M'mbuyomu, mazenera a mapepala a mapepala ankagwiritsidwa ntchito ku China wakale, ndipo mawindo agalasi amapezeka masiku ano, kupanga makoma a magalasi m'mizinda kukhala mawonekedwe odabwitsa, koma magalasi a zaka zikwi makumi ambiri apezekanso padziko lapansi. mtunda wa makilomita 75 wa chipululu cha Atacama kumpoto kwa dziko la Chile ku South America.Madipoziti a galasi lakuda la silicate amwazikana kwanuko, ndipo adayesedwa kukhala pano kwa zaka 12,000, anthu asanatulukire ukadaulo wopanga magalasi.Pakhala pali malingaliro oti zinthu zamagalasizi zidachokera kuti, chifukwa kuyaka kwakukulu kokhako kukadawotcha dothi lamchenga kukhala makristalo a silicate, kotero ena amati "moto wa gehena" udachitikapo pano.Kafukufuku waposachedwapa wotsogoleredwa ndi dipatimenti ya Earth, Environmental and Planetary Sciences ya Brown University akusonyeza kuti galasilo likhoza kupangidwa ndi kutentha kwanthawi yomweyo kwa comet yakale yomwe inaphulika pamwamba pa dziko lapansi, malinga ndi lipoti la Nov. 5 Yahoo News.Mwa kuyankhula kwina, chinsinsi cha chiyambi cha magalasi akalewa chathetsedwa.
Mu kafukufuku wa Brown University, wofalitsidwa posachedwapa mu nyuzipepala ya Geology, ofufuza akuti zitsanzo za magalasi a m'chipululu zili ndi tiziduswa tating'onoting'ono timene sitipezeka pa Dziko Lapansi.Ndipo mcherewo umagwirizana kwambiri ndi zomwe zinabweretsedwa ku Dziko Lapansi ndi ntchito ya NASA ya Stardust, yomwe inasonkhanitsa tinthu tating'onoting'ono ta comet yotchedwa Wild 2. Gululi linaphatikizana ndi maphunziro ena kuti atsimikize kuti magulu a mcherewa mwina ndi zotsatira za comet ndi kapangidwe kake. zofanana ndi Wild 2 zomwe zinaphulika pamalo pafupi ndi Dziko lapansi ndipo pang'ono ndi pang'ono zinagwera m'chipululu cha Atacama, nthawi yomweyo zimatulutsa kutentha kwambiri ndikusungunula mchenga, ndikusiya zina zake.
Matupi agalasi ameneŵa ali m’chipululu cha Atacama kum’maŵa kwa Chile, phiri la kumpoto kwa Chile lomwe lili m’malire ndi mapiri a Andes kum’mawa ndi Nyanja ya Chile kumadzulo.Popeza palibe umboni wa kuphulika kwamphamvu kwa chiphalaphala pano, chiyambi cha galasi nthawi zonse chimakopa anthu a geological ndi geophysical kuti apange kufufuza koyenera kwanuko.
Zinthu zagalasizi zimakhala ndi gawo la zircon, lomwe limawola ndikuwola ndikupanga baddeleyite, kusintha kwa mchere komwe kumafuna kutentha kuposa madigiri a 1600, komwe sikuli moto wapadziko lapansi.Ndipo nthawi ino kafukufuku wa Brown University adazindikiranso kuphatikiza kwapadera kwa mchere womwe umapezeka mu meteorites ndi miyala ina yakunja, monga calcite, meteoric iron sulfide ndi calcium-aluminium-rich-rich inclusions, yofananira ndi siginecha yamitundu ya comet yomwe idatengedwa ku NASA's Stardust mission. .Zimenezi zinachititsa kuti pakalipano.
Nthawi yotumiza: Nov-16-2021