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234 result(s) for '"Express Letter"' within Earth, Planets and Space

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  1. Chemical stratigraphy is useful for dating deep-sea sediments, which sometimes lack radiometric or biostratigraphic constraints. Oxic pelagic clay contains Fe–Mn oxyhydroxides that can retain seawater 187Os/188Os...

    Authors: Yoichi Usui and Toshitsugu Yamazaki
    Citation: Earth, Planets and Space 2021 73:2
  2. We conducted magnetotelluric measurements to investigate a large serpentinite complex in the northern Kamuikotan Zone that intruded a Cretaceous–Paleocene forearc sedimentary sequence. The resistivity model we...

    Authors: Hiroshi Ichihara, Toru Mogi, Toshihiro Uchida, Hideyuki Satoh, Yusuke Yamaya, Masakazu Fujii, Shusaku Yamazaki, Kenji Okazaki and Noriko Tada
    Citation: Earth, Planets and Space 2021 73:154
  3. Crustal earthquake ruptures tend to initiate near fluid-rich zones. However, it is relatively unknown whether fluid-rich zones can further promote or arrest these ruptures. We image the electrical resistivity ...

    Authors: Koki Aizawa, Shinichi Takakura, Hisafumi Asaue, Katsuaki Koike, Ryokei Yoshimura, Ken’ichi Yamazaki, Shintaro Komatsu, Mitsuru Utsugi, Hiroyuki Inoue, Kaori Tsukamoto, Makoto Uyeshima, Takao Koyama, Wataru Kanda, Tohru Yoshinaga, Nobuo Matsushima, Kazunari Uchida…
    Citation: Earth, Planets and Space 2021 73:12
  4. Coronal mass ejections (CMEs) cause various disturbances of the space environment; therefore, forecasting their arrival time is very important. However, forecasting accuracy is hindered by limited CME observat...

    Authors: Kazumasa Iwai, Daikou Shiota, Munetoshi Tokumaru, Ken’ichi Fujiki, Mitsue Den and Yûki Kubo
    Citation: Earth, Planets and Space 2021 73:9
  5. We present a novel method for coastal tsunami prediction utilizing a denoising autoencoder (DAE) model, one of the deep learning algorithms. Our study focuses on the Tohoku coast, Japan, where dense offshore b...

    Authors: Yuchen Wang, Kentaro Imai, Takuya Miyashita, Keisuke Ariyoshi, Narumi Takahashi and Kenji Satake
    Citation: Earth, Planets and Space 2023 75:154
  6. The influence of composition-dependent thermal conductivity and heterogeneous internal heating of primordial dense material on the long-term evolution of primordial reservoirs in the lower mantle of the Earth ...

    Authors: Yang Li, Frédéric Deschamps, Zhidong Shi, Joshua M. Guerrero, Wen-Pin Hsieh, Liang Zhao and Paul J. Tackley
    Citation: Earth, Planets and Space 2022 74:46
  7. Vulcanian activity is one of the most common eruption styles of arc andesitic volcanism on Earth. It ejects and deposits volcanic bombs around the source crater. Although paleomagnetic studies of volcanic bomb...

    Authors: Takeshi Hasegawa, Bunta Kikuchi, Shohei Shibata, Yuhji Yamamoto, Takumi Imura, Masao Ban, Kae Tsunematsu, Chie Kusu, Makoto Okada and Tsukasa Ohba
    Citation: Earth, Planets and Space 2023 75:172

    The Correction to this article has been published in Earth, Planets and Space 2023 75:180

  8. Oxygen is a potential biosignature for terrestrial Earth-like planets. The primary source of oxygen on Earth is oxygenic photosynthesis, which may be limited by the supply of riverine phosphorus. Therefore, ph...

    Authors: Yasuto Watanabe and Eiichi Tajika
    Citation: Earth, Planets and Space 2021 73:188
  9. In gradual Solar Energetic Particle (SEP) events, shock waves driven by coronal mass ejections (CMEs) play a major role in accelerating particles, and the energetic particle flux enhances substantially when th...

