Search results
Results from the WOW.Com Content Network
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 (2 C, 3 P, 1 F) Volcanoes (28 C, 21 P) Volcanogenic lakes (2 C, 1 P) Volcanogenic massive sulfide ore deposits (8 P) Pages in category "Volcanic landforms"
Media in category "Volcanic plugs of the United States" This category contains only the following file. Shiprock.jpg 640 × 480; 82 KB
Pages in category "Volcanic plugs" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. ...
Lone Butte is a low, steep-sided mesa butte or volcanic plug in southern British Columbia, Canada, located on the southern Cariboo Plateau to the southeast of 100 Mile House. It is composed of columnar basalt that formed within a prehistoric volcano six million years ago.
Volcanic plugs of the United Kingdom (3 C) Volcanic plugs of the United States (2 C, 26 P, 1 F) This page was last edited on 27 April 2020, at 02:34 (UTC). Text ...
List of individual rocks; Granite dome – Rounded hills of bare granite formed by exfoliation; Bornhardt – A large dome-shaped, steep-sided, bald rock; Inselberg – Isolated, steep rock hill on relatively flat terrain; Butte – Isolated hill with steep, often vertical sides and a small, relatively flat top
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.