EOSC 110 Study Guide - Final Guide: Silicate Minerals, Flux Melting, Oceanic Crust

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Published on 22 Dec 2015
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
Plate Tectonics

  ! 
" #$#%  &&
%&&
  $&  
' && (
))%
*( 
%
%
( 

+&&# 
#&&%,&%&  
-,&%
$& %%. 
%/ 
0.%
  1&
0.0,
.& ( 
&%%
Minerals

o%
o  %
o-
o*%
o*&
*%23
o4%#%*
*2%. 3
o$*
&5
o#0-*#%
o*
%
o%(&%&
6( (&%(&
! &7 (
%&
o* '(%%  (
%%  
o&  (%
o-
o6 (
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
o
o
o-2& 3
o$ 2! %, 
3
o4
o-&8%2 (! 
 3
% 23
-2%&&3
#&2&.%%(%&
& 3
+&%%
o293:
o2.3:
/+;
#+(< 
=11((%&>
Magmatism
#%%-+#%
*?
#%% 
#8%

#%& 
& & (
%
#
o& 
2@%3
o#& 
2&%3
o+A2 
'32* %3
#% -
2B3
=
2 3
) 
2 3
#8 CD.D" / @((
 D.ED + 6
* FED  @
'&%
o#82.%&3
o2 ( >3
'&=
o-
@&
/
$8,
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
+&
#8
$%
o
-&&
-&
)%
/
#8
o&2-3
o-&
o$%
o$&%,
o+
o#8
)%%*$&
 #%( ( >
" #%( ( >
 #%% %
C G&%
D )% 
E @*%
H #%% 
I  & %%&
Felsic Intermediat
e
Mac Ultramac
Coarse-
grained
@ 6 @(( )
Fine-
grained
 + /
Mineral
Content
J >
&
2%
%
&3#
%

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%3
( D.
DKB
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
%
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&%
&
2 
%3

%
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2
&3
Color of
Rock
$% # .%
 .
%
6%
(
@
(
Igneous Processes
 % 
o*%.F>28.%3
o+5 
o.
 % 
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Document Summary

Proof of pangea: core: iron & nickel, inner core is solid, outer core is liquid, mantle: less dense, iron & magnesium, lower mantle and uppermost mantle are, crust: least dense, silicates, potassium and sodium. The uppermost mantle and crust are less dense than layers below rigid while the asthenosphere is plastic. Mapping of sea floor revealed topographic features of the oceanic crust. Less dense continents plowed through high-density rocks of the oceanic crust. Oceanic-continental creates volcanoes from magma that is less dense and rises to form extrusive or intrusive rocks. Oceanic-oceanic creates volcanoes on the sea floor and islands. Continental-continental, neither of the plates subduct and deforms with vertical uplift and thickening and lateral shortening. Characteristics: inorganic, naturally occurring, crystalline solid, fixed internal arrangement of atoms, fixed chemical composition, high in mg, fe content. Chemical composition of earth"s layers: lack fe, mantle: o, si, fe, mg, core: fe, ni, cleavage: ability to split along one or more places of weakness.

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