Results 71 to 80 of about 14,597 (213)

Brief and intensive volcanic emissions from Ontong Java Nui heralded Oceanic Anoxic Event 1a

open access: yesCommunications Earth & Environment
The volcanic episode that formed Ontong Java Nui (OJN) in the western Pacific ~ 120 million-year-ago is thought to have triggered Oceanic Anoxic Event (OAE) 1a, yet the cause-effect relationship remains insufficiently understood. Here, we present a Pb-Os-
Hironao Matsumoto   +10 more
doaj   +1 more source

Multi-stage volcanic island flank collapses with coeval explosive caldera-forming eruptions

open access: yesScientific Reports, 2018
Volcanic flank collapses and explosive eruptions are among the largest and most destructive processes on Earth. Events at Mount St. Helens in May 1980 demonstrated how a relatively small (300 km3), but can also occur in complex multiple stages.
James E. Hunt   +2 more
doaj   +1 more source

Martian volcanism: A review [PDF]

open access: yes
Martian volcanism is reviewed. It is emphasized that lava plains constitute the major type of effusive flow, and can be differentiated by morphologic characteristics.
Carr, Michael H.
core   +1 more source

Statistical separation of observed global and European climate data into natural and anthropogenic signals [PDF]

open access: yes, 2003
Observed global and European spatiotemporal related fields of surface air temperature, mean-sea-level pressure and precipitation are analyzed statistically with respect to their response to external forcing factors such as anthropogenic greenhouse gases,
Grieser, Jürgen   +2 more
core   +1 more source

Life on Mars? The physiological perspective

open access: yes
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source

Explosive volcanic deposits on Mars: Preliminary investigations [PDF]

open access: yes
Two investigations were undertaken to examine possible large scale explosive volcanic deposits on Mars. The first includes an analysis of Viking Infrared Thermal Mapper (IRTM) data covering the vast deposits in the Amazonis, Memnonia, and Aeolis regions.
Crown, D. A.   +2 more
core   +1 more source

Mildly explosive eruptions at Martian low-shield volcanoes

open access: yesCommunications Earth & Environment
Ongoing acquisition of Martian surface imagery constantly provides new opportunities to reveal previously undiscovered small-scale volcanic landforms, yielding critical insights into volcanic processes, and challenging existing inferences.
Bartosz Pieterek, Thomas J. Jones
doaj   +1 more source

Sedimentologic and volcanologic investigation of the deep tyrrhenian sea: preliminary result of cruise VST02

open access: yesAnnals of Geophysics, 2006
The VST02 cruise carried out in the summer of 2002 was focused at sedimentologic and volcanologic researches over selected areas of the deep portion of the Tyrrhenian sea.
A. Bertagnini   +7 more
doaj   +1 more source

100- kyr cyclicity in volcanic ash emplacement: evidence from a 1.1 Myr tephra record from the NW Pacific [PDF]

open access: yes, 2018
It is a longstanding observation that the frequency of volcanism periodically changes at times of global climate change. The existence of causal links between volcanism and Earth's climate remains highly controversial, partly because most related studies
Freundt, Armin   +6 more
core   +2 more sources

Explosive volcanism: inception, evolution and hazard / National Research Council, Geophysics Study Committee

open access: yesGeofísica Internacional, 1989
Este libro sobre "Volcanismo Explosivo" está formado por una colección de trece capítulos o artículos que, desde diferentes enfoques y disciplinas discuten uno de los fenómenos volcánicos de más alta peligrosidad.
J. Urrutia Fucugauchi   +1 more
doaj   +1 more source

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