Don Gishiri

Don Glaciation, wanda aka fi sani da Donian Glaciation da Donian Stage, shine babban glaciation na Gabashin Turai, shekaru 0.8-0.5 da suka gabata, a lokacin Cromerian Stage na Tsakiyar Pleistocene. Yana da alaƙa da Marine Isotope Stage 16 (MIS 16),  kimanin shekaru 650,000 da suka gabata, wanda a duniya ya ƙunshi ɗayan manyan ƙwayoyin glacial na Quaternary. 

 Don Gishiri 
Don Glaciation yana nuna shaidar mafi girman kankara a Gabashin Turai, yana faɗaɗa cikin kwandon ruwa na tsakiyar da ƙananan Kogin Don a Rasha, yana kaiwa digiri 50 na arewacin latitude. Wannan glaciation ya faru ne kafin Muchkap interglacial da Oka da Dnieper glaciations na Gabashin Turai.  

 Marine Isotope Mataki na 16 
MIS 16 babban matakin glacial ne da aka gano ta hanyar auna isotopes oxygene a cikin samfuran zurfin teku mai zurfi (matakin isotope na teku) na shekarun Cromerian, kimanin 676-621 ka da suka wuce.[1] Dangane da girman ƙanƙara na duniya, yana matsayi ɗaya daga cikin mafi girman glaciations biyu na Quaternary, daidai da MIS 12.[2][3] Duk da haka, dangane da yanayin ruwan teku yana da mafi ƙarancin glaciation, na irin ƙarfin yanayi mai kama da glaciations Cromerian MIS 14 da MIS 18.[2]. Matsakaicin yanayi na CO2 ya kasance ƙasa da 180 ppm don 3 ka yayin MIS 16, mafi ƙanƙanta na zagayowar glacial takwas na ƙarshe.[3]

 Haɗuwa 
Don da MIS 16 yawanci suna da alaƙa da juna. Wannan ya dogara ne akan zaton cewa shaidar da ta fi yaduwa game da glaciation a cikin Cromerian ya kamata a haɗa shi da mafi girman glaciation akan yanayin duniya. Koyaya, ƙudurin lokaci na ƙudurin shekaru na yanzu bai isa ba don bambancin bayyane tsakanin MIS 14, MIS 16 da MIS 18 .   Ba a san dalilin da ya sa babban glaciation na MIS 16 ya bar wata hujja kaɗan a cikin bayanan ilimin ƙasa na Yammacin Turai ba. An yi imanin cewa MIS 16 ya dace da Pre-Illinoian D a Arewacin Amurka.

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 Jerin lokaci na ƙanƙara

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