FN Archimer Export Format
PT J
TI Shallow gas hydrates off southwest Taiwan and their mechanisms
BT 
AF Huang, Yin-Sheng
   Hsu, Shu-Kun
   Su, Chih-Chieh
   Lin, Andrew Tien-Shun
   Yu, Pai-Sen
   Babonneau, Nathalie
   Ratzov, Gueorgui
   Lallemand, Serge
   Huang, Pi-Chuen
   Lin, Shiao-Shan
   Lin, Jing-Yi
   Wei, Kuo-Yen
   Chang, Yuan-Pin
   Yu, Neng-Ti
   Tsai, Ching-Hui
AS 1:1;2:1,2;3:3;4:1;5:4;6:5;7:6;8:7;9:1;10:2;11:1,2;12:8;13:9;14:10;15:2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;
C1 Department of Earth Sciences, National Central University, Taoyuan, Taiwan
   Center for Environmental Studies, National Central University, Taoyuan, Taiwan
   Institute of Oceanography, National Taiwan University, Taipei, Taiwan
   Taiwan Ocean Research Institute, Kaohsiung, Taiwan
   Géosciences Océan, IUEM, Université de Brest, Brest, France
   Université de Nice Sophia Antipolis, Nice, France
   Université de Montpellier, Géosciences Montpellier, CNRS, Montpellier, France
   Department of Geosciences, National Taiwan University, Taipei, Taiwan
   Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
   Center for General Education, National Tsing Hua University, Hsinchu, Taiwan
C2 UNIV NATL CENT, TAIWAN
   UNIV NATL CENT, TAIWAN
   UNIV NATL TAIWAN NTU, TAIWAN
   TAIWAN OCEAN RES INST TORI, TAIWAN
   UBO, FRANCE
   UNIV NICE, FRANCE
   UNIV MONTPELLIER, FRANCE
   UNIV NATL TAIWAN NTU, TAIWAN
   UNIV SUN YAT SEN, TAIWAN
   UNIV TSINGHUA, TAIWAN
UM LGO
IF 2.5
TC 4
UR https://archimer.ifremer.fr/doc/00680/79253/81769.pdf
LA English
DT Article
CR MD 214 / EAGER
BO Marion Dufresne
DE ;MD core;Shallow gas hydrate;Hydrate dissociation;Off SW Taiwan
AB We have collected two shallow gas hydrate samples at two sites having different geological settings off southwest Taiwan during the cruise MD214 in 2018. The first core site, MD18-3542, is on the South Yuan-An East Ridge at ~ 1200 m water deep, where a structural unconformity covered by fine-silt sediments appears at ~ 5.5 m below the seafloor. The second core site, MD18-3543, is close to the Good-Weather Ridge at ~ 1100 m water deep, where a gas-related pockmark structure and authigenic carbonates are present at shallow strata with fine-silt sediments near the seafloor. Sediment properties of core MD18-3542 are distinctively different above and below the layer corresponding to the unconformity. Both cores show obvious gaps or voids in the lower core halves. The core features could be linked to the dissociated methane upward migrating from deep strata. Core site settings with upwelling methane would favor the formation of shallow gas hydrates. At site MD18-3542, the shallow hydrate could be formed due to high concentration methane kept beneath the unconformity covered by fine-silt sediments. At site MD18-3543, the shallow hydrate could be formed due to an extremely high flux of upwelling methane trapped either beneath the authigenic carbonates or fine-silt sediments. 
PY 2021
PD MAR
SO Marine Geophysical Research
SN 0025-3235
PU Springer Science and Business Media LLC
VL 42
IS 1
UT 000619228100001
DI 10.1007/s11001-021-09429-x
ID 79253
ER

EF