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INTERNATIONAL HYDROGRAPHIC
ORGANIZATION
INTERGOVERNMENTAL OCEANOGRAPHIC
COMMISSION (of UNESCO)
UNDERSEA FEATURE NAME PROPOSAL
(Sea NOTE overleaf)
Note: The boxes will expand as you fill the form.
Name Proposed:
Ocean or Sea:
Deschamps Seamount
Geometry that best defines the feature (Yes/No) :
Point
Line
Polygon
Multiple points
Northwest Pacific Ocean
Multiple lines*
Multiple
polygons*
Combination of
geometries*
Yes
* Geometry should be clearly distinguished when providing the coordinates below.
Lat. (e.g. 63°32.6’N)
15°25.58’N (summit 1)
15°17.28’N
15°23.71’N
15°29.56’N
15°35.07’N
15°35.99’N
15°31.13’N
15°25.85’N
15°16.57’N
15°17.28’N
Coordinates:
Feature
Description:
Maximum Depth :
Minimum Depth :
Total Relief :
6707 m
4065 m
2642 m
Associated Features:
CBF Rift
Chart/Map References:
Shown Named on Map/Chart:
Shown Unnamed on Map/Chart:
Within Area of Map/Chart:
Reason for Choice of Name (if a
person, state how associated with the
feature to be named):
Discovery Facts:
Supporting Survey Data, including
Track Controls:
Long. (e.g. 046°21.3’W)
132°25.81’E (summit 1)
132°22.40’E
132°04.84’E
132°05.69’E
132°17.68’E
132°27.11’E
132°37.53’E
132°40.38’E
132°29.82’E
132°22.40’E
Steepness :
Shape :
Dimension/Size :
30km×70 km
The seamount is named after late Dr. Anne Deschamps, who extensively
studied the teconics of the West Philippine Basin (known as the Philippine
Basin in the GEBCO Gazetteer) and its extinct spreading axis, the CBF
Rift. See CV for details.
Discovery Date:
Discoverer (Individual, Ship):
1998
The Japanese research vessel “Kairei”
Date of Survey:
Survey Ship:
Sounding Equipement:
May. and Jun. 2001
The Japanese survey vessel “Takuyo”
Multibeam echo sounder
Seabeam 2112
GPS without Selective Availability
0.014 nm (26 m)
6 nm
Type of Navigation:
Estimated Horizontal Accuracy (nm):
Survey Track Spacing:
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Supporting material can be submitted as Annex in analog or digital form.
Name(s):
Date:
E-mail:
Organization and Address:
Proposer(s):
Concurrer (name, e-mail, organization
and address):
Dr. Toshiya Fujiwara
Sep. 10, 2015
toshi@jamstec.go.jp
Japan Agency for Marine-Earth
Science and Technology (JAMSTEC)
2-15 Natsushima, Yokosuka 237-0061,
Japan
Dr. Serge Lallemand
Géosciences Montpellier
CC. 60, place E. Bataillon
34095 Montpellier cedex 5
E-mail: serge.lallemand@gm.univmontp2.fr
Remarks:
NOTE : This form should be forwarded, when completed :
a)
If the undersea feature is located inside the external limit of the territorial sea :to your "National Authority for Approval of Undersea Feature Names" (see page 2-9) or, if this
does not exist or is not known, either to the IHB or to the IOC (see addresses below);
b)
If at least 50 % of the undersea feature is located outside the external limits of the
territorial sea :to the IHB or to the IOC, at the following addresses :
International Hydrographic Bureau (IHB)
4, Quai Antoine 1er
B.P. 445
MC 98011 MONACO CEDEX
Principality of MONACO
Fax: +377 93 10 81 40
E-mail: info@ihb.mc
Intergovernmental Oceanographic Commission (IOC)
UNESCO
Place de Fontenoy
75700 PARIS
France
Fax: +33 1 45 68 58 12
E-mail: info@unesco.org
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Personal history of late Dr. Anne Deschamps
Given name: Anne
Family name: Deschamps
1974 February, Born in Nancy, France
2014 December, Diseased
Education
1995 B.Sc., Nancy University
1997 M.Sc., Montpellier University (major in geology)
2001 PhD, Montpellier University, France
Professional carrier:
2001 Post-doc at Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan
2003 Post-doc at Woods Hole Oceanographic Institution, USA
2005 Researcher at National Center for Scientific Research (CNRS), Marine European University
Institute (IUEM), Oceanic Domains Laboratory (LDO), Brest, France
Remarks: She has devoted most of her research activities to the understanding of the Philippine Sea
Plate from the far west, providing crucial constraints on the Gagua Ridge and Huatung Basin, to the
far east in the Mariana Trough and the Izu-Ogasawara-Mariana arc, but her major contribution
concerns the tectonic evolution of the West Philippine Basin (known as the Philippine Basin in the
GEBCO Gazetteer). She was particularly involved in high-resolution micro-bathymetry and ocean
bottom geodesy.
