東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Fluid distribution along the Nankai-...

Akuhara, Takeshi.

Linked to FindBook

Google Book

Amazon

博客來

Fluid distribution along the Nankai-Trough megathrust ault off the Kii Peninsula = inferred from receiver function analysis /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Fluid distribution along the Nankai-Trough megathrust ault off the Kii Peninsula/ by Takeshi Akuhara.
Reminder of title:	inferred from receiver function analysis /
Author:	Akuhara, Takeshi.
Published:	Singapore :Springer Singapore : : 2018.,
Description:	xvi, 94 p. :ill. (some col.), digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Thrust faults (Geology) - Japan. -
Online resource:	http://dx.doi.org/10.1007/978-981-10-8174-3
ISBN:	9789811081743

Fluid distribution along the Nankai-Trough megathrust ault off the Kii Peninsula = inferred from receiver function analysis /
Akuhara, Takeshi.

Fluid distribution along the Nankai-Trough megathrust ault off the Kii Peninsulainferred from receiver function analysis /[electronic resource] :by Takeshi Akuhara. - Singapore :Springer Singapore :2018. - xvi, 94 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

This thesis explores fluid distribution along the Nankai-Trough megathrust fault around the Kii Peninsula of Japan, where devastating earthquakes are expected to occur in the near future. Exploring fluid distribution along subduction zones is an important issue because the fluid is considered to control the occurrence of earthquakes. One of the effective strategies to estimate fluid content is retrieving receiver functions (RFs) from seismograms, but in the case of ocean-bottom seismometers (OBSs), noisy P-wave reverberations within the seawater column make such an analysis difficult. The author therefore developed a novel technique to suppress the water reverberations, which allows obtaining the fluid distribution data along a wide depth range on the plate interface. This thesis first presents the new technique, called the water layer filter method, and demonstrates its efficiency by using both synthetic and observation data. Then, using the method, a receiver function image of the Philippine Sea Plate is constructed to reveal dehydration processes of the subducting oceanic crust around the Kii Peninsula. Finally, the author performs high-frequency receiver function inversion analysis. The results indicate the presence of a thin fluid-rich sediment layer along the megathrust fault off the Kii Peninsula that acts as a pathway of fluid. Nowadays, the number of offshore observations is increasing worldwide. In this respect, the attempt to better analyze OBS data employing the new method will become more important in future studies.

ISBN: 9789811081743

Standard No.: 10.1007/978-981-10-8174-3doiSubjects--Topical Terms:

3301760
Thrust faults (Geology)
--Japan.

LC Class. No.: QE511.46 / .A384 2018

Dewey Class. No.: 551.872

Fluid distribution along the Nankai-Trough megathrust ault off the Kii Peninsula = inferred from receiver function analysis /
LDR:02625nmm a2200313 a 4500 001 2133854
003 DE-He213
005 20180912150150.0
006 m d
007 cr nn 008maaau
008 181005s2018 si s 0 eng d
020 $a 9789811081743 $q (electronic bk.)
020 $a 9789811081736 $q (paper)
024 7 $a 10.1007/978-981-10-8174-3 $2 doi
035 $a 978-981-10-8174-3
040 $a GP $c GP
041 0 $a eng
050 4 $a QE511.46 $b .A384 2018
072 7 $a PHVG $2 bicssc
072 7 $a SCI032000 $2 bisacsh
082 0 4 $a 551.872 $2 23
090 $a QE511.46 $b .A315 2018
100 1 $a Akuhara, Takeshi. $3 3301759
245 1 0 $a Fluid distribution along the Nankai-Trough megathrust ault off the Kii Peninsula $h [electronic resource] : $b inferred from receiver function analysis / $c by Takeshi Akuhara.
260 $a Singapore : $b Springer Singapore : $b Imprint: Springer, $c 2018.
300 $a xvi, 94 p. : $b ill. (some col.), digital ; $c 24 cm.
490 1 $a Springer theses, $x 2190-5053
520 $a This thesis explores fluid distribution along the Nankai-Trough megathrust fault around the Kii Peninsula of Japan, where devastating earthquakes are expected to occur in the near future. Exploring fluid distribution along subduction zones is an important issue because the fluid is considered to control the occurrence of earthquakes. One of the effective strategies to estimate fluid content is retrieving receiver functions (RFs) from seismograms, but in the case of ocean-bottom seismometers (OBSs), noisy P-wave reverberations within the seawater column make such an analysis difficult. The author therefore developed a novel technique to suppress the water reverberations, which allows obtaining the fluid distribution data along a wide depth range on the plate interface. This thesis first presents the new technique, called the water layer filter method, and demonstrates its efficiency by using both synthetic and observation data. Then, using the method, a receiver function image of the Philippine Sea Plate is constructed to reveal dehydration processes of the subducting oceanic crust around the Kii Peninsula. Finally, the author performs high-frequency receiver function inversion analysis. The results indicate the presence of a thin fluid-rich sediment layer along the megathrust fault off the Kii Peninsula that acts as a pathway of fluid. Nowadays, the number of offshore observations is increasing worldwide. In this respect, the attempt to better analyze OBS data employing the new method will become more important in future studies.
650 0 $a Thrust faults (Geology) $z Japan. $3 3301760
650 1 4 $a Earth Sciences. $3 642591
650 2 4 $a Geophysics/Geodesy. $3 891016
650 2 4 $a Geotechnical Engineering & Applied Earth Sciences. $3 1565915
650 2 4 $a Structural Geology. $3 896345
710 2 $a SpringerLink (Online service) $3 836513
773 0 $t Springer eBooks
830 0 $a Springer theses. $3 1314442
856 4 0 $u http://dx.doi.org/10.1007/978-981-10-8174-3
950 $a Earth and Environmental Science (Springer-11646)