Results 81 to 90 of about 14,597 (213)
Revised calendar date for the Taupo eruption derived by ¹⁴C wiggle-matching using a New Zealand kauri ¹⁴C calibration data set [PDF]
Taupo volcano in central North Island, New Zealand, is the most frequently active and productive rhyolite volcano on Earth. Its latest explosive activity about 1800 years ago generated the spectacular Taupo eruption, the most violent eruption known in ...
Boswijk, Gretel +4 more
core +2 more sources
Signatures of widespread Surtseyan volcanism at the northern Reykjanes ridge
Submarine explosive volcanism shapes seafloor morphology, impacts marine ecosystems, and poses risks to maritime infrastructure and coastal communities. However, its occurrences and drivers remain poorly constrained, especially for basaltic systems. Here
Jonas Preine +18 more
doaj +1 more source
Potential atmospheric impact of the Toba Mega‐Eruption ∼71,000 years ago [PDF]
An ∼6‐year long period of volcanic sulfate recorded in the GISP2 ice core about 71,100 ± 5000 years ago may provide detailed information on the atmospheric and climatic impact of the Toba mega‐eruption. Deposition of these aerosols occur at the beginning
Mayewski, Paul A. +5 more
core +3 more sources
Loess Studies in Aotearoa New Zealand
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway +4 more
wiley +1 more source
Subglacial explosive volcanism in the Ross Sea of Antarctica
The interaction between magmatic systems and ice sheet dynamics in polar ocean basins is a critical, yet poorly known Earth system process with implications for cryosphere evolution and planetary analogs.
Masako Tominaga +13 more
doaj +1 more source
In the Upper Burdigalian-Lower Langhian sediments of the Venetian molassic basin two volcaniclastic layers are clearly recognizable, respectively within the Globigerinoides trilobus and Praeorbulina glomerosa zones of Bizon & Bizon (1972). The chemical
PAOLO GRANDESSO, CRISTINA STEFANI
doaj +1 more source
Maars to calderas. End-members on a spectrum of explosive volcanic depressions [PDF]
We discuss maar-diatremes and calderas as end-members on a spectrum of negative volcanic landforms (depressions) produced by explosive eruptions (note—we focus on calderas formed during explosive eruptions, recognizing that some caldera types are not ...
Palladino, Danilo Mauro +3 more
core +1 more source
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley +1 more source
Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge. [PDF]
Koulakov I +5 more
europepmc +1 more source
Terrestrial Analogs to Titan for Geophysical Research
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon +21 more
wiley +1 more source

