Partager l'article ! (2) Meeting the explosion in electricity demand: Jacques Bourgois Directeur de Recherche au CNRS Université Pierre et Marie Curie - P ...
Plate tectonic meeting the 
explosion in
electricity demand
At deep ocean trenches the subduction process participates in ocean lithosphere recycling. The basalt and
associated sediment cover of the seafloor underthrust the continental margin of the upper plate towards the asthenosphere. The deep ocean trench is a well for sub-surface material to be removed
at Earth mantle depth greater than ~100-150 km. This subduction process is potentially appropriated for nuclear fuel waste to be permanently
eliminated. Because the Peru subduction zone exhibits no volcanic arc it is proposed to be extensively surveyed in the perspective of evaluating its potentials for nuclear waste elimination.
Blog outline
/ Liste d'articles
(1) Crise énergétique et tectonique des plaques; (2) Meeting the explosion in electricity demand.
(3) Feedback coupling between tectonics and climate.
(4) CV de Jacques Bourgois, liste des publications.
(1) Crise énergétique et tectonique des plaques; (2) Meeting the explosion in electricity demand.
(3) Feedback coupling between tectonics and climate.
(4) CV de Jacques Bourgois, liste des publications.
(5) Le processus de subduction, un condensé des travaux (partie 1); (6)
Le processus de subduction, un condensé des travaux (suite).
(7) Liste des publications de Jacques Bourgois; (8) Liste des publications de Jacques Bourgois (suite).
(7) Liste des publications de Jacques Bourgois; (8) Liste des publications de Jacques Bourgois (suite).
(9) Editor of the INTERNATIONAL JOURNAL OF GEOSCIENCES
Liste d'articles
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(9) EDITOR OF INTERNATIONAL JOURNAL OF GEOSCIENCES
From : Dr. Jacques Bourgois to : potential contributors Since few months, I am co-editor (together with a Chinese colleague) of "INTERNATIONAL JOURNAL OF GEOSCIENCES" (see attachments below). The IJG is an international open access journal dedicated to...
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(1) Crise énergétique et tectonique des plaques
Jacques Bourgois Directeur de Recherche au CNRS Université Pierre et Marie Curie - Paris 6 Institut des Sciences de la Terre Paris (iSTeP) - UMR 7193 UPMC-CNRS Case 124 Tour 46-00, 3 ème étage 4, place Jussieu 75252 Paris Cedex 5...
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(2) Meeting the explosion in electricity demand
Jacques Bourgois Directeur de Recherche au CNRS Université Pierre et Marie Curie - Paris 6 Institut des Sciences de la Terre Paris (iSTeP) - UMR 7193 UPMC-CNRSCase 124 Tour 56-66, 4ème étage 4, place Jussieu 75252 Paris Cedex 5 - France -------- Tel:...
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(3) Feedback coupling between tectonics and climate
BRIEF DESCRIPTION OF ONGOING ACADEMIC RESEARCH Since about ten years, part of my studies focused at the interface of tectonics, oceanography, and climatology. The main objective is to understand the feedback processes between climate and tectonic deformation at...
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(4) CV de Jacques Bourgois
CV de Jacques Bourgois Né le 08-08-1944, marié deux enfants, Service militaire effectué. DR1 CNRS depuis 1989. Entré au CNRS en 1971. Adresse: Université...
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(5) Le processus de subduction
APPORTS A LA COMPREHENSION DU PROCESSUS DE SUBDUCTION Un condensé des travaux conduits depuis les années 80 Jacques Bourgois DR1 CNRS Septembre 2008 Motivations des études La subduction est un processus associé à la...
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(6) Le processus de subduction (suite)
8- Point triple ride-fosse-fosse du Chili, subduction de dorsale, les adakites (Geology, 1997) En 1991, nous engagions une série d’opération pour étudier le point triple du Chili, seul endroit ou une dorsale océanique active entre activement en subduction. Cette...
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(7) Liste des publications de Jacques Bourgois
(7) Liste des publications de Jacques Bourgois Liste des articles publiés REVUES INTERNATIONALES (60) Voir liste des revues dans article CV de Jacques Bourgois (61) Bourgois, J., D. Bourles, and R. Braucher (2011), Reply to comment by K....
