Isixhobo se-APXC esikhwele i-lunar rover ye-ISRO's Chandrayaan-3 ye-mission yenyanga iqhube uphononongo lwe-spectroscopic kwi-situ ukuze kuqinisekiswe ubuninzi bezinto ezisemhlabeni ezijikeleze indawo yokumisa kwingingqi esemazantsi eNyanga. Olu yayiluphononongo lokuqala lwe-in-situ yokwakheka kwe-elemental kumhlaba wenyanga kummandla we-polar osemazantsi (uphononongo lwangaphambili luhlalutye ukubunjwa komhlaba kwi-ikhwetha ukuya kwimimandla yobubanzi obuphakathi). Iziphumo zabonisa ukufana ekuhlanganiseni umhlaba wenyanga. Ilitye le-Ferroan Anorthosite (FAN), elityebileyo kwi-plagioclase mineral yayikhona ubukhulu becala. Le yimveliso yelunar magma ocean (LMO) crystallization. Ubuninzi beeminerali ezityebileyo ngemagnesium nabo bachongwa becebisa igalelo kubunzulu beNyanga. Ngokubanzi, olu phononongo luxhasa i-Lunar Magma Ocean (LMO) hypothesis ye-evolution yeNyanga.
Uthumo lwenyanga lwe-ISRO's Chandrayaan-3 lubonise amandla okuhla enyangeni nge-23 ka-Agasti ka-2023 xa ummi wayo wehla phezu kwenyanga kufutshane nepali esemazantsi kwi-69.37-degree South latitude kunye ne-32.35-degree longitude yaseMpuma (kamva eyathiywa igama elithi Shiv Shakti point).
Irover esetyenzisiweyo iphonononge indawo ekufutshane enqumla malunga neemitha ezili-103 kwiintsuku ezilishumi ezizayo kwaye yenza imifuniselo ekwi-situ isebenzisa isixhobo se-Alpha Particle X-ray Spectrometer (APXS) kwirover.
Uthumo lwalinganisa ukubunjwa kwezinto kumhlaba wenyanga kwiindawo zokumisa i-rover ngokubeka isixhobo se-APXS kufutshane nomphezulu wemilinganiselo kunye nokusibuyisela umva ngelixa sihamba. I-X-ray Fluorescence Spectroscopy kunye ne-Particle Induced X-ray Emission techniques zisetyenziselwe ukufumanisa kunye nokulinganisa izinto ezahlukeneyo eziphambili nezincinci ezikhoyo kumhlaba wenyanga, njengeSi, Mg, Al, Fe, Ca, kunye noMn, Cr, Ti, Ni, K, Na, kunye, S etc. Ngokurhabula umphezulu wenyanga kunye nemithombo yayo Cm-244, APXS erekhodiweyo iimpawu X-reyi imigca zonke izinto ezinkulu nezincinane. I-APXS yenze imigqaliselo engama-23 ecaleni kwendlela ye-rover kwaye yafumana i-X-ray spectrum kwindawo nganye.
Le yimilinganiselo yokuqala ekwisitu yeziqulatho zezinto ezisemhlabeni wenyanga kwimimandla esemazantsi yobude obuphezulu beNyanga. Izifundo zangaphambili zemilinganiselo yezinto kumhlaba wenyanga zenziwe kusetyenziswa iisampulu eziqokelelwe ukusuka kwi-ikhweyitha ukuya kwimimandla yobubanzi obuphakathi yiApollo, iLuna kunye neChang'e 5 yemishini, iinkwenkwezi zenyanga ezingaziwayo indawo yemvelaphi kunye nemilinganiselo ye-in-situ ukusuka kumbindi. -imimandla yesilayithi ngeChang'e 3 kunye neChang'e 4 yemishini.
Uhlalutyo lwedatha ye-APXS ukusuka kwimilinganiselo ye-23 kwindawo nganye kufuphi nendawo yokumisa ibonise ukuba ukubunjwa kwe-elemental kufana nendawo yonke ephononongwa yi-rover. Umhlaba ngumxube weentlobo ezimbini zamatye. Ilitye le-Ferroan Anorthosite (FAN), elityebileyo kwi-plagioclase minerali yimveliso ye-lunar magma ocean (LMO) crystallization. Isixhobo se-APXS siphinde safumanisa ubuninzi beeminerali ezityebileyo ngemagnesium.
Ulwazi lokubunjwa kwezinto kwindawo yenyanga lubalulekile ekuqondeni ukubunjwa kunye nokuvela kweNyanga. Ngokutsho kweLunar Magma Ocean (LMO) hypothesis, iNyanga yayilulwandle lweMagma ekuqaleni. Iiminerali ezinzima ngakumbi zatshona kwaye zenza iileya zangaphakathi njengoko i-magma iphola. Ngaxeshanye, iiminerali ezikhaphukhaphu zadada kwaye zenza uqweqwe lwangaphandle lweNyanga.
Ubukho obuphambili be-Ferroan Anorthosite (FAN) kumhlaba wenyanga kwingingqi ye-rover lending site, eyona nto ifunyenwe kolu phononongo ixhasa i-Lunar Magma Ocean (LMO) hypothesis. Ubukho beeminerali ezityebileyo ze-magnesium bucebisa ukuxubana neeminerali ukusuka kumaleko angaphakathi.
***
Iingxelo:
- Vadawale, SV, Mithun, NPS, Shanmugam, M. et al. I-Chandrayaan-3 APXS imilinganiselo yobuninzi obusisiseko kwindawo ephakamileyo yenyanga. Indalo (2024). https://doi.org/10.1038/s41586-024-07870-7
- ISRO Media ukukhutshwa. I-PRL-eyakhelwe i-APXS kwi-Pragyan Rover yase-Chandrayaan-3 yenza iMilinganiselo yokuQala yoBuninzi boBuninzi bomhlaba weLunar kwiNgingqi yePolar yaseMazantsi yeNyanga. Ithunyelwe nge-21 Agasti 2024. Iyafumaneka e https://www.isro.gov.in/media_isro/pdf/APXS_CH3.pdf
***
Amanqaku afanelekileyo:
Umdyarho weLunar: I-Chandrayaan 3 yaseIndiya iphumeza isakhono sokufika ngokuthambileyo (23 Agasti 2023)
I-ISRO Yazisa iChandrayaan-3 Moon Mission (14 Julayi 2023)
I-JAXA (i-Arhente yokuHlola i-Aerospace yase-Japan) iphumeza isakhono sokufika eLunar (20 Januwari 2024)
'Isango' iSikhululo seSithuba seLunar 'se-Artemis Mission': I-UAE ibonelele nge-Airlock (8 Januwari 2024)
Umdyarho weNyanga 2.0: Yintoni eqhuba umdla ohlaziyiweyo kwimishini yenyanga? (27 Agasti 2023)
Ukutshabalala kweMisa kwimbali yoBomi: Ukubaluleka kwe-Artemis Moon ye-NASA kunye nePlanethi... (23 Agasti 2022)
I-Artemis Moon Mission: NgakwiNdawo eNzulu yokuHlala kwabantu (11 Agasti 2022)
I-Atmosphere yeNyanga: I-Ionosphere inoxinano oluphezulu lwePlasma (9 Agasti 2022)
I-PHILIP: I-Laser-Powered Rover ukuphonononga iiCretha zeLunar ezibandayo kakhulu zamanzi (18 Meyi 2020)
***
