Geological Time Scale

Question 1

an immeasurably or indefinitely long period of time; the largest unit of time.​

Answer 1

Eon

Question 2

a long and distinct period of history with a particular feature or characteristic; a unit of time shorter than eon but longer than period.

Answer 2

Era

Question 3

a portion of time in the life of a nation, civilization, etc. characterized by the same prevalent features or conditions​

Answer 3

Period

Question 4

an event or a time marked by an event that begins a new period or development​

Answer 4

Epoch

Question 5

species are diminished due to the following; environmental forces such as habitat fragmentation, climate change, natural disasters, pollution, overexploitation by humans. ​

Answer 5

Extinction

Question 6

very small life, First complex cells. Ending brings us first plants and animals

Answer 6

Proterozoic EON

Question 7

Weird wormy life, creepy crawling life

Answer 7

Paleozoic Era

Question 8

Dino life, or life that goes rawr

Answer 8

Mesozoic Era

Question 9

Furry life, flowers birds and bears yes.

Answer 9

Cenozoic Era

Question 10

Used to arrange geological events and the rocks they leave behind, in a sequence.

Answer 10

Relative Dating

Question 11

First to realize that the Earth’s crust contains a chronological history of geologic events

Answer 11

Nicholas Steno (1636-1686)​

Question 12

Relative Dating Methods​

Answer 12

Principle of Superposition​

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Principle of Horizontality​

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Principle of Lateral Continuity​

Question 13

Explain the three principles:
Principle of Superposition​
Principle of Horizontality​
Principle of Lateral Continuity​

Answer 13

Nice!

Question 14

Represents an interruption in the process of deposition of sediments.​

Answer 14

Unconformity

Question 15

Explain the 4 types of unconformity

Answer 15

-Nonconformity
-Angular unconformity
-Disconformity
-Paraconformity

Question 16

What are atoms of an element that have different numbers of neutrons?​

Answer 16

Isotopes​

Question 17

Radioactive isotope

Answer 17

– also called parent isotope
– radioactive decay happens when it breaks down into a new isotope called ​daughter isotope

Question 18

Is the process of determining the absolute age of a sample based on the ratio of parent isotope: daughter isotope

Answer 18

Radiometric Dating