Table of Contents
- 1 Do basalt and rhyolite have the same texture?
- 2 Is rhyolite granitic or basaltic?
- 3 What igneous rock is similar to basalt?
- 4 How is rhyolite rock formed?
- 5 Is rhyolite or basalt denser?
- 6 Is rhyolite a basalt?
- 7 Is rhyolite an igneous rock?
- 8 What is the similarity between granite and basalt?
- 9 What are the differences between basalt and gabbro?
- 10 How is gabbro different from basalt?
Do basalt and rhyolite have the same texture?
Texture indicates how a rock cooled. The two rocks in a pair have the same composition but different textures: gabbro-basalt, diorite-andesite, and granite-rhyolite.
Is rhyolite granitic or basaltic?
Granite and rhyolite are considered felsic, while basalt and gabbro are mafic (click here for more information on mafic and felsic). Felsic rocks, in general, form the bulk of the continental plates, while mafic basalt forms the seafloor.
What is similar to basalt?
Gabbro. Gabbro is a silica-poor intrusive igneous (plutonic) rock chemically equivalent to basalt. It is normally coarse-grained, dark and typically contains feldspar, augite and sometimes olivine.
What igneous rock is similar to basalt?
Gabbro is a silica-poor intrusive igneous (plutonic) rock chemically equivalent to basalt. It is normally coarse-grained, dark and typically contains feldspar, augite and sometimes olivine.
How is rhyolite rock formed?
Rhyolite is a volcanic rock. It is fine-grained because it forms by the rapid cooling of magma, usually when it erupts onto the Earth’s surface. When rhyolite erupts quietly it forms lava flows. Rhyolite forms from magma that contains lots of silica (quartz) and is the fine-grained equivalent of granite.
What environment does Rhyolite?
Rhyolite usually forms in continental or continent-margin volcanic eruptions where granitic magma reaches the surface. Rhyolite is rarely produced at oceanic eruptions.
Is rhyolite or basalt denser?
Densities of Igneous Rocks
| Rock Type | Density Range (g/cm ) |
|---|---|
| Rhyolite | 2.35 – 2.70 |
| Granite | 2.50 – 2.81 |
| Andesite | 2.40 – 2.80 |
| Basalt | 2.70 – 3.30 |
Is rhyolite a basalt?
The main difference between basalt and rhyolite is that basalt usually appears in dark colours, while rhyolite usually appears in light colours. Basalt is an extrusive igneous rock type. Rhyolite is considered as an extrusive volcanic rock that is equivalent to granite.
What is the difference between rhyolite and andesite?
is that andesite is (geology) a class of fine-grained intermediate igneous rock, of volcanic origin, containing mostly plagioclase feldspar while rhyolite is (geology) an igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture.
Is rhyolite an igneous rock?
Rhyolite, extrusive igneous rock that is the volcanic equivalent of granite. Most rhyolites are porphyritic, indicating that crystallization began prior to extrusion.
What is the similarity between granite and basalt?
Basalt and granite are similar in the they are both igneous, silicate rocks and common on Earth. They also have numerous differences. Basalt is extrusive, mafic, and common throughout the Solar System whereas granite is intrusive, felsic, and common only on Earth.
What are the similarities between granite and rhyolite?
Granite is plutonic and rhyolite is volcanic. They have very similar compositions but one is erupted onto Earth’s surface and the other crystallises at depth. As a result, plutonic rocks are coarse-grained and volcanic rocks are fine-grained.
What are the differences between basalt and gabbro?
Definition. Gabbro is a type of intrusive igneous rock which forms deep beneath the Earth’s crust while basalt is a type of an extrusive igneous rock that forms at or
How is gabbro different from basalt?
Gabbro has the same mineral composition as basalt (olivine and pyroxene with smaller amounts of feldspar and mica), though basalt cools quickly above the Earth’s surface from lava. Gabbro is coarse grained while basalt is fine grained.