Intrusive rock is formed when magma penetrates existing rock, crystallizes, and solidifies underground to form intrusions, such as batholiths, dikes, sills...
10 KB (1,171 words) - 07:47, 11 June 2024
feldspar Anorthosite – Mafic intrusive igneous rock composed predominantly of plagioclase Aplite – Fine-grained intrusive igneous rock type similar to granite...
14 KB (2,187 words) - 23:33, 16 April 2024
Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization...
48 KB (5,656 words) - 02:36, 23 June 2024
interrupting and disturbing to others Intrusive rock, intrusion of molten magma leaving behind igneous rock Saltwater intrusion, the movement of saline...
531 bytes (93 words) - 15:28, 27 May 2021
into the atmosphere to fall back as pyroclastics or tuff. In contrast, intrusive rock refers to rocks formed by magma which cools below the surface. The main...
6 KB (575 words) - 21:35, 11 June 2024
A subvolcanic rock, also known as a hypabyssal rock, is an intrusive igneous rock that is emplaced at depths less than 2 km (1.2 mi) within the crust...
2 KB (123 words) - 13:55, 27 July 2023
volcanic hazards, such as flank collapse.[citation needed] Extrusive rock Intrusive rock Wilkinson, Bruce H; McElroy, Brandon J; Kesler, Stephen E; Peters...
22 KB (2,430 words) - 08:07, 20 May 2024
Gabbro (/ˈɡæbroʊ/ GAB-roh) is a phaneritic (coarse-grained), mafic intrusive igneous rock formed from the slow cooling of magnesium-rich and iron-rich magma...
19 KB (2,321 words) - 17:11, 7 July 2024
Monzonite is an igneous intrusive rock, formed by slow cooling of underground magma that has a moderate silica content and is enriched in alkali metal...
8 KB (895 words) - 21:51, 7 January 2024
body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising...
22 KB (2,671 words) - 03:33, 11 February 2024