Ala Dị larịị nke Biu

Plateau Biu bụ ugwu ugwu dị na ugwu ndịda anyanwụ Naijiria nwere ọtụtụ ugwu mgbawa na nso nso a. Ọ na-agụnye ihe dị ka puku ise nà narị abụọ km2 ma nwee nkezi elu nke narị asaa m (Puku abụọ na narị atọ ft) . Ala dị larịị dị n'agbata Oke Benue Basin na ndịda na Chad Basin n'ebe ugwu. Ebe dị elu bụ Wade Hill na nari asaa na iri asaa na isem ( puku abụọ narị ise na iri anọ na atọ ft) n'elu oke osimiri na Ugwu Wiga, na ihe karịrị narị asatọ m ( puku abụọ na nari isii ft) . Ala dị larịị bụ isi iyi nke ọtụtụ mmiri iyi nke osimiri Gongola, bụ nke gbutuola ọwa mmiri dị omimi. N'ebe ugwu ugwu ugwu ugwu ahụ na-eji nwayọọ na-aga na mbara ala Bauchi na Basin Chad.

Enwere ihe akaebe nke ọrụ mgbawa mgbawa na mpaghara n'oge Cretaceous, nke kwụsịrị ihe dị ka nde afọ 66 gara aga. ^[1] Otú ọ dị, e wuru ala dị larịị n'akụkụ njedebe nke Miocene, na nnukwu nkume bụ Pliocene basalt nke sitere na obere oghere ma ọ bụ nkwụsịtụ, wee gbasaa na akwa oyi akwa n'elu ebe sara mbara. A maliteghachiri ọrụ na Quaternary site na obere mmiri mmiri na-esi na obere cinder cones na-ejuputa na ndagwurugwu. Ọtụtụ n'ime basalt dị n'etiti asaa na nde abụọ afọ gara aga, mana ụfọdụ erughị otu nde afọ. Ala dị larịị na-agụnye ọtụtụ obere cones pyroclastic nke ihe mgbawa kpatara mgbe mmiri batara n'ime ala wee bata na lava ọhụrụ. Enwere ọtụtụ cones mgbawa ugwu echekwara nke ọma na-ebili n'elu Plateau n'akụkụ axis NNW-SSE na mpaghara mgbawa ugwu Miringa.

Ụfọdụ ndị ọkà mmụta banyere mbara ala na-eche na ọrụ mgbawa ugwu na Biu Plateau metụtara ọrụ dị n'ahịrị Cameroon nke dị na ndịda. ^[2]

Biu, Nigeria
Biu Emirate

Edensibia

↑ (1971) West Africa, Volume 25, Part 1. Taylor & Francis.
↑ K. RANKENBURG, J. C. LASSITER and G. BREY (2004). "The Role of Continental Crust and Lithospheric Mantle in the Genesis of Cameroon Volcanic Line Lavas: Constraints from Isotopic Variations in Lavas and Megacrysts from the Biu and Jos Plateaux". Journal of Petrology 46 (1): 169–190. DOI:10.1093/petrology/egh067.

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[1] (1971) West Africa, Volume 25, Part 1. Taylor & Francis.

[Rankenburg2004-2] K. RANKENBURG, J. C. LASSITER and G. BREY (2004). "The Role of Continental Crust and Lithospheric Mantle in the Genesis of Cameroon Volcanic Line Lavas: Constraints from Isotopic Variations in Lavas and Megacrysts from the Biu and Jos Plateaux". Journal of Petrology 46 (1): 169–190. DOI:10.1093/petrology/egh067.

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