Julien Collot

Julien Collot
Courriel
julien.collot@gouv.nc
Téléphone
+687 27 17 29
Spécialité
Géologie marine Géophysique
Adresse postale

Service de la géologie, DIMENC, 1 ter rue Unger, BP M2, 98849 Nouméa, Nouvelle-Calédonie

Numéro ORCID
Liens
Formation

2009 : doctorat en géosciences marines, laboratoire de géophysique et géodynamique, IFREMER, Brest / service de la géologie de la DIMENC, Nouméa.

2005 : diplôme d’ingénieur de l’École de physique du globe de Strasbourg (EOST).

2005 : DEA en géophysique interne, EOST Université Louis-Pasteur, Strasbourg.

Domaines d'expertise
  • acquisition, traitement et interprétation de données géophysique marine ;
  • évolution des bassins sédimentaires ;
  • processus tectoniques et déformation de la lithosphère ;
  • évolution géodynamique du Sud-Ouest Pacifique.

Mes activités de recherche se concentrent sur l’étude des processus tectoniques à l’échelle lithosphérique, tels que l’obduction ou l’initiation des zones de subduction. J’utilise pour cela une approche alliant observations marines et terrestres.

Campagnes

Campagnes océanographiques :

Embarqué :

2019 : KANADEEP2, leg2, N/O L’Atalante, 15 jours, https://doi.org/10.17600/18000883

2018 : SEDLAB, leg2, co-chef de mission, N/O Alis, 14 jours, https://doi.org/10.17600/18000401

2017: Expedition IODP 371, physical properties specialist, N/F Joides Resolution, 62 jours, http://publications.iodp.org/proceedings/371/371title.html

2015: TECTA, chef de mission, N/O L’Atalante, 39 jours, http://dx.doi.org/10.17600/15001300

2015 : NEPSIS, co-chef de mission, 12 jours

2014 : TAN1409, co-chef de mission, N/O Tangaroa, 24 jours, http://shop.gns.cri.nz/sr_2014-072-pdf/

2012 : IPOD, chef de mission, N/O Alis, 21 jours, https://doi.org/10.17600/12100080

2011 : FUTUNA2, leg 2, N/O L’Atalante, 15 jours, https://doi.org/10.17600/11010180

2010 : WALLISPLAC, N/O L’Atalante, 15 jours, https://doi.org/10.17600/10010130

2004 : ZONECO11, N/O L’Atalante, 30 jours, https://doi.org/10.17600/4010090

2004 : NOUCAPLAC2, N/O L’Atalante, 20 jours, https://doi.org/10.17600/18000825

Équipe à terre :

2019 : TONGA, N/O L’Atalante, https://doi.org/10.17600/18000884

2019: ECOSAT III (in2019-v04), N/O Investigator, https://www.cmar.csiro.au/data/trawler/survey_details.cfm?survey=IN2019%5FV04

2017: KANADEEP1, N/O Alis, https://doi.org/10.17600/17003800

2016 : KANACONO, N/O Alis, https://doi.org/10.17600/16003900

2016 : ECOSAT II (in2016-t01), N/O Investigator, https://www.cmar.csiro.au/data/trawler/survey_details.cfm?survey=IN2016%5FT01

2015 : VESPA, N/O L’Atalante, http://dx.doi.org/10.17600/15001100

2013: TAN1312, N/O Tangaroa, http://shop.gns.cri.nz/sr_2014-005-pdf/

2012 : ECOSAT I (ss2012-v06), N/O Southern Surveyor, https://www.cmar.csiro.au/data/trawler/survey_details.cfm?survey=SS2012%5FV06

Publications

2020

Sutherland, R., G. R. Dickens, P. Blum, C. Agnini, L. Alegret, G. Asatryan, J. Bhattacharya, A. Bordenave, L. Chang, J. Collot, M. J. Cramwinckel, E. Dallanave, M. K. Drake, S. J. G. Etienne, M. Giorgioni, M. Gurnis, D. T. Harper, H.-H. M. Huang, A. L. Keller, A. R. Lam, H. Li, H. Matsui, H. E. G. Morgans, C. Newsam, Y.-H. Park, K. M. Pascher, S. F. Pekar, D. E. Penman, S. Saito, W. R. Stratford, T. Westerhold, and X. Zhou, 2020, Continental-scale geographic change across Zealandia during Paleogene subduction initiation, Geology, https://doi.org/10.1130/g47008.1

Collot, J., Patriat, M., Sutherland, R., Williams, S., Cluzel, D., Seton, M., Pelletier, B., Roest, W.R., Etienne, S., Bordenave, A., Maurizot, P. in press. Geodynamic of the SouthWest Pacific: a brief review and relations to New Caledonia geology. In: Maurizot P., and Mortimer, N. (ed.), New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2018-5

