IGNEOUS ROCKS SEDIMENTARY ROCKS METAMORPHIC ROCKS a rock is made of two or more minerals. ROCKS ARE DIVIDED INTO THREE GROUPS BASED ON HOW THE ROCKS FORMED IGNEOUS ROCKS SEDIMENTARY ROCKS METAMORPHIC ROCKS hOW ARE rOCKS fORMED? Today we will be using the rock formation chart to help us understa...
Use the igneous rock chart and cross reference the observed texture with the observed composition. Where the two “lines” cross is the rock name. Sedimentary Rock Classification Sedimentary Rock Textures Sedimentary rock textures are typically characterized by observing lithified (cemented) inorganic ...
rockname:Hornblendeandesite,because hornblendeisnotanessentialmineral 5 IUGSExtrusiveIgneousRock Chart 6 Basalt •Ageneraltermfordark-coloredmaficigneousrocks, commonlyextrusivebutlocallyintrusive(e.g.as dikes),composedchieflyofcalcicplagioclaseand
Lisa K. Samrock, Thor H. Hansteen, Wolf-Christian Dullo & Jo-Anne Wartho Contributions LKS, THH and WCD: conception and design of the study, field work and sampling; LKS: sample preparation; JAW: 40Ar–39Ar analyses; LKS and JAW: figures and data preparation; LKS, THH, WCD and JAW...