could you please help me to answer the questions in the upload file.
and if you have any question feel free to ask!!
Geology 102 Final Lab Exam
Due: Upload your answers onto Canvas by Thursday, 12/7 /17 at 4:pm
Part I: Rock and Rock Feature Identification-See directions on the next page.
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Geology 102 Final Lab Exam
Due: Upload your answers onto Canvas by Thursday, 12/7 /17 at 4:pm
Part I: Rock and Rock Feature Identification
For each rock sample shown on the previous page:
a) Identify as igneous, sedimentary or metamorphic.
b) Accurately name and describe one rock feature that supports your answer for a). Refer to your lab workbook for the
correct terms for igneous, sedimentary and metamorphic rock features.
c) Give the specific igneous, sedimentary or metamorphic rock name.
d) Accurately name and describe one feature that supports your answer for c). Refer to your lab workbook for the
correct terms for igneous, sedimentary and metamorphic rock features.
Sample
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a) Rock Type b) Supporting Feature & Description c) Rock Name d) Supporting Feature & Description
Geology 102 Final Lab Exam
Due: Upload your answers onto Canvas by Thursday, 12/7 /17 at 4:pm
Part I: Rock and Rock Feature Identification Continued
Sample
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a) Rock Type b) Supporting Feature & Description c) Rock Name d) Supporting Feature & Description
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Part II: Relative Age Dating -See directions on the next page.
Geology 102 Final Lab Exam
Due: Upload your answers onto Canvas by Thursday, 12/7 /17 at 4:pm
Part II: Relative Age Dating
a) For the cross-section of rock layers shown on the previous page, write the letters in the correct order to tell the
sequence of events from oldest (first in the sequence) to youngest (last in the sequence).
Oldest ______________________________________________________________________________________________________Youngest
b) Layers U-Z are unconformities. Give the specific type of unconformity for each layer.
U ___________________________________
X____________________________________
V ____________________________________
Y ____________________________________
W ___________________________________
Z _____________________________________
Part III: Radiometric Age Dating
1) A piece of dead wood from a forest has 1/32 of C 14 remaining. How old is the wood? (C14 Half Life is 5730 years)
2) Rock X contains 31/32 of the daughter product of U238 . How old is rock X? (U238 Half Life is 4.5 billion years)
3) If Rock X is 2,000,000 years old and contains has 1/16 of parent isotope “Z” what must the half life of parent
isotope Z be?
4) What is the half-life of isotope Z if a rock contains a parent isotope: daughter product ratio of 1:7 and the rock is
9 million years old?
5) Rock Unit K (granite) in the cross section of Part II has 1 part U238 to 15 parts Pb 207. (U238 Half Life is 4.5
billion years) How old is this granite?
6) Rock Unit J (basalt) in the cross section of Part II has 12.5% K40 (K40 Half life 1.3 billion years). How old is this
basalt?
7) Based on the granite and basalt ages in the Part II cross section, Rock Unit A is older than __________ years but
younger than _____________ years.