Tanzanian roob hluav taws yuav ua kom puas lub ib co kua nplaum ntawm ancient hominin

Tanzanian roob hluav taws pib qhia tej cim ntawm lub neej, thiab soj ntsuam xav tias nws uas tej zaum yuav pib sai sai. Zaum heev kev txhawj xeeb txog qhov no zeem muag, vim hais tias cov roob hluav taws nyob ib lub pob zeb tus muab los ntawm lub scientific tseem ceeb ntawm Olduvai noj tsau hwv lawm, qhov uas ib co kua nplaum ntawm ancient hominin tau pom. Yog hais tias qhov uas yog tiag tiag yuav tshwm sim, peb yuav poob ib qho tseem ceeb ib feem ntawm tib neeg keeb kwm.

coj txawv txawv lub roob hluav taws

Thaum nws los txog rau lub roob, spewing molten pob zeb, ol Doinyo Lengai yog distinguished los ntawm nws yeej coj txawv txawv tus cwj pwm. Lava uas lub roob hluav taws Dentistry, muaj ib tug unusually "txias" kub - tsuas yog 510 ° C. Nws yuav zoo li uas nws tsis yog li ntawd me ntsis, tab sis tsis txhob hnov qab tias cov txwm kub ntawm lub lava thaum lub sij hawm kev tawg ntawm lub roob hluav taws - 1000 ° C. Lava Tanzanian roob hluav taws tseem yog kuj muaj kev nyab xeeb, vim hais tias thaum tus txiv neej uas poob mus rau hauv nws, muaj peev xwm kom ciaj sia. Thaum no strangeness lava tsis xaus, rau Piv txwv li, nws ntws li dej.

volcanic deformtsiya

Txawm li cas los, saib xyuas hauv lub xeev ntawm lub roob hluav taws tshaj yav dhau los ob peb xyoos tau qhia ib yam dab tsi disturbing. Nws pib qhia tej cim ntawm kev ntxhov siab vim, thiab cov magma nyob rau hauv lub roob hluav taws nto lub cev picks nws ib feem. Cov soj ntsuam ntawm hais tias qhov uas yog inevitable, thiab nws yog yuav tshwm sim nyob rau hauv ib tug teeb meem ntawm lub hlis es xyoo.

"Nyob rau hauv lub sab hnub poob ib feem ntawm lub volcanic tshauv emissions yog tsau, av qeeg, raising me me volcanic cones thiab expanding tej kab nrib pleb, - commented nyob rau hauv ib tug kev sib tham rau National Geographic volcanologist Sarah Stemps. - Tag nrho cov tej yam tshwm sim taw tes rau ib tug volcanic deformation, uas yog yuav coj mus rau ib qho uas. "

ib co kua nplaum ntawm hominin

Cov kev tawg ntawm no lub roob hluav taws tsis yog tsuas yog xav nyob rau hauv lub volcanologists thiab geologists. Nws yuav tsum hais tias cov ntoo tshauv, lava thiab khib nyiab yuav poob rau hauv ib ncig toj roob hauv pes thiab tej zaum puas ib co ntawm cov earliest pov thawj ntawm tib neeg keeb kwm, mus rau lub dismay ntawm anthropologists uas kawm cov ib co kua nplaum ntawm yav dhau los ob peb decades.

Nws yog ntseeg hais tias qhov uas nws tus kheej yog tsis muaj teeb meem rau lub ancient ib co kua nplaum ntawm hominin. Tab sis yog hais tias nws tshwm sim nyob rau hauv lub caij los nag, ib tug sib tov ntawm tshauv thiab dej, ua ke nrog ib tug coj txawv txawv kua lava yuav ntws nyob rau hauv lub Olduvai noj tsau hwv lawm, kiag li yuav tsum vov yuav tsum tau muab cia rau muaj.

Cov txheejtxheem uas cia li 14,4 kilometers ntawm ol Doinyo Lengai, soj ntsuam ntawm pom ntau tshaj 400 zoo-fwm ib co kua nplaum ntawm hominin muaj hnub nyoog ntau dua 19,000 xyoo. Qhov kev txiav yog hu ua tus "seev cev nrog" vim hais tias ntawm lub amazing tooj ntawm hneev. Nws nkawd hais tias peb pog koob yawg koob wb lub hav strewn nrog ashes los ntawm lub roob hluav taws, tsis ntev tom qab nws uas.

Ntawm txawm ntau dua kev txhawj xeeb yog cov ib co kua nplaum sab laug los ntawm peb ntau ancient pog koob yawg koob tej 3.6 lab xyoo dhau los nyob rau hauv Laetoli, txawm hais tias lawv muaj nyob rau hauv 114 kilometers ntawm lub roob hluav taws, ces nws yog vam hais tias nws lawv yog cov yuav mus spare.

Nyob rau hauv txhua rooj plaub, yog tias qhov uas ua tau pib, tus zaum yuav tsis ua dab tsi. Lub prints tau kiag li luam, tab sis tshem lawv thiab txav mus rau ib tug muaj kev ruaj ntseg qhov chaw yog tsis tau. Nws nkawd hais tias txhua yam peb ua - yog yuav tos thiab saib, yuav tsis txhob ua puas yog hais tias cov prints ntuj cov kev tshwm sim, uas yog vim li cas rau lawv cov tsos.