Centre de documentation
scientifique

Plate Motion of India and Interseismic Strain in the Nepal Himalaya from GPS and DORIS Measurements / Pierre Bettinelli in Journal of geodesy, vol 80 n° 8-11 (November 2006)  

Public [article]  inJournal of geodesy > vol 80 n° 8-11 (November 2006) . - pp 567 - 589 Titre : Plate Motion of India and Interseismic Strain in the Nepal Himalaya from GPS and DORIS Measurements Type de document : Article/Communication Auteurs : Pierre Bettinelli, Auteur ; Jean-Philippe Avouac, Auteur ; Mireille Flouzat, Auteur ; F. Jouanne, Auteur ; Laurent Bollinger, Auteur ; Pascal Willis , Auteur ; Gyani Raja Chitrakar, Auteur Année de publication : 2006 Article en page(s) : pp 567 - 589 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] déformation de la croute terrestre [Termes IGN] données DORIS [Termes IGN] données GPS [Termes IGN] Himalaya [Termes IGN] tectonique des plaques Résumé : (auteur) We analyse geodetically estimated deformation across the Nepal Himalaya in order to determine the geodetic rate of shortening between Southern Tibet and India, previously proposed to range from 12 to 21 mm yr−1. The dataset includes spirit-levelling data along a road going from the Indian to the Tibetan border across Central Nepal, data from the DORIS station on Everest, which has been analysed since 1993, GPS campaign measurements from surveys carried on between 1995 and 2001, as well as data from continuous GPS stations along a transect at the logitude of Kathmandu operated continuously since 1997. The GPS data were processed in International Terrestrial Reference Frame 2000 (ITRF2000), together with the data from 20 International GNSS Service (IGS) stations and then combined using quasi- observation combination analysis (QOCA). Finally, spatially complementary velocities at stations in Southern Tibet, initially determined in ITRF97, were expressed in ITRF2000. After analysing previous studies by different authors, we determined the pole of rotation of the Indian tectonic plate to be located in ITRF2000 at 51.409±1.560° N and −10.915±5.556°E, with an angular velocity of 0.483±0.015°. Myr−1. Internal deformation of India is found to be small, corresponding to less than about 2 mm yr−1 of baseline change between Southern India and the Himalayan piedmont. Based on an elastic dislocation model of interseismic strain and taking into account the uncertainty on India plate motion, the mean convergence rate across Central and Eastern Nepal is estimated to 19±2.5 mm yr−1, (at the 67% confidence level). The main himalayan thrust (MHT) fault was found to be locked from the surface to a depth of about 20 km over a width of about 115 km. In these regions, the model parameters are well constrained, thanks to the long and continuous time-series from the permanent GPS as well as DORIS data. Further west, a convergence rate of 13.4±5 mm yr−1, as well as a fault zone, locked over 150 km, are proposed. The slight discrepancy between the geologically estimated deformation rate of 21±1.5 mm yr−1 and the 19±2.5 mm yr−1 geodetic rate in Central and Eastern Nepal, as well as the lower geodetic rate in Western Nepal compared to Eastern Nepal, places bounds on possible temporal variations of the pattern and rate of strain in the period between large earthquakes in this region. Numéro de notice : A2006-673 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0030-3 Date de publication en ligne : 08/03/2006 En ligne : https://doi.org/10.1007/s00190-006-0030-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102742 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-06102	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-06101	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Current strain regime in the Western Alps from continuous Global Positioning System measurements, 1996–2001 / Eric Calais in Geology, vol 30 n° 7 (July 2002)  

Public [article]  inGeology > vol 30 n° 7 (July 2002) . - pp Titre : Current strain regime in the Western Alps from continuous Global Positioning System measurements, 1996–2001 Type de document : Article/Communication Auteurs : Eric Calais, Auteur ; Jean-Mathieu Nocquet , Auteur ; F. Jouanne, Auteur ; M. Tardy, Auteur Année de publication : 2002 Article en page(s) : pp Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] Alpes occidentales [Termes IGN] analyse diachronique [Termes IGN] données GPS [Termes IGN] série temporelle [Termes IGN] vitesse Résumé : (auteur) Four to six years of continuous measurements at 10 permanent Global Positioning System sites in the Western Alps show horizontal residual velocities of Numéro de notice : A2002-324 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1130/0091-7613(2002)030%3C0651:CSRITW%3E2.0.CO;2 Date de publication en ligne : 02/06/2017 En ligne : https://doi.org/10.1130/0091-7613(2002)030%3C0651:CSRITW%3E2.0.CO;2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=103221 [article]

