Results 91 to 100 of about 1,408 (194)

Spotlight 7: Graveyard Seamounts [PDF]

Oceanography, 2010
The “Graveyard seamounts” comprise a complex of 28 small volcanic edifices covering about 140 km2 on the northern flank of the Chatham Rise, an oceanic plateau that extends several hundred kilometers east of New Zealand.
Malcolm R. Clark,, Ashley A. Rowden, Ian Wright, Mireille Consalvey   +3 more
doaj  

The origin of diverse intraplate volcanism in the Central and Equatorial Atlantic Ocean [PDF]

, 2019
Despite decades of research, the origin of oceanic intraplate volcanism and the location of its magma source(s) are still a matter of debate. Intraplate volcanism was originally tightly connected with the mantle plume concept (e.g.
Long, Xiaojun
core  

Melt inclusions reveal massive carbon dioxide emissions from continental intraplate volcanism

Communications Earth & Environment
The quantities of carbon dioxide (CO2) carried by magmas affect the style of volcanic eruptions and the evolution of Earth’s climate over geological time.
Roxane Buso, Didier Laporte, Federica Schiavi, Nicolas Cluzel   +3 more
doaj   +1 more source

Short-lived and discontinuous intraplate volcanism in the South Pacific: Hot spots or extensional volcanism?

South Pacific intraplate volcanoes have been active since the Early Cretaceous. Their HIMU-EMI-EMII mantle sources can be traced back into the West Pacific Seamount Province (WPSP) using plate tectonic reconstructions, implying that these distinctive ...
Staudigel, Hubert, Pringle, Malcolm S., Koppers, Anthony A. P., Wijbrans, Jan R.   +3 more
core  

The origin of intraplate volcanism on the New Zealand microcontinent Zealandia [PDF]

, 2008
The origin of intraplate volcanism has been predominately attributed to a stationary thermal anomaly beneath the lithosphere (mantle plume) or to continental rifting. Both mechanisms generally result in voluminous volcanic activity.
Timm, Christian
core  

Tomographic consistency in imaging lower-mantle plumes and their link to European Cenozoic Rift Volcanism

Earth and Planetary Physics
A wide northeast-trending belt of intraplate alkaline volcanism, exhibiting similar geochemical characteristics, stretches from the Eastern Atlantic Ocean to the Cenozoic rift system in Europe.
Chiara Civiero, Angelo De Min
doaj   +1 more source

Basaltic Explosive Volcanism in a tuff-dominated Intraplate Setting, Sarmiento Formation (Middle Eocene- lower Miocene), Patagonia Argentina

Latin American Journal of Sedimentology and Basin Analysis
The Sarmiento Formation (middle Eocene to early Miocene) represents the distal record of the activity of the Andean volcanic arc in central Patagonia, mainly dominated by accumulation and reworking of fine ash in a low-gradient continental setting ...
José Matildo Paredes, Ferrán Colombo, Nicolás Foix, José Oscar Allard, Adriana Nillni, Mariana Allo   +5 more
doaj  

Intraplate volcanism in eastern Australia and New Zealand [PDF]

Physics of the Earth and Planetary Interiors, 1991
  +4 more sources

Amphiboles from suprasubduction and intraplate lithospheric mantle

, 2007
Geochemical features of amphiboles, mainly from mantle xenoliths, were investigated for a number of intraplate and suprasubduction localities, with the aim of fingerprinting the metasomatic signatures for the two different geological settings. Amphiboles
FACCINI, Barbara, POWELL W., GREGOIRE M, BONADIMAN, Costanza, COLTORTI, Massimo, OREILLY S. Y   +5 more
core   +1 more source

A review of geophysical studies on the Mongolian Plateau

Earthquake Science
The Mongolian Plateau in Central Asia is an intracontinental tectonic system far from active plate boundaries. Despite its distance from these boundaries, the plateau is characterized by intense crustal deformation accompanied by voluminous Cenozoic ...
Lei Zhang, Zhouchuan Huang, Xiaodong Song, Qingju Wu   +3 more
doaj   +1 more source