Tarihin ilimin ƙasa da duwatsu
Tarihin ilimin ƙasa da duwatsu ya biyo bayan manyan abubuwan da suka faru a duniyar da ta gabata dangane da sikelin lokacin ƙasa, tsarin ma'aunin lokaci bisa la'akari da nazarin dutsen duniyoyin ( stratigraphy ).[1] Duniya ta samu kimanin shekaru biliyan 4.54 da suka gabata ta hanyar tarawa daga hasken rana nebula, ƙurar ƙura da iskar gas da ta rage daga samuwar Rana, wanda kuma ya halicci sauran Tsarin Solar.[2]
 tarihin ilimin ƙasa da duwatsu | |
|---|---|
periodization (en)  da chronostratigraphic classification scheme (en) | |
| Bayanai | |
| Ƙaramin ɓangare na | technical standard (en) |
| Karatun ta | chronostratigraphy (en) , geochronology (en) da biostratigraphy (en) |
| Shafin yanar gizo | stratigraphy.org… |
| Standards body (en) | International Union of Geological Sciences (en) da International Commission on Stratigraphy (en) |
Precambrian
Precambrian ya ƙunshi kusan 90% na lokacin ilimin ƙasa. Yana ƙaruwa daga shekaru biliyan 4.6 da suka gabata zuwa farkon zamanin Cambrian (kusan 541 Ma ). Ya ƙunshi eons uku, Hadean, Archean, da Proterozoic.[3]
Wannan Muƙalar guntuwa ce: tana buƙatar a inganta ta, kuna iya gyara ta.
Manazarta
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