FN Archimer Export Format
PT J
TI Distribution of the East China Sea continental shelf basins and depths of magnetic sources
BT 
AF LIN, Jing-Yi
   SIBUET, Jean-Claude
   HSU, S
AS 1:1;2:1;3:2;
FF 1:PDG-DOP-DCB-GM-LGG;2:PDG-DOP-DCB-GM-LGG;3:;
C1 IFREMER, Ctr Brest, F-29280 Plouzane, France.
   Natl Cent Univ, Inst Geophys, Chungli 32054, Taiwan.
C2 IFREMER, FRANCE
   UNIV NATL CENT NCU, TAIWAN
SI BREST
SE PDG-DOP-DCB-GM-LGG
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 1.061
TC 29
UR https://archimer.ifremer.fr/doc/2005/publication-1342.pdf
LA English
DT Article
DE ;Depth of magnetic sources;Spectral analysis;Backarc basins;East China Sea
AB The acoustic basement map of the East China Sea, established by the Shanghai Offshore Petroleum Bureau with all available industry seismic data, shows the existence of a 30-km-wide, 10-km-deep basin, that we named the Ho Basin. The Ho Basin belongs to a series of elongated deep basins extending over 600 km east of the Taiwan-Sinzi Ridge and flanked to the East by a ridge named the Longwan Ridge in its northern part. This new system of basin and ridge was probably formed during middle Miocene, sometimes in between rifting episodes occurring in the Taipei Basin and Okinawa Trough. It. complements the already defined system of five belts of back-arc basins and associated arc volcanic ridges in the East China Sea, which are progressively younger from the Mainland China shoreline (late Cretaceous/early Tertiary) to the Okinawa Trough (Present). In order to determine the crustal thickness beneath the East China Sea continental shelf, we used a power Spectrum method to calculate the depth of the top (Zt) and the centroid (Zo) of the magnetic basement by fitting a straight line through the high- and low-wave number portions of the power spectrum, respectively. Then, the depth of the base (Zb) is estimated from Zt and Zo. After optimizing the size of the data squares, we demonstrate that, except for basins more than 10 km deep, Zt corresponds to the basement depths and Zb, the depth of the Curie point, to the Moho depth. As wide-angle reflection and refraction data are scarce in the East China Sea, this method provides a way to characterize the crustal thickness of the East China Sea and to compute the theoretical heat flow values.
PY 2005
PD JUN
SO Earth, Planets and Space
SN 1343-8832
PU Terrapub
VL 57
IS 1-10
UT 000233985600006
BP 1063
EP 1072
ID 1342
ER

EF