The　Ediacaran　glaciation　has　garnered　considerable　attention　for　its　potential　biological　impact　because　it　witnesses　the　birth　of　complex　animals.　Many　researchers　question　whether　large-scale　regional　or　even　global　glaciations,　represent　critical　barriers　to　the　evolution　of　macroscopic　animals.　So　how　did　complex　animals　survive　during　a　major　glaciation?　One　possible　explanation　is　the　existence　of　isolated　shallower　refugia　or　icefree　oases.　However,　the　sedimentary　evolution　of　such　ice-free　oases　and　how　they　could　support　the　survival　of　complex　life　forms　are　not　yet　fully　understood.　This　study　focuses　on　the　inter-diamictite　black　sediments　in　the　Ediacaran　Talisayi　Formation　of　NW　China　(Yili　block),　which　may　represent　a　habitable　ice-free　oasis　during　the　Gaskiers　glaciation.　The　sedimentary　facies　and　geochemical　analyses　indicate　that　these　deposits　were　formed　in　oxygenated　and　photic　shallow　glacier　lake　environments　with　highly　developed　microbial　mat　substrates,　it　was　formed　during　a　short-lived　partial　deglaciation　with　enhanced　weathering.　And　diverse　organic-wall　microfossils　were　found　within　the　inter-diamictite　black　sediments.　Furthermore,　based　on　the　growth　habits　of　modern　microbial　algal　mats,　a　paleontological　clock　can　be　established　to　estimate　the　duration　of　partial　deglaciation,　which　may　have　lasted　only　for　thousands　of　years.　The　ice-free　oasis　formed　during　this　period　could　potentially　harbor　complex　ecosystems,　providing　valuable　ecological　and　temporal　windows　for　the　evolution　of　complex　animals.