation au Chili Central.&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;&lt;/div&gt;
		
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<item xml:lang="fr">
		<title>LONGRIBA project : Unravel the tectonics of the Eastern Tibetan Margin</title>
		<link>https://www.isterre.fr/english/research/research-projects/national-research-agency-anr-projects/completed-projects/article/projet-longriba-comprendre-la-tectonique-de-la-marge-est-du-plateau-tibetain.html</link>
		<guid isPermaLink="true">https://www.isterre.fr/english/research/research-projects/national-research-agency-anr-projects/completed-projects/article/projet-longriba-comprendre-la-tectonique-de-la-marge-est-du-plateau-tibetain.html</guid>
		<dc:date>2011-10-17T13:11:00Z</dc:date>
		<dc:format>text/html</dc:format>
		<dc:language>fr</dc:language>
		<dc:creator>Ana&#239;s SCHNEIDER, Marie-Pierre DOIN</dc:creator>



		<description>&lt;div class=&#034;encartgris&#034;&gt;&lt;strong&gt;Duration&lt;/strong&gt; : 2011 - 2016&lt;br class='manualbr' /&gt;&lt;strong&gt;Contacts at ISTerre&lt;/strong&gt; : M-P Doin, C. Lasserre&lt;/div&gt;

-
&lt;a href="https://www.isterre.fr/english/research/research-projects/national-research-agency-anr-projects/completed-projects/" rel="directory"&gt;Completed projects&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;h5 class=&#034;spip&#034;&gt;The Longriba fault : the key to unravel the tectonics of the Eastern Tibetan Margin ?&lt;/h5&gt;&lt;div class=&#034;encartbleu&#034;&gt;
&lt;strong&gt;PI :&lt;/strong&gt; De Sigoyer, Julia, Laboratoire de G&#233;ologie, Ecole Normale Sup&#233;rieure, Paris
&lt;strong&gt;ISTerre research team involved&lt;/strong&gt; : &lt;a href='https://www.isterre.fr/english/research/research-teams/seismic-cycle-and-transient-deformations/' class=&#034;spip_in&#034; hreflang=&#034;en&#034;&gt;Seismic cycle and transient deformations&lt;/a&gt;&lt;/div&gt;
&lt;p&gt;&lt;strong&gt;ABSTRACT&lt;/strong&gt;&lt;br class='autobr' /&gt;
The paradox of a high eastern Tibetan plateau associated with very low convergence rate (Shen et al., 2005 ; Gan et al., 2007) has led to an underestimation of the seismic hazard in the Longmen Shan area (China) prior to the May 12th 2008, Mw 7.9 earthquake. A crucial problem in our understanding of the seismic hazard in Eastern Tibet is the difficulty of reconciling long-term geological studies (several millions years), which suggest strong thickening of the Tibetan margin and the Longmen Shan belt, and short-term geophysical studies (seconds to decades) that show low convergence rate across this area. Compounding this difficulty is the complex structural geology of the margin, which comprises a large number of poorly-understood faults that interact in as-yet-unknown ways. In this project we will investigate this paradox directly, focusing our study on the Longriba fault system located 150 km west of the Longmen Shan front. This fault is a key structure that is rarely taken into account in conceptual frameworks for the geodynamics and seismo-tectonics of this area, although it seams to accommodate a large part of the present-day relative movement (6-8 mm/yr) between the Songpan block (Bayan Har block) and the south China block (Thatcher, 2007, Shen et al 2005). It seems also to partition the movement between dextral strike-slip movement along the fault itself and residual E-W convergence that is taken on the Longmen Shan. The interaction between the Longriba fault and the faults in the Longmen Shan is critical, because its estimated Quaternary slip rate is an order of magnitude higher than that of the Longmen Shan faults ; it may thus account for a large part of the present-day deformation, and must be accounted for in any regional assessment of seismic hazard.&lt;br class='autobr' /&gt;
The first aim of this proposal (Task 2) is to characterize and quantify the recent activity of the Longriba fault system by geodetic, neotectonic, and strain rate modelling analyses. The potential interactions between the Longriba system and the southern Xianshui He and East Kunlun faults will be also studied, to understand its role in a regional context.&lt;/p&gt;
&lt;p&gt;The second aim of this proposal (Task 3) is to estimate the activation age of the Longriba fault with geomorphic analyses and dating (cosmogenic, OSL), and to use low-temperature thermochronology to understand the potential role of Longriba fault in accommodating uplift of the eastern Tibetan plateau in this area,. We expect that the uplift of the Tibetan plateau occurred before the (very recent) activation of the Longriba fault, implying that the pre-Longriba tectonic framework could was very different from that at present, allowing more convergence across the eastern Tibetan margin and Longmen Shan belt than today.&lt;br class='autobr' /&gt;
