Granite
Your fat mom
quick cooling
A fine grained igneous rock forms from Lava that escapes from the earth crust to the surface and cools and solidifies rapidly.
Glassy textured extrusive igneous rock, such as obsidian.
extrusive igneous rocks =/
The fine-grained equivalent of gabbro is basalt. Basalt is an igneous rock that forms from the rapid cooling of lava on the Earth's surface, resulting in smaller mineral crystals compared to gabbro.
Extrusive igneous rocks are fine grained due to fast cooling. They cool at a faster rate than most igneous rocks.
quick cooling
Basalt
Uplift and solidification
Fine-grained igneous rocks are formed when magma cools quickly at or near the Earth's surface, resulting in rapid crystal formation. This rapid cooling prevents large mineral crystals from forming, giving the rock its fine-grained texture. Examples of fine-grained igneous rocks include basalt and rhyolite.
A fine grained igneous rock forms from Lava that escapes from the earth crust to the surface and cools and solidifies rapidly.
Glassy textured extrusive igneous rock, such as obsidian.
Basalt and rhyolite are examples of fine-grained igneous rocks.
Methods of formation. If crystalline (igneous or metamorphic) they would most likely have had differing rates of cooling. If sedimentary, they would most likely have had differing depositional environments (higher energy for larger grain sizes).
All molten rock is capable of cooling quickly into fine-grained rocks, but here are some common fine-grained igneous rocks: Basalt Obsidian Andesite Rhyolite Tuff (a rock made from volcanic ash)
when the lava cools quickley it is fine-grained
Two examples of fine-grained igneous rocks are basalt and rhyolite. Basalt is a dark-colored rock with a composition rich in iron and magnesium, while rhyolite is light-colored and has a high silica content. Both rocks form from the cooling and solidification of molten magma.