Results 11 to 20 of about 14,200 (125)

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

open access: yesGeosciences, 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   +5 more
doaj   +1 more source

Volcanism and Deep Structures of the Moon

open access: yesSpace: 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   +8 more
doaj   +1 more source

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

open access: yesВестник 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.   +3 more
doaj   +1 more source

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

open access: yesBulletin 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

Upper cretaceous magmatic suites of the Timok magmatic complex [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2010
The Upper Cretaceous Timok Magmatic Complex (TMC) developed on a continental crust composed of different types of Proterozoic to Lower Cretaceous rocks. The TMC consists of the magmatic suites: Timok andesite (AT) - Turonian-Santonian, Metovnica
Banješević Miodrag
doaj   +1 more source

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

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

open access: yesGeoconservation 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   +4 more
doaj   +1 more source

The copper deposits of Bor, eastern Serbia: Geology and origin of the deposits [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2014
The copper deposits of Bor, volcanic activities in the area and relationship of minerals through time are presented by formations within the Cenomanian-Turonian range.
Antonijević Ivan, Mijatović Predrag
doaj   +1 more source

Traces of explosive volcanic eruptions in the Upper Ordovician of the Siberian Platform [PDF]

open access: yesEstonian Journal of Earth Sciences, 2014
Ordovician K-bentonite beds have a long history of investigation all around the world. They have been reported from Gondwana, the Argentine Precordillera, the Yangtze Platform, Laurentia, Baltica, and numerous terrains between Gondwana and Baltica, which
Warren D. Huff   +4 more
doaj   +1 more source

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

open access: yesJournal 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

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