    Authors: Mitsuo Oka, Takahiro Obara, Nariaki V. Nitta, Seiji Yashiro, Daikou Shiota and Kiyoshi Ichimoto
    Citation: Earth, Planets and Space 2021 73:31
  10. Early evolution of Solar System small bodies proceeded through interactions of mineral and water. Melting of water ice accreted with mineral particles to the parent body results in the formation of secondary m...

    Authors: Naoki Hirakawa, Yoko Kebukawa, Yoshihiro Furukawa, Masashi Kondo, Hideyuki Nakano and Kensei Kobayashi
    Citation: Earth, Planets and Space 2021 73:16
  11. Kusatsu-Shirane volcano is one of the active volcanoes in Japan. Phreatic explosions occurred in Mt. Shirane in 1983 and most recently, in 2018, in Mt. Motoshirane. Information on the subsurface structure is c...

    Authors: Takao Koyama, Wataru Kanda, Mitsuru Utsugi, Takayuki Kaneko, Takao Ohminato, Atsushi Watanabe, Hiroshi Tsuji, Taro Nishimoto, Alexey Kuvshinov and Yoshiaki Honda
    Citation: Earth, Planets and Space 2021 73:139
  12. The devastation caused by the January 2022 eruption of Hunga Tonga-Hunga Ha’apai volcano (HTHH) in the Tongan archipelago reminded us of the importance of monitoring shallow-sea volcanic activity. Seismic obse...

    Authors: Masaru Nakano, Mie Ichihara, Daisuke Suetsugu, Takao Ohminato, Shigeaki Ono, Rennie Vaiomounga, Taaniela Kula and Masanao Shinohara
    Citation: Earth, Planets and Space 2024 76:25
  13. Dynamic earthquake rupture causes mass redistribution around the fault, and the emitted propagating seismic waves are accompanied by bulk density perturbations. Both processes cause transient gravity changes p...

    Authors: Masaya Kimura, Nobuki Kame, Shingo Watada, Akito Araya, Takashi Kunugi and Rongjiang Wang
    Citation: Earth, Planets and Space 2021 73:223
  14. The importance of the investigation of magnetic superstorms is not limited to academic interest, because these superstorms can cause catastrophic impact on the modern civilisation due to our increasing depende...

    Authors: Hisashi Hayakawa, José R. Ribeiro, Yusuke Ebihara, Ana P. Correia and Mitsuru Sôma
    Citation: Earth, Planets and Space 2020 72:122
  15. Many active volcanoes and various types of seismic activities exist in the southern part of the Northeast Japan subduction zone. One of the geologically most interesting features in this area is the sequential...

    Authors: Dieno Diba, Makoto Uyeshima, Masahiro Ichiki, Shin’ya Sakanaka, Makoto Tamura, Yiren Yuan, Marceau Gresse, Yusuke Yamaya and Yoshiya Usui
    Citation: Earth, Planets and Space 2023 75:146
  16. Atomic oxygen (O) and atomic hydrogen (H) in the mesopause region are critical species, governing chemistry, airglow, and energy budget. However, they cannot be directly measured by satellite remote sensing te...

    Authors: Mikhail Yu. Kulikov, Mikhail V. Belikovich, Mykhaylo Grygalashvyly, Gerd R. Sonnemann and Alexander M. Feigin
    Citation: Earth, Planets and Space 2022 74:44
  17. Newly analysed titanomagnetite–ilmenite (Tim–Ilm) intergrowths from Martian nakhlite meteorite Northwest Africa (NWA) 5790 yielded crystallisation temperature up to 1032 °C and oxygen fugacity (fO2) up to ΔQFM + ...

    Authors: Zilong Wang, Wei Tian and Yankun Di
    Citation: Earth, Planets and Space 2021 73:164
  18. We investigated temporal changes in the rock-magnetic properties of volcanic ash ejected from the Aso Nakadake volcano during a sequence of ash eruptions from 2019 to 2020. For 39 volcanic ash samples, magneti...

