The Paleoarchean (/ˌpeɪlioʊ.ɑːrˈkiːən, ˌpæl-/ PAY-lee-oh-ar-KEE-ən, PAL-), also spelled Palaeoarchaean (formerly known as the early Archean), is a geologic...
12 KB (1,045 words) - 11:07, 3 March 2024
million years, from the end of the Hadean Eon 4031 Mya to the start of the Paleoarchean Era 3600 Mya. The beginnings of life on Earth have been dated to this...
11 KB (876 words) - 15:36, 15 March 2024
Archean Eon (2.5–4 Ga) Neoarchean (2.5–2.8 Ga) Mesoarchean (2.8–3.2 Ga) Paleoarchean (3.2–3.6 Ga) Eoarchean (3.6–4 Ga) Hadean Eon (4–4.6 Ga) ka = kiloannum...
113 KB (11,640 words) - 11:25, 13 May 2024
ago, and the Eoarchean, starting 4 billion years ago, and part of the Paleoarchean era, starting 3.6 billion years ago, of the Archean eon. This period...
13 KB (1,261 words) - 09:15, 7 March 2024
(one of the earliest forms of life on Earth) have been dated to the Paleoarchean era approximately 3.5 billion years ago. Marble Bar has been described...
20 KB (2,011 words) - 04:14, 26 March 2024
chronostratigraphic erathem. There are ten defined eras: the Eoarchean, Paleoarchean, Mesoarchean, Neoarchean, Paleoproterozoic, Mesoproterozoic, Neoproterozoic...
172 KB (9,469 words) - 09:04, 29 May 2024
Precambrian Hadean (or hadaeozoic) Archean (or archaeozoic) Eoarchean Paleoarchean Mesoarchean Neoarchean Proterozoic Paleoproterozoic Siderian Rhyacian...
30 KB (3,118 words) - 18:11, 3 June 2024
– 0 — Precambrian Hadean Archean Proterozoic Phaner ozoic Eoarchean Paleoarchean Mesoarchean Neoarchean Paleoproterozoic Mesoproterozoic Neoproterozoic...
28 KB (3,049 words) - 19:59, 5 June 2024
Archean Eon (2.5–4 Ga) Neoarchean (2.5–2.8 Ga) Mesoarchean (2.8–3.2 Ga) Paleoarchean (3.2–3.6 Ga) Eoarchean (3.6–4 Ga) Hadean Eon (4–4.6 Ga) ka = kiloannum...
68 KB (7,424 words) - 03:13, 4 June 2024
Timeline of natural history (section Paleoarchean Era)
Kaapval craton begins: old tonaltic gneisses laid down c. 3,600 Ma – Paleoarchean Era starts. Possible assembly of the Vaalbara supercontinent; oldest...
64 KB (7,668 words) - 05:29, 14 May 2024