iifosili opalized

Iifosili zibaluleke kakhulu xa kufikwa ekwazini ixesha elidlulileyo lezidalwa ezazikhe zahlala kwesi sijikelezi-langa. Enye yeefosili ezinokunika ulwazi oluninzi ukuba yi iifosili opalized. Iqhekeza elimbhoxo lifunyenwe kwisiqithi saseJava eIndonesia kwaye liqulethe izinto ezintle. Sinambuzane esigcinwe kwiimeko ezimangalisayo ezinokuba phakathi kwe-4 kunye ne-7 yezigidi zeminyaka ubudala kwaye yinto ekhethekileyo efunyenweyo ukuza kuthi ga ngoku.

Kweli nqaku siza kukuxelela yonke into ekufuneka uyazi malunga neefosili opalized kunye nolwazi olukhulu banokusinika.

iifosili opalized

Ukuza kuthi ga ngoku, ezininzi izinambuzane zakudala zifunyenwe kwi-amber, ilitye elinqabileyo elilingana nexabiso elenziwe kwiintlaka zefosili yemvelaphi yesityalo. Xa izilwanyana zibanjiswe kwi-resin entsha, uya kuzingcwaba ngokukhawuleza ukuze zigcine iintsalela zazo, ngokuqhelekileyo iinkcukacha ezibuthathaka.

Nangona kunjalo, ukubunjwa kwendalo kwe-opal kubandakanya ukuxinana kwezisombululo ze-silica kwimiqolomba engaphantsi kwamawaka okanye kwizigidi zeminyaka, ukuphakamisa umbuzo wendlela yokugcina izinambuzane ngale ndlela.

Kufunyenwe usana lwenyoka oluneminyaka engama-99 lezigidi ubudala, eyeyokuqala yohlobo lwayo. I-fossil i malunga ne-5 cm ubude kwaye iqulethe i-97 vertebrae. Le yifosili yokuqala yenyoka encinci ukufunyanwa, kwaye ikwayinyoka yokuqala ukufunyanwa kwi-amber. Abaphandi bakholelwa ukuba bafumene iqhekeza lesikhumba senyoka yabantu abadala kumaqhekeza ahlukeneyo.

Ifosili enezinambuzane

Le yinto engenakwenzeka kakhulu, kodwa zinjalo ke nezinye izinto ezingaqhelekanga nezimangalisayo kwindalo ukuba sikholelwa ukuba azikho okanye azinakwenzeka ngokwethiyori, de zingqineke ziyinyani. Isampulu okwangoku isezandleni zabucala kwaye ayikafundwa ngokweenkcukacha ngamapaleontologists okanye i-geochemists. Nangona kunjalo, ukuba kuqinisekisiwe, oku kufunyenweyo akubonisi nje umthombo ongaziwayo weefosili ezixabisekileyo, kunokutshintsha ukuqonda kwethu amatye anqabileyo athandwayo.

Lo mzekelo uyaziwa ukuba ukhona ukususela ngo-2017, kunye nomfanekiso wesinambuzane sesibini esinokubakho kwi-opal evela kumgodi ofanayo weJava nawo wabonwa. Nangona kunjalo, ekubeni uyibona kuphela kwisithombe kwaye awuzange upapashe naluphi na uphando lwesayensi, kunzima kuwe ukuba ubonise uluvo oluchanekileyo kule nto.

Iifosili ezininzi ze-opal zifunyenwe kwi-Lighting Ridge e-Australia, nangona inkqubo yahlukile. Xa isisombululo se-silica sigcwalisa isithuba somhlaba esithathwe ngamathambo namazinyo kwaye sijike sibe yi-opal, la mathambo "okubuyisela" ayakhiwa, njenge-gelatin kwi-mold. Phil Bell, ingcali yepaleontologist kwiYunivesithi yaseNew England eArmidale, Kutshanje iOstreliya ichaze uhlobo olutsha lwedayinaso evela kumaqhekeza efosili ejikwe yaba zii<em>opals ngolu hlobo.

