Peb paub tias peb lub ntiaj teb yog tag nrho ntawm kev xav paub thiab qhov chaw uas tsis muaj tseeb. Ib qho ntawm qhov chaw uas nyiam ntau rau cov kws tshawb fawb yog qhov sahara suab puam qhov muag. Nws yog ib qho chaw nyob hauv nruab nrab ntawm cov suab puam uas tuaj yeem pom los ntawm qhov chaw hauv lub qhov muag.
Hauv tsab xov xwm no peb yuav qhia koj txhua yam uas paub txog lub qhov muag ntawm Sahara suab puam, nws keeb kwm thiab cov yam ntxwv.
Index
Lub qhov muag ntawm Sahara suab puam
Paub thoob ntiaj teb raws li "Lub Qhov Muag ntawm Sahara" lossis "Lub Qhov Muag ntawm Bull", cov qauv Richat yog qhov xav paub thaj chaw muaj nyob hauv Sahara suab puam ze lub nroog Udane, Mauritania, Africa. Txhawm rau kom meej meej, cov duab ntawm "qhov muag" tsuas tuaj yeem txaus siab los ntawm qhov chaw.
Cov qauv 50-kilometer-diameter, ua los ntawm cov kab zoo li lub voj voog, tau pom nyob rau lub caij ntuj sov xyoo 1965 los ntawm NASA tus kws tshawb fawb James McDivit thiab Edward White thaum lub sijhawm ua haujlwm hauv qhov chaw hu ua Gemini 4.
Lub hauv paus chiv keeb ntawm Lub Qhov Muag ntawm Sahara yog tsis paub tseeb. Thawj qhov kev xav pom tau hais tias nws yog vim muaj kev cuam tshuam ntawm lub meteorite, uas yuav piav qhia txog nws lub voj voog. Txawm li cas los xij, kev tshawb fawb tsis ntev los no qhia tau tias nws yuav yog cov qauv sib luag ntawm cov tshuaj tiv thaiv kab mob uas tsim los ntawm kev yaig ntau lab xyoo.
Lub qhov muag ntawm Sahara yog qhov tshwj xeeb hauv ntiaj teb vim nws nyob hauv nruab nrab ntawm cov suab puam tsis muaj dab tsi nyob ib puag ncig nws.Hauv nruab nrab ntawm lub qhov muag yog cov pob zeb Proterozoic (los ntawm 2.500 billion rau 542 lab xyoo dhau los). Nyob rau sab nraud ntawm cov qauv, cov pob zeb hnub tim rau lub sijhawm Ordovician (pib txog 485 lab xyoo dhau los thiab xaus rau 444 lab xyoo dhau los).
Cov tub ntxhais hluas formations yog nyob rau hauv lub vojvoog deb tshaj plaws, thaum cov laus tshaj formations yog nyob rau hauv nruab nrab ntawm lub dome. Thoob plaws hauv cheeb tsam muaj ntau hom pob zeb xws li volcanic rhyolite, igneous pob zeb, carbonatite thiab kimberlite.
Keeb kwm ntawm lub qhov muag los ntawm cov suab puam Sahara
Lub qhov muag ntawm Sahara ntsia ncaj qha rau hauv qhov chaw. Nws muaj ib txoj kab uas hla ntawm 50.000 meters thiab geography thiab astronomers pom zoo tias nws yog ib tug "nrhiav" geological tsim. Qee cov kws tshawb fawb ntseeg tias nws tau tsim tom qab kev sib tsoo ntawm lub hnub qub loj heev. Txawm li cas los xij, lwm tus ntseeg tias nws muaj qee yam ua rau kev yaig ntawm lub dome los ntawm cua.
Nyob rau sab qaum teb hnub poob ntawm Mauritania, nyob rau sab hnub poob ntawm Africa, qhov tsis txaus ntseeg tiag tiag yog tias nws muaj lub voj voog loj hauv. Txog tam sim no, qhov no yog qhov paub txog crustal anomalies.
Lub voj voog ntawm Lub Qhov Muag ntawm Sahara yog rumored los cim cov kab ntawm lub nroog qub ploj. Lwm tus, ncaj ncees rau txoj kev xav koom nrog, lees paub tias nws yog ib feem ntawm cov qauv loj heev extraterrestrial. Nyob rau hauv qhov tsis muaj pov thawj nyuaj, tag nrho cov kev xav no tau raug tso tawm mus rau thaj tsam ntawm pseudoscientific speculation.
Qhov tseeb, lub npe ntawm daim av no yog "Richat Structure". Nws qhov muaj nyob tau raug sau tseg txij li xyoo 1960, thaum NASA Gemini ntoj ke mus kawm astronauts siv nws los ua qhov taw qhia. Thaum lub sijhawm, nws tseem xav tias yog cov khoom lag luam ntawm lub hnub qub loj heev.
