Igneous rocks are formed by the solidification of molten materials.
Igneous rocks can be transformed not made but i think you are asking what types of rocks are igneous rocks well any rock that had once been lava/molten is an igneous rock and lava/molten comes from volcano.You might want to search on Google-types of igneous rocks or how can igneous rocks be transformed. From Ayushi:)
Igneous rock can be found on the surface in areas of current or recent volcanism or in uplifted and eroded areas of past platonic intrusions, deep underground nearly anywhere, or in areas of past or present glaciations, where igneous rock has been eroded and deposited.
Metamorphic rocks originate as igneous and sedimentary rocks, but have been changed by heat and pressure.
Igneous rock can be found on the surface in areas of current or recent volcanism or in uplifted and eroded areas of past platonic intrusions, deep underground nearly anywhere, or in areas of past or present glaciations, where igneous rock has been eroded and deposited.
The youngest rocks on the moon have been found near the Apollo 11 landing site in the Ocean of Storms region. These rocks are estimated to be around 1.2 billion years old, much younger compared to the overall age of the moon.
No, erosion is not necessary for the formation of igneous rocks. Igneous rocks are formed from the cooling and solidification of magma or lava, which can occur below the Earth's surface or on the surface. Erosion can affect igneous rocks once they have been formed by breaking them down and transporting the sediments.
The oldest rocks in Iceland are found because of its location over the Mid-Atlantic Ridge, where new oceanic crust is continually formed. As a result, the rocks at Iceland's boundary represent some of the oldest on Earth as they have not been subjected to the intense tectonic activity and recycling that typically occurs at plate boundaries.
Igneous.
BASALT is for igneous. SLATE is for metamorphic. LIMESTONE is for sedimentary.
igneous
There are many explanation to your question. The most abundant type of rocks in collision zones are metamorphic rocks. But if there is a igneous it can as a result of convergence boundaries. In subduction zones where rising magma are penetrate through weaker rocks to form form lava and when solidified forms igneous rocks. You can also find them in accretion zones. Where 2 continental plates are accreted due to plate movement. They are not newly formed igneous. they have been there for years before accretion.