Difference between revisions of "Basic Rock"

Revision as of 21:22, July 14, 2007

'Basic rocks are igneous rocks that contain between 45% and 55% total silica. These have less than 10% quartz and are rich in ferro-magnesian minerals.

Pellant, p. 250

Pellant, Chris. The Complete Book of Rocks and Minerals, Dorling Kindersley Inc.: New York (1995)

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-[[Igneous rock]] that contains between 45% and 55% total [[silica]]. These have less than 10% [[quartz]] and are rich in [[ferro-magnesian mineral]]s.
+'''Basic rocks'' are [[igneous rock]]s that contain between 45% and 55% total [[silica]]. These have less than 10% [[quartz]] and are rich in [[iron|ferro]]-[[magnesium|magnesian]] [[mineral]]s.
 Pellant, p. 250
-=Sources=
+==Sources==
 *Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995)
-[[category:geology]]
+[[category:Igneous rocks]]