Results 31 to 40 of about 67,767 (127)
Fracture Structures in and Around Hakone Volcano Revealed by Dense Seismic Observations
Journal of Disaster Research, 2022 Preexisting fracture systems, including old fissures, dikes, and microfractures in the caldera, are possibly used as channels for magma and hydrothermal fluid intrusions during an eruption. To reveal such a fracture system in the Hakone volcano, we used the fuzzy c-means method to perform clustering on S-wave splitting analysis results.
Ryou Honda +3 more
openaire +1 more source
Journal of Quaternary Science, Volume 41, Issue 6, Page 972-986, August 2026.ABSTRACT The Aso‐3 tephra is one of the most significant widespread marker layers from the Middle to Late Pleistocene, generated by a large caldera‐forming eruption at the Aso volcano in Kyushu, southwestern Japan. Despite its importance, a distal co‐ignimbrite ash correlative has yet to be clearly identified, primarily because although volcanic glass ...
Toshinori Sasaki +6 more
wiley +1 more source
The Sr and Nd Isotopic Composition of Volcanic Rocks from the Hakone Volcano, Central Japan. [PDF]
, 2005 The ⁸⁷Sr/⁸⁶Sr and ¹⁴³Nd/¹⁴⁴Nd isotopic ratios of volcanic rocks from Hakone volcano range from 0.703384 to 0.703587 and 0.513018 to 0.513093, respectively. Some andesite, dacite and rhyolite of Hakone volcano show higher ⁸⁷Sr/⁸⁶Sr and ¹⁴³Nd/¹⁴⁴Nd ratios,
平原,由香 +9 more
core
Earthquake catalog of Deep low-frequency earthquake beneath the Hakone volcano, central Japan
, 2019 This is a earthquake catalog of Deep low-frequency earthquakes (DLFEs) occurred beneath the Hakone volcano, central Japan, in the period from 2000 to 2016. This catalog was obtained by using the Matched Filter method.
Yohei Yukutake (7322285)
core +1 more source
3He/4He ratio distribution in and around the Hakone volcano.
GEOCHEMICAL JOURNAL, 1992 To investigate a fine structure of the 3He/4He ratio distribution in and around a single volcano, fumarolic gases, geothermal gases and waters were collected at 13 sites within the caldera of the Hakone volcano, Japan. The 3He/4He and 4He/20Ne ratios vary from 6.7 × 10-6 to 9.6 × 10-6, and 0.85 to 26, respectively. The 3He/4He ratios, corrected for air
Sakamoto, Minoru +2 more
openaire +2 more sources
Characteristics of Deep Long‐Period Earthquakes at Alaska Volcanoes From 2005 to 2017
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.Abstract Deep long‐period earthquakes (DLPs) are often detected near volcanoes from the crust down to the upper mantle. Exhibiting coincidence with volcanic eruptions, DLPs are recognized as potential precursors to volcanic activities yet their detection remains challenging.
Zilin Song, Yen Joe Tan
wiley +1 more source
Aluminum dynamics in nitrogen‐saturated Andisols in Tokyo
Ecological Research, Volume 40, Issue 3, Page 293-302, May 2025.Atmospheric nitrogen (N) deposition in throughfall has decreased in forests around the Tokyo metropolitan area. The present study was conducted to elucidate the effect of decreased nitrogen deposition on aluminum (Al) dynamics in a forested allophanic Andisols. Mobilization of Al tended to decrease, in particular in the Japanese cedar stand.
Mitsuhisa Baba +5 more
wiley +1 more source
Sedimentary and volcano-tectonic processes in the British Paleocene Igneous Province: a review [PDF]
, 2009 Research on the British Paleocene Igneous Province (BPIP) has historically focused on the emplacement, chemistry and chronology of its elaborate central intrusive complexes and lava fields.
Bell, B.R., Holohan, E.P., Brown, D.J.
core +1 more source
Surface temperature measurements of active lava flows on Kilauea volcano, Hawai'i. [PDF]
, 2002 Systematic hand-held radiometer measurements of lava surface temperatures in active flows and tubes on Kilauea volcano, Hawai′i reveal complexities that cannot be resolved in remotely sensed data from aircraft or satellites.
Pinkerton, Harry +2 more
core +4 more sources
Journal of Geophysical Research: Solid Earth, Volume 129, Issue 2, February 2024.Abstract To monitor the volcanoes at a high spatiotemporal resolution, we introduce the singular value decomposition‐based Wiener filter and the three‐component waveforms in ambient noise velocity monitoring. The continuous ambient noise data from 63 stations around Mt. Fuji and Mt.
Y. Kakiuchi, H. Nimiya, T. Tsuji
wiley +1 more source