The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 187
... plagioclase constituent , whereas antiperthite is the name given to intimate mixtures in which the plagioclase con- stituent is predominant . Perthites are common , whereas antiperthites are relatively rare . The plagioclase series is ...
... plagioclase constituent , whereas antiperthite is the name given to intimate mixtures in which the plagioclase con- stituent is predominant . Perthites are common , whereas antiperthites are relatively rare . The plagioclase series is ...
Page 238
... plagioclase calcic plagioclase 10 Q - 5-20 % , P = 90-100 % sodic plagioclase calcic plagioclase mafics 0-10 % 11 Q - 0-5 % , P = 0-10 % 12 Q - 0-5 % , P = 10-35 % 13 Q - 0-5 % , P = 35-65 % 14 Q - 0-5 % , P = 65-90 % sodic plagioclase ...
... plagioclase calcic plagioclase 10 Q - 5-20 % , P = 90-100 % sodic plagioclase calcic plagioclase mafics 0-10 % 11 Q - 0-5 % , P = 0-10 % 12 Q - 0-5 % , P = 10-35 % 13 Q - 0-5 % , P = 35-65 % 14 Q - 0-5 % , P = 65-90 % sodic plagioclase ...
Page 268
... plagioclase alkali feldspar muscovite biotite garnet sillimanite glaucophane plagioclase lawsonite chlorite ( mafic ) garnet biotite omphacite garnet epidote epidote albite chlorite actinolite hornblende diopside orthopyroxene ...
... plagioclase alkali feldspar muscovite biotite garnet sillimanite glaucophane plagioclase lawsonite chlorite ( mafic ) garnet biotite omphacite garnet epidote epidote albite chlorite actinolite hornblende diopside orthopyroxene ...
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