Maurizot, P., Cluzel, D., Meffre, S., Campbell, H.J., Collot, J., Sevin, B. in press. Pre-Late Cretaceous basement terranes of the Gondwana active margin of New Caledonia. In: Maurizot P., and Mortimer, N. (ed.), New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2016-11

Maurizot, P., Bordenave, A., Cluzel, D., Collot, J., Etienne, S. in press. Late Cretaceous to Eocene cover of New Caledonia: from rifting to convergence. In: Maurizot P., and Mortimer, N. (ed.), New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2017-18

Maurizot, P., Cluzel, D., Patriat, M., Collot, J., Iseppi, M., Lesimple, S., Secchiari, A., Bosch, D., Montanini, A., Macera, P., Davies, H.L. in press. The Eocene Subduction-Obduction Complex of New Caledonia. In: Maurizot P., and Mortimer, N. (ed.), New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2018-70

Maurizot, P., Collot, J., Cluzel, D., Patriat, M. in press. The Loyalty Islands and Ridge, New Caledonia. In: Maurizot P., and Mortimer, N. (ed.), New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2017-24

Sevin, B., Maurizot, P., Cluzel, D., Tournadour, E., Etienne, S., Folcher, N., Jeanpert, J., Collot, J., Iseppi, M., Meffre, S., Patriat, M. in press. Post obduction evolution of New Caledonia. In: Maurizot P., and Mortimer, N. (ed.) New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2018-74

Maurizot, P., Sevin, B., Lesimple, S., Collot, J., Jeanpert, J., Robineau, B., Patriat, M., Etienne, S., Monnin, C. in press. Mineral resources and prospectivity of non-ultramafic rocks of New-Caledonia. In: Maurizot P., and Mortimer, N. (ed.) New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, https://doi.org/10.1144/M51-2016-9

2019

Mortimer, N., Dadd, K.A., O'Toole, L., Crundwell, M.P., Seton, M., Williams, S., Etienne, S., Collot, J., in press. Eocene nephelinite and basanite from the Fairway Ridge, North Zealandia. Deep-Sea Research Part I, 152, https://doi.org/10.1016/j.dsr.2019.103101

Patriat, M., Falloon, T., Danyushevsky, L., Collot, J., Jean, M.M., Hoernle, K., Hauff, F., Maas, R., Woodhead, J.D., Feig, S.T., 2019. Subduction initiation terranes exposed at the front of a 2 Ma volcanically-active subduction zone. Earth and Planetary Science Letters 508, 30-40. doi: https://doi.org/10.1016/j.epsl.2018.12.011

Pattier, F., S. Etienne, J. Collot, M. Patriat, E. Tournadour, W. R. Roest, and P. Rouillard (2019), Neogene-Quaternary architecture and sedimentary processes on an isolated carbonate-fed deep-water basin (Fairway Basin, Southwest Pacific), Marine Geology, 413, 27-47, doi: https://doi.org/10.1016/j.margeo.2019.04.003.

Sutherland, R., G. R. Dickens, P. Blum, C. Agnini, L. Alegret, J. Bhattacharya, A. Bordenave, L. Chang, J. Collot, M. J. Cramwinckel, E. Dallanave, M. K. Drake, S. J. G. Etienne, M. Giorgioni, M. Gurnis, D. T. Harper, H.-H. M. Huang, A. J. Keller, A. R. Lam, H. Li, H. Matsui, C. Newsam, Y.-H. Park, K. M. Pascher, S. F. Pekar, D. E. Penman, S. Saito, W. R. Stratford, T. Westerhold, and X. Zhou, 2019, Tasman frontier subduction initiation and Paleogene climate, Expedition 371 of the R/V JOIDES Resolution, Townsville, Australia, to Hobart, Australia; Sites U1506-U1511, 27 July - 26 September 2017, Proceedings of the International Ocean Discovery Program, https://doi.org/10.14379/iodp.proc.371.2019

2018

Etienne, S., J. Collot, R. Sutherland, M. Patriat, F. Bache, P. Rouillard, S. Henrys, D. Barker, and C. Juan, 2018, Deepwater sedimentation and Cenozoic deformation in the Southern New Caledonia Trough (Northern Zealandia, SW Pacific), Marine and Petroleum Geology, 92, pp. 764-779, https://doi.org/10.1016/j.marpetgeo.2017.12.007

Stratford, W.R., Sutherland, R., Collot, J., 2018, Physical properties and seismic-reflection interpretation of bathyal marine sediments affected by carbonate and silica diagenesis in the Tasman Sea, 2018, New Zealand Journal of Geology and Geophysics, https://doi.org/10.1080/00288306.2017.1414065

