Christian Beck - Academia.edu (original) (raw)
Papers by Christian Beck
5 th International …, 2002
1 Funvisis, Earth Sciences Dept., Apdo. Postal 76.880, Caracas 1070-A, Venezuela. e-mail: dptoct@... more 1 Funvisis, Earth Sciences Dept., Apdo. Postal 76.880, Caracas 1070-A, Venezuela. e-mail: dptoct@internet.ve 2 Univ. de Savoie, Lab. de Géodynamique des Chaînes Alpines, 73376 Le Bourget du Lac Cedex, France. 3 Univ. Central de Venezuela, Fac. de Ciencias, Inst. de ...
V International Symposium …, 2002
Eduardo CARRILLO (1), Franck AUDEMARD (2), Christian BECK (3) and Michel COUSIN (3) ... (1) Univ.... more Eduardo CARRILLO (1), Franck AUDEMARD (2), Christian BECK (3) and Michel COUSIN (3) ... (1) Univ. Central de Venezuela, Fac. de Ciencias, Inst. Ciencias de la Tierra. (ecarrill@gea.ciens.ucv.ve) ... (2) Fundación Venezolana de Investigaciones ...
Annals of Geophysics, 2014
A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a gian... more A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a giant piston core retrieved on board R/V MARION-DUFRESNE in the North Central Gulf of Corinth. Based on previous methodological improvements, grain-size distribution and Magnetic Susceptibility Anisotropy (MSA) have been analysed in order to detect earthquake-induced deposits. We indentified 36 specific layers -Homogenites+Turbidites (HmTu) - intercalated within continuous hemipelagictype sediments (biogenic or bio-induced fraction and fine-grained siliciclastic fraction). The whole succession is divided into a non-marine lower half and a marine upper half. The “events” are distributed through the entire core and they are composed of two terms: a coarse-grained lower term and an upper homogeneous fine-grained term, sharply separated. Their average time recurrence interval could be estimated for the entire MD01-2477 core. The non-marine and the marine sections yielded close estimated values f...
through specific coeval sedimentation in Lesser Antilles:
In 1988, the history of GNSS geodetic measurements with the goal of studying fault kinematics in ... more In 1988, the history of GNSS geodetic measurements with the goal of studying fault kinematics in Venezuela begins with one of the first civil efforts, the Central and South America (CASA) Project. Since then, and for more than two decades now, several authors have been contributing with the ultimate target: To determine slip rates of plate boundary faults in order to understand the active tectonics at the Caribbean South America plate interactions. Recently, the interest on kinematics GNSS has increased with the occurrence of the 1997 Cariaco Earthquake. In this work, we make an overview of the acquisition methodologies, data processing and contributions to the understanding of local and regional geodynamics. We show the significant contributions from the group headed by the Simón Bolívar University, and FUNVISIS team, in scientific collaboration with researchers of Savoie University, France, without to forget the significant contributions of other authors. Finally, we evaluate the future perspectives: modeling of faults (minor faults) from GNSS observations, densification of present-day networks, installation of continuous GNSS networks , exchange of data with researchers from neighboring countries and definitely, the efforts directed to conformation of the national pool of GNSS equipment available to the whole Venezuelan scientific community involved in this subject.
Hydrocarbon and Petroleum Geology of France, 1994
The Savoy Tertiary molasse basin is part of the Neogene foreland thrust belt of the Alps that was... more The Savoy Tertiary molasse basin is part of the Neogene foreland thrust belt of the Alps that was overlain by Tertiary syntectonic sediments during the poly-phase development of the Alpine foreland. The analysis of these stratigraphic sequences is helpful for understanding the dynamics of the area because it provides efncient constraints for restoring the tectonic subsidence and the progressive deformation history of the basin. During Rupelian to Aquitanian times prograding sedimentary sequences were deposited, while passive flexuring of the foreland developed. This was probably induced by the tectonic overload created by the Oligocene thrust sheets in the inner parts of the Alps. From the Rupelian to the Chattian, this basin developed with high progradation rates (6 mm/year) and high subsidence rates (> 0.2 mm/year) in the eastern parts of the basin, whereas during the Aquitanian, progradation was low ( 0.15 mm/year). Afterwards, this early passive foreland flexural basin was inverted and became involved in the Neogene foreland thrust system during the Miocene thrust propagation. During the Burdigalian to the Serravallian, this led to the development of sparce syn-thrust infillings with heterogeneous deposition rates. This notably highlights the important migration of the Alpine front in this area during Burdigalian times. The homogenized strain on the whole molasse basin in Savoy during the Burdigalian-Langhian was around 2 mm/year. Taking into account the proposed evolution, hydrocarbon maturation and migration are also considered in estimating the petroleum potential of the area.
