Video: Dab tsi yog dendrochronology sim rau hnub tim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dendrochronology (los yog tsob ntoo-ntiv nplhaib sib tam) yog txoj kev tshawb fawb ntawm kev sib tw ntoo rings (tseem hu ua kev loj hlob rings) mus rau lub xyoo uas lawv tau tsim. Nws kuj yog siv los ua ib qho kev txheeb xyuas hauv xov tooj cua sib tham los ntsuas cov hnub nyoog radiocarbon. Kev loj hlob tshiab hauv cov ntoo tshwm sim nyob rau hauv ib txheej ntawm cov hlwb ze ntawm cov tawv ntoo.
Ib yam li ntawd ib tug yuav nug, ntev npaum li cas rov qab tau dendrochronology hnub?
Tam sim no muaj chronologies sib tam li nyob deb raws li 11, 000. Nyob rau sab hnub poob, zoo li ntawm Dillard qhov chaw uas Time Team America tau khawb, tus tswv chronology mus. rov qab mus txog 322 B. C. Tab sis yog tias tsob ntoo feem ntau tsuas yog nyob rau ib puas xyoo los yog li ntawd, yuav ua li cas ua tau ib tug tswv chronology mus li ntawd nyob deb hauv lub sijhawm?
Ib yam li ntawd, puas yog dendrochronology thiab txoj kev sib tham meej? Ib tug scientific hnub yog ib qho kiag li (tshwj xeeb rau ib qho taw tes hauv lub sijhawm) lossis txheeb ze (hnub nyoog qis dua lossis laus dua lwm yam). Dendrochronology , los yog tsob ntoo-ntiv nplhaib sib tham , muab kiag li hnub nyob rau hauv ob txoj kev sib txawv: ncaj qha, thiab los ntawm calibrating radiocarbon cov txiaj ntsig.
Ib tug kuj nug, Tree Rings puas ntseeg tau?
Sau ntawv rau Kev ntseeg tau Feem ntau tsob ntoo hom yog ntseeg tau ; oak yog feem ntau tsob ntoo txhim khu kev qha hom rau tsob ntoo rings - tsis muaj ib qho xwm txheej paub txog ib xyoos uas ploj lawm kev loj hlob nplhaib.
Koj ua li cas hnub tsob ntoo muaj sia?
Yog koj paub thaum twg tsob ntoo tau cog, koj tuaj yeem yooj yim thiab raug txiav txim siab nws lub hnub nyoog. Qhov thib ob yog qhov tseeb tshaj plaws los kwv yees tsob ntoo hnub nyoog yog suav cov rings txhua xyoo ntoo kev loj hlob. Cov nplhaib txhua xyoo tuaj yeem suav nrog ob txoj kev sib txawv. Koj tuaj yeem rho tawm qhov tseem ceeb increment los ntawm lub tsob ntoo siv ib tug increment borer.
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