Niaj hnub no, txawm li cas los xij, peb muaj lwm cov ntaub ntawv: "Lub voj voog geological tau ntseeg tias yog qhov tshwm sim ntawm ib lub dome (qhia los ntawm geologists raws li lub vaulted antilined) uas tau eroded tam sim ntawd, exposing ca pob zeb formations," kaw tib lub chaw haujlwm. Sediment sampling nyob rau hauv cheeb tsam qhia tias nws tsim txog 542 lab xyoo dhau los. Raws li IFL Science, qhov no yuav muab tso rau hauv lub sijhawm Proterozoic lig, thaum cov txheej txheem hu ua folding tshwm sim nyob rau hauv uas "tectonic rog compressed sedimentary pob zeb." Yog li cov symmetrical antilines tau tsim, ua rau nws puag ncig.
Cov xim ntawm cov qauv tuaj qhov twg?
Lub qhov muag ntawm Sahara tau dav kawm los ntawm ntau ceg ntawm kev tshawb fawb. Qhov tseeb, kev tshawb fawb xyoo 2014 tau luam tawm hauv African Journal of Geosciences qhia tias Lub Richat Structure tsis yog cov khoom ntawm phaj tectonics. Hloov chaw, cov kws tshawb fawb ntseeg tias lub dome raug thawb los ntawm qhov muaj cov pob zeb volcanic molten.
Cov kws tshawb fawb piav qhia tias ua ntej nws eroded, cov nplhaib uas tuaj yeem pom ntawm qhov chaw niaj hnub no tau tsim. Vim lub hnub nyoog ntawm lub voj voog, nws yuav yog ib qho khoom ntawm kev tawg ntawm Pangea: lub supercontinent uas coj mus rau tam sim no faib ntawm lub ntiaj teb.
Raws li cov qauv xim uas tuaj yeem pom ntawm qhov chaw ntawm cov qauv, cov kws tshawb fawb pom zoo tias qhov no muaj feem xyuam rau hom pob zeb uas tshwm sim los ntawm kev yaig. Ntawm lawv, nplua-grained rhyolite thiab coarse-grained gabbro sawv tawm, uas tau hloov pauv hydrothermal. Yog li ntawd, Lub qhov muag ntawm Sahara tsis muaj kev koom ua ke "iris".
Vim li cas nws cuam tshuam nrog lub nroog poob ntawm Atlantis?
Lub mythical kob no tshwm sim nyob rau hauv cov ntawv ntawm lub npe nrov Greek philosopher Plato thiab tau piav raws li ib tug immeasurable tub rog lub hwj chim uas muaj ntau txhiab xyoo ua ntej lub hav zoov ntawm Solon, tus neeg tsim cai lij choj Athenian, raws li tus kws tshawb fawb no Solon yog lub hauv paus ntawm keeb kwm.
Xav txog Plato cov ntawv sau txog cov ntsiab lus, tsis muaj leej twg ntseeg tias qhov "qhov muag" no yog los ntawm lwm lub ntiaj teb thiab nws yuav muaj ib yam dab tsi ua rau qhov kawg ntawm tsheej lab ntawm Atlanteans. Ib qho ntawm cov laj thawj uas qhov muag tsis tau pom tau ntev yog tias nws nyob hauv ib qho ntawm qhov chaw tsis muaj tsev nyob hauv ntiaj teb.
Raws li epic thiab xav tsis thoob li Plato cov lus piav qhia ntawm Atlantis yog, ntau tus ntseeg tias nws tsuas yog khawb qhov chaw. Plato piav txog Atlantis ua lub voj voog loj loj uas sib txawv ntawm thaj av thiab dej, zoo ib yam li "Lub Qhov Muag ntawm Sahara" peb pom niaj hnub no. Qhov no yuav yog ib qho kev nplua nuj nyob hauv Utopian uas tau tsim lub hauv paus rau Athenian qauv ntawm kev ywj pheej, ib haiv neeg nplua nuj nyob rau hauv kub, nyiaj, tooj liab, thiab lwm yam hlau thiab gems.
Lawv tus thawj coj, Atlantis, nws yuav tau ua tus thawj coj hauv kev kawm, kev tsim vaj tsev, kev ua liaj ua teb, thev naus laus zis, ntau haiv neeg thiab kev txhawb nqa ntawm sab ntsuj plig, nws lub zog tub rog thiab tub rog tsis sib haum xeeb hauv cov xwm txheej no, Atlantis Kings kav nrog txoj cai loj.
Kuv vam tias nrog cov ntaub ntawv no koj tuaj yeem kawm paub ntxiv txog qhov muag ntawm Sahara suab puam thiab nws cov yam ntxwv.
Yog thawj tus tuaj tawm tswv yim