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Showing 20 of 2,514 academic articles

Rock Magnetism and Magnetic Fabric Study of the Icelandite and Rhyodacite Long Volcanic Sequence at Mauna Kuwale, Wai’anae Volcano, Oahu, Hawaii, USA

Emilio Herrero-Bervera, Mario Moreira • Geosciences (2023)

In order to understand further the emplacement (i.e., volcanic growth) of 22 Icelandite and 3 Rhyodacite cooling units in one of the long volcanic sequences known as Mauna Kuwale of the Wai’anae volcano (ca. 3.3 Ma), Oahu Hawaii we have con...

DOAJ Open Access (DOAJ) DOI: 10.3390/geosciences13040114

New palaeomagnetic data for Palaeoproterozoic AMCG complexes of the Ukrainian Shield

V.G. Bakhmutov, O.V. Mytrokhyn, I.B. Poliachenko, S.I. Cherkes • Геофизический журнал (2023)

A palaeomagnetic study of rocks for two Palaeoproterozoic anorthosite-mangerite-charnockite-granite (AMCG) complexes in the Ukrainian Shield was done to put additional constraints on the interpretation of palaeogeography of Fennoscandia and...

DOAJ Open Access (DOAJ) DOI: 10.24028/gj.v45i4.286283

A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region

L. C. A. Resende, L. C. A. Resende, Y. Zhu, C. M. Denardini et al. • Annales Geophysicae (2022)

This work presents an analysis of the ionospheric responses to the solar eclipse that occurred on 14 December 2020 over the Brazilian sector. This event partially covers the south of Brazil, providing an excellent opportunity to study the m...

DOAJ Open Access (DOAJ) DOI: 10.5194/angeo-40-191-2022

Estimation of Seismic Ground Motions and Attendant Potential Human Fatalities from Scenario Earthquakes on the Chishan Fault in Southern Taiwan

Kun-Sung Liu • Terrestrial, Atmospheric and Oceanic Sciences (2017)

The purpose of this study is to estimate maximum ground motions in southern Taiwan as well as to assess potential human fatalities from scenario earthquakes on the Chishan active faults in this area. The resultant Shake Map patterns of maxi...

DOAJ Open Access (DOAJ) DOI: 10.3319/TAO.2017.01.06.01

Interplanetary external driven quasidynamo as the origin of geomagnetic jerks correlated with length of day and gravity anomaly

Mohsen LUTEPHY • Contributions to Geophysics and Geodesy (2018)

We report phenomenological inevitable correlation between the Sun’s magnetic field oscillation through the Earth and the Jupiter, with sinusoidal geomagnetic jerks observed at the Earth, additionally aligned with the gravity and length of d...

DOAJ Open Access (DOAJ) DOI: 10.2478/congeo-2018-0002

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

Folco Pingue, Milena Bottiglieri, Cataldo Godano, Francesco Obrizzo et al. • Annals of Geophysics (2013)

Since the early ’70s vertical ground movements at Mount Vesuvius area have been investigated and monitored by the Osservatorio Vesuviano (Isti-tuto Nazionale di Geofisica Vulcanologia - Osservatorio Vesuviano since 2001). This monitoring be...

DOAJ Open Access (DOAJ) DOI: 10.4401/ag-6457

Vulsino volcanic aquifer in Umbria Region : Hydrogeological survey for the characterization of the presence of arsenic and aluminium and the correct use of groundwater

Stefano Fratini, Fabrizio Maria Francesconi, Roberto Checcucci, Francesco Frondini et al. • Acque Sotterranee (2013)

In December 2009 and the first months of 2010, a large water crisis took place in the Orvieto area, because of sudden high concentration of aluminum (Al) in the groundwater of the vulsino aquifer. This represents a supply for Orvieto’s popu...

DOAJ Open Access (DOAJ) DOI: 10.7343/as-048-13-0075

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

Akono Daniel Florent, Bokanda Ekoko Eric, Bisse Salomon Bertrant, Belinga Belinga Cedric et al. • Heliyon (2023)

The Ebolowa Municipal Lake (EML) (South Cameroon) in order to identify the early diagenesis processes taking place in the lake and the factors influencing them. To this end, 21 samples were collected. In situ, hydrogen potential, redox pote...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2023.e17617

DESENVOLVIMENTO DE UMA TIPOLOGIA HIDROGEOMORFOLÓGICA DE NASCENTES BASEADA EM ESTATÍSTICA NEBULOSA MULTIVARIADA

Miguel Fernandes Felippe, Antônio Pereira Magalhães Junior • Revista Brasileira de Geomorfologia (2014)

As nascentes de cursos d’água são sistemas hidrogeomorfológicos complexos, caracterizados por uma grande variabilidade de seus elementos estruturantes. Esta heterogeneidade ainda pouco conhecida cria dificuldades para os processos de gestão...