Recent geochemical studies on the eastern Songpan Garze Triassic granitoids suggest that the Longriba fault could be located in a place of slab retreat and slab break-off at the boundary between the Yangtze craton margin and a Paleozoic ocean.&lt;/p&gt;
&lt;p&gt;The third aim of this proposal (Task 4) is to test this hypothesis, with geochemical tracer of the origin of these granites (major, trace and isotopic elements) and geochronological (U-Th-Pb system) data to understand the importance of geological inheritance to the present day tectonic setting. Via high-precision petrostructural study and dating (U-Th-Pb La-ICPMS and 39Ar-40Ar) we will produce scenarios for the deformation history of the Songpan Garze area and for the thickening of the eastern plateau margin since Triassic time.&lt;/p&gt;
&lt;div class='spip_document_3483 spip_document spip_documents spip_document_image spip_documents_center spip_document_center spip_document_avec_legende' data-legende-len=&#034;331&#034; data-legende-lenx=&#034;xxxx&#034;
&gt;
&lt;figure class=&#034;spip_doc_inner&#034;&gt; &lt;img src='https://www.isterre.fr/sites/www.isterre.fr/local/cache-vignettes/L500xH432/Longriba-b4959.png?1791005106' width='500' height='432' alt='' /&gt;
&lt;figcaption class='spip_doc_legende'&gt; &lt;div class='spip_doc_descriptif '&gt;Figure 1 : Secular block-motion model derived from synthesizing measurements of from 1999 to 2007 (Shen et al., 2009). GPS velocities are referenced to the south China block. Error ellipses represent 70% confidence. Red lines are the surface breaks of the Sichuan earthquake.&lt;br class='autobr' /&gt;
The Bayar Han block =Aba block+SW Longmen Shan block
&lt;/div&gt; &lt;/figcaption&gt;&lt;/figure&gt;
&lt;/div&gt;
&lt;p&gt;&lt;strong&gt;Longriba Fault&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Regional GPS data of Shen et al. (2005, 2009) show displacement of eastern Tibet toward the NE at 6 to 8 mm/yr, relative to a fixed Sichuan Basin. To examine how strain is partitioned, Shen et al. 2009 devised a block-motion model constrained using regional pre-earthquake GPS velocities (Fig. 3). For the region between the East Kunlun fault to the north and the Xianshuihe fault to the south, most of the relative motion between the eastern Tibetan plateau and Sichuan basin (4-5 mm/yr) appears to be accommodated along the dextral Longriba fault system, located 150 km northwest of and parallel to the Longmen Shan faults. The remaining part (&lt;2 mm/yr) has to be absorbed by tectonic structures located between the two domains, in the SW Longmen Shan block and at the Longmen Shan front. We stress that these inferred slip rates are 5-10 times greater than those of the faults in the Longmen Shan described above.&lt;/p&gt;
&lt;p&gt;The Longriba fault is a system of NE-trending parallel dextral and thrust faults (Xu et al., 2008) in the eastern Bayan Har block (that represents most of the Songpan Garze unit see the insert map of the Tibet). The northeastern segment of the Longriba fault consists of two subparallel N54&#177;5&#176;E trending branch faults about 30 km apart, with Quaternary offset landforms related to the fault segments. The northern branch fault, also termed the Longriba fault, has a relatively large reverse component, while the southern branch fault, the Maoergai fault, is inferred to be a pure right-lateral strike slip fault (Fig.1, Fig. 4). A swarm of seismicity has been observed along the southern part of the Longriba faults but no other studies were published on active deformation of Longriba fault in this area.&lt;/p&gt;
&lt;p&gt;The previous regional geodetic studies have delivered a better understanding for the active tectonic framework of the area, showing that most of the deformation is taken up on quasi-unknown Longriba fault system. This partitioned system may explain why the present-day convergent rates are so low across the Longmen Shan belt. However, the lack of information on the structure and history of the Longriba fault, coupled with the recent demonstration that the greater Longmen Shan region continues to be tectonically active, leads to the conclusion that there is an urgent need for a better documentation of this fault system.&lt;/p&gt;&lt;/div&gt;
		
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