Results 41 to 50 of about 418,217 (192)

Resolving Continental Magma Reservoirs With 3D Surface Wave Tomography

Geochemistry, Geophysics, Geosystems, 2022
Surface wave tomography is widely used to improve our understanding of continental magma reservoirs that may be capable of fueling explosive volcanic eruptions.
Ross Maguire, Brandon Schmandt, Min Chen, Chengxin Jiang, Jiaqi Li, Justin Wilgus   +5 more
doaj   +1 more source

Microplate Tectonics Through Earth History and Across Solid Multispheres

Geological Society of China Bulletin, EarlyView.
The evolution of tectonic microplates throughout Earth´s history as well as the transitions between microplates across different solid spheres offers a novel approach to expanding the traditional plate tectonics theory. ABSTRACT The evolution of tectonic microplates throughout Earth's history as well as the transitions between microplates across ...
Sanzhong Li, Yanhui Suo, Jie Zhou, Guozheng Sun, Jianping Zhou, Xianzhi Cao, Bo Liu, Lingli Guo, Zhaoxia Jiang, Qianqian Li, Shujuan Zhao, Long Chen, Xi Wang, Jun Hu, Xiaohui Li, Xiyao Li, Wenyong Duan, Lin Liu, Jie Liu, Guangzeng Wang, Pengcheng Wang, Qingbin Guan, Dingshan Deng, Xu Han, Liangliang Wang, Zihao Hu, Qiuling Liu, Heda Wang, Zihan Tian, Hans‐Peter Schertl   +29 more
wiley   +1 more source

Solidified magma reservoir derived from active source seismic experiments in the Aira caldera, southern Kyushu, Japan

Earth, Planets and Space, 2023
The Aira caldera, located in southern Kyushu, Japan, originally formed 100 ka, and its current shape reflects the more recent 30 ka caldera-forming eruptions (hereafter, called the AT eruptions). This study aimed to delineate the detailed two-dimensional
Hiroki Miyamachi, Hiroshi Yakiwara, Reiji Kobayashi, Shuichiro Hirano, Takeshi Kubo, Masakazu Souda, Kenyu Sakao, Naohiro Unno, Takeshi Matsushima, Kazunari Uchida, Rintaro Miyamachi, Kenshin Isoda, Yoshiko Teguri, Yoshinosuke Kamiya, Agnis Triahadini, Hiroshi Shimizu, Hiroshi Katao, Takuo Shibutani, Takeshi Tameguri, Yusuke Yamashita, Tsutomu Miura, Jun Nakagawa, Itaru Yoneda, Shinya Kato, Kosei Takishita, Kazuho Nakai, Yuta Maeda, Toshiki Watanabe, Shinichiro Horikawa, Kenjiro Matsushiro, Takashi Okuda, Shuhei Tsuji, Naoki Sogawa, Daima Hasegawa, Kazuo Nakahigashi, Eiji Kurashimo, Tomoaki Yamada, Hideji Abe, Miwako Ando, Shinichi Tanaka, Satoshi Ikezawa, Takaya Iwasaki, Masanao Shinohara, Toshinori Sato, Mare Yamamoto, Ryosuke Azuma, Satoshi Hirahara, Takashi Nakayama, Syuichi Suzuki, Shuhei Otomo, Ryota Hino, Tomoki Tsutsui, Yusuke Inoue, Ryuichi Takei, Yuya Tada, Hiroaki Takahashi, Yoshio Murai, Hiroshi Aoyama, Mako Ohzono, Takahiro Shiina, Masamitsu Takada, Masayoshi Ichiyanagi, Teruhiro Yamaguchi, Natsuki Ono, Kazuma Saito, Chihiro Ito, Yuuki Susukida, Tatsuya Nakagaki, Yasuhisa Tanaka, Yasuhiko Akinaga   +69 more
doaj   +1 more source

Quantification of Sulfur Speciation in Apatites: Comparison of the XAS, XPS and EPMA Techniques

Geostandards and Geoanalytical Research, EarlyView.
Key Points Sulfur speciation in apatites has been determined by S K‐edge X‐ray absorption near‐edge structure (XANES) spectroscopy, S 2p X‐ray photoelectron spectroscopy (XPS) and electron probe microanalysis (EPMA). XANES provides the most sensitive and accurate quantification of sulfur speciation.
Yuzhou Feng, Yuanming Pan, Leo Ka Long Cheung, Reza Deevsalar, Jason Maley, Huayong Chen, Haoran Dou, Mohsen Shakouri, Qunfeng Xiao   +8 more
wiley   +1 more source

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

Terra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source

'Red Tourmaline' [Poem]

Magma 88: Underworld. 2024. Poetry Journal.
Scott, Richard
core   +4 more sources

Rheology-dependent magma reservoir pressurization history constrained by the deformation cycle of Okmok volcano, Alaska

Frontiers in Earth Science
The eruption cycle of a volcano is controlled by the subsurface migration and storage of magma. The specific characteristics of the magma migration and spatial distribution of material properties produce a specific deformation signature on the Earth’s ...
Jared M. Long-Fox, Sui Tung, Theodore Donovan, Timothy Masterlark   +3 more
doaj   +1 more source

Formation and mechanics of magma reservoirs in Iceland [PDF]

Geophysical Journal International, 1987
Summary Provided magma flow in a partially molten layer follows Darcy's law of flow in porous media, it can be demonstrated that magma in the proposed magma layer beneath Iceland flows towards regions of reduced crustal thickness. In these regions, magma accumulates to form partially molten magma reservoirs, which are thus located in the magma layer.
openaire   +1 more source

Fault slip and Coulomb stress variations around a pressured magma reservoir : consequences on seismicity and magma intrusion

, 2006
International audiencePressure variations in a magma reservoir may cause deformation at the surface and a redistribution of the stress in the surrounding rock.
Gargani, Julien
core   +1 more source

Strong seismic reflections indicating possible eruptible magma beneath the Tatun Volcano Group in Taiwan

Scientific Reports
The Tatun Volcano Group (TVG), located at the northern tip of Taiwan, is situated near the Taipei metropolitan area. A future eruption of the TVG could have a significant impact not only on Taipei but also on the global economy, as Taiwan produces over ...
Cheng-Horng Lin, Ya-Chuan Lai, Min-Hung Shih   +2 more
doaj   +1 more source