    Authors: Chisato Anai, Takahiro Ohkura, Shin Yoshikawa and Nobutatsu Mochizuki
    Citation: Earth, Planets and Space 2023 75:24
  19. We statistically investigate the spectral scalings of magnetic fluctuations at the upstream and downstream regions near the Venusian bow shock and perform a differentiation by shock geometry. Based on the Venu...

    Authors: S. D. Xiao, M. Y. Wu, G. Q. Wang, Y. Q. Chen and T. L. Zhang
    Citation: Earth, Planets and Space 2021 73:13
  20. Prediction of ash concentrations in volcanic ash clouds for the Kirishima-Shinmoedake eruption on April 4th, 2018 is performed on the basis of an atmospheric transport model and the Japanese meteorological sat...

    Authors: Kensuke Ishii, Masahiro Hayashi, Hiroshi Ishimoto and Toshiki Shimbori
    Citation: Earth, Planets and Space 2023 75:37
  21. Slow earthquakes have gained importance due to their proximity to the focal regions of megathrust earthquakes. Among slow earthquakes, tectonic tremors have the highest dominant frequency and are thus best res...

    Authors: Masashi Ogiso and Koji Tamaribuchi
    Citation: Earth, Planets and Space 2022 74:49
  22. The effusion rate of lava is one of the most important eruption parameters, as it is closely related to the migration process of magma underground and on the surface, such as changes in lava flow direction or ...

    Authors: Takayuki Kaneko, Atsushi Yasuda and Toshitsugu Fujii
    Citation: Earth, Planets and Space 2021 73:37
  23. Geo- and thermochronological methods were applied to diorites from the Cordillera Central, Luzon, Philippines to understand their emplacement and exhumation history in the island arc mountains. Five zircon U–P...

    Authors: Toru Nakajima, Shigeru Sueoka, Mitsuhiro Nagata, Barry P. Kohn, Noelynna T. Ramos, Hiroyuki Tsutsumi and Takahiro Tagami
    Citation: Earth, Planets and Space 2023 75:176
  24. We investigated changes in the b value of the Gutenberg–Richter’s law in and around the focal areas of earthquakes on March 20 and on May 1, 2021, with magnitude (M) 6.9 and 6.8, respectively, which occurred off ...

    Authors: K. Z. Nanjo and A. Yoshida
    Citation: Earth, Planets and Space 2021 73:176
  25. The mapping of available water–ice is a crucial step in the lunar exploration missions. Ground penetrating radars have the potential to map the subsurface structure and the existence of water–ice in terms of t...

    Authors: M. Kobayashi, H. Miyamoto, B. D. Pál, T. Niihara and T. Takemura
    Citation: Earth, Planets and Space 2023 75:8
  26. We estimate the hypocenter locations and the centroid moment tensor solutions of the shallow very-low-frequency earthquake (sVLFE) activity that occurred in the Kumano-nada region of the Nankai Trough megathru...

    Authors: Yojiro Yamamoto, Keisuke Ariyoshi, Shuichiro Yada, Masaru Nakano and Takane Hori
    Citation: Earth, Planets and Space 2022 74:14
  27. Improving the ability to detect and characterize long-duration volcanic tremor is crucial to understand the long-term dynamics and unrest of volcanic systems. We have applied data reduction methods (permutatio...

    Authors: Ivan Melchor, Javier Almendros, Roberto Carniel, Kostas I. Konstantinou, Marcia Hantusch and Alberto Caselli
    Citation: Earth, Planets and Space 2020 72:134
  28. According to a 2013 report by the Earthquake Research Committee of Japan, it was estimated that the probability of the occurrence of the next Nankai earthquake within the next three decades is 70–80%. Therefor...

    Authors: Shinzaburo Ozawa, Hiroshi Muneakane and Hisashi Suito
    Citation: Earth, Planets and Space 2024 76:23
  29. Coeruptive deformation helps to interpret physical processes associated with volcanic eruptions. Because phreatic eruptions cause small, localized coeruptive deformation, we sometimes fail to identify plausibl...

