The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 163
... rocks Classification of volcanic and hypabyssal rocks Origin and distribution 239 Origin of magmas Nature of magmas Crystallization from magmas Volatile constituents and late magmatic processes Forms of occurrence 243 Extrusive igneous ...
... rocks Classification of volcanic and hypabyssal rocks Origin and distribution 239 Origin of magmas Nature of magmas Crystallization from magmas Volatile constituents and late magmatic processes Forms of occurrence 243 Extrusive igneous ...
Page 193
... igneous and meta- morphic rocks with a broad range of bulk chemical com- positions . Because of their relative instability to chemical weathering at the Earth's surface , amphiboles make up only a minor constituent in most sedimentary rocks ...
... igneous and meta- morphic rocks with a broad range of bulk chemical com- positions . Because of their relative instability to chemical weathering at the Earth's surface , amphiboles make up only a minor constituent in most sedimentary rocks ...
Page 233
... Igneous processes have been active since the formation of the Earth some 4.6 ... igneous rocks are composed of silicate minerals ( meaning that the basic ... rock consisting solely of pyroxene . Mineralogically it would Minerals and Rocks 233.
... Igneous processes have been active since the formation of the Earth some 4.6 ... igneous rocks are composed of silicate minerals ( meaning that the basic ... rock consisting solely of pyroxene . Mineralogically it would Minerals and Rocks 233.
Common terms and phrases
albite amphiboles ancient aragonite areas atoms basalt bivalves body calcite calcium called carbonate central centre century cephalopods chemical clay minerals colour common composition contain crust crystals ctenidia cult cultural deities deposits developed dolomite Earth economic eggs electron evaporite example existence facies feldspar Figure garnet gastropods goddess gods grains Hittite human igneous rocks important industrial kaolinite king known layers limestone magma magnetic major mantle cavity marine material mental metamorphic rocks metaphysics Mexican Mexico City mica Michelangelo microscope millimetres Milton mimicry mind Mineralogy modern Molière Mongolia Mongols Moscow myth nature object occur ocean olivine organic originally oxide percent period philosophers physical plagioclase political population pressure produced properties pyroxene quartz reaction region religion religious reprinted result sandstones sedimentary rocks sediments shell silicate smectite snails society species structure Sumerian surface temperature temple tetrahedrons texture tion typically United urban volcanic