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(8) Liste des publications de Jacques Bourgois (suite)
Liste des publications (suite) Autres contributions VIDEO : « Des cailloux et des hommes » (campagnes de plongées du Nautile, Chef de mission JB) durée 53 mn diffusée a la BBC, en Belgique et au Danemark. ARTICLE AU "NOUVEL OBSERVATEUR", 1991, « VOYAGE AU CENTRE DE LA MER » N°1384,...
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Mercredi 17 septembre 2008
3
17
/09
/Sep
/2008
10:50
Jacques Bourgois
Directeur de Recherche au CNRS
Université Pierre et Marie Curie - Paris 6
Institut des Sciences de la Terre Paris (iSTeP) - UMR 7193 UPMC-CNRSCase 124
Tour 56-66, 4ème étage
4, place Jussieu
75252 Paris Cedex 5 - France
--------
Tel: 01 44 27 50 06
Email: jacques.bourgois@upmc.fr
Institut des Sciences de la Terre Paris (iSTeP) - UMR 7193 UPMC-CNRSCase 124
Tour 56-66, 4ème étage
4, place Jussieu
75252 Paris Cedex 5 - France
--------
Tel: 01 44 27 50 06
Email: jacques.bourgois@upmc.fr
Complete CV (in French) including list of publications available →→→→ next sections at this site
http://www.jacques-bourgois.org
AIM OF ACADEMIC WORK
Basically, I am geologist and geophysicist. I have worked extensively in Latin America from Baja California (Mexico) to
Patagonia (Chile) exploring processes related to Middle America and Andean subductions. I have worked both on land and at sea conducting field works from the foreland to the Pacific coastline and
off shore campaigns, respectively. I was Chief Scientist of six cruises off Mexico, Peru and Chile including three deep-sea diving cruises using the submersible NAUTILE. We explored and sampled
seafloor at the Peru-Chile and the Middle America trenches down to 6000-m. It allowed us to better understand the tectonic regime and processes associated with the underthrust of the Pacific
oceanic lithosphere beneath the Middle and South America continental basements.
MEETING THE ANTICIPATED EXPLOSION IN ELECTRICITY DEMAND
WASTE ELIMINATION FROM NUCLEAR FUEL
Along the ~60,000 km of deep oceanic trenches the subduction process participates in oceanic lithosphere recycling. In other words the basalt
and associated sediment cover of the seafloor are moving downward together with trench sediment. They underthrust the continental margin of the upper plate towards the asthenosphere. Therefore
the subduction process appears as a well for sub-surface material to be removed at depth greater than ~100-150 km. This natural well is potentially appropriate for nuclear fuel waste to be
permanently eliminated.
However, slab rock melting is occurring beneath the volcanic arc at distances ranging from 100 to 250 km from the subduction front. Along fast
subductions –i.e. such as the SW Pacific- it takes about 800,000 years for the subducted material to erupt at volcanic edifices of the volcanic arc. At slower subduction, the transit time for the
subducted material is longer than one Million years.
Subductions such as the Peru and northern Chile exhibit no volcanic arc. At those sites no subducted material is removed to the atmosphere. This situation is stable along the 1500 km long Peru subduction zone since ~20 Million years. For these reasons, I proposed (Bourgois, 1996) the Peru subduction zone (see also Bourgois et al., 1988; von Huene et al., 1988; Dia et al., 1993, Bourgois et al., 1993; Aquilina et al., 1997; Bourgois et al., 2007) to be extensively surveyed in the perspective of having an accurate field understanding of its potentials for nuclear waste elimination.
Subductions such as the Peru and northern Chile exhibit no volcanic arc. At those sites no subducted material is removed to the atmosphere. This situation is stable along the 1500 km long Peru subduction zone since ~20 Million years. For these reasons, I proposed (Bourgois, 1996) the Peru subduction zone (see also Bourgois et al., 1988; von Huene et al., 1988; Dia et al., 1993, Bourgois et al., 1993; Aquilina et al., 1997; Bourgois et al., 2007) to be extensively surveyed in the perspective of having an accurate field understanding of its potentials for nuclear waste elimination.
Selected References
(56) Bourgois, J., Bigot-Cormier, F., Bourles, D., Braucher, R., Dauteuil, O., Witt, C., Michaud, F., 2007,
Tectonic records of strain buildup and abrupt co-seismic stress release across the northwestern Peru coastal plain, and continental slope during the past 200 kyr. Journal of Geophysical
Research, 112, B04104, doi:10.1029/2006JB004491.
