Results 1 to 10 of about 51,586 (326)

Age of Initial Submarine Volcanism in the Paleo-Tsushima Basin and Implications for Submarine Volcanism in the Opening Stage of the Japan Sea in Northern Kyushu

Geosciences, 2021
The Tsushima Lapilli Tuff, the thickest tuff in the Taishu Group on Tsushima Island, underwent a thermal event after deposition, and has not previously yielded a reliable age because various ages have been reported.
Takashi Ninomiya, Shoichi Shimoyama, Sho Taniguchi, Toshihiro Takahashi, Tohru Danhara, Hideki Iwano   +5 more
doaj   +1 more source

Volcanism and Deep Structures of the Moon

Space: Science & Technology, 2023
Volcanism is the most important endogenic geological process of the Moon, which is closely related to its internal structure and thermal history. Lunar volcanism is one of the most important topics for lunar science and explorations. Recent lunar orbital
Jiannan Zhao, Le Qiao, Feng Zhang, Yuefeng Yuan, Qian Huang, Jianguo Yan, Yuqi Qian, Yongliao Zou, Long Xiao   +8 more
doaj   +1 more source

Volcanism of the early formation stage of Iturup Island (Great Kurile Chain)

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2021
The article presents new petrogeochemical data on the Middle Miocene-Pliocene volcanic rocks from central part of Iturup Island (Great Kurile Chain). It is shown that volcanism of the Middle Miocene-Early Pliocene age in the central part of the Iturup ...
Федоров П.И., Цуканов Н.В., Гептнер А.Р., Петрова В.В.   +3 more
doaj   +1 more source

Density structure beneath the Rungwe volcanic province and surroundings, East Africa from shear-wave velocity perturbations constrained inversion of gravity data

Frontiers in Earth Science, 2023
Density perturbations in the subsurface are the main driver of mantle convection and can contribute to lithospheric deformation. However, in many places the density structure in the subsurface is poorly constrained.
Emmanuel A. Njinju, Max Moorkamp, D. Sarah Stamps   +2 more
doaj   +1 more source

Intensive Wildfire Associated With Volcanism Promoted the Vegetation Changeover in Southwest China During the Permian−Triassic Transition

Frontiers in Earth Science, 2021
Palaeo-wildfire, which had an important impact on the end Permian terrestrial ecosystems, became more intense in the latest Permian globally, evidenced by extensive occurrence of fossil charcoals.
Yao-feng Cai, Yao-feng Cai, Hua Zhang, Zhuo Feng, Shu-zhong Shen   +4 more
doaj   +1 more source

The Salittu Formation in southwestern Finland, part I: Structure, age and stratigraphy [PDF]

Bulletin of the Geological Society of Finland, 2016
Because of the relatively low metamorphic grade, low strain and well-preserved early structures in volcanic and volcaniclastic rocks, the Orijärvi triangle (in the center of the larger Orijärvi area) is one of the few locations in the Svecofennian orogen
M. Nironen, I. Mänttäri, M. Väisänen
doaj   +1 more source

Evolution of the volcanic mechanism in the central part of the Urumieh-Dokhtar magmatic arc

Journal of Economic Geology, 2021
Introduction Cenozoic volcanic activities in the Urumieh-Dokhtar Magmatic Arc (UDMA) have occurred in three main pulses of Eocene, upper Oligocene-Pliocene, and Pio-Quaternary (Dilek et al., 2010, Sayari, 2015).
Mohammad Sayari , Mortaza Sharifi
doaj   +1 more source

A Tale of Old and Young Volcanoes in Monts d'Ardèche UNESCO Global Geopark (South-Eastern France) [PDF]

Geoconservation Research, 2023
The Regional Natural Park of the Monts d'Ardèche, located in south-eastern France, became the Monts d’Ardèche UNESCO Global Geopark in September 2014. This territory possesses significant volcanic features dating from the Miocene to the late Pleistocene.
Jean-Paul Raynal, Emmanuelle DEFIVE, Nicolas Klee, Roxane Buso, Didier Laporte   +4 more
doaj   +1 more source

Komatiitic explosive volcanism and its tectonic setting in Finland, the Fennoscandian (Baltic) Shield [PDF]

Bulletin of the Geological Society of Finland, 1990
The variously explosive komatiitic volcanism in Finland was virtually confined to the Archaean continental segment, where it occurred in the Lapland and Kuhmo‒ Suomussalmi greenstone belts between 3.0 Ga and 2.5 Ga, in the continental borderland at 1.97 ...
M. Saverikko
doaj   +1 more source

Synthesis of global satellite observations of magmatic and volcanic deformation: implications for volcano monitoring & the lateral extent of magmatic domains

Journal of Applied Volcanology, 2018
Global Synthetic Aperture Radar (SAR) measurements made over the past decades provide insights into the lateral extent of magmatic domains, and capture volcanic process on scales useful for volcano monitoring.
S. K. Ebmeier, B. J. Andrews, M. C. Araya, D. W. D. Arnold, J. Biggs, C. Cooper, E. Cottrell, M. Furtney, J. Hickey, J. Jay, R. Lloyd, A. L. Parker, M. E. Pritchard, E. Robertson, E. Venzke, J. L. Williamson   +15 more
doaj   +1 more source