Results 11 to 20 of about 746 (208)
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +14 more sources
Frontiers in Earth Science, 2022 Most volcanism on Earth is submarine, but volcanic gas emissions by submarine eruptions are rarely observed and hence largely unquantified. On 15 January 2022 a submarine eruption of Hunga Tonga-Hunga Ha’apai (HTHH) volcano (Tonga) generated an explosion
S. A. Carn +4 more
doaj +1 more source
Geosciences, 2022 The 1963–1967 shallow-to-emergent eruption in Iceland’s Vestmannaeyjar earned a place in the history of volcanology by creating the island of Surtsey while under close observation of volcanologist Sigurdur Thorarinsson (Sigurður Þórarinsson in Icelandic).
Andrea Verolino +4 more
doaj +1 more source
Eruption of South Sarigan Seamount, Northern Mariana Islands: Insights into Hazards from Submarine Volcanic Eruptions [PDF]
Oceanography, 2014 The eruption of South Sarigan Seamount in the southern Mariana arc in May 2010 is a reminder of how little we know about the hazards associated with submarine explosive eruptions or how to predict these types of eruptions. Monitored by local seismometers
Robert W. Embley +8 more
doaj +1 more source
Submarine morphology of the Comoros volcanic archipelago
Marine Geology, 2021 Abstract A detailed morpho-bathymetric study of the Comoros archipelago, based on mostly unpublished bathymetric data, provides a first glimpse into the submarine section of these islands. It offers a complete view of the distribution of volcanic structures around the archipelago, allowing to discuss the origin and evolution of this volcanism ...
A. Tzevahirtzian +5 more
openaire +2 more sources
Geohazards in the Western Ionian Sea: Insights from Non-Earthquake Signals Recorded by the NEMO-SN1 Seafloor Observatory [PDF]
Oceanography, 2014 Seafloor instability resulting from both tectonics and volcanism affects the Western Ionian Sea. The NEutrino Mediterranean Observatory-Submarine Network 1 (NEMO-SN1), deployed 25 km offshore eastern Sicily at 2,100 m water depth, records a variety of ...
Tiziana Sgroi +5 more
doaj +1 more source
Geophysical Research Letters, 2022 The largest submarine volcanic eruption of this century led to a dramatic phytoplankton bloom north of the island of Tongatapu, in the Kingdom of Tonga.
B. Barone +3 more
doaj +1 more source
Frontiers in Earth Science, 2018 The interaction between magmatic and tectonic processes in ocean intraplate volcanism yields insights into the ascent and transport of magmas. Many oceanic intraplate studies lack a temporal component and do not consider changes in tectonic regime and/or
René H. W. Romer +3 more
doaj +1 more source
Seabed gas emissions and submarine landslides off SW Taiwan
Terrestrial, Atmospheric and Oceanic Sciences, 2018 Methane emissions out of the seabed could seriously affect Earthâs climate and are usually associated with the dissociation of gas hydrates stored in marine sediments on the continental margins.
Shu-Kun Hsu +9 more
doaj +1 more source
Hydroacoustics detect submarine volcanism
Eos, Transactions American Geophysical Union, 1993 On January 19, an unusual clustering of impulsive hydroacoustic signals (T‐phases) was observed on recordings from SOFAR (Sound Fixing and Ranging) channel hydrophones located near the island of Oahu, Hawaii. Accompanying these randomly distributed T‐phases was a continuously elevated level of background noise. The most intense activity began around 10
Charles S. McCreery +2 more
openaire +1 more source