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Earth Science
final exam with rocks and minerals
56
Geology
Undergraduate 1
10/27/2013

Additional Geology Flashcards

 


 

Cards

Term

Mineral 

  •  Non metalic 
  • Weaker than the glass
  • 1 Cleavege
  • Black
  • Thin
  • very black
  • Elastic plate 
Definition
[image] BIOTITE
Term

Mineral 

  • Nonmetalic 
  • Stronger than the glass
  • non cleavege 
  • black 
  • heavy, black, magnetico 
Definition
[image]
Term

Mineral 

  •  Nonmetalic
  • weaker than the glass
  • Cleavege: -1 R/thombic 
  • white 
  • Whiter than glass
  • Reacts with Hcl 
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • Softer than the glass 
  • 0 cleavage
  • White 
  • like Kao, powerdely 
Definition
[image]
Term

Mineral

  • Metalic 
  • Weaker than glass
  • 3 directions @90 of cleavage 
  • gray/ black Streak 
  • Shinny, with dark 
  • heavy 
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • harder than the glass
  • 0 cleavage
  • nome streak 
  • colorless to milky 
  • very hard 
Definition
[image]
Term

Minerals

  • Nonmetalic 
  • weaker than the glass
  • 1 direction of cleavage
  • white streak 
  • silver to gray 
  • very thin sheets 
  • transparente 
Definition
[image]
Term

Minerals 

  • Nonmetalic 
  • weaker than the glass 
  • 3 directions @ 90 
  • white streak 
  • colorless to white
  •  like ice 
  • SALTY 
Definition
[image]
Term

Minerals 

  • Metalic
  • weaker than the glass 
  • 1 cleavage
  • black Streak 
  • gray/ black, ink
  • SOFT 
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • weaker than the glass 
  • 1 basal cleavage 
  • white streak 
  • green to white
  • very soft 
  • pearly 
Definition
[image]
Term

Mineral 

  • Non metalic 
  • Harder than the glass
  • 0 cleavage 
  • 0 streak 
  • colorless to milky , pink or green 
  • very hard 
Definition
[image]
Term

Mineral 

  • Metalic 
  • Harder than glass
  • 0 cleavage 
  • black streak 
  • Shinny 
  • gold
  • pretty
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • harder than the glass
  • 0 cleavage
  • white streak 
  • earthy  red and brown 
  • rusty apperance 
  • 12 sided crystal 
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • about harder than glass 
  • 2@ 90 cleavage 
  • none streak 
  • dark to green 
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • = harder than glass
  • 2@90 cleavage
  • White streak
  • Salmon color
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • about harder than the class 
  • 2 NOT @ 90 ( 60 and 120 ) 
  • None streak 
  • Crystals black and shinny 
Definition
[image]
Term

Mineral 

  • Nonmetalic 
  • = glass
  • 2@90 cleavage
  • white Streak 
  • Striatus, white perfect straight lines 
  • pink and yellow 
Definition
[image]
Term

Minerals 

  • Nonmetalic 
  • harder than glass 
  • 0 cleavage
  • white streak 
  • green light 
Definition
[image]
Term

IGNEOUS ROCK

  • Phaneritic texture 
  • dark color 
  • all grains same size
  • black 
Definition
[image]
Term

IGNEOUS ROCK

  • Porphyritic aphanitic texture 
  • light 
  • Pink , Salmon, like tijolo
Definition
[image]
Term

IGNEOUS ROCK

  • Porphytitic aphanitic 
  • dark
  • you can see little grains 
Definition
[image]
Term

IGNEOUS ROCK

  • Phaneritic 
  • dark 
  • green dive
Definition
[image]
Term

IGNEOUS ROCK

  • Porphyritic aphanitic 
  • intermediate 
  • gray 
  • fine grained
Definition
[image]
Term

IGNEOUS ROCK

  • Pegmatic 
  • light 
  • light and course
Definition
[image]
Term

IGNEOUS ROCK

  • Phaneritic 
  • intermediate 
  • dalmatas, salt and peper 
Definition
[image]
Term

IGNEOUS ROCK

  • Aphantic
  • dark
  • brown and black
  • poroso 
Definition
[image]
Term

IGNEOUS ROCK

  • Aphanitic
  • light
  • pink 
  • very poroso
  • light 
  • with bubbles 
Definition
[image]
Term

IGNEOUS ROCK

  • Aphanitic 
  • light
  • opaque
  • edges
  • black glassy 
Definition
[image]
Term

IGNEOUS ROCK

  • Porohyritic Aphanitic 
  • light 
  • pink 
  • like tables in Brazil 
Definition
[image]
Term

IGNEOUS ROCK

  • Aphanitic 
  • dark 
  • pure dark 
  • like carvao 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Biogenic Clastics 
  • Composition : Calcite ( sheel fragments)
  • Location of Origin: beaches, nearshore, reefs
  • Distinctive features : fragments only, no matrix, very porous, reacts with Hcl Acid
Definition
[image]
Term

Sedimentary Rocks

  • Group : Chemical Precipitates 
  • Composition : Calcite
  • Location of Origin: Deep sea or protected lagoons
  • Distinctive features :Often dark, dense, homogenious, reacts with HCL acid
Definition
[image]
Term

