| Zanaa | Yeroo | Taateewwan Ji'ooloojii Gurguddoo Itoophiyaa |
|---|---|---|
| Precambrian | Waggoota biliyoona 4.5 hanga miliyoona 600 dura | Orogenesis, volcanism cimaa, folding, uumama basement complex rocks hunda caalaa durii. |
| Paleozoic | Waggoota miliyoona 600 hanga 250 dura | Denudation fi peneplanation bal'aa, uumama inselberg, rock formation dhabamuu (gap in rock records). |
| Mesozoic | Waggoota miliyoona 250 hanga 70 dura | Dacheen waljijjiiraan sinking fi uplifting ta'uu, marine transgression fi regression, uumama sedimentary rock. |
| Cenozoic | Waggoota miliyoona 70 dura hanga ammaa | Uplifting, Trappean basalt lava dhangala'uu, Rift Valley faulting, Quaternary volcanism. |
Yoom akka itti fayyadamtu
Kardii kanatti fayyadamuun tartiiba zanaalee ji'ooloojii fi taateewwan gurguddoo Gaafa Afrikaa keessatti raawwataman adda baasi.
Of eeggadhu
Bara Paaliyoozoyikii keessa dhiqamuun qofti waan tureef Itoophiyaa keessatti uumamni dhagaa hin turre.
Grade 9 Geography, fuula 2-36 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e