Journal of South American Earth Sciences, 2019
Asf Association Des Sedimentologistes Francais, 2001
La vallee de la Basse Moulouya s'etend du Rif oriental jusqu'a la frontiere algerienne et... more La vallee de la Basse Moulouya s'etend du Rif oriental jusqu'a la frontiere algerienne et est caracterisee par un climat semi-aride. Cette vallee est etroite avec un chenal sinueux et encaisse dont la pente moyenne est de 0,02 %. Dans ses 25 derniers km, a l'est de la terminaison orientale des Kebdana, la Moulouya a depose pendant l'Holocene des alluvions Epaisses (jusqu'a 15m) formant actuellement une terrasse T1 bien marquee dans le paysage. En amont, a Garma, la surface de la T1 est subdivisee en deux niveaux T1 et T2: l'escarpement topographique, haut de 2,5 m et long de 100 m, est oriente transversalement par rapport a l'axe de la Moulouya. Les sediments fluviatiles sont sableux a facies de type barre et silto-agileux a facies de type plaine d'inondation. Ils renferment des indices multiples de deformation syn- et postsedimentaire (seismites, failles et diaclases) qui montrent la continuite de l'activite tectonique a l'Holocene dans ce secteur et permettent d'en preciser la chronologie et d'en quantifier les effets: - incision de la Moulouya, pouvant atteindre 15m, dans les depots de la T1; - niveau a sels (halite, gypse) marquant une transgression marine vers 5 ka BP et souleve de 11,5 m a 20 km du littoral (exhaussement moyen: 2,3 mm.an-1); - structures de fluage et liquefaction, fractures cosismiques anterieures et posterieures a 5 ka BP; - sols interstratifies marquant des arrets de sedimentation; - faille decalant la surface de la T1 de 2 m.
Asf Association Des Sedimentologistes Francais, 2001
Comptes Rendus Geoscience, 2016
Comptes rendus de l'Académie des sciences. Série II, Mécanique, physique, chimie, sciences de l'univers, sciences de la terre
Sedimentary Geology, 2007
5 th International …, 2002
1 Funvisis, Earth Sciences Dept., Apdo. Postal 76.880, Caracas 1070-A, Venezuela. e-mail: dptoct@... more 1 Funvisis, Earth Sciences Dept., Apdo. Postal 76.880, Caracas 1070-A, Venezuela. e-mail: dptoct@internet.ve 2 Univ. de Savoie, Lab. de Géodynamique des Chaînes Alpines, 73376 Le Bourget du Lac Cedex, France. 3 Univ. Central de Venezuela, Fac. de Ciencias, Inst. de ...
V International Symposium …, 2002
Eduardo CARRILLO (1), Franck AUDEMARD (2), Christian BECK (3) and Michel COUSIN (3) ... (1) Univ.... more Eduardo CARRILLO (1), Franck AUDEMARD (2), Christian BECK (3) and Michel COUSIN (3) ... (1) Univ. Central de Venezuela, Fac. de Ciencias, Inst. Ciencias de la Tierra. (ecarrill@gea.ciens.ucv.ve) ... (2) Fundación Venezolana de Investigaciones ...
Annals of Geophysics, 2014
A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a gian... more A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a giant piston core retrieved on board R/V MARION-DUFRESNE in the North Central Gulf of Corinth. Based on previous methodological improvements, grain-size distribution and Magnetic Susceptibility Anisotropy (MSA) have been analysed in order to detect earthquake-induced deposits. We indentified 36 specific layers -Homogenites+Turbidites (HmTu) - intercalated within continuous hemipelagictype sediments (biogenic or bio-induced fraction and fine-grained siliciclastic fraction). The whole succession is divided into a non-marine lower half and a marine upper half. The “events” are distributed through the entire core and they are composed of two terms: a coarse-grained lower term and an upper homogeneous fine-grained term, sharply separated. Their average time recurrence interval could be estimated for the entire MD01-2477 core. The non-marine and the marine sections yielded close estimated values f...