Sedimentary Rocks

  • Group :Silicate Clatics 
  • Composition : quartz, fieldspar, rock fragments                 ( size >2mm) 
  • Location of Origin: Streams, floods
  • Distinctive features : rounded pebbles in matrix
Definition
[image]
Term

Sedimentary Rocks

  • Group : Chemical Precipitates 
  • Composition :gypsum
  • Location of Origin: desert lake 
  • Distinctive features : soft ( hardness =2)
Definition
[image]
Term

Sedimentary Rocks

  • Group : Biogenic clastics
  • Composition :calsite ( fossil in matrix ) 
  • Location of Origin: Ocean nearshore, reefs
  • Distinctive features :Sometimes dark, contain fossils, reacts with Hcl Acid 
Definition
[image]
Term

Sedimentary Rocks

  • Group :Silicate Clatics
  • Composition : clay minerals, quartz, maybe fieldspars, micas
  • Location of Origin: bays, lakes, lagoons, small strams 
  • Distinctive features : tabular, but not fissile, slightly gritty ( granulado) 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Chemical Precipitates 
  • Composition : quartz ( from dissolved siliceous skeletons of diatoms) 
  • Location of Origin: deep sea 
  • Distinctive features : hard ( hardness =7) smooth, conchoidal fractures 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Biogenic Clastics 
  • Composition : calcite 
  • Location of Origin: bays, lagoons, ocean floors
  • Distinctive features : fine and white, soft; reacts with HCl Acid. 
Definition
Term

Sedimentary Rocks

  • Group : Silicate Clastics 
  • Composition : quartz and > 25 % fieldspar 
  • Location of Origin: streansm near source 
  • Distinctive features : dirty sandstone, with small fragments, dark clay, very gritty 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Silicate Clastics 
  • Composition : clay minerals 
  • Location of Origin: bay, lakes, lagoons, ocean floors
  • Distinctive features : tabular ( tend to be in thin flat layers) and fissile ( easy to split along these thin flat layers) smooth 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Silicate Clastics 
  • Composition :> 25% rock fragments and clay minerals; quartz and maybe fieldspar
  • Location of Origin: turbidity currents ( ocean margins)
  • Distinctive features : " dirty, dark sandstone" with small rock fragments, dark clay, very gitty 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Chemical Precipitates 
  • Composition : halite 
  • Location of Origin: inner sea  or lake 
  • Distinctive features : cubic crystals, salty taste 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Biogenic Clastics 
  • Composition :carbon ( plant matter) 
  • Location of Origin: swamps, bogs, marshes, vegetation mats 
  • Distinctive features : black, soft 
Definition
[image]
Term

Sedimentary Rocks

  • Group : Silicate Clastics 
  • Composition : > 75% quartz 
  • Location of Origin: streams, beaches, deserts
  • Distinctive features : Usually" cleam", well sorted ( consists of approximatelly the same size) banded, grainy, very gritty
Definition
[image]
Term

Sedimentary Rocks

  • Group :Silicate Clastisc 
  • Composition :same as conglomerate ( quartz, fieldspar, rock fragments)
  • Location of Origin: same as conglomerate ( streams, floods), but near source
  • Distinctive features : angular, pebbles in matrix
Definition
[image]
Term

Metamorphic Rocks 

  • Foliated 
  • texture: Shistose 
  • Grain size: medium to coarse
  • Composition/ Origin: micas, quartz 
Definition
[image]
Term

Metamorphic Rocks 

  • Non- Foliated 
  • texture:  granoblastic
  • Grain size: fine to medium
  • Composition/ Origin: calcite 
Definition
[image]
Term

Metamorphic Rocks 

  • Foliated 
  • texture:  Gneissic
  • Grain size: medium to coarse
  • Composition/ Origin: fieldspars, quartz, micas 
Definition
[image]
Term

Metamorphic Rocks 

  • Foliated 
  • texture:  Phyllitic 
  • Grain size: fine
  • Composition/ Origin: fine muscovite and quartz 
Definition
[image]
Term

Metamorphic Rocks 

  • Foliated 
  • texture:  slaty
  • Grain size:  very fine
  • Composition/ Origin: clay minerals, very fine quartz 
Definition
[image]
Term

Metamorphic Rocks 

  • Non-Foliated 
  • texture:  granblastic
  • Grain size: fine to medium
  • Composition/ Origin: quartz
Definition
[image]
Term

Metamorphic Rocks 

  • Foliated Cataclastic
  • texture:  mylonitic
  • Grain size: fine to coarse
  • Composition/ Origin: variable 
Definition
[image]
Term

Metamorphic Rocks 

  • Non-Foliated 
  • texture:  granoblastic 
  • Grain size: fine 
  • Composition/ Origin:  bituminous coal ( carbon)
Definition
[image]
Term

Metamorphic Rocks 

  • Foliated 
  • texture:  Gneissic
  • Grain size: medium coarse
  • Composition/ Origin: Mostly amphibole, some plagioclasse
Definition
[image]
Term

Metamorphic Rocks 

  • Non-Foliated 
  • texture:  Granoblastic
  • Grain size: Medium to coarse 
  • Composition/ Origin: quartz+/- feldspar _ +/- rock fragments
Definition
[image]
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