Thaum twg cadmans tsev tsim?

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Thaum twg cadmans tsev tsim?
Thaum twg cadmans tsev tsim?

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Ua hauv 1816, Cadmans Tsev yog ib qho ntawm ib qho ntawm cov tsev Sydney nkaus xwb uas tseem tshuav los ntawm thawj 30 xyoo ntawm lub tebchaws. Tau ntau xyoo no lub tsev sandstone tau ua lub hauv paus chaw thauj dej, lub tsev neeg caij nkoj thiab chaw nres tsheb dej, thiab lwm yam.

Leej twg nyob hauv Cadmans tsev?

Cadman sib yuav Elizabeth Mortimer, uas muaj ob tug ntxhais, hnub tim 26 Lub Kaum Hli 1830 ntawm St Phillip lub Koom Txoos. Lawv sawv daws nyob hauv Tsev Tsev mus txog thaum nws cov ntxhais xeeb ntxwv tau sib yuav hauv 1842 thiab 1845. Cadman tuav txoj hauj lwm ntawm coxswain thiab nyob hauv tsev mus txog thaum nws so haujlwm xyoo 1845.

Lub tsev qub tshaj plaws hauv Sydney yog dab tsi?

Nws tau ntseeg tias lub tsev qub tshaj plaws hauv Sydney thiab Australia lub tsev qub tshaj plaws yog Elizabeth Farm nyob rau hauv Sydney suburb ntawm Rosehill Ua hauv 1793 los ntawm John Macarthur, nws thawj zaug ua khoom vaj khoom tsev rau Marcarthur thiab nws tsev neeg, ua rau nws yog lub tsev qub tshaj plaws hauv Australia.

Lub tsev qub tshaj plaws nyob hauv lub ntiaj teb yog dab tsi?

Knap of Howar Dating rov qab mus rau ib ncig ntawm 3600 BCE, Knap ntawm Howar yog lub tsev qub tshaj plaws hauv ntiaj teb thiab feem ntau yuav yog lub tsev qub tshaj plaws uas tseem sawv. Lub Knap ntawm Howar muaj ob lub tsev ua pob zeb uas tau pom nyob rau xyoo 1930 thaum kev yaig tau nthuav tawm qee qhov ntawm cov phab ntsa pob zeb.

Dab tsi yog qhov qub tshaj plaws hauv tebchaws Australia?

Hauv Western Australia, 3.5 bn-xyoo-laus stromatolites txhim tsa cov pa oxygen ntawm lub ntiaj teb cua mus txog 20%, muab qhov hnia ntawm lub neej rau txhua yam uas yog rau evolve. Lub hnub ci tau qhib thiab lub qhov rais tinted raug mob.

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