Get our newsletter!
Voyages aux volcans actifs !
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Départs garantis:
4-11 août 2019: Le Grand Lac de Lave du Nyiragongo - République démocratique du Congo et Rwanda
12-30 août 2019: Kamchatka - Land of Colors - Kamchatka (Russia)
13-29 août 2019: Les volcans actifs de Java - Java (Indonésie)
1-19 sept. 2019: Kamchatka - Land of Colors - Kamchatka (Russia)
3-18 sept. 2019: Du Krakatau à Bali - Java (Indonésie)
12-20 oct. 2019: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
2-18 nov. 2019: Volcans et Épices - Mer des Moluques (Sulawesi, Indonésie)
9-17 mai 2020: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
: Places libres / : Départ garanti / : Quelques places disponibles / : Groupe fermé
Diaporama
Actualités

Pas d'article dans la liste.

 

Lunar Crater volcan

champ volcanique 2255 m / 7,398 ft
Nevada, USA (mainland exept Alaska), 38.25°N / -116.05°W
Condition actuelle: (probablement) éteint (0 sur 5) | Reports
Lunar Crater livres
Style éruptif tipique: explosive
Eruptions du volcan Lunar Crater: around 15,000 years ago
HeureMag. / DepthDistanceLocation
Mon, 15 Jul 2019
Mon, 15 Jul 05:26 UTCM 1.6 / 8.3 km19 km50km ENE of Warm Springs, Nevada (USA)
The Lunar Crater volcanic field is a zone of vulcanism covering over 300 km2 at the southern end of the Pancake Range in the Great Basin Desert, Nevada. It contains numerous cinder cones and lava flows, fissures, and, most visibly, the 150 m deep Lunar Crater, a 1050 m wide and nearly circular maar (explosion crater) believed to have formed about 15,000 years ago.
Lunar Crater is one of Nevada's 6 National Natural Landmarks.

Introduction:

From Wood and Kienle, 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, 354p., p.256-262, Contribution by John C. Dohrenwend (cited on CVO / USGS website):

The Lunar Crater volcanic field, an apparent middle to late Pliocene and Pleistocene continuation of the Reveille Range volcanic field immediately to the southwest, is superposed across the 25-million-year-old Lunar Lake caldera, a crudely circular topographic basin on the crest of the Pancake Range. The field contains approximately 95 late Pliocene and Pleistocene vents and at least 35 associated lava flows contained within a northeast-trending zone, up to 10 kilometers wide and approximately 40 kilometers long, that extends obliquely across the flanks and crest of the range. Vents include cinder cones, elongate fissures, and at least two maars. Lunar Crater, a nearly circular maar, approximately 130 meters deep and 1,050 meters wide, is the most distinctive feature of the field. A second maar, approximately 550 meters wide and 65 meters deep, occurs at the south end of a northeast-trending chain of coalesced cinder cones. Several other northeast-trending alignments of closely spaced and coalesced cinder cones characterize the field. Lava flows range up to 1.9 kilometers wide and 6.1 kilometers long with thicknesses from less than 3 meters to as much as 25 meters. Progressive degradation of the cones and flows is very similar to that displayed by other basaltic volcanic fields in the southwest Basin and Range (including the Cima, Crater Flat, and Coso fields). Many of the flows in the northeast and central parts of the field are veneered with varying thicknesses of air-fall tephra. In other areas, all but the youngest flows are mantled with extensive deposits of aeolian silt and fine sand.

The Lunar Crater volcanic field is in the central Great Basin, approximately 105 kilometers east-northeast of Tonopah, Nevada, and 140 kilometers southwest of Ely, Nevada. U.S. Highway 6 runs through the center of the Lunar Crater field.


Derniers images satellite

 

Plus sur VolcanoDiscovery:

Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.