Geo Lab exam fall 2022
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School
Temple College *
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Course
1403
Subject
Geology
Date
Feb 20, 2024
Type
Pages
12
Uploaded by GrandRoseAnt103
Name: Section # Physical Geology Laboratory Final 1.
What mineral is this: ______________ MOH Hardness : 7 Cleavage: Poor Specific gravity: 4 g/cm3 Luster: non-metallic, vitreous 2.
What mineral is this: ______________ MOH Hardness : 7 Fracture: Conchoidal Specific gravity: 2.65 g/cm3 Luster: vitreous to waxy 3.
What mineral is this: ______________ MOH Hardness : 3 Cleavage: rhombohedral Specific gravity: 2.7 g/cm3 Luster: non-metallic 4.
What mineral is this: ______________ MOH Hardness : 6 Cleavage: good cleavage on 3 plains Specific gravity: 2.7 g/cm3 Luster: non-metallic
Name: Section # 5.
This is basalt: Is it: Igneous or Sedimentary or Metamorphic Is it: Intrusive or Extrusive Is it: Felsic or Intermediate or Mafic or Ultramafic What is its texture: ____________________ What minerals would you expect to be in this rock: 6.
This is rhyolite: Is it: Igneous or Sedimentary or Metamorphic Is it: Intrusive or Extrusive Is it: Felsic or Intermediate or Mafic or Ultramafic What is its texture: __________________ What minerals would you expect to be in this rock: 7.
This is diorite: Is it: Igneous or Sedimentary or Metamorphic Is it: Intrusive or Extrusive Is it: Felsic or Intermediate or Mafic or Ultramafic What is its texture: ___________________ What minerals would you expect to be in this rock: 8.
This is perioditite: Is it: Igneous or Sedimentary or Metamorphic Is it: Intrusive or Extrusive Is it: Felsic or Intermediate or Mafic or Ultramafic What is its texture: ___________________ What minerals would you expect to be in this rock:
Name: Section # 9.
This is a conglomerate: Is it: Igneous or Sedimentary or Metamorphic Is it: Clastic or Biochemical or Chemical What is the dominant grain size: _______________ Possible depositional environment: ________________ 10.
This is limestone: Is it: Igneous or Sedimentary or Metamorphic Is it: Clastic or Biochemical or Chemical What is the dominant grain size: _______________ Possible depositional environment: ________________ 11.
This is bituminous coal: Is it: Igneous or Sedimentary or Metamorphic Is it: Clastic or Biochemical or Chemical What is the dominant grain size: _______________ Possible depositional environment: ________________ 12.
This is a shale: Is it: Igneous or Sedimentary or Metamorphic Is it: Clastic or Biochemical or Chemical What is the dominant grain size: _______________ Possible depositional environment: ________________
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Name: Section # 13.
This is a marble: Is it: Igneous or Sedimentary or Metamorphic Was it created by lithostatic or differential pressure? Foliated or Non-foliated What is the parent rock: ______________ 14.
This is gneiss: Is it: Igneous or Sedimentary or Metamorphic Was it created by lithostatic or differential pressure? Foliated or Non-foliated What is the parent rock: ______________ 15.
List five properties used to identify minerals: 16.
Which mineral has a greater density, Galena or Corundum. 17.
Igneous rocks which cool at or near the surface typically have all of the following textures except: a.
Vesicular b.
Glassy c.
Aphanitic d.
Phaneritic
Name: Section # 18.
In igneous rocks the texture is primarily a function of: a.
Mineralogy b.
Cooling rate c.
Melting temperature d.
Presences or absence of mafic rock 19.
Mafic rocks are composed of a greater percentage of which two elements when compared to felsic rocks? 20.
As magma cools
, at about what temperature does Pyroxene begin
to crystalize? 21.
The White Cliffs of Dover are composed mainly of a soft white very fine-grained textured sedimentary rock, composed primarily of skeletal remains of microscopic plankton whose skeletal remains sank to the bottom of the ocean during the Cretaceous. This sedimentary rock is known as: 22.
Limestone caves can form when slightly acidic
rain water and / or ground water moves through limestone bedrock. This is an example of: a.
Wind erosion b.
Water erosion c.
Chemical weathering 23.
Are you more likely to find fine silty sediments at the bottom of quick moving mountain stream, or in a river delta near the sea?
Name: Section # 24.
The feature in the photo below was likely produced through: a.
Wind erosion b.
Water erosion c.
Chemical weathering 25.
Shale that has been transformed to a metamorphic rock through regional metamorphism is likely to now be: a.
Serpentine b.
Marble c.
Hornfels d.
Slate 26.
A sandstone when exposed to contact metamorphism would be transformed to: a.
Serpentine b.
Gneiss c.
Hornfels d.
Quartzite 27.
A predominantly black rock with brown streaks and bits of visible charcoal could be all of the below except
: a.
Peat b.
Lignite c.
Bituminous Coal d.
Anthracite Coal 28.
Is a metamorphic rock with greenschist facies transformed under low pressure and low temperature likely to contain hornblend? ( YES or NO )
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Name: Section # 29.
Find the Epicenter of the earthquake presented below. Data:
Name: Section # City p-wave arrival time s-wave arrival time Lag Time Distance from City Eureka Elko Las Vegas
Name: Section # 30.
Your original soil sample had a dry weight of 30 grams. After adding the soil to the sedimentation cylinder, your 40 sec hydrometer reading was 12 grams, and the two hour reading was 4 grams. What are the percentages in each particles size category? What is the soil texture type?
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Name: Section # 31.
Draw elevation contours at an intrevel of 20m. hint: Your first contour should be 120m. The next one should be 140m.
Name: Section # 32.
Use the circle below as a globe. Draw in the dominant wind directions? Where do you find deserts? Rainforests?
Name: Section # 33.
Draw in the Thermohaline Circulation current. What drives this current?
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