Slide 1 Comments2Fossils: Any evidence of earlier life preserved in rock.
Formation of Fossils:
Slide 4 Comments5Relative Time vs.
Relative Time:
Slide 6 Comments74 Characteristics of Index Fossils: 1) They are easily recognizable (unique).
2) They are abundant.
Relative Time:
Slide 9 Comments10Gaps in Relative Time: Unconformity: Indicates where layers of rock are missing in the strata sequence. Counting Varves (a yearly deposited sediment).Deposits in glacial lakes during last ice age.
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