Present-day deformation of the Dauphine Alpine and Subalpine massifs (SE France) / Joseph Martinod in Geophysical journal international, vol 127 n° 1 (October 1996)  

Public [article]  inGeophysical journal international > vol 127 n° 1 (October 1996) . - pp 189 - 200 Titre : Present-day deformation of the Dauphine Alpine and Subalpine massifs (SE France) Type de document : Article/Communication Auteurs : Joseph Martinod, Auteur ; F. Jouanne, Auteur ; Joël Taverna, Auteur ; G. Menard, Auteur ; Jean-François Gamond, Auteur ; Xavier Darmendrail, Auteur ; Jean-Cyrille Notter, Auteur ; Christophe Basile, Auteur Année de publication : 1996 Article en page(s) : pp 189 - 200 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique [Termes IGN] Alpes occidentales [Termes IGN] déformation de la croute terrestre [Termes IGN] données géologiques [Termes IGN] faille géologique Résumé : (auteur) The positions of 20 geodetic points surveyed in 1946-1952 by the Institut Géographique National in the Grenoble area (western Alps) were remeasured in 1993-1994 using GPS. We evaluate the displacements of the common points of the networks between the two surveys, and calculate the strain-rate tensors for different sets of three adjacent points. The significant N70° shortening direction observed at the boundary of the Belledonne and Taillefer massifs suggests that the dextral strike-slip motion between the External Crystalline Massifs (ECM) and the Subalpine domain is still active. Geological evidence suggests that this deformation, which is compatible with the few focal mechanisms available for the area, occurred throughout the late Neogene. Our data also suggest a roughly 3-5 mm yr-1 active shortening concentrated at the external front of the Subalpine chains. This thrust motion results in a principal axis of compression orientated N130°, oblique to the direction of shortening observed in the ECM. This change in direction is also seen in in situ stress measurements. This motion may mark the southward continuation of the active fault observed in the Jura mountains by Jouanne, Ménard & Darmendrail (1995). Numéro de notice : A1996-103 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1365-246X.1996.tb01544.x Date de publication en ligne : 01/10/1996 En ligne : https://doi.org/10.1111/j.1365-246X.1996.tb01544.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102895 [article]

Present-day deformation of the French northwestern Alps/southern Jura mountains: comparison between historical triangulations / F. Jouanne in Geophysical journal international, vol 119 n° 1 (October 1994)  

Public [article]  inGeophysical journal international > vol 119 n° 1 (October 1994) . - pp 151 - 165 Titre : Present-day deformation of the French northwestern Alps/southern Jura mountains: comparison between historical triangulations Type de document : Article/Communication Auteurs : F. Jouanne, Auteur ; G. Menard, Auteur ; Dominique Jault, Auteur Année de publication : 1994 Article en page(s) : pp 151 - 165 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique [Termes IGN] Alpes (France) [Termes IGN] déformation de la croute terrestre [Termes IGN] Jura, massif du [Termes IGN] point géodésique [Termes IGN] triangulation Résumé : (auteur) The change of the coordinates of 44 geodetic points between two surveys, epochs 1930–36 and 1979–84 are studied. The discussion is supported by strain rate tensors and angular shear rates for different sets of three adjacent points as well as by calculated displacements together with their confidence ellipses. The southern Jura mountains may undergo a relatively homogenous pattern of deformation characterized by a roughly east—west to NE—SW compression and by a significant westward motion (5 mm yr−1) relative to the frontal Jura mountains. This deformation would be compatible with the few focal mechanisms of earthquakes available for this area. A displacement of nearly 2 cm yr−1 affected a geodetic point north of Annecy. Unfortunately, this point is the only one that shows such a movement, we cannot exclude a local displacement of this benchmark. Numéro de notice : A1994-039 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1365-246X.1994.tb00919.x Date de publication en ligne : 01/10/1994 En ligne : https://doi.org/10.1111/j.1365-246X.1994.tb00919.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102893 [article]