(37) Aquilina, L., Dia, A.N., Boulègue, J., Bourgois, J., and Fouillac, A.M., 1997, Massive barite deposits along
the convergent margin of Peru: implications for fluid circulation within subduction zones. Geochimica.Cosmochimica.Acta, 61, 1233-1245.
(28) Dia, A.N., Aquilina, L., Boulègue, J., Bourgois, J., E. Suess, and Torres, M., 1993, Origin of fluids and
related-barite deposits at vent sites along the Peru convergent margin, Geology, 21, 1099-1102.
(27) Bourgois, J., Lagabrielle, Y., De Wever, P., Suess, E., and NAUTIPERC team, 1993, Tectonic History of the
northern Peru convergent margin during the past 400 Ka, Geology, 21, 531-534.
(21) von Huene, R., Bourgois, J., Miller, J., and Pautot, G., 1989, A large Tsunamogenic landslide and debris
along the Peru Trench, Journal of Geophysical Research, 94, 1703-1714.
(20) Bourgois, J., Pautot, G., Bandy, W., Boinet, T., Chotin, P., Huchon, P., Mercier de Lepinay, B., Monge, F.,
Monlaü, J., Pelletier, B., Sosson, M., and von Huene, R., 1988, Seabeam and seismic reflexion imaging of the tectonic regime of the Andean continental margin off Peru (4°S to 10°S), Earth
and Planetary Science Letters, 87, 111-126.
OIL AND GAS
From 1980 to 1995, I have the opportunity to be funded by Petroleum and Mining companies including Elf Ecuador, Elf Colombia, Ecuatomin, and
the BRGM. During my subsequent five-years stay (2001-2006) in Ecuador as Professor at the Escuela Politecnica Nacional (EPN-Quito), a close collaboration with Petroecuador and Perupetro allowed
us to constrain the evolution of the Gulf of Guayaquil-Tumbes basin for the past 1.8-1.6 Million years. At less few ten of kilometers south of the Ecuador Peru border, major gas and oil
reservoirs exist along the northern Peru forearc. Instead geologic and geophysical evidences suggest that these gas and oil reservoirs should extend along the Ecuadorian side, they are not
identified yet. Our published works including Witt et al., (2006), Bourgois et al. (2007), Witt and Bourgois (2009) suggest that a new strategy should be designed in order to find what is the
exact location of sites to be surveyed for successful discovery of major reservoirs along the Ecuadorian forearc.
Selected References
(58) Witt, C., Bourgois, J., 2009, Forearc basin formation in the tectonic wake of a collision
extensional Gulf of Guayaquil-Tumbes basin (Ecuador-Peru border area). Geological Society of America Bulletin. In press.
(56) Bourgois, J., Bigot-Cormier, F., Bourles, D., Braucher, R., Dauteuil, O., Witt, C., Michaud, F., 2007, Tectonic records of strain buildup and abrupt co-seismic stress release across the northwestern Peru coastal plain, and continental slope during the past 200 kyr. Journal of Geophysical Research, 112, B04104, doi:10.1029/2006JB004491.
(54) Witt, C., Bourgois, J., Michaud, F., Ordoñez, M., Jimenez, N., Sosson, M., 2006, Development of the Gulf of Guayaquil (Ecuador) during the Quaternary as an effect of the North Andean block tectonic escape. Tectonics, 25, TC3017, doi:10.1029/2004TC001723.
(56) Bourgois, J., Bigot-Cormier, F., Bourles, D., Braucher, R., Dauteuil, O., Witt, C., Michaud, F., 2007, Tectonic records of strain buildup and abrupt co-seismic stress release across the northwestern Peru coastal plain, and continental slope during the past 200 kyr. Journal of Geophysical Research, 112, B04104, doi:10.1029/2006JB004491.
(54) Witt, C., Bourgois, J., Michaud, F., Ordoñez, M., Jimenez, N., Sosson, M., 2006, Development of the Gulf of Guayaquil (Ecuador) during the Quaternary as an effect of the North Andean block tectonic escape. Tectonics, 25, TC3017, doi:10.1029/2004TC001723.
Par Bourgois
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Publié dans : Sciences
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Communauté : pour une planète plus propre
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Ice cap retreat at Grey Lake (southern Patagonia)