Dallanave, E., Agnini, C., Pascher, K., Maurizot, P., Bachtadse, V., Hollis, C., Dickens, G., Collot, J., Monesi, E., 2018, Magneto-biostratigraphic constraints of the Eocene micrite-calciturbidite transition in New Caledonia: tectonic implications, New Zealand Journal of Geology and Geophysics, https://doi.org/10.1080/00288306.2018.1443946

Patriat, M., J. Collot, S. Etienne, S. Poli, C. Clerc, N. Mortimer, F. Pattier, C. Juan, and W. R. Roest, 2018, New Caledonia Obducted Peridotite Nappe: Offshore Extent and Implications for Obduction and Postobduction Processes, Tectonics, 37(4), 1077-1096, https://doi.org/10.1002/2017TC004722

Mortimer, N., P. B. Gans, S. Meffre, C. E. Martin, M. Seton, S. Williams, R. E. Turnbull, P. G. Quilty, S. Micklethwaite, C. Timm, R. Sutherland, F. Bache, J. Collot, P. Maurizot, P. Rouillard, and N. Rollet (2018), Regional volcanism of northern Zealandia: post-Gondwana break-up magmatism on an extended, submerged continent, Geological Society, London, Special Publications, Large Igneous Provinces from Gondwana and Adjacent Regions, 463, 199-226, https://doi.org/10.1144/SP463.9

Sutherland, R., G. R. Dickens, P. Blum, C. Agnini, L. Alegret, J. Bhattacharya, A. Bordenave, L. Chang, J. Collot, M. J. Cramwinckel, E. Dallanave, M. K. Drake, S. J. G. Etienne, M. Giorgioni, M. Gurnis, D. T. Harper, H.-H. M. Huang, A. L. Keller, A. R. Lam, H. Li, H. Matsui, C. Newsam, Y.-H. Park, K. M. Pascher, S. F. Pekar, D. E. Penman, S. Saito, W. R. Stratford, T. Westerhold, and X. Zhou, 2018, Tasman Frontier subduction initiation and paleogene climate, Integrated Ocean Drilling Program: Preliminary Reports, 371, 1-44.

McKay, R., N. Exon, D. Müller, K. Gohl, M. Gurnis, A. Shevenell, S. Henrys, F. Inagaki, D. Pandey, J. Whiteside, T. van de Flierdt, T. Naish, V. Heuer, Y. Morono, M. Coffin, M. Godard, L. Wallace, S. Kodaira, P. Bijl, J. Collot, G. Dickens, B. Dugan, A. G. Dunlea, R. Hackney, M. Ikehara, M. Jutzeler, L. McNeill, S. Naik, T. Noble, B. Opdyke, I. Pecher, L. Stott, G. Uenzelmann-Neben, Y. Vadakkeykath, and U. G. Wortmann (2018), Developing community-based scientific priorities and new drilling proposals in the southern Indian and southwestern Pacific oceans, Scientific Drilling, 24, 61-70, https://doi.org/10.5194/sd-24-61-2018

2017

Collot, J., M. Patriat, S. Etienne, P. Rouillard, F. Soetaert, C. Juan, B. Marcaillou, C. Clerc, M. Maurizot, F. Pattier, E. Tournadour, G. Palazzin, B. Sevin and A. Privat, 2017, Deepwater fold-and-thrust belt along New Caledonia's western margin: relation to post-obduction vertical motions, Tectonics, 36(10), 2108-2122, https://doi.org/10.1002/2017TC004542

Sutherland, R., Collot, J., Bache, F., Henrys, S., Barker, D., Browne, G.H., Lawrence, M.J.F., Morgans, H., Hollis, C.J., Clowes, C., Mortimer, N., Rouillard, P., Gurnis, M., Etienne, S., Stratford, W., 2017. Widespread compression associated with Eocene Tonga-Kermadec subduction initiation, Geology, 45(4), 355-358, https://doi.org/10.1130/G38617.1

Mortimer, N., H. Campbell, A. J. Tulloch, P. R. King, V. Stagpoole, R. A. Wood, M. S. Rattenbury, R. Sutherland, C. J. Adams, J. Collot, and M. Seton, 2017, Zealandia: Earth's hidden continent, GSA Today, 27(3), 27-35, https://doi.org/10.1130/GSATG321A.1

Rouillard, P., Collot, J., Sutherland, R., Bache, F., Patriat, M., Etienne, S., and Maurizot, M., 2017, Seismic stratigraphy and paleogeographic evolution of Fairway Basin, Northern Zealandia, Southwest Pacific: from Cretaceous Gondwana breakup to Cenozoic Tonga–Kermadec subduction: Basin Research, 29, 189-212. https://doi.org/10.1111/bre.12144

2016

Miles, P., Pubellier, M., and Collot, J., 2016, Structural map of the western Pacific Ocean at 1:20 000 000 scale: Commission Carte Géologique Mondiale CGM-CGMW, v. ISBN: 9782917310281, https://doi.org/10.14682/2016STRWPAC

