SCARA GEOLOGICA A TIMPULUI (1998)

EON

ERA

PERIOADA

 

 

 

 

 

Fanerozoic

(540 M.a. – prezent)

 

 

Cenozoic

(65 M.a. - prezent)

Cuaternar

(1,8 M.a. – prezent)

 

Tertiar

(65 – 1,8 M.a.)

Neogen

(23,8 – 1,8 M.a.)

Paleogen

(65 – 23,8 M.a.)

 

Mezozoic

(248 - 65 M.a.)

Cretacic

(144 - 65 M.a.)

Jurasic

(206 – 144 M.a.)

Triasic

(248 – 206 M.a.)

 

 

 

 

Paleozoic

(540 - 248 M.a.)

 

Permian

(290 – 248 M.a.)

Carbonifer

(354 – 290 M.a.)

Devonian

(417 – 354 M.a.)

Silurian

(443 – 417 M.a.)

Ordovician

(490 – 443 M.a.)

Cambrian

(540 – 490 M.a.)

 

 

 

 

 

Precambrian

(4500 - 570 M.a.)

 

 

Proterozoic

(2500 - 570 M.a.)

Superior

(900 -570 M.a.)

Mediu

(1600 - 900 M.a.)

Inferior

(2500 - 1600 M.a.)

 

Arhaic

(3800 - 2500 M.a.)

Superior

(3000 – 2500 M.a.)

Mediu

(3400 – 3000 M.a.)

Inferior

(3800 –3400 M.a.)

Priscoan (Hadean)

(4500 - 3800 M.a.)

 

Sources for nomenclature and ages: Primarily from Gradstein F. and Ogg J., 1996, Episodes, v.19, nos.1&2, with Cambrian and basal Ordovician ages adapted from Landing E., 1998, Canadian Journal of Earth Sciences, v.35, p.329-338, and Davidek K. And others, 1998, Geological Magazine, V.135, p.305-309. Cambrian age names from Palmer A.R.,1998, Cnadian Journal of Earth Sciences, v.35, p.323-328