    Authors: Yuji Himematsu, Taku Ozawa and Yosuke Aoki
    Citation: Earth, Planets and Space 2020 72:116
  30. As megathrust earthquakes often have source areas in offshore regions, offshore seismic observations are important. However, the detection capability and resolution of offshore earthquake locations are low owi...

    Authors: Satoru Baba, Eiichiro Araki, Takashi Yokobiki, Kei Kawamata, Keisuke Uchiyama and Takuji Yoshizuka
    Citation: Earth, Planets and Space 2024 76:28
  31. Slow slip and tremor (SST) downdip of the seismogenic zones may trigger megathrust earthquakes by frequently transferring stress to seismogenic zones. Geodetic observations have suggested that the recurrence i...

    Authors: Naoki Nishiyama, Kohtaro Ujiie and Masayuki Kano
    Citation: Earth, Planets and Space 2021 73:126

    The Comment to this article has been published in Earth, Planets and Space 2023 75:2

  32. Wave–particle interactions are fundamental processes in space plasma, and some plasma waves, including electrostatic solitary waves (ESWs), are recognised as broadband noises (BBNs) in the electric field spect...

    Authors: Masaki N. Nishino, Yoshiya Kasahara, Yuki Harada, Yoshifumi Saito, Hideo Tsunakawa, Atsushi Kumamoto, Shoichiro Yokota, Futoshi Takahashi, Masaki Matsushima, Hidetoshi Shibuya, Hisayoshi Shimizu, Yukinaga Miyashita, Yoshitaka Goto and Takayuki Ono
    Citation: Earth, Planets and Space 2022 74:9
  33. The Hokkaido Eastern Iburi earthquake (MJMA = 6.7) occurred on September 6, 2018, in the Hokkaido corner region where the Kurile and northeastern Japan island arcs meet. We relocated aftershocks of this intraplat...

    Authors: Kei Katsumata, Masayoshi Ichiyanagi, Mako Ohzono, Hiroshi Aoyama, Ryo Tanaka, Masamitsu Takada, Teruhiro Yamaguchi, Kazumi Okada, Hiroaki Takahashi, Shin’ichi Sakai, Satoshi Matsumoto, Tomomi Okada, Toru Matsuzawa, Shuichiro Hirano, Toshiko Terakawa, Shinichiro Horikawa…
    Citation: Earth, Planets and Space 2019 71:53
  34. Nishinoshima in Izu-Ogasawara started erupting in November 2013, and the island size increased. Continuous monitoring is important for study of the formation process. Since it is difficult to make continuous o...

    Authors: Masanao Shinohara, Mie Ichihara, Shin’ichi Sakai, Tomoaki Yamada, Minoru Takeo, Hiroko Sugioka, Yutaka Nagaoka, Akimichi Takagi, Taisei Morishita, Tomozo Ono and Azusa Nishizawa
    Citation: Earth, Planets and Space 2017 69:159
  35. Gravity gradient tensor analysis has been a powerful tool for investigating subsurface structures and recently its application to a two-dimensional fault structure has been developed. To elucidate the faulting...

    Authors: Yoshihiro Hiramatsu, Akihiro Sawada, Wataru Kobayashi, Satoshi Ishida and Masaaki Hamada
    Citation: Earth, Planets and Space 2019 71:107
  36. Seismic swarm areas below the southeast flank of Ontake volcano, central Japan, provide an important opportunity to study interactions between seismicity, volcanic processes and crustal fluid. On June 25, 2017...

    Authors: Hiroshi Ichihara, Junna Kanehiro, Toru Mogi, Koshun Yamaoka, Noriko Tada, Edward Alan Bertrand and Mamoru Adachi
    Citation: Earth, Planets and Space 2018 70:182
  37. We measured the abundances of Sr and rare earth elements (REEs) in the matrices of five CV3 carbonaceous chondrites: Meteorite Hills (MET) 00430, MET 01070, La Paz ice field (LAP) 02206, Asuka (A) 881317 and R...

    Authors: Kaori Jogo, Motoo Ito, Tomoki Nakamura, Sachio Kobayashi and Jong Ik Lee
    Citation: Earth, Planets and Space 2018 70:37

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