What do orange red or brown colours indicate in sedimentary rocks?
A) original deposition on a beach
B) deposition below water in a swamp or muddy estuary
C) an oxidizing environment to produce iron (ferric) oxides or hydroxides
D) high organic matter contents
Correct Answer:
Verified
Q3: What do dense crystalline rocks and shales
Q4: How do unconsolidated sediments originate?
A)by spontaneous decomposition
Q5: _ cement produces dark red and orange
Q6: Which type of sediment undergoes the most
Q7: Sedimentary rocks account for about what percentage
Q9: In what setting would you expect to
Q10: Hot regions having basins with limited input
Q11: How are cements formed in sedimentary rocks?
A)They
Q12: What percentage of the Earth's crust is
Q13: Which characteristic is absolutely necessary for a
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