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Page 238
The rocks are generally leucocratic ; diorites and quartz diorites typically contain
less than 30 percent mafic minerals — e.g . , hornblende and biotite . Pyroxenes
are rare but are more commonly found in the gabbros . Mineralogically the ratio ...
The rocks are generally leucocratic ; diorites and quartz diorites typically contain
less than 30 percent mafic minerals — e.g . , hornblende and biotite . Pyroxenes
are rare but are more commonly found in the gabbros . Mineralogically the ratio ...
Page 239
The mantle rocks located at depths from about percentage of Sio , by weight 70 to
200 kilometres are believed to exist at ... and possibly 1 or 2 Figure 110 : Alkali -
silica ( SiO2 ) plot subdividing the percent of the rocks occur in the molten state .
The mantle rocks located at depths from about percentage of Sio , by weight 70 to
200 kilometres are believed to exist at ... and possibly 1 or 2 Figure 110 : Alkali -
silica ( SiO2 ) plot subdividing the percent of the rocks occur in the molten state .
Page 284
People under 15 made up more than 40 percent of the populations of the Third
World, as compared with between 20 and 30 percent in the industrialized world. It
was argued that the birth rate remained stubbornly high in these societies partly ...
People under 15 made up more than 40 percent of the populations of the Third
World, as compared with between 20 and 30 percent in the industrialized world. It
was argued that the birth rate remained stubbornly high in these societies partly ...
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Contents
CONTENTS METAPHYSICS 27 MEXICO | 27 |
MEXICO CITY | 51 |
MICHELANGELO | 55 |
Copyright | |
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Anatolia ancient appears areas atoms become body buildings called central centre century changes chemical clay common complex composition consists contain continued crystals cuttlefishes deposits developed direction early economic electron example existence experience fact feldspar Figure given gods grains human igneous important increase individual industrial Italy king known land later layers less light major mantle material means mental metamorphic metaphysics Mexican Mexico microscope mimicry mind minerals Moscow nature object occur organic originally percent period person philosophers physical pigeonite political population present pressure produced properties quartz range region relatively religion religious represented result rocks sedimentary rocks sediments shell silicate social society species structure surface temperature things thought tion typically United various
Bibliographic information
| Title | The New Encyclopaedia Britannica |
| Author | Encyclopaedia Britannica, inc |
| Edition | 15 |
| Publisher | Encyclopaedia Britannica, 1997 |
| ISBN | 0852296339, 9780852296332 |
| Length | 1026 pages |
| Export Citation | BiBTeX EndNote RefMan |