Mesoarchean - Wikipedia
The Mesoarchean (/ ˌmiːzoʊ.ɑːrˈkiːən, ˌmɛzoʊ -/ MEE-zoh-ar-KEE-ən, MEZ-oh-, also spelled Mesoarchaean) is a geologic era in the Archean Eon, spanning 3,200 to 2,800 million years ago, which contains the first evidence of modern-style plate subduction and expansion of microbial life.
Geologic time scale - Wikipedia
Mesoarchean Era/Erathem (3490–2780 Ma) Vaalbaran Period/System ( 3490–3020 Ma) – based on the names of the Kaapvaal (Southern Africa) and Pilbara (Western Australia) cratons , to reflect the growth of stable continental nuclei or proto- cratonic kernels.
Mesoarchean Era - Geology Page
2014年1月22日 · The Mesoarchean is a geologic era within the Archean, spanning 3,200 to 2,800 million years ago. The period is defined chronometrically and is not referenced to a specific level in a rock section on Earth. Fossils from Australia show that stromatolites have lived on Earth since the Mesoarchean.
Geological Eras In World History - WorldAtlas
2017年4月25日 · The Mesoarchean (3.2-2.8 billion years ago) era was the beginning of the Pongola glaciation on earth, which occurred in what is now South Africa. This was the first climate disaster on earth, as ice sheets covered areas of Swaziland and South Africa.
Geologic Time Scale: A List of Eons, Eras, and Periods
2020年2月28日 · Unlike the Hadean, the Archean eon is divided into eras: the Eoarchean, Paleoarchean, Mesoarchean, and Neoarchean. The Neoarchean, which began about 2.8 billion years ago, was the era in which oxygenic photosynthesis began.
Mesoarchaean - Simple English Wikipedia, the free encyclopedia
The Mesoarchaean (Mesoarchean) is the third geological era in the Archaean eon. It began 3.2 billion years ago, and ended 2.8 billion years ago. [ 1 ] Before the Mesoarchaean era was the Palaeoarchaean era.
Mesoarchean - mindat.org
First stromatolites (probably colonial cyanobacteria). Oldest macrofossils. Humboldt Orogeny in Antarctica. Blake River Megacaldera Complex begins to form in present-day Ontario and Quebec, ends by roughly 2696 Ma.