The intrusive landform produced when magma is cooled within the earth surface is?

The intrusive landform produced when magma is cooled within the Earth's surface is a batholith. A batholith is a large mass of intrusive igneous rock that is formed by the slow cooling and solidification of magma deep beneath the Earth's surface. When magma rises up from the Earth's mantle and cools underground, it can form large bodies of rock that can be exposed over time through erosion and uplift. These bodies of rock can range in size from a few kilometers to hundreds of kilometers across, and can be found all around the world. Batholiths are often made up of granitic rock, which is a type of igneous rock that is rich in minerals such as quartz, feldspar, and mica. They are typically very hard and resistant to erosion, which is why they often form prominent features in the landscape such as mountains and ridges. Some well-known examples of batholiths include the Sierra Nevada Batholith in California, the Coast Mountains Batholith in British Columbia, and the Bushveld Complex in South Africa.