- The
Orosirian Period ( /ˌɒroʊˈsɪəriən/;
Ancient Gr****: ὀροσειρά, romanized: oroseirá,
meaning "mountain range") is the
third geologic period in the Paleoproterozoic...
-
subdivided into four
geologic periods,
namely the Siderian, Rhyacian,
Orosirian and Statherian.
Paleontological evidence suggests that the Earth's rotational...
- 019/2.020
billion years (± 2-3
million years) old.
which places it in the
Orosirian Period of the
Paleoproterozoic Era. It is the
second oldest universally...
- 114–1,995 Rhyacian-
Orosirian Not
generally regarded as a supercontinent,
depending on
definition Atlantica 1,991–1,124
Orosirian-Stenian Not generally...
-
repeatedly reactivated from the
Neoproterozoic to the Mesozoic. c. 2,050 Ma –
Orosirian Period starts.
Significant orogeny in most continents. c. 2,023 Ma – Vredefort...
- Ga)
Calymmian (1.4–1.6 Ga)
Paleoproterozoic (1.6–2.5 Ga)
Statherian (1.6–1.8 Ga)
Orosirian (1.8–2.05 Ga)
Rhyacian (2.05–2.3 Ga)
Siderian (2.3–2.5 Ga)...
- −1660 — – −1640 — – −1620 — – −1600 — – P a l e o p r o t e r o z o i c M ♇
Orosirian Statherian Calymmian Events of the
Statherian Period. Axis scale:...
- Ga)
Calymmian (1.4–1.6 Ga)
Paleoproterozoic (1.6–2.5 Ga)
Statherian (1.6–1.8 Ga)
Orosirian (1.8–2.05 Ga)
Rhyacian (2.05–2.3 Ga)
Siderian (2.3–2.5 Ga)...
-
Mesoarchean Neoarchean Proterozoic Paleoproterozoic Siderian Rhyacian Orosirian Statherian Mesoproterozoic Calymmian Ectasian Stenian Neoproterozoic Tonian...
- Ga)
Calymmian (1.4–1.6 Ga)
Paleoproterozoic (1.6–2.5 Ga)
Statherian (1.6–1.8 Ga)
Orosirian (1.8–2.05 Ga)
Rhyacian (2.05–2.3 Ga)
Siderian (2.3–2.5 Ga)...
