查询词典 fossiliferous

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.

对野外识别出的具有不同风化程度的3类粉砂岩进行了详细的手标本特征对比和扫描电子显微镜测试对比研究。

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，在这段时期地球上物种繁多。

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.

有不计其数的化石来自于寒武纪，尽管寒武纪被认为是动物最先出现的时期，但实际上，动物出现的最早证明来自于一个地质学上的突破发现，即存在于6.35亿与5.42亿年之间的埃迪卡拉动物群化石的发现，这个时间正位于大冰川期结束，化石大量被保存的寒武纪开始之前。

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.

我国湘西大马－亥冲口－峨梨塘地区有大量三叶虫化石产出，它是我国南方已知含丰富化石产地之一。

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.

在前寒武纪-寒武纪界限附近，δ〓C，δ〓O的负异常及〓Sr/〓Sr的正异常暗示了震旦纪到寒武纪之间发生的生物灭绝事件，而随之出现的δ〓C，δ〓O的正异常，则可能指示了寒武纪初的生物大爆发。

In addition, 3 outcrops in the Chiahsien area were involved into this study, which including Ssutehsiang, Paiyunhsiangku, and Niupu. Purposes of this fieldwork have two folds. One is to compare the specific occurrences of carbonate-cemented mudstones in TKS, HKS, PPS, FS, and those in the Chiahsien area. The other is to recheck Hayasaka's descriptions (1932) about the unique occurrences of fossil lucinids bivalves and fossiliferous marls of Chiahsien and the southeastern Shoushan.

此外，选定甲仙地区四德巷、白云仙谷以及牛埔等三个剖面，以做为与在大岗山、小岗山、半屏山以及凤山等地基底泥岩中所见特殊碳酸盐胶结泥岩产状的比较，同时也藉此验证Hayasaka（1932）关於甲仙四德巷与寿山东南侧矿场泥岩顶部地层中，所含泥灰岩与大量巨带蛤化石的记载。

The fossiliferous Middle Carboniferous and Permian are well developed in the Deri′angma-Xiala section in the Yunzhug area, Xainza County, northern Tibet.

西藏北部申扎县永珠地区德日昂玛-下拉剖面中石炭系和二叠系地层发育完整，出露良好，化石丰富。该剖面中查果罗玛组碳酸盐岩地层和下拉组碳酸盐岩地层之间的碎屑岩夹灰岩地层，在沉积上表现为冰海相杂砾岩，在古生物化石面貌上表现为特提斯-冈瓦纳古生物群混生。

A schematic model was proposed to illustrate the occurrences of various lithologies and lithofacies associations. The erosional surfaces on siliciclastic mudstones, funnel-shaped structure, and the exhuming of massive cold-seep carbonates exposed might have been occurred concurrently during a tectonic unstable time in SW Taiwan. The deposition of fossiliferous mudstone interfingered with the conglomerate lithofacies, and represented the rapid facies transition from siliciclastic (non-carbonate) into carbonate environment.

综合岩相观察结果，建构一个符合台湾西南部更新世珊瑚礁与基底泥岩接触关系的沉积相模式；其中，基底泥岩顶部的不规则冲蚀面、充填碳酸盐胶结泥岩砾与碳酸岩烟柱的漏斗状沉积，以及块状冷泉碳酸盐岩的出露，可能均为区域地质构造活动时期所造成；至於与含化石泥岩同时沉积的砾岩相，可能均为基底泥岩在快速浅化的过程中所沉积，标志古环境由矽质碎屑快速转变为碳酸盐环境的过程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。