through specific coeval sedimentation in Lesser Antilles:
In 1988, the history of GNSS geodetic measurements with the goal of studying fault kinematics in ... more In 1988, the history of GNSS geodetic measurements with the goal of studying fault kinematics in Venezuela begins with one of the first civil efforts, the Central and South America (CASA) Project. Since then, and for more than two decades now, several authors have been contributing with the ultimate target: To determine slip rates of plate boundary faults in order to understand the active tectonics at the Caribbean South America plate interactions. Recently, the interest on kinematics GNSS has increased with the occurrence of the 1997 Cariaco Earthquake. In this work, we make an overview of the acquisition methodologies, data processing and contributions to the understanding of local and regional geodynamics. We show the significant contributions from the group headed by the Simón Bolívar University, and FUNVISIS team, in scientific collaboration with researchers of Savoie University, France, without to forget the significant contributions of other authors. Finally, we evaluate the future perspectives: modeling of faults (minor faults) from GNSS observations, densification of present-day networks, installation of continuous GNSS networks , exchange of data with researchers from neighboring countries and definitely, the efforts directed to conformation of the national pool of GNSS equipment available to the whole Venezuelan scientific community involved in this subject.
Hydrocarbon and Petroleum Geology of France, 1994
The Savoy Tertiary molasse basin is part of the Neogene foreland thrust belt of the Alps that was... more The Savoy Tertiary molasse basin is part of the Neogene foreland thrust belt of the Alps that was overlain by Tertiary syntectonic sediments during the poly-phase development of the Alpine foreland. The analysis of these stratigraphic sequences is helpful for understanding the dynamics of the area because it provides efncient constraints for restoring the tectonic subsidence and the progressive deformation history of the basin. During Rupelian to Aquitanian times prograding sedimentary sequences were deposited, while passive flexuring of the foreland developed. This was probably induced by the tectonic overload created by the Oligocene thrust sheets in the inner parts of the Alps. From the Rupelian to the Chattian, this basin developed with high progradation rates (6 mm/year) and high subsidence rates (> 0.2 mm/year) in the eastern parts of the basin, whereas during the Aquitanian, progradation was low ( 0.15 mm/year). Afterwards, this early passive foreland flexural basin was inverted and became involved in the Neogene foreland thrust system during the Miocene thrust propagation. During the Burdigalian to the Serravallian, this led to the development of sparce syn-thrust infillings with heterogeneous deposition rates. This notably highlights the important migration of the Alpine front in this area during Burdigalian times. The homogenized strain on the whole molasse basin in Savoy during the Burdigalian-Langhian was around 2 mm/year. Taking into account the proposed evolution, hydrocarbon maturation and migration are also considered in estimating the petroleum potential of the area.
Journal of South American Earth Sciences, 2019
Asf Association Des Sedimentologistes Francais, 2001
La vallee de la Basse Moulouya s'etend du Rif oriental jusqu'a la frontiere algerienne et... more La vallee de la Basse Moulouya s'etend du Rif oriental jusqu'a la frontiere algerienne et est caracterisee par un climat semi-aride. Cette vallee est etroite avec un chenal sinueux et encaisse dont la pente moyenne est de 0,02 %. Dans ses 25 derniers km, a l'est de la terminaison orientale des Kebdana, la Moulouya a depose pendant l'Holocene des alluvions Epaisses (jusqu'a 15m) formant actuellement une terrasse T1 bien marquee dans le paysage. En amont, a Garma, la surface de la T1 est subdivisee en deux niveaux T1 et T2: l'escarpement topographique, haut de 2,5 m et long de 100 m, est oriente transversalement par rapport a l'axe de la Moulouya. Les sediments fluviatiles sont sableux a facies de type barre et silto-agileux a facies de type plaine d'inondation. Ils renferment des indices multiples de deformation syn- et postsedimentaire (seismites, failles et diaclases) qui montrent la continuite de l'activite tectonique a l'Holocene dans ce secteur et permettent d'en preciser la chronologie et d'en quantifier les effets: - incision de la Moulouya, pouvant atteindre 15m, dans les depots de la T1; - niveau a sels (halite, gypse) marquant une transgression marine vers 5 ka BP et souleve de 11,5 m a 20 km du littoral (exhaussement moyen: 2,3 mm.an-1); - structures de fluage et liquefaction, fractures cosismiques anterieures et posterieures a 5 ka BP; - sols interstratifies marquant des arrets de sedimentation; - faille decalant la surface de la T1 de 2 m.
Asf Association Des Sedimentologistes Francais, 2001
Comptes Rendus Geoscience, 2016
Comptes rendus de l'Académie des sciences. Série II, Mécanique, physique, chimie, sciences de l'univers, sciences de la terre
Sedimentary Geology, 2007