questions 1

Question 1

periods of cenozoic

Answer 1

paleogene, neogene, quaternary

Question 2

what happens to P in anoxic waters?

Answer 2

more P is recycled and the C/P burial ratio increases so more C to be buried

Question 3

when was the end Cretaceous extinction?

Answer 3

65 Ma

Question 4

what did Milutin Milankovitch do?

Answer 4

pioneered theory on orbital variations as the driver of glacial-interglacial cycle

Question 5

what is MIS 3?

Answer 5

devensian

Question 6

what is MIS 1?

Answer 6

holocene

Question 7

archaeological timeline

Answer 7

palaeolithic, neolithic, Bronze Age

Question 8

first trees

Answer 8

385 Ma Devonian

Question 9

first vascular land plants

Answer 9

~ 430 Ma

Question 10

end permian extinction

Answer 10

251 Ma

Question 11

what did Louis Agassiz do?

Answer 11

principle of ice age theory, glacial and interglacial cycle

Question 12

equation for oxidative weathering

Answer 12

CH2O (weather) + O2 -> CO2 + H2O

Question 13

what is MIS 5e?

Answer 13

ipswichian/ Eemian

Question 14

how old is the oldest zircon?

Answer 14

4.4 Ga

Question 15

when was the Cambrian explosion?

Answer 15

~ 540 Ma

Question 16

geological timeline

Answer 16

quaternary, pleistocene, holocene

Question 17

2 forms of carbon burial

Answer 17

• calcium carbonate (no O2)

- organic carbon (produced s a source of O2)

Question 18

eras in Phanerozoic timeline

Answer 18

paleozoic, mesozoic, cenozoic

Question 19

what do ice core records provide?

Answer 19

• high resolution, annual snow bands
• analyses of ice and air bubbles trapped inside
• records of ppt chemical composition
• greenhouse gas conc

Question 20

when was the late heavy bombardment?

Answer 20

4.1-3.85 Ga

Question 21

how old are the oldest rocks?

Answer 21

4.04 Ga

Question 22

when was the Paleocene-eocene thermal maximum?

Answer 22

55 Ma