DOAJ Open Access (DOAJ) DOI: 10.20502/rbg.v15i3.463

The cause of high intensity of seismicity in Ukraine

O. Chalyi, M. Diaconescu, I. Gurova, Y. Lisovyi et al. • Вісник Київського національного університету імені Тараса Шевченка. Серія Геологія (2018)

In the article, the earthquake near Sumy is considered in detail. According to the authors, this earthquake occurred under the influence of several stress regimes. At the regional level: it is related to the transfer of stresses from the Vr...

DOAJ Open Access (DOAJ) DOI: 10.17721/1728-2713.83.05

Structural Properties of Syngenetic Ice-Rich Permafrost, as Revealed by Archaeological Investigation of the Yana Site Complex (Arctic East Siberia, Russia): Implications for Quaternary Science

Vladimir V. Pitulko, Elena Y. Pavlova • Frontiers in Earth Science (2022)

Ice-rich syncryogenic (termed “Ice Complex”) deposits are common in northern East Siberia and constitute the most important feature of the Quaternary geology of the region. The Ice Complex formed throughout the Late Pleistocene and not only...

DOAJ Open Access (DOAJ) DOI: 10.3389/feart.2021.744775

Metallogenic potential and prospecting of orogenic gold deposits in the Shuihouling area of the Dabie Orogenic Belt: A geochemical evidence from stream sediment anomalies

Xiandong Luo, Lei Chen, Jinlai Tang, Xiaoyong Yang • Solid Earth Sciences (2026)

The Shuihouling ductile shear zone, located in the core of the Dabie Orogenic Belt spanning Anhui and Hubei provinces, is a key structural unit with notable mineral potential. Situated within the Wudang-Tongbai-Dabie Mo-REE-Au-Ag-Pb-Zn poly...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.sesci.2025.100278

Aplicação da análise da fiabilidade e do dimensionamento probabilístico ao reforço de taludes rochosos

Renato Pereira, José Muralha, Luís Lamas • Geotecnia (2026)

Este artigo explora a aplicação de métodos probabilísticos na análise da fiabilidade e no dimensionamento do reforço de taludes rochosos sujeitos a mecanismos de rotura planar. O estudo incide no caso de um maciço rochoso intersetado por um...

DOAJ Open Access (DOAJ) DOI: 10.14195/2184-8394_166_1

Nature of Paleozoic Basement of the Catalan Coastal Ranges (Spain) and Tectonic Setting of the Priorat DOQ Wine Terroir: Evidence from Volcanic and Sedimentary Rocks

Pavel Kepezhinskas, Nikolai Berdnikov, Nikita Kepezhinskas, Natalia Konovalova et al. • Geosciences (2023)

The Paleozoic volcano-sedimentary rocks within the structural basement of the horst-and-graben system of the Catalan Coastal Ranges (CCR) are composed of black shale, volcaniclastic sediments, lava flows, sills and lithocrystalloclastic tuf...

DOAJ Open Access (DOAJ) DOI: 10.3390/geosciences13020031

Le recyclage des coquillages fossiles dans l’espace sénégambien : histoire et archéologie

Michel Waly DIOUF • Pensées Genre, Penser Autrement (2024)

Cet article examine la réutilisation des coquillages fossiles et décrit en même temps les anomalies ou les déformations observées sur les individus. La démarche adoptée repose en effet sur une combinaison de plusieurs activités allant de la...

DOAJ Open Access (DOAJ) DOI: https://doi.org/10.60842/rass-pgpa.05.vol.4.n2.2024

Effects of match period and playing position on the individual and collective dynamics in professional soccer: a case study

Gibson Moreira Praça, André Gustavo Pereira de Andrade, Sarah da Glória Teles Bredt, Pedro Emilio Drumond Moreira et al. • Revista Brasileira de Cineantropometria e Desempenho Humano (2020)

This study aimed to compare the width, the length, the length per width ratio, and the stretch index between the first and the second halves in official soccer matches, and to compare the spatial exploration index between players from diffe...

DOAJ Open Access (DOAJ)