Expert answer:GO141 Park University Introduction To Physical Geo

  

Solved by verified expert:I need the answers to questions in my Physical Geology class. I have attached a word document that has questions and pictures of various rocks and minerals. I need the answers to the questions on the worksheet.
unit_2_lab_worksheet.docx

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4.1 Rock Inquiry
A. REFLECT & DISCUSS Describe the rock below, where it may have formed, and how it may have formed.
B. REFLECT & DISCUSS Describe the rock below, where it may have formed, and how it may have formed.
4.2 What Are Rocks Made Of?
A. What is the difference between in situ mineral grains and detrital mineral grains?
B. REFLECT & DISCUSS Rocks are made of the materials listed below and described on page 115. Below each sample,
write the name of every kind of material it contains from the list below. Be prepared to compare your observations with
the observations of the other geologists.
Mineral grains (in situ) Clasts (detrital minerals)
Gravel Silt
Glass
Mineral grains (detrital) Clasts (rock fragments)
Sand
Bioclasts
Clay
1)
2)
3)
4)
5)
6)
7)
8)
9)
4.3 Rock-forming Minerals
A. REFLECT & DISCUSS Refer to FIGURE 4.3 (page 116) and identify each rock-forming mineral below. Write its name
below the picture. Be prepared to compare your observations with the observations of the other geologists.
4.4 What Is Rock Texture?
A. Review the following list of textures on page 117. Below each sample, write the name of every one of these
textures it contains.
Glassy
Vesicular
Fine-grained
Coarse-grained
Crystalline (heterogranular)
Crystalline (equigranular)
Clastic (angular)
Layered (flat)
Clastic (rounded)
Layered (foliated)
Bioclastic
Layered (folded)
Clastic (gravely, sandy, silty, clayey)
B. Reflect & Discus: Based on the texture(s) and composition of each of the rocks in part A, below each sample, write
whether you think it is igneous, sedimentary or metamorphic and why?
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