Danakil Alps
| Danakil Alps | |
|---|---|
| General information | |
| Gu mafi tsayi |
Nabro Volcano (en)  |
| Height above mean sea level (en) | 2,218 m |
| Labarin ƙasa | |
 | |
| Tsarin Daidaiton Labarin Kasa | 12°56′13″N 42°27′10″E / 12.9369°N 42.4528°E |
| Bangare na |
Great Rift Valley (en) |
| Kasa | Eritrea da Habasha |
| Territory |
Yankin Afar da Southern Red Sea Region (en) |
Tsawon tsaunukan Danakil wani yanki ne mai tsaunuka a Habasha da Eritriya mai tsayi sama da mita 1000 kuma fadinsa ya bambanta tsakanin kilomita 40 zuwa 70. An san yankin a yaren Afara da Arrata. Tsakanin tsaunuka suna kan tekun Kudu ta Bahar Maliya zuwa gabas da Damuwar Danakil kuma suna raba shi da teku[4]. Tsakanin tsaunuka suna da asymmetric a ɓangaren giciye tare da kwatankwacin ɓacin rai mai laushi da ke fuskantar Tekun Bahar Maliya da kuma mummunan lahani a gefen ƙasa.[1]
A arewacin tsaunukan tsaunuka dutsen ginshiki bai cika girma ba kuma akwai gine-gine masu aman wuta da yawa, kamar waɗanda ke samar da Range na Nabro Volcanic Range. Manyan gine-ginen Nabro Volcanic Range sune Mallahle, Nabro, da Dubbi. Wurin dutsen mai aman wuta ya kai arewa maso yamma zuwa Tekun Bahar Maliya, yana ƙarewa da dutsen mai aman wuta na Kod Ali a bakin teku..[2]
An yanke Danakil Alps daga teku tun daga marigayi Pleistocene.[3]
Rubuce-rubuce
[gyara sashe | gyara masomin]A ilimin kasa, ana siffanta wadannan tsaunuka a matsayin doki kuma a wasu lokuta ana kiran su Danakil Horst ko Danakil Block. An samo su ta hanyar ɓarna a kan ƙasa wanda ya faru tun zamanin Miocene. Akwai dutsen ginshiki na Precambrian da ke ƙarƙashin yankin kuma a bakin tekun Eritrea Precambrian da Mesozoic duwatsu an fallasa su.] Dutsen Antalo a cikin tsaunukan Danakil yana da kauri sosai ga ƙahon Afirka, yana da zurfin zurfin mita 1,000 (3,300 ft) cikin zurfin, yana nuna cewa yankin ya kasance a matsayin magudanar ruwa da kuma faɗuwar ƙasa kafin magudanar ruwa. Dutsen ginshiƙan tuddai ya zama an lulluɓe shi da basalt ambaliya tun zamanin Oligocene. Sashin da aka riga aka yi rift a cikin Danakil Alps ya wuce mita 4,000 (13,000 ft), wanda ya fi wancan zuwa arewa, yana nuna ci gaban gabar Tekun Indiya a lokacin Mesozoic.[4]
Ci gaba
[gyara sashe | gyara masomin]Kimanin shekaru miliyan 20 da suka gabata an bude yankin tsagaita wuta na Afar. Wannan ya haifar da tsaunukan tsaunuka da suka balle daga tudun Habasha wanda a baya aka jingina su zuwa gabas/ arewa maso gabas. Ma'auni na Paleomagnetic sun nuna cewa, tun daga farkon Miocene, tsaunukan suna jujjuya agogo baya da digiri 20-30 daga ainihin matsayinsu na tsawon shekaru miliyan 11 sakamakon budewar Tekun Bahar Maliya. A cikin shekaru miliyan da suka gabata, yaduwa ya ci gaba da yaduwa zuwa yamma daga Tekun Aden zuwa Tekun Tadjoura da kuma cikin yankin Afar ta barauniyar Asal-Ghoubbet. Wannan iyakar faranti mai aiki tana ci gaba a gefen yamma na Tushen Danakil, kuma tana haɗe zuwa Bahar Maliya a Tekun Zula. Abubuwan shimfidawa na ɓangarorin nahiya a cikin Alps na Danakil an kiyasta sun kai β = ~ 2.5[4]
- ↑ Empty citation (help)
- ↑ Pierre Wiart; Clive Oppenheimer (2005). "Final desiccation of the Afar Rift, Ethiopia". Science. 67 (2): 99–115. doi:10.1007/s00445-004-0362-x. S2CID 129124049.
- ↑ Enrico Bonatti; Cesare Emiliani; Göte Ostlund; Harold Rydell (1971). "Final desiccation of the Afar Rift, Ethiopia". Science. 172 (3982): 468–469. doi:10.1126/science.172.3982.468. PMID 17758081. S2CID 34061051.
- ↑ 4.0 4.1 (A.W. ed.). Missing or empty
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