Iifosili ze-Opalized ziye zahamba emhlabeni izigidi zeminyaka, zityunyuziwe, zishushu, njl. Nangona kungenakwenzeka, kuyinto eqhelekileyo ukuyithandabuza ingcamango yokuba izinambuzane zigcinwa ngolu hlobo. I-opalized Javanese wood fossils ixhaphakile, ebonisa ukuba i-resin yezityalo inokufakwa kwi-opal.

Ukubaluleka kweefosili opalized

Iifosili ezininzi ze-opal zifunyenwe kwi-Lighting Ridge e-Australia, nangona inkqubo yahlukile. Xa isisombululo se-silica sigcwalisa isithuba somhlaba esithathwe ngamathambo namazinyo kwaye sijike sibe yi-opal, la mathambo "okubuyisela" ayakhiwa, njenge-gelatin kwi-mold. UPhil Bell, isazi ngezidalwa zamandulo kwiYunivesithi yaseNew England eArmidale, eOstreliya, kutshanje uye wachaza uhlobo olutsha lwedayinaso evela kumaqhekeza efosili eye yajikwa yaba zii<em>opals ngale ndlela.

Iifosili ze-Opalized ziye zahamba emhlabeni izigidi zeminyaka, zityunyuziwe, zishushu, njl. Nangona kungenakwenzeka, kuyinto eqhelekileyo ukuyithandabuza ingcamango yokuba izinambuzane zigcinwa ngolu hlobo. Iifosili zomthi zeJavanese opalized zixhaphakile, ebonisa ukuba i-resin yesityalo inokufakwa kwi-opal.

I-Opals idla ngokuzalisa izikhewu. Kule meko, i-trunk ingaba yi-opal kwaye inxalenye yayo ye-amber inokubanjwa. Umzekelo owaziwayo we-amber yaseKhanada wagcwalisa iintanda ngeqhekeza lomthi, elathi lajika laba sisilica ngaphandle. Lo mzekelo mtsha usenokuba udlule kwinkqubo efanayo, kodwa iseyintelekelelo de uhlalutyo lwemichiza kwaye abaphandi baqinisekise ngononophelo ukulondolozwa kwezinambuzane.

ama-Amon

Iifosili ze-Amonite zivela kwi-ammonites ukusuka kwi-cephalopod mollusks. Ezi zidalwa zazihlala kwiplanethi yethu kwiminyaka ezigidi ezingama-400 eyadlulayo, kude kube kwiminyaka yezigidi ezingama-65 eyadlulayo, ilitye elikhulu ububanzi beekhilomitha ezili-10 zatshabalalisa i-70% yezinto eziphilayo zomhlaba, kuquka umlinganiswa wethu. Kodwa kwanezona zidalwa zithobekileyo zinokuwuphawula umhlaba.

Nangona imilo ilula ngokwentelekiso, ifosili yeammoni inika ubutyebi bolwazi kwiipaleontologists kwaye ingasetyenziselwa ukumisela iminyaka kunye nokufundwa kokwakheka kwamatye ngamanye amaxesha.

Ama-Amon zizilwanyana zaselwandle eziye zakhula kwi-Paleozoic kunye ne-Mesozoic Era, zizihlobo ezingapheliyo ze-squid, i-octopus, i-cuttlefish, kunye ne-nautilus esaziyo namhlanje. Ngenxa yolwakhiwo olulodwa lweqokobhe, bayakwazi ukuqubha kwaye iqokobhe lahlulwe kuluhlu lwamagumbi omoya.

Umoya unika izilwanyana ukunyakazela kwaye iiammonite zisebenzisa ijet propulsion ukuhamba elwandle njengeecephalopods zangoku.

Kuba ii-ammonites zihlala kwindawo yaselwandle kuphela, ubukho bazo bubonisa indawo yeelwandle zangaphambili ezifana noLwandle lweTethys. Amawakawaka eentlobo achazwe kwaye asasazwa malunga ne-1.800 genera ngeendlela ezahlukeneyo. I-Ammonite isilwanyana saselwandle esikhuselwe yiqokobhe elilodwa elenziwe kwiminerali ebizwa ngokuba yi-aragonite, ngokuqhelekileyo inxeba kwi-spiral spiral, ukuya kwi-2 yeemitha ububanzi.

Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga neefosili ze-opalized, ukubaluleka kwazo kunye nolwazi onokusinika lona malunga nezilwanyana zexesha elidlulileyo.