Pākaukau Geochronological

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Ua ana ʻia ka manawa o ka mōʻaukala o ka Honua e kahi pālākiō geochronological kūikawā, i loaʻa nā wā o ka honua a me nā miliona o nā makahiki. Kūpono nui nā mea hōʻike a pau o ka papa ʻaʻa a ʻae ʻia i ka kaiāulu ʻepekema i ka pae honua. Ma ka laulā, ua hoʻi ka makahiki o ko mākou honua i kahi o 4.5-4.6 biliona mau makahiki. ʻAʻole i loaʻa nā minelala a me nā pōhaku o ia ʻano pilina ma ka lithosfer, akā ua hoʻoholo ʻia ka makahiki o ka Honua e nā hana mua i loaʻa i ka ʻōnaehana lā. ʻO kēia nā mea i loko o ka aluminika a me ka calcium i loaʻa ma Allende, ka meteorite mua loa i loaʻa ma kā mākou honua.

Ua lawe ʻia ka papa ʻaina geochronological i ke kenekulia i hala. ʻAe iā mākou e hoʻopaʻa i ka moʻaukala o ka Honua, akā ʻo ka ʻikepili i loaʻa iā mākou e hana i nā manaʻo a me nā laulā. ʻO ka pākaukau kahi ʻano periodization kūlohelohe o ka mōʻaukala o ka honua.

Nā Kumumanaʻo o ke kūkulu ʻana i kahi papa ʻaina geochronological

ʻO nā papa manawa nui o ka papa ʻaina Honua:

  • eon;
  • wā;
  • wā;
  • wā;
  • o ka makahiki.

Ua piha ka moʻolelo o ka Honua i nā hanana like ʻole. Hoʻokaʻawale ʻia ke ola o ka honua i nā manawa e like me Phanerozoic a me Precambrian, kahi i ʻike ʻia ai nā pōhaku sedimentary, a laila hānau ʻia nā meaola liʻiliʻi, ua hoʻokumu ʻia ka hydrosfer a me ke kumu o ka honua. ʻO nā Supercontinents (Vaalbara, Colombia, Rodinia, Mirovia, Pannotia) ua kū pinepine a wāwahi ʻia. Eia kekahi, ke ʻano o ka lewa, nā ʻōnaehana mauna, nā ʻāina nui i hoʻokumu ʻia, ua hele a make nā meaola like ʻole. Ua kū nā wā o nā pōʻino a me nā glaciations o ka Honua.

Ma muli o ka papa ʻaina geochronological, ua hōʻike ʻia nā holoholona multicellular mua ma ka honua ma kahi o 635 miliona mau makahiki i hala aku nei, dinosaurs - 252 miliona, a me nā holoholona o kēia au - 56 miliona mau makahiki. A ʻo nā kānaka hoʻi, ua ʻike ʻia nā ʻaka nunui mua ma kahi o 33.9 miliona mau makahiki i hala aku nei, a me nā kānaka o kēia au - 2.58 miliona mau makahiki i hala. Me ka helehelena o ke kanaka e hoʻomaka ai ka wā anthropogenic a i ʻole Quaternary ma ka honua, e hoʻomau nei a hiki i kēia lā.

ʻO ka hola hea kā mākou e noho nei i kēia manawa

Inā mākou e hoʻokalakupua i ka hou o ka Honua mai ke kuana o ka papa ʻaina geochronological, a laila ke ola nei mākou:

  • Phanerozoic eon;
  • i ke au Cenozoic;
  • i ka manawa anthropogenic;
  • i ka wā o ka Anthropocene.

I kēia manawa, ʻo nā poʻe kekahi o nā kumu nui i ke kaiaolaola o ko mākou honua. Pili ka pono o ka Honua iā mākou. ʻO ka hōʻino ʻana o ke kaiapuni a me nā ʻano pōpilikia āpau ke hiki i ka make ʻana o ka poʻe wale nō, akā me nā meaola ʻē aʻe o ka "ao polū".

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E nānā i ka wikiō: Hawaiian Word of the Day: Kawele Pepa (Nowemapa 2024).