List of selected publications:
Deschamps, A., C. Grigné, M. Le Saout, S.A. Soule, P. Allemand, B. Van Vliet Lanoe, & F. Floc’h,
Morphology and dynamics of inflated subaqueous basaltic lava flows, Geochemistry,
Geophysics, Geosystems, 15, doi:10.1002/2014GC005274, 2014.
Deschamps A., M. A. Tivey, W. W. Chadwick Jr., & R. W. Embley, Waning magmatic activity along
the Southern Explorer Ridge revealed through fault restoration of rift topography,
Geochemistry, Geophysics, Geosystems, 14, doi:10.1002/ggge.20110, 2013.
Babonneau N., Delacourt C., Cancouet R., Sisavath E., Bachelery P., Mazuel A., Jorry S.J.,
Deschamps A., Ammann J., & Villeneuve N., Direct sediment transfer from land to deepsea: insights from new shallow-marine multibeam data at La Réunion Island, Marine
Geology 346, 47–57, 2013, http://dx.doi.org/10.1016/j.margeo.2013.08.006, 2013.
Franzetti M., P. Le Roy, C. Delacourt, T. Garlan, R. Cancouët, A. Sukhovich & A. Deschamps,
Sandwave morphologies and dynamics in a continental shelf environment: example of Banc
du Four, western Brittany, Marine Geology 346, 17–30,
http://dx.doi.org/10.1016/j.margeo.2013.07.014, 2013.
Hickey-Vargas, R., Bizimis, M. & Deschamps, A., Onset of the Indian Ocean isotopic signature in
the Philippine Sea Plate: Hf and Pb isotope evidence from Early Cretaceous terranes, Earth
and Planetary Science Letters, 268, 255-267, 2008.
Deschamps A., Shinjo R., Matsumoto T., Lee C.-S., Lallemand S.E., Wu S. & Scientific party of
KR03-04 and KR04-14 cruises, Propagators and ridge jumps in a back-arc basin, the West
Philippine Basin, Terra Nova, doi: 10.1111/j.1365-3121.2008.00824.x. 2008.
Deschamps A., Tivey M., W. Embley & R., W. Chadwick W., Quantitative study of the deformation
at the Southern Explorer Ridge using high-resolution bathymetric data. Earth and Planetary
Science Letters, 259, 1-17, 2007.
Asada M., Deschamps A, Fujiwara T, & Nakamura Y, Submarine lava flow emplacement and
faulting in the axial valley of two morphologically distinct spreading segments of the
Mariana back-arc basin from Wadatsumi side-scan sonar images, Geochemistry,
Geophysics, Geosystems , doi: 10.1029/2006GC001418, 2007.
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Deschamps A., T. Fujiwara, M. Asada, L. Montési, & P. Gente, Faulting and volcanism in the axial
valley of the slow spreading center of the Mariana back-arc basin from Wadatsumi side-scan
sonar images, Geochemistry, Geophysics, Geosystems, 6, 1, doi : 10.1029/2004GC000881,
2005.
Deschamps A. & T. Fujiwara, Asymmetric accretion along the slow spreading Mariana Ridge,
Geochemistry, Geophysics, Geosystems, 4, 10, 8622, doi:10.1029/2003GC000537, 2003.
Deschamps A. & S. Lallemand, Geodynamic setting of Izu-Bonin-Mariana boninites, in IntraOceanic Subduction Systems: Tectonic and Magmatic Processes, Journal of Geophysical
Society, London, Special Publication, 219, 163-185, 2003.
Deschamps A. & S. Lallemand, The West Philippine Basin: an Eocene to Early Oligocene back-arc
basin opened between two opposed subduction zones, Journal Geophysical Research,
2001JB001706, vol. 107, Dec. 2002.
Deschamps A., K. Okino, & K. Fujioka, Late amagmatic extension along the central and eastern
segments of the West Philippine Basin fossil spreading axis, Earth Planetary Science
Letters, 203, 277-293, 2002.
Deschamps A., P. Monié, S. Lallemand, S.-K. Hsu, & K.Y. Yeh, Evidence for Early Cretaceous crust
trapped in the Philippine Sea Plate, Earth Planetary Science Letters 179, 3-4, 503-516, 2000.
Deschamps A., S. Lallemand, & S. Dominguez, The last spreading episode of the West Philippine
Basin revisited, Geophysical Research Letters, vol. 26, n.14, p. 2073, 1999.
Deschamps A., S. Lallemand, & J.-Y. Collot, A detailed study of the Gagua Ridge : A Fracture Zone
uplifted during a plate reorganization in the Mid-Eocene, Marine Geophysical Researches,
20, 5, 403-423, 1998.
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Fig. 1. Bathymetric map of the Deschamps Seamount. Contours are in 100 m.
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Fig. 2. Bathymetric map of the Deschamps Seamount, showing with track lines. Contours are in 100 m.
Fig. 3. Bathymetric profiles across the Deschamps Seamount.