Show:
Volcanoes
Mineral Composition
Igneous Rock Textures
Igneous Rock Formation
Intrusive VS Extrusive
100
A type of volcano found at divergent boundaries and over hot spots.
What is a shield volcano
100
This is determined by the mineral composition of a rock.
What is color
100
A texture with minimal crystal growth.
What is Glassy
100
Molten rock trapped underground is called this.
What is magma
100
Formed deep underground and have course textures.
What is Intrusive rocks
200
A type of volcano found abundantly throughout the Ring of Fire and at subduction zones.
What is a composite or stratovolcano
200
Granite, rhyolite, obsidian, pumice.
What is Felsic or Light colors
200
Two textures, course ingrained in fine matrix due to two cooling periods.
What is Porphyritic
200
The reason for glassy and fine textures.
What is crystallization happened fast or minimally.
200
Diorite is this kind of rock.
What is Intrusive rock
300
A type of volcano associated with strombolian eruptions.
What is a cinder cone or scoria cone volcano
300
Basalt, gabbro, scoria.
What is Mafic or Dark colors
300
Rhyolite has this texture.
What is Fine
300
Crystallization during the rock's formation affects this in the rock.
What is texture
300
Scoria and obsidian or both examples of this type of rock.
What is extrusive rock
400
Pea to walnut sized pyroclastics.
What is Lapilli
400
Middle silica content with light and dark colored minerals present.
What is Intermediate colors or andesite and diorite
400
Gabbro has this texture.
What is Course
400
Andesite is found at this plate boundary.
What is a Convergent boundary or subduction zone
400
If a rock has a fine or glassy texture, it is this type of rock.
What is extrusive rock
500
Has very explosive eruptions
What is a composite or stratovolcano
500
This rock can have up to 25% dark minerals, but is classified as a light colored rock.
What is Granite
500
Andesite has this texture.
What is Porphyritic.
500
This is how obsidian is formed.
What is the rapid cooling of felsic lava with minimal crystal growth.
500
A rock which is both intrusive and extrusive.
What is Andesite