The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 193
... Igneous rocks . Calcic amphiboles are characteristically contained in igneous rocks . Igneous amphiboles are inter- mediate in composition between tremolite , tschermakite , edenite , and pargasite end - members . Typically , these am ...
... Igneous rocks . Calcic amphiboles are characteristically contained in igneous rocks . Igneous amphiboles are inter- mediate in composition between tremolite , tschermakite , edenite , and pargasite end - members . Typically , these am ...
Page 232
... IGNEOUS ROCKS Silica content Felsic and mafic rocks Alteration products Pyroclastic texture. The concept of hysteresis is fundamental when describing and comparing the magnetic properties of rocks . Hystere- Hysteresis sis is the ...
... IGNEOUS ROCKS Silica content Felsic and mafic rocks Alteration products Pyroclastic texture. The concept of hysteresis is fundamental when describing and comparing the magnetic properties of rocks . Hystere- Hysteresis sis is the ...
Page 233
... igneous rocks are composed of silicate minerals ( meaning that the basic building blocks for the magmas that formed them are made of silicon [ Si ] and oxygen [ O ] ) , but minor occurrences of carbonate - rich igneous rocks are found ...
... igneous rocks are composed of silicate minerals ( meaning that the basic building blocks for the magmas that formed them are made of silicon [ Si ] and oxygen [ O ] ) , but minor occurrences of carbonate - rich igneous rocks are found ...
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