Chiitiko ichi chizere nezvisinganzwisisike
Apo munyori wejogirafi wekuBritain Thomas Griffith Taylor akatanga rwendo rwake rweushingi achiyambuka East Antarctica muna 1911, rwendo rwake rwakasangana nechiono chaityisa: kumucheto kweazaya echando nerukova rweropa rwaiyerera kubva mariri. Pashure pemakore zana ekufungidzira, chikonzero chokudonha kweRopa chakatangwa.
Masayendisiti ekuUS akashandisa ma electronic microscopes ane simba kutarisisa sampuli dzemvura yeRopa Falls vakawana kuwanda kwemairon-rich nanospheres anotsvuka kana aiswa oxidized.
"Pandakangotarisa mifananidzo yemaikorosikopu, ndakaona kuti maive nemananospheres aya madiki, uye aive akapfuma musimbi, uye kunze kwesimbi, maive neakasiyana maelementi mairi - silicon, calcium, aluminium, sodium - uye aive zvose zvakasiyana, "akadaro mukutaura Ken Leavy, musayendisiti anotsvakurudza muDhipatimendi reZvinhu Sayenzi neUinjiniya paWhiting School paJohns Hopkins University.
Inozivikanwa nekudzika kwayo ruvara rutsvuku, iron oxide kusvika zvino yanga iri fungidziro huru mune chakavanzika cheRopa Falls. Zvisinei, iyi nzira yepamusoro yekufungidzira yakabatsira vatsvakurudzi kuwana mufananidzo wakajeka wekuti sei mvura inoyerera yakaita ruvara rutsvuku rwakajeka - uye nei zvimwe zvidzidzo zvekare zvakakundikana.
“Kuti ive chicherwa, maatomu anofanira kurongeka muchimiro chakanangana nekristaro. Aya ma<em>nanospheres haana crystalline, saka nzira dzaimboshandiswa pakuongorora zvakaomeswa hadzione,” anotsanangura kudaro Livy.
Mumwe anogona kufunga kuti mvura yaro-tsvuku yeropa ndiyo inonyanya kujairika yeAntarctica's Blood Falls, asi iyi geological chimiro chizere nezvisinganzwisisike.
Masayendisiti akaona kuti mvura tsvuku inoyerera kubva kuBlood Falls inobva mugungwa remunyu rakaramba rakavharirwa muaizi kwemakore 1.5 kusvika ku4 miriyoni. Muchokwadi, dziva iri rinongori chikamu cheyakakura pasi pevhu system ye hypersaline madziva uye aquifers.
Ongororo yemvura inoratidza kuti isingawanzo yakadzika pasi peganda ecosystem yebhakitiriya inogara mumadziva akavigwa emvura yehypersaline - zvisinei nekushaikwa kweokisijeni. Izvi zvinoreva kuti mabhakitiriya akapfuurira kwemamiriyoni emakore asina photosynthesis uye angangodaro akatsigirwa nekuchovha simbi kubva mumvura.
Tichifunga nezvezvinhu izvi zvepasi rose, masayendisiti anotenda kuti Ropa Falls rinogona kudzidzwa kuti riwane kunzwisisa kwakadzama kwemamwe mapuraneti mune dzimwe nzvimbo dzesolar system.
“Nekuuya kwemisheni ye<em>rover, kwakanga kune chido chokuedza kuongorora zvinhu zvakasimba zvaibuda mumvura dzeBlood Falls sokunge kuti paiva nokumhara kweMartian,” anodaro Leavy.
“Chii chaizoitika kana rover ikamhara muAntarctica? Chaizokwanisa here kuziva kuti chii chakaita kuti Blood Falls iite tsvuku? Uyu mubvunzo unonakidza wakafungwa nevaongorori vakati wandei.”
Kunobva: iflscience.com
