Three types of fossiliferous siltstones have been identified in the filed and detailed observations as well as comparisons of diagenetic and weathering attributes have also been documented.

對(duì)野外識(shí)別出的具有不同風(fēng)化程度的3類粉砂巖進(jìn)行了詳細(xì)的手標(biāo)本特征對(duì)比和掃描電子顯微鏡測(cè)試對(duì)比研究无码字幕AV一区二区三区蜜芽。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

而且欧美一级特黄大片aaa，在這段時(shí)期地球上物種繁多老妇性交。

Though the fossiliferous explosion known as the Cambrian period is often thought of as the beginning of animal life, animals actually appeared for the first time during a geological twilight called the Ediacaran, 635m-542m years ago, between the end of a great ice age and the arrival of all those well-preserved Cambrian fossils.

有不計(jì)其數(shù)的化石來(lái)自于寒武紀(jì)欧美激情第一欧美精品完整版，盡管寒武紀(jì)被認(rèn)為是動(dòng)物最先出現(xiàn)的時(shí)期，但實(shí)際上在线超碰，動(dòng)物出現(xiàn)的最早證明來(lái)自于一個(gè)地質(zhì)學(xué)上的突破發(fā)現(xiàn)无码AA在线，即存在于6.35億與5.42億年之間的埃迪卡拉動(dòng)物群化石的發(fā)現(xiàn)，這個(gè)時(shí)間正位于大冰川期結(jié)束免费a片在线，化石大量被保存的寒武紀(jì)開(kāi)始之前国产哟哟视频在线观看网站。

There are a number of trilobite fossils in Dama-Haichongkou-Elitang area western Hunan, which is known as one of the most richly fossiliferous area in south China for Middle and Late Cambrian trilobite faunas.

我國(guó)湘西大馬－亥沖口－峨梨塘地區(qū)有大量三葉蟲化石產(chǎn)出，它是我國(guó)南方已知含豐富化石產(chǎn)地之一欧美跨性人妖XXXX极品另类网站。

A negative abnormal of δ〓C,δ〓O values and positive abnormal of 〓Sr/〓Sr values from the fossiliferous section of the Lowest Cambrian Meishucun Formation implies life depopulation and following explosion of life across the Precambrian\Cambrian boundary.

在前寒武紀(jì)-寒武紀(jì)界限附近，δ〓C色综合另类，δ〓O的負(fù)異常及〓Sr/〓Sr的正異常暗示了震旦紀(jì)到寒武紀(jì)之間發(fā)生的生物滅絕事件九九视频在线观看免费不卡，而隨之出現(xiàn)的δ〓C，δ〓O的正異常a变态另类久久9999性，則可能指示了寒武紀(jì)初的生物大爆發(fā)中文字幕在线亚洲二区欧美。

fossiliferous：含化石的

fossilbearing 含化石的 | fossiliferous 含化石的 | fossilification 化石化

fossiliferous：含有化石的

fossilation 成化石 | fossiliferous 含有化石的 | fossilify 使變成化石

fossiliferous strata：含化石地層

fossiliferous porosity 含化石孔隙 | fossiliferous strata 含化石地層 | fossiliferous 含化石的

fossiliferous porosity：含化石孔隙

fossiliferous micrite 含化石泥晶灰?guī)r | fossiliferous porosity 含化石孔隙 | fossiliferous strata 含化石地層

fossiliferous micrite：含化石泥晶灰?guī)r

fossilation 化石化作用 | fossiliferous micrite 含化石泥晶灰?guī)r | fossiliferous porosity 含化石孔隙