Where do igneous rocks originate?
o How are they formed?
o What are the two categories of igneous rocks?
o What are the distinguishing characteristics between the two categories of rocks?
i know its online somewhere I just can not find it please help
http://www.rocksforkids.com/RFK/howrocks.html#Igneous
To find the answers to your questions about igneous rocks, you can follow these steps:
1. Open a web browser on your device.
2. Navigate to a search engine such as Google.
3. Type in your first question, "Where do igneous rocks originate?" and hit Enter or click on the search button.
4. Look for reputable sources such as educational websites, geology encyclopedias, or scientific articles in the search results.
5. Click on one of the relevant search results to find the answer. Make sure to read the information carefully to understand it thoroughly.
To provide you with a brief explanation, here are the answers to your questions:
1. Igneous rocks originate from the cooling and solidification of molten rock material called magma. Magma forms beneath the Earth's surface through processes like volcanic activity or the melting of existing rocks.
2. The two categories of igneous rocks are intrusive (also called plutonic) rocks and extrusive (also called volcanic) rocks.
3. Intrusive igneous rocks form when magma cools and solidifies slowly beneath the Earth's surface, resulting in a coarse-grained texture. Examples include granite and diorite. On the other hand, extrusive igneous rocks are formed when magma erupts onto the Earth's surface and cools rapidly, leading to a fine-grained or glassy texture. Examples include basalt and rhyolite.
4. The distinguishing characteristics between the two categories of igneous rocks are primarily their textures and origin. Intrusive rocks have large, visible mineral grains due to slow cooling, while extrusive rocks have small mineral grains or can even be glassy due to rapid cooling. Intrusive rocks are also found beneath the Earth's surface and have a plutonic origin, while extrusive rocks are found on the Earth's surface and have a volcanic origin.
Remember, for more detailed and accurate information, it is always recommended to consult reliable sources found online or in books specifically dedicated to geology or igneous rocks.