Munguva yakapfuura, mahwindo epa mache aishandiswa muChina yekare, uye mahwindo egirazi anongowanikwa munguva dzazvino, zvichiita kuti madziro eketeni regirazi mumaguta ave chiono chakanaka, asi makumi ezviuru zvemakore egirazi magirazi akawanikwawo pasi pano, mukati chaimo. 75-kilomita corridor yeAtacama Desert iri kuchamhembe kwenyika yeSouth America yeChile.Madhipoziti egirazi rakasviba silicate akapararira munharaunda, uye akaedzwa kuti ave pano kwemakore gumi nemaviri, vanhu vasati vagadzira tekinoroji yekugadzira magirazi.Pave paine fungidziro yekuti zvinhu zvegirazi izvi zvakabva kupi, sezvo kupisa kwakanyanya kwakanyanya kungadai kwakapisa ivhu rejecha kuita silicate crystals, saka vamwe vanoti "hero yemoto" yakamboitika pano.Ongororo ichangobva kuitika inotungamirwa neBrown University's Department of Earth, Environmental and Planetary Sciences inoratidza kuti girazi rinogona kunge rakaumbwa nekupisa kwepakarepo kwekometi yekare yakaputika pamusoro pePasi, sekureva kwaNov. 5 Yahoo News report.Mune mamwe mazwi, chakavanzika chekwakabva magirazi ekare aya chakagadziriswa.
Muchidzidzo cheBrown University, ichangobva kuburitswa mupepanhau reGeology, vaongorori vanoti sampuli dzegirazi remugwenga dzine zvidimbu zvidiki zvisingawanikwe paNyika.Uye zvicherwa zvakanyatsoenderana nekuumbwa kwezvinhu zvakadzoserwa kuNyika neNASA's Stardust mission, iyo yakaunganidza zvimedu kubva kucomet inonzi Wild 2. Chikwata ichi chakabatana nezvimwe zvidzidzo kugumisa kuti aya mamineral assemblages angangoita mhedzisiro yecomet ine chimiro. yakafanana neWild 2 iyo yakaputika panzvimbo iri padyo nePasi uye zvishoma uye nekukurumidza yakawira muAtacama Desert, ichibva yagadzira kupisa kwakanyanya uye nekunyungudutsa pasi pejecha, ichisiya zvimwe zvayo.
Iyi mitumbi ine magirazi yakatarisana neAtacama Desert kumabvazuva kweChile, bani riri kuchamhembe kweChile rakaganhurwa neAndes kumabvazuva uye Chilean Coastal Range kumadokero.Sezvo pasina humbowo hwekuputika kwegomo rinoputika pano, genesis yegirazi yagara ichikwezva nharaunda ye geological uye geophysical kuti iite tsvakiridzo yemunharaunda.
Zvinhu zvegirazi izvi zvine chikamu che zircon, icho chinozowora nekushisa kuita baddeleyite, shanduko yemamineral inoda kusvika kune tembiricha inopfuura 1600 madhigirii, iyo isiri moto wepanyika.Uye panguva ino chidzidzo cheBrown University chakawedzera kusanganisa kusanganisa kwemaminerari anowanikwa chete mumameteorite nemamwe matombo ekunze, senge calcite, meteoric iron sulfide uye calcium-aluminium-rich inclusions, inofananidzira siginecha yemamineralgical yemasamples ecomet akatorwa kubva kuNASA's Stardust mission. .Izvi zvakaita kuti pave nemhedziso yazvino.
Nguva yekutumira: Nov-16-2021