By ExploreNow Editor, on April 14th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Historical
Last Known Eruption: 1932
Summit Elevation: 1397 m 4,583 feet
Latitude: 14.82°N 14°49’0″N
Longitude: 61.17°W 61°10’0″W
Renowned Montagne Pelée, forming the northern end of the island of Martinique, is the most active volcano of the Lesser Antilles arc. Three major edifice failures since the late Pleistocene, the last about 9000 years ago, have left large horseshoe-shaped calderas breached to the SW inside which the modern volcano has been constructed. More than 20 major eruptions have occurred at Pelée during the past 5000 years.
Click Here For The Rest Of Mt. Pelée, West Indies, France
Originally posted 2010-08-20 00:24:48.
By ExploreNow Editor, on March 26th, 2012%
Volcano Type: Lava domes
Volcano Status: Radiocarbon
Last Known Eruption: 4040 BC ± 150 years
Summit Elevation: 1464 m 4,803 feet
Latitude: 45.775°N * 45°46’30″N
Longitude: 2.97°E 2°58’0″E
The Chaîne des Puys, prominent in the history of volcanology, form a N-S-trending chain of basaltic and trachytic cinder cones, basaltic maars, and trachytic lava domes in France’s Massif Central that has been active into the Holocene. Construction of the present-day Chaîne des Puys began about 70,000 years before present (BP), and was largely completed by the beginning of the Holocene. Holocene eruptions constructed lava domes such as the Puy de Dôme, whose growth was accompanied by pyroclastic flows, cinder cones that fed lengthy lava flows, and maars. The latest well-documented activity took place about 6000 years BP near Besse-en-Chandesse and included the powerful explosions that formed the Lac Pavin maar. The dating of younger tephras has not yet been confirmed, and reports of historical eruptions as late as 1000 years BP have been discredited.
Click Here For The Rest Of Chaîne des Puys, France
Originally posted 2010-09-02 10:52:31.
By ExploreNow Editor, on March 20th, 2012%
Volcano Type: Shield volcano
Volcano Status: Historical
Last Known Eruption: 2010
Summit Elevation: 2632 m 8,635 feet
Latitude: 21.231°S 21°13’51″S
Longitude: 55.713°E 55°42’45″E
The massive Piton de la Fournaise basaltic shield volcano on the French island of Réunion in the western Indian Ocean is one of the world’s most active volcanoes. Much of its >530,000 year history overlapped with eruptions of the deeply dissected Piton des Neiges shield volcano to the NW. Three calderas formed at about 250,000, 65,000, and less than 5000 years ago by progressive eastward slumping of the volcano. Numerous pyroclastic cones dot the floor of the calderas and their outer flanks. Most historical eruptions have originated from the summit and flanks of Dolomieu, a 400-m-high lava shield that has grown within the youngest caldera, which is 8 km wide and breached to below sea level on the eastern side. More than 150 eruptions, most of which have produced fluid basaltic lava flows, have occurred since the 17th century. Only six eruptions, in 1708, 1774, 1776, 1800, 1977, and 1986, have originated from fissures on the outer flanks of the caldera. The Piton de la Fournaise Volcano Observatory, one of several operated by the Institut de Physique du Globe de Paris, monitors this very active volcano.
Click Here For The Rest Of Piton de la Fournaise, France
Originally posted 2010-08-20 05:00:31.
|
|
|
