Results 41 to 50 of about 3,246 (166)
Mafic Plinian volcanism and ignimbrite emplacement at Tofua volcano, Tonga
, 2011 Tofua Island is the largest emergent mafic volcano within the Tofua arc, Tonga, southwest Pacific. The volcano is dominated by a distinctive caldera averaging 4 km in diameter, containing a freshwater lake in the south and east.
Caulfield, J. T. +7 more
core +1 more source
, 2023 The 39.8-ka Campanian Ignimbrite was emplaced during a large caldera-forming eruption of Campi Flegrei near Naples, Italy. The ignimbrite is found up to 80 km from the caldera, and co-ignimbrite ash-fall deposits occur 3200 km away.
Iacovino, Kayla +11 more
core +1 more source
Volcanology and geochemistry of the Kaingaroa Ignimbrite, Taupo Volcanic Zone, New Zealand. [PDF]
, 1997 The 0.23 Ma Kaingaroa Ignimbrite is a composite multiple flow-unit ignimbrite erupted from Reporoa Caldera, Taupo Volcanic Zone (TVZ), New Zealand. The Kaingaroa Ignimbrite has a complex internal stratigraphy with a complex basal tephra sequence of ...
Beresford, Stephen Willis +1 more
core +1 more source
Source of the Glencoe Ignimbrites [PDF]
Nature, 1963 IGNIMBRITES1,2 are a characteristic component of the typically post-orogenic basalt–andesite–rhyolite volcanic association. These pyroclastic deposits are now generally accepted2 as having been produced by eruptions of nuees ardentes in which solid particles, both rock and crystal fragments, glass shards and pumice fragments are suspended by turbulent ...
openaire +1 more source
Rotliegend-Ignimbrite in der Prims-Mulde (Saar-Nahe-Senke/Südwestdeutschland)
, 1983 Die oberrotliegenden rhyolithischen Tuffe der Prims-Mulde werden als Ignimbrite interpretiert. Sie sind maximal 110 m mächtig, gliedern sich durch wenige air-fall-Tuffe in mehrere Einheiten und können auf beiden Flanken der Prims-Mulde bis zu ca.
Minning, Manfred E., Lorenz, Volker
core +1 more source
Guidebook for Pre-conference North Island Field Trip A1 ‘Ashes to Issues’, 28-30 November, 2008
, 2008 Welcome to New Zealand or Aotearoa – „Land of the long lingering day [twilight]‟ – and to our three-day pre-conference North Island field trip „Ashes and Issues‟.
Lowe, David J.
core
Zeolitization and feldspathization processes of the Campanian Ignimbrite, southern Italy
, 2021 The Campanian Ignimbrite formed the Campi Flegrei caldera, located to the west of Naples, Italy, at about 39 ka. The dilute pyroclastic density current, which had an emplacement temperature above 580 ºC, surmounted high topography (over 1400 m) and ...
Laplant, Paige Elizabeth
core
, 2011 The Central Anatolian Volcanic Province (CAVP), one of four major volcanic provinces in Turkey, plays a significant role in the interpretation of the tectonic evolution of Central Anatolia. The CAVP developed within a complex collisional system involving
Davis, P. +5 more
core +1 more source
Ages on weathered Plio-Pleistocene tephra sequences, western North Island, New Zealand
, 2001 Using the zircon fission-track method, we have obtained five ages on members of two strongly-weathered silicic, Pliocene-Pleistocene tephra sequences, the Kauroa and Hamilton Ash formations, in western North Island, New Zealand.
Liddell, Ivan J. +5 more
core
The Somers ignimbrite and related volcanics, Mt Somers, mid-Canterbury, New Zealand
, 1994 Mount Somers, mid-Canterbury, New Zealand, consists of rocks of the Mt Somers Volcanic Group, a suite of mid-Cretaceous (89+/-2.0Ma) calcalkaline intermediate and silicic volcanics.
Smith, Timothy R.
core +1 more source