An igneous intrusion - a dyke. #geology #geologist #outdoors #nature #dykes #scottish #scotland #arran #isleofarran #scottishgeology #scottishgeologist #nature #rocks #volcanic #igneous #adventure #reelsaboutrocks #ticktocksaboutrocks | Scottish Geologist

The Richat Structure: Eye of the Sahara, Igneous Intrusion Magma Upwelling #historicaltidbits #history #earthhistory #igneous #geology #geological #science | Historical Tidbits

IGNEOUS ROCKS Igneous rocks are the foundation of Earth’s crust, formed from the cooling and solidification of molten magma or lava. They are divided into two main types: intrusive igneous rocks, which cool slowly beneath the surface to form large crystals like granite, and extrusive igneous rocks, which cool quickly at the surface to form fine-grained textures like basalt. These rocks are the starting point of the rock cycle and reveal much about volcanic activity, plate tectonics, and the comp