2015

Patriat, M., Collot, J., Danyushevski, L., Fabre, M., Meffre, S., Falloon, T., Rouillard, P., Pelletier, B., Roach, M., and Fournier, M., 2015, Propagation of back-arc extension into the arc lithosphere in the southern New Hebrides volcanic arc, Geochemistry Geophysics Geosystems, 10, 3142-3159, https://doi.org/10.1002/2015GC005717

Maurizot, P., Cabioch, G., Fournier, F., Leonide, P., Sebih, S., Rouillard, P., Montaggioni, L., Collot, J., Martin-Garin, B., and Chaproniere, G., 2016, Post-obduction carbonate system development in New Caledonia (Népoui, Lower Miocene), Sedimentary Geology, 331, p. 42-62, https://doi.org/10.1016/j.sedgeo.2015.11.003

2014

Bache, F., N. Mortimer, R. Sutherland, J. Collot, P. Rouillard, V. Stagpoole, and A. Nicol 2014, Seismic stratigraphic record of transition from Mesozoic subduction to continental breakup in the Zealandia sector of eastern Gondwana, Gondwana Research, 26(3), 1060-1078, https://doi.org/10.1016/j.gr.2013.08.012

2012

Hackney, R., Sutherland, R., and Collot, J., 2012, Rifting and subduction initiation history of the New Caledonia Trough, southwest Pacific, constrained by process-oriented gravity models: Geophysical Journal International, 189(3), 1293-1305, https://doi.org/10.1111/j.1365-246X.2012.05441.x

Cluzel, D., P. Maurizot, J. Collot, B. Sevin, 2012, An outline of the geology of New Caledonia; from Permian-Mesozoic South-Gondwana active margin to Tertiary obduction and supergene evolution. Eposides, 35(1), 72-86, https://doi.org/10.18814/epiiugs/2012/v35i1/007

Bache, F., R. Sutherland, V. Stagpoole, J. Collot, P. Rouillard, 2012, Stratigraphy of the southern Norfolk Ridge and the Reinga Basin: a record of initiation of Tonga-Kermadec-Northland subduction in the southwest Pacific, Earth and Planetary Science Letters, 321-322, 41-53, https://doi.org/10.1016/j.epsl.2011.12.041

Collot J., M. Vendé-Leclerc, P. Rouillard, Y. Lafoy, L. Géli, 2012, Map Helps Unravel Complexities of the Southwestern Pacific Ocean, Eos transaction of American Geophysical Union, 93(1), 1-2, https://doi.org/10.1029/2012EO010001

2010

Sutherland, R.; Collot, J.; Lafoy, Y.; Logan, G.A.; Hackney, R.; Stagpoole, V.M.; Uruski, C.I.; Hashimoto, T.; Higgins, K.; Herzer, R.H.; Wood, R.A.; Mortimer, N.; Rollet, N., 2010, Lithosphere delamination with foundering of lower crust and mantle caused permanent subsidence of New Caledonia Trough and transient uplift of Lord Howe Rise during Eocene and Oligocene initiation of Tonga-Kermadec subduction, western Pacific. Tectonics, 29: TC2004, https://doi.org/10.1029/2009TC002476

2009

Collot, J., R. H. Herzer, Y. Lafoy, and L. Géli, 2009, Mesozoic history of the Fairway - Aotea Basin: implications regarding the early stages of Gondwana fragmentation, Geochemistry Geophysics Geosystems, 10(Q12019), https://doi.org/10.1029/2009GC002612

Nouzé, H., E. Cosquer, J. Collot, J.-P. Foucher, F. Klingelhoefer, Y. Lafoy, and L. Géli, 2009, Geophysical characterization of bottom simulating reflectors in the Fairway Basin (off New Caledonia, Southwest Pacific), based on high resolution seismic profiles and heat flow data, Marine Geology, 266(1-4), 80-90, https://doi.org/10.1016/j.margeo.2009.07.014

2008

Collot, J., L. Géli, Y. Lafoy, R. Vially, D. Cluzel, F. Klingelhöefer, and H. Nouzé, 2008, Tectonic history of northern New Caledonia Basin from deep offshore seismic reflection: Relation to late Eocene obduction in New Caledonia, southwest Pacific, Tectonics, 27(TC6006), https://doi.org/10.1029/2008TC02263

2007

Klingelhoefer, F., Y. Lafoy, J. Collot, E. Cosquer, L. Géli, H. Nouzé, and R. Vially, 2007, Crustal structure of the basin and ridge system west of New Caledonia (southwest Pacific) from wide-angle and reflection seismic data, Journal of Geophysical Research - Solid Earth, 112(B11102), https://doi.org/10.1029/2007JB005093