Cov kws tshawb nrhiav tau tshawb pom cov xim tiag tiag ntawm ib pawg kab pob txha uas raug ntes hauv amber hauv Myanmar li 99 lab xyoo dhau los. Cov kab thaum ub suav nrog cuckoo wasps, water flies thiab beetles, tag nrho cov no muaj xim xiav, ntshav thiab ntsuab.
Xwm txheej muaj ntau yam zoo nkauj, tab sis cov pob zeb tsis tshua muaj pov thawj ntawm cov xim qub ntawm cov tsiaj txhu. Txawm li cas los xij, cov kws tshawb fawb txog paleontologists tam sim no tab tom nrhiav txoj hauv kev los xaiv cov xim los ntawm cov pob zeb uas tau khaws cia zoo, txawm tias lawv yog dinosaurs thiab cov tsiaj reptiles ya lossis cov nab thiab cov tsiaj txhu thaum ub.
Kev nkag siab txog xim ntawm cov tsiaj txhu uas ploj mus lawm yog qhov tseem ceeb heev vim nws tuaj yeem qhia ntau yam rau cov kws tshawb fawb txog tus cwj pwm ntawm tsiaj. Piv txwv li, xim tuaj yeem siv los nyiam cov khub lossis ceeb toom cov tsiaj nyeg, thiab txawm tias pab tswj qhov kub thiab txias. Kev kawm ntxiv txog lawv kuj tseem tuaj yeem pab cov kws tshawb fawb kawm ntxiv txog ecosystem thiab ib puag ncig.
Hauv kev tshawb nrhiav tshiab, pab pawg tshawb fawb los ntawm Nanjing Institute of Geology and Palaeontology (NIGPAS) ntawm Suav Academy of Sciences tau saib 35 tus qauv amber uas muaj cov kab uas tau khaws cia zoo. Cov pob txha tau pom nyob rau hauv lub qhov tsua amber hauv sab qaum teb Myanmar.
...Koom nrog ZME Newsletter kom tau txais cov xov xwm zoo kawg nkaus txog kev tshawb fawb, cov yam ntxwv thiab cov xov xwm tshwj xeeb. Koj yuav tsis ua yuam kev nrog ntau dua 40,000 tus neeg sau npe.
"Amber yog nruab nrab-Cretaceous, kwv yees li 99 lab xyoo, hnub rov qab mus rau lub hnub nyoog kub ntawm cov dinosaurs," tus sau thawj coj Chenyan Cai tau hais hauv kev tshaj tawm. "Nws yog cov resin tsim los ntawm cov conifers thaum ub uas loj hlob hauv ib puag ncig rainforest. Cov nroj tsuag thiab tsiaj txhu uas raug ntes hauv cov resin tuab raug khaws cia, qee qhov nrog kev ua neej tiag tiag."
Cov xim hauv xwm feem ntau poob rau hauv peb pawg dav: bioluminescence, pigments, thiab cov xim ntawm cov qauv. Cov pob zeb amber tau pom cov xim ntawm cov qauv uas feem ntau muaj zog thiab zoo nkauj heev (suav nrog cov xim hlau) thiab yog tsim los ntawm cov qauv teeb pom kev me me uas nyob ntawm tus tsiaj lub taub hau, lub cev thiab ceg.
Cov kws tshawb nrhiav tau txhuam cov pob txha siv cov ntawv xuab zeb thiab hmoov av diatomaceous. Qee cov xim av daj raug zom ua cov nplai nyias heev kom cov kab pom tseeb, thiab cov xim av daj ib puag ncig yuav luag pob tshab hauv lub teeb ci ntsa iab. Cov duab suav nrog hauv kev tshawb fawb tau hloov kho kom kho qhov ci thiab qhov sib piv.
"Hom xim uas khaws cia rau hauv cov pob zeb amber hu ua xim qauv," Yanhong Pan, tus sau ntawm txoj kev tshawb fawb no, tau hais hauv ib daim ntawv tshaj tawm. "Cov qauv nanostructures ntawm qhov chaw ua rau cov wavelengths tshwj xeeb ntawm lub teeb tawg," "tsim cov xim muaj zog heev," Pan hais, ntxiv tias "qhov no yog lub luag haujlwm rau ntau yam xim uas peb paub txog hauv peb lub neej txhua hnub."
Ntawm tag nrho cov pob zeb fossils, cuckoo wasps yog qhov tshwj xeeb tshaj yog, nrog rau xim xiav-ntsuab, daj-liab, violet thiab ntsuab hues ntawm lawv lub taub hau, thorax, plab thiab ceg.Raws li kev tshawb fawb, cov qauv xim no sib xws nrog cuckoo wasps uas tseem muaj sia nyob niaj hnub no. Lwm yam sawv cev suav nrog cov kab xiav thiab ntshav thiab cov yoov tub rog ntsuab tsaus hlau.
Siv cov tshuab hluav taws xob microscopy, cov kws tshawb fawb tau ua pov thawj tias cov pob zeb fossil amber muaj "cov qauv exoskeleton uas tau khaws cia zoo."
"Peb cov kev soj ntsuam qhia tau hais tias qee cov pob txha amber yuav khaws cov xim zoo ib yam li cov kab uas tau pom thaum lawv tseem muaj sia nyob li 99 lab xyoo dhau los," cov kws sau ntawv tshawb fawb tau sau. "Ntxiv mus, qhov no tau lees paub los ntawm qhov tseeb tias cov xim xiav-ntsuab feem ntau pom muaj nyob rau hauv cov kab laug sab cuckoo uas tseem muaj sia nyob."
Fermin Koop yog ib tug kws sau xov xwm los ntawm Buenos Aires, Argentina. Nws muaj daim MA hauv Ib puag ncig thiab Kev Txhim Kho los ntawm University of Reading, UK, tshwj xeeb hauv kev sau xov xwm ib puag ncig thiab kev hloov pauv huab cua.