yolith

oru yolith (greak "eos", "doonn", "lithos", kallu ennivayil ninnu) oru naap cheytha flint nodyoolaanu. ekkaalathum purathana silaayudharaaya karakaushala vasthukkal aanennu karuthappettirunna eeolithukal ippol jiophaakts (glaciation polulla poornnamaayum prakrithidatha bhoomishaasthra prakriyakalaal uthppaadippikkappedunna kallu sakalangal) aanennu vishwasikkappedunnu.
1885-ll engleesh amachwar prakrithishaasthranjanum puraavastu gaveshakanumaaya benchamin haarisan kentil aadyathe yolithukal shekharichu (1892 vare jeey. alan braun). 1891ll sarr joseph prestwich haarisante kandethalukal prasidheekarichu, pleosene kaalaghattatthil ninnulla eeyolidhukal kroorathayode nirmmicha upakaranangalaanennu pothuve amgeekarikkappettirunnu. irupathaam noottaandinte thudakkathil eeyolithukalude kooduthal kandethalukal-jeey.-yude chuvanna cragg roopeekaranathilum kizhakkan aamgliyayude norvichu cragg roopeekaranathilum. reed moyer, iii. reey lankesterum kondinental europilum aime luis rutot echu. ariyappedunna ettavum pazhaya phosilukalkku munbu aaa pradeshangalil manushyavaasamundaayirunnathi thelivaayi clatsh kanakkaakkappettirunnu. engleesh kandethalukal pilttdaun maante vyaja avashishtangal sweekarikkaan sahayichu.
yolithukal valare asamskrithamaayathinaal, avaa mannolippinte swaabhaavika prakriyakalil ninnu verthirichariyaan kazhiyaathavayaanenna aashanka uyarnnuvannu. franch puraavastu gaveshakanaaya marsellin bowl 1905-ll yolithukalude artifactual nilaykkethire oru vaadam prasidheekarichu, flintukalil pareekshanangal nadatthiya sesham saamuval hasleddin vaaran boulinte kaazhchappaadine sthireekarichu.
ekadesham moonnu pathittaandolam eee charcha thudarnnenkilum, yolithukalude poornnamaayum swaabhaavika uthbhavam soochippikkunna kooduthal kooduthal thelivukal kandethi. ithu, kizhakkan aafrikkayile yadhaartha aadyakaala lover plistoseen ooldoovan upakaranangalude kandethalumayi chernnu, artifact sidhaanthathinu pinthuna nalkunnathu budhimuttaakki.

