Asebter amenzawi

Ddur n yismilen, iẓra i d-iɣellin seg yigenni, deg tlalit n tuder ɛerḍen ad as-d-alsen yimnuda

PARIS – Ayen i yes-s d-glan yismilen neɣ iẓra imeqranen i d-iɣellin seg yigenni, kkaten Takurt n wakal-a ideg nedder, azal tura n 4 imelyaren n yiseggasen zemren ad ilin kkin s uḥric ameqran deg tlalit n tudert deg umtiweg-a aẓerwal, i d-nnan yimnuda ijapuniyen. Imussanen-a, i d-isemlen ass n larebɛa agmuḍ n yimahilen-nsen deg usarag n géochimie Goldschmidt 2015 deg Pṛag, ulsen-as-d i wamek i d-teḍra.

Sxelṭen imuɣas iminiyen, aman igersen d yiwen n ’’silicate’’ unfen-as deg teẓɣelt n -196 tfesniwin. Akk iɛeqqaren yettilin deg usmil (aẓru-nni), am wakken i d-wwin ttbut tufɣiwin tineggura ɣer tallunt.

Smersen yimnuda yiwen n lgaz akken ad alsen i uɣlay-nni s tekriḍt n usmil (aẓru) ɣer tqaɛet. Sakin, kra imuɣas-nni uɣalen d iɛeqqaren iɣef d-ttinin belli d nitni i ‘’tiḥjuṛin timezwura n tudert’’.

‘’Amahil-a yemla-d belli teṣmeḍ n usmil mi ara d-yaweḍ s akal yurar tamlilt neɣ ddur amezwaru deg tlalit n yiɛeqqaren’’, i d-yenna Haruna Sugahara, n Tnegga tajapunit i tussna d tesnatwilt n yillel d wakal (JAMSTEC), i d-udren deg yiwen n ulɣu.

‘’Aɣlay n yismilen, deg waṭas n tikkal, tcuddunt ɣer ungar amatu n wid yedren deg umtiweg’’, i d-yesmekta, d lmeɛna ɣef ungar n yidinuẓuren i d-yeḍran azal tura n 66 imelyunen n yiseggasen. ‘’Maca imahilen-a mlan-d belli ɛawnen’’ akken ad tlal tudert ɣef umtiweg n wakal, i yerna yenna-d.