Results 51 to 60 of about 906 (177)

Inversion of Induced Polarization Parameters From Time‐Domain Electromagnetic Data Using the Debye Decomposition Model

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Time‐domain electromagnetics (TEM) is a valuable tool for exploring seafloor hydrothermal deposits, which are characterized by variations in resistivity and chargeability. Several surveys using the Waseda integrated seafloor time‐domain electromagnetics (WISTEM) have been conducted.
Masayuki Motoori, Lindsey Heagy, Gosuke Hoshino, Kumpei Nagase, Takumi Sato   +4 more
wiley   +1 more source

Origin of the Magnetic Anomalies in the Southern Okinawa Trough.

Journal of geomagnetism and geoelectricity, 1992
Two-dimensional magnetic modeling was performed to investigate the magnetic structure beneath the southern Okinawa Trough. The E-W elongating magnetic anomalies accompanied with the geologic segment of the Yaeyama Graben are explained by a simple model assuming of the seismic layers of 3.6-6.4km/s with a uniform normal magnetization of 2.5A/m as the ...
OSHIDA, Atsushi, TAMAKI, Kensaku, KIMURA, Masaaki   +2 more
openaire   +2 more sources

A Decade of Global Navigation Satellite System/Acoustic Measurements of Back-Arc Spreading in the Southwestern Okinawa Trough

Frontiers in Earth Science, 2021
Long-term seafloor geodetic measurements are important for constraining submarine crustal deformation near plate boundaries. Here we present an integrated analysis of a decade of GNSS/acoustic data collected at a site 60 km to the east of northeast ...
Horng-Yue Chen, Ryoya Ikuta, Ya-Ju Hsu, Toshiaki Tsujii, Masataka Ando, Yoko Tu, Takeru Kohmi, Kiyomichi Takemoto, Koto Mizuno, Hsin Tung, Chin-Shang Ku, Cheng-Horng Lin   +11 more
doaj   +1 more source

Widespread Association of Ciliates Colonizing Gills of Shrimps Inhabiting Vents and Seeps Across the Pacific Ocean

Journal of Eukaryotic Microbiology, Volume 73, Issue 5, September/October 2026.
ABSTRACT Bacterial symbiosis is well‐documented in chemosynthesis‐based ecosystems, but associations with microeukaryotes remain overlooked. In this study, using scanning electron microscopy and 18S rDNA barcoding, we investigate the presence, diversity, and biogeographic patterns of ciliate epibionts associated with two deep‐sea caridean families ...
Lison Hey, Chong Chen, Ting Xu, Emily Cowell, Dewi Langlet, Pierre Methou   +5 more
wiley   +1 more source

Geochemistry and provenance of core sediments from the southwestern Okinawa Trough

Oceanological and Hydrobiological Studies
Understanding the sedimentary processes and provenance in the Okinawa Trough is critical for reconstructing regional tectonic evolution and sediment transport dynamics in this active back-arc basin.
Huang Kuo-Ming, Lee Yung-Tan, Chang I-An, Huang Ren-Yi, Lin Meng-Lung, Hu Yen-Tsui   +5 more
doaj   +1 more source

Distribution and Discharge of Dissolved Methane in the Middle Okinawa Trough, East China Sea

Frontiers in Earth Science, 2020
Widespread seepage of methane from seafloor sediments on continental margins are released into seawater, a portion of which may escape to the atmosphere.
Xianrong Zhang, Xianrong Zhang, Zhilei Sun, Zhilei Sun, Libo Wang, Libo Wang, Xilin Zhang, Xilin Zhang, Bin Zhai, Bin Zhai, Cuiling Xu, Cuiling Xu, Wei Geng, Wei Geng, Hong Cao, Hong Cao, Xijie Yin, Nengyou Wu, Nengyou Wu   +18 more
doaj   +1 more source

Review of Methane Seepages in the Okinawa Trough: Progress and Outlook

Geofluids, 2021
It has been two decades since the cold seeps were firstly found in the Okinawa Trough (OT). The scientific cruises and the geological surveys since then have unveiled the currently active submarine methane seeps and significantly improved the ...
Ang Li, Qing Li, Cuiling Xu, Feng Cai, Hongbin Wang   +4 more
doaj   +1 more source

Combining Multiple Markers in Environmental DNA Metabarcoding to Assess Deep-Sea Benthic Biodiversity

Frontiers in Marine Science, 2021
Environmental DNA (eDNA) metabarcoding is an emerging tool to estimate diversity by combining DNA from the environmental samples and the high-throughput sequencing.
Jun Liu, Haibin Zhang
doaj   +1 more source

Procedure‐specific temperature dependence and lag structure of urinary stone surgery: A nationwide open‐data study in Japan, 2019–2024

BJUI Compass, Volume 7, Issue 8, August 2026.
Abstract Objectives To determine whether the seasonality of urinary stone surgery and its association with ambient temperature differ between surgical procedures and to compare the time lag between temperature and each procedure. Subjects and methods We used the nationwide open data of the National Database of health insurance claims in Japan for ...
Yuto Sakurai, Takashi Kawahara, Akihito Hashizume, Masanobu Yamazaki, Teppei Takeshima, Shinnosuke Kuroda, Tomoyuki Tatenuma, Hiroji Uemura, Kazuhide Makiyama, Jun‐ichi Teranishi   +9 more
wiley   +1 more source

Hydrothermal Characteristics of the Mienhua Submarine Volcano in the Southernmost Okinawa Trough

Marine Geophysical Research, 2022
Abstract The Mienhua submarine volcano (MHV) is located in the southernmost Okinawa Trough and exhibits vigorous hydrothermal activity. This paper presents a detailed volcanic morphological analysis of the MHV, which has not been fully explored or discussed in terms of its hydrothermal characteristics and their relationship to hydrothermal ...
Tzu-Ting Chen, Ho-Han Hsu, Chih-Chieh Su, Char-Shine Liu, Yunshuen Wang, Song-Chuen Chen, Emmy T. Y. Chang, Feng-Hsin Hsu, Liang-Fu Lin, Jih-Hsin Chang, Jyun-Nai Wu, Ta-Wei Hsu, Shein-Fu Wu   +12 more
openaire   +1 more source