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Geology Lab Final Exam With 100% Correct Answers

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Obsidian Q: The textural term for this specimen is: a. porphyritic b. phaneritic c. aphanitic d. pegmatitic e. glassy - correct answers Rock class: igneous A: glassy Skeletal limestone Q: The sedimentary structure exhibited by this specimen: a. ripple marks b. fossils c. foliation d. breccia fragments - correct answers Rock class: Sed A: fossils gneiss Q: This rock exhibits: a. flat planar bedding b. folding / banding c. schistose texture

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Institution
Geology Lab
Course
Geology Lab

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Geology Lab Final Exam With 100%
Correct Answers

Obsidian

Q: The textural term for this specimen is:

a. porphyritic

b. phaneritic

c. aphanitic

d. pegmatitic

e. glassy - correct answers ✔✔Rock class: igneous

A: glassy



Skeletal limestone

Q: The sedimentary structure exhibited by this specimen:

a. ripple marks

b. fossils

c. foliation

d. breccia fragments - correct answers ✔✔Rock class: Sed

A: fossils



gneiss

Q: This rock exhibits:

a. flat planar bedding

b. folding / banding

c. schistose texture

, d. fine grained sand - correct answers ✔✔Rock class: Meta

A: flat planar bedding



Pumice

Q: Which statement about this specimen is TRUE?

a. it has numerous fossils

b. it has a pegmatitic texture

c. it exhibits cross-bedding

d. it has foliation

e. it contains numerous vesicles - correct answers ✔✔Rock class: Sed

A: it contains numerous vesicles

Lightweight



Arkose

Q: Which statement most correctly describes this specimen?

a. its frothy texture indicates a volcanic origin

b. it is composed mainly of quartz and feldspar grains

c. it has a porphyritic texture

d. it is foliated

e. it contains numerous fossils - correct answers ✔✔Rock class: Sed

A: it is composed mainly of quartz and feldspar grains



Siltstone

Q: The grain size of this sample is mostly:

a. clay sized

b. coarse sand

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Institution
Geology Lab
Course
Geology Lab

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