Results 21 to 30 of about 10,912 (200)

Strong geochemical anomalies following active submarine eruption offshore Mayotte [PDF]

Chemical Geology, 2023
Submarine volcanic activity releases large amounts of gases and metals in the water column, affecting biogeochemical cycles and ecosystems at a regional and local scale. In 2018, Fani Maoré submarine volcano erupted 50 km offshore Mayotte Island (Comoros Archipelago, Indian Ocean).
Mastin, Manon, Cathalot, Cecile, Fandino, Olivia, Giunta, Thomas, Donval, Jean-Pierre, Guyader, Vivien, Germain, Yoan, Scalabrin, Carla, Dehez, Sébastien, Jouenne, Stéphane, Gaucher, Eric C., Rouxel, Olivier, Rinnert, Emmanuel   +12 more
openaire   +3 more sources

The Volcanic Relief within the Kos-Nisyros-Tilos Tectonic Graben at the Eastern Edge of the Aegean Volcanic Arc, Greece and Geohazard Implications

Geosciences, 2021
The active Kos-Nisyros-Tilos volcanic field is located in the eastern sector of the Aegean Volcanic Arc resulting from the subduction of the African plate beneath the Aegean plate. The volcanic activity is developed since Middle Pleistocene and it occurs
Paraskevi Nomikou, Pavlos Krassakis, Stavroula Kazana, Dimitrios Papanikolaou, Nikolaos Koukouzas   +4 more
doaj   +1 more source

An earthquake-triggered submarine mass failure mechanism for the 1994 Mindoro tsunami in the Philippines: Constraints from numerical modeling and submarine geomorphology

Frontiers in Earth Science, 2022
Tsunamis have been known to result from a wide range of phenomena, such as earthquakes, volcanic eruptions, submarine mass failures, and meteorite impacts.
Alec Benjamin G. Ramirez, Noelynna T. Ramos, Lyndon P. Nawanao, Robelyn Z. Mangahas-Flores, Ishmael C. Narag, Toshitaka Baba, Naotaka Chikasada, Kenji Satake   +7 more
doaj   +1 more source

Defining Pre-eruptive Conditions of the Havre 2012 Submarine Rhyolite Eruption Using Crystal Archives [PDF]

Frontiers in Earth Science, 2020
The 2012 Havre eruption evacuated a crystal-poor rhyolite (∼3–7% crystals) producing a volumetrically dominant (∼1.4 km3) pumice raft, as well as seafloor giant pumice (5–8%) and lavas (12–14%) at the vent (∼0.1 km3), both of which have subtly higher phenocryst contents. For crystal-poor rhyolites like the Havre pumice, it can often remain ambiguous as
Knafelc, Joseph, Bryan, Scott, Gust, David, Cathey, Henrietta   +3 more
openaire   +3 more sources

Volcanic Eruptions in the Deep Sea [PDF]

Oceanography, 2012
Volcanic eruptions are important events in Earth's cycle of magma generation and crustal construction. Over durations of hours to years, eruptions produce new deposits of lava and/or fragmentary ejecta, transfer heat and magmatic volatiles from Earth's ...
Kenneth H. Rubin, S. Adam Soule, William W. Chadwick Jr., Daniel J. Fornari, David A. Clague, Robert W. Embley, Edward T. Baker, Michael R. Perfit, David W. Caress, Robert P. Dziak   +9 more
doaj  

Hydrothermal Discharge During Submarine Eruptions: The Importance of Detection, Response, and New Technology [PDF]

Oceanography, 2012
Submarine volcanic eruptions and intrusions construct new oceanic crust and build long chains of volcanic islands and vast submarine plateaus. Magmatic events are a primary agent for the transfer of heat, chemicals, and even microbes from the crust to ...
Edward T. Baker, William W. Chadwick Jr., James P. Cowen, Robert P. Dziak, Kenneth H. Rubin, Daniel J. Fornari   +5 more
doaj  

Submarine lava deltas of the 2018 eruption of Kīlauea volcano [PDF]

Bulletin of Volcanology, 2021
AbstractHawaiian and other ocean island lava flows that reach the coastline can deposit significant volumes of lava in submarine deltas. The catastrophic collapse of these deltas represents one of the most significant, but least predictable, volcanic hazards at ocean islands.
S. Adam Soule, Michael Zoeller, Carolyn Parcheta   +2 more
openaire   +2 more sources

Geological constraints for a conceptual evolutionary model of the slope deformations affecting Mt. Nuovo at Ischia (Italy) [PDF]

, 2015
ischia island was the scenario of several Holocene slope in- stability events occurred at different scales, from shallow mass movements, triggered by meteo-climatic forcing, up to massive rock slope failures such as large debris avalanches these last ...
DELLA SETA, Marta, ESPOSITO, CARLO, MARMONI, GIANMARCO, MARTINO, Salvatore, PACIELLO, ANTONELLA, PERINELLI, cristina, SOTTILI, Gianluca   +6 more
core   +1 more source

Recent Eruptions Between 2012 and 2018 Discovered at West Mata Submarine Volcano (NE Lau Basin, SW Pacific) and Characterized by New Ship, AUV, and ROV Data

Frontiers in Marine Science, 2019
West Mata is a submarine volcano located in the SW Pacific Ocean between Fiji and Samoa in the NE Lau Basin. West Mata was discovered to be actively erupting at its summit in September 2008 and May 2009. Water-column chemistry and hydrophone data suggest
William W. Chadwick, Kenneth H. Rubin, Susan G. Merle, Andra M. Bobbitt, Tom Kwasnitschka, Robert W. Embley   +5 more
doaj   +1 more source

Submarine Eruption of El Hierro, Geotourism and Geoparks

, 2022
AbstractThe year 2011 remained in the memory of the residents of the island of El Hierro (Canary Island, Spain) because of the volcanic episode that originated in its vicinity. From the beginning of the first precursory signs in July 2011, the island’s inhabitants reminded that the islands’ geological origin is volcanic and, what are the consequent ...
William Hernández Ramos, Victor Ortega, Monika Przeor, Nemesio M. Pérez, Pedro A. Hernández   +4 more
openaire   +1 more source