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ERB-12_ppl
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ERB-12
ERB-12_ppl
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Object Description
Rating
Thin Section ID
ERB-12
Quantity
1
Handsample ID(s)
yes
Rock Class
metamorphic
Rock Name
metagabbro
Mineral Assemblage
orthopyroxene
augite
hornblende
plagioclase
opaques
Microscopic Description
This
two-pyroxene
,
hornblende-bearing
gabbro
is
highly
fractured
and has a
much
finer-grained
population
of
pyroxenes
growing
in the
interstices
between
larger
pyroxene
grains
. A
thin
band
of
finer-grained
pyroxne
and
plagioclase
cross-cuts
the
sample
.
Geographic Sample Location
Metchin
River
Shear
Zone
,
Churchill
Falls
,
Labrador
,
Canada
Petrologic Suite Name
Metchin
River
Shear
Zone
,
Labrador
,
Canada
Suite Description
Mylonitized
shear
zone
rocks
separating
amphibolite
and
granulite
grade
terranes
of the
Grenville
Front
Collector Name
Ross Baldwin
Year Collected
2003
Storage Location
TSC L-shaped, G, y, 'Metchin River, Labrador 2003', gray box, 'Ross Baldwin Churchill Falls, Lab.'
Oriented
no
Description
Thin Section ID
ERB-12_ppl
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ERB-12
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ERB-12_xpl
ERB-12
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