Volcanic rock
Query URLs
https://term.museum-digital.de/md-de/tag/977
- Note
- Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks. For these reasons, in geology, volcanics and shallow hypabyssal rocks are not always treated as distinct. In the context of Precambrian shield geology, the term "volcanic" is often applied to what are strictly metavolcanic rocks. Volcanic rocks and sediment that form from magma erupted into the air are called "pyroclastics," and these are also technically sedimentary rocks.
-
Obsidian, Anschliff
Obsidian ist ein vulkanisches...
Object information
Image: Harzmuseum Wernigerode - CC BY-NC-SA -
Quarzporphyr (Rhyolith)
Quarzporphyr bzw. Rhyolith,...
Object information
Image: Kreismuseum Bitterfeld - CC BY-NC-SA -
Pechstein
Pechstein, rot-grüne Färbung....
Object information
Image: Kreismuseum Bitterfeld - CC BY-NC-SA
References
Synonyms
[]