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A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present, a plug can cause an extreme build-up of high gas pressure if rising volatile -charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption.
Volcanic plugs by country (8 C) Pages in category "Volcanic plugs" The following 3 pages are in this category, out of 3 total. This list may not reflect recent ...
Basalt columns seen on Porto Santo Island, Portugal. Columnar jointing of volcanic rocks exists in many places on Earth. Perhaps the most famous basalt lava flow in the world is the Giant's Causeway in Northern Ireland, in which the vertical joints form polygonal columns and give the impression of having been artificially constructed.
Volcanic group – Collection of related volcanoes or volcanic landforms; Volcanic island – Island of volcanic origin; Volcanic plateau – Plateau produced by volcanic activity; Volcanic plug – Volcanic object created when magma hardens within a vent on an active volcano; Volcano – Rupture in a planet's crust where material escapes
The formation of the Cayman Trough produced the last significant tectonic feature on the islands after 39 million years ago, with sinistral strike-slip faults. A structural block produced as a result creates a 5.7 kilometer sinistrally offset contact between the Water Island and Louisenhoj formations. [1]
Pages in category "Volcanic plugs of New Zealand" The following 11 pages are in this category, out of 11 total. ... Moturoa (island) O. Ōnawe Peninsula; S. Saddle ...
Volcanic plugs of North America (2 C, 2 P) O. Volcanic plugs of Oceania (2 C, 2 P) S. Volcanic plugs of South America (2 P) This page was last edited on 21 January ...
Volcanic plugs of New Zealand (11 P) S. Volcanic plugs of Spain (1 C) U. Volcanic plugs of the United Kingdom (3 C) Volcanic plugs of the United States (2 C, 26 P, 1 F)