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In the Badlands near Drumheller, Alberta, erosion has exposed the K-Pg boundary. Credit: Glenlarson.

Mesozoic geochronology is an article and a lecture from the school of geology.

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Quiz

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1 True or False, Ammonite zone duration estimates are made by counting the interpreted precession cycles.

TRUE
FALSE

2 Geochronology is the science of applying dates in the past to?

3 Yes or No, The Mesozoic is a younger period than the Cenozoic.

No
Yes

4 The Palaeozoic, Mesozoic and Cenozoic are eras of the?

eon.

5 Complete the text:

Match up the geological time unit with the title:
Holocene - A
Gelasian - B
Paleogene - C
Triassic - D
Devonian - E
Archean - F
Precambrian - G
period of the Mesozoic

.
supereon

.
age

.
eon

.
epoch

.
period of the Paleozoic

period

.

6 Orbitally forced cyclicity includes?

Jupiter-Venus conjunctions
chemical and physical proxies from sedimentary rock sequences
palaeoclimatic studies
marine Cenozoic sequences
meteorite impacts from the asteroid belt
spectral analysis of the magnetic susceptibility (MS) record

7 The GSSP section near El Kef contains?

one main feature that allows for a direct correlation of this marine section with continental sections
the base of the Danian Stage
the base GSSP for the Paleogene
the base GSSP for the Tertiary
the base GSSP for the Paleocene
the Ir anomaly at the base of the Boundary Clay
the base GSSP for the Cenozoic

8 Which of the following is out of reverse geochronological order?

Late Cretaceous
Early Cretaceous
Middle Triassic
Scythian
Anisian
Aegean

9 What phenomena may be associated with K/Pg boundary?

clay in the Geulhemmergroeve tunnels near Geulhem, The Netherlands
the Badlands near Drumheller, Alberta
the cliffs at Stevns
an extensive osmium layer
traces of Fe-Ni alloys
Trinidad Lake State Park, Colorado, USA

10 Yes or No, Hindeodus parvus is now recognized as the index fossil, occurring in the Zone above the P-T boundary.

Yes
No

11 The end-Permian mass extinction coincided with a rapid temperature rise to exceptionally high values in the Early Triassic that were inimical to life in equatorial latitudes and suppressed ecosystem

.

12 The Permian/Triassic boundary occurs at 248.2 ± 4.8?


Hypotheses

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Main resource: Hypotheses
  1. Tephra layers may be the best geochronometer.

See also

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[edit | edit source]

{{Archaeology resources}}

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