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Are you talking total volume of rock or ratio of volcanics:igneous and sedimentary. As a percentage of the country rock composition, I'd say Iceland...virtually entirely basalt. Otherwise, go for the biggest countries for total mass: # Russia # Canada # United States # China # Brazil # Australia # India # Argentina
What else can I help you with?
What is most likely to produce a fragmental sedimentary rock?
Volcanic eruptions are most likely to produce fragmental sedimentary rocks due to the rapid cooling and subsequent deposition of ejected volcanic material, such as ash, lava fragments, and rocks. These materials can accumulate, compact, and cement together to form rocks like tuff or volcanic breccia.
What are the key differences between volcanic and plutonic rocks in terms of their formation and characteristics?
Volcanic rocks form from lava that cools quickly on the Earth's surface, while plutonic rocks form from magma that cools slowly beneath the surface. Volcanic rocks have fine-grained textures, while plutonic rocks have coarse-grained textures. Volcanic rocks are often found in volcanic regions, while plutonic rocks are typically found deeper underground.
Why are extrusive rocks sometimes referred to as volcanic?
An extrusive rock is a rock that has been deposited at the earths surface as a liquid/fluid, coming to the surface form a depth through a fissure in the earth as a liquid/fluid. The most common type of liquid rock is a magma and magmas erupting at the surface are called "volcanoes" and thus the rocks are called "volcanic" rocks. However there are also volcanoes to be found that have nothing to do with molten rock magmas. These are called "Mud" volcanoes and they are caused by de-watering processes in rocks. The muds brought to the surface are also technically extrusive and these are NOT volcanic rocks.
What rocks are also called fiery rocks?
Rocks that are commonly referred to as fiery rocks include types of volcanic rocks such as obsidian, basalt, and pumice due to their formation from volcanic activity and fiery origins.
What kind of rocks that are formed by volcanic activity?
Rocks formed by volcanic activity are called igneous rocks. These rocks form when molten magma cools and solidifies either above or below the Earth's surface. Examples of volcanic igneous rocks include basalt, andesite, and rhyolite.
What is the liquid found in volcanic rocks?
If there is liquid in volcanic rocks, it would most likely be water.
Are volcanic rocks igneous rocks?
Yes. Volcanic rocks are extrusive igneous rocks.
Are Volcanic rocks metal?
No. Volcanic rocks are made of the same materials that other rocks are.
Are metamorphic rocks volcanic?
No. Only extrusive igneous rocks are volcanic.
What are volcanic rocks?
Volcanic rocks are classified as extrusive igneous rocks, forming from the solidification of lava.
Are intrusive rocks volcanic?
No. Volcanic rocks are extrusive. Intrusive rocks are sometimes called plutonic.
Is volcanic rock older than sedimentary rock?
Not necessarily. There are volcanic rocks that date back to the precambrian time, much older than most sedimentary rocks around today. At the same time, as there is still continuous volcanic activity on earth, some volcanic rocks may be only minutes old, making them the youngest rocks on earth.
What is the hardness of a volcanic rock?
Volcanic rocks can vary in hardness depending on their mineral composition. On the Mohs scale of mineral hardness, most volcanic rocks fall between 5 to 7, with basalt being around 6 and rhyolite around 7.
Are volcanic rocks hot?
Volcanic rocks are hot if they are freshly erupted. Otherwise, no.
Magma that is rejected during a volcanic eruption forms igneous rocks?
Magma that is ejected during a volcanic eruption forms extrusive igneous rocks. They are also referred to as volcanic rocks.
Are volcanic rocks sedimentary?
No. Volcanic rocks are igneous (although not all igneous rocks are volcanic). Sedimentary rocks are made of sediment naturally cemented together. However, volcanic (or extrusive igneous) rocks can be eroded into sediment, which can be cemented, compacted, or otherwise become sedimentary rock such as sandstone or conglomerate. It is then not considered igneous.
What rocks are in Mexico?
Mexico has a diverse range of rocks, including obsidian, onyx, and travertine. In addition, Mexico has many volcanic rocks due to its high level of volcanic activity, such as basalt and andesite. The country also has a variety of sedimentary rocks like limestone and sandstone.
