相比于大陆冰川沉积物,海洋沉积物提供了更完整的更新世时期的地质记录。
Ocean sediments presented a much more complete geologic record of the Pleistocene than continental glacial deposits did.
数百万年后,强大的地质力量,比如海底火山,会掀起海洋沉积物,形成新的陆地。
After millions of years, powerful geological forces, like underwater volcanoes lift up the ocean sediments to form new land.
全新世的沉积物中含有较新的动植物遗迹,因此很容易从地质学上区分这两个时期。
Holocene sediments contain remnants of more recent plants and animals, so it's pretty easy to differentiate geologically between these two Epochs.
在20世纪后期,地质学家和海洋学家在研究海洋沉积物时发现了能够证明海洋变暖和变冷的化石,并修正了这一观点。
This idea was modified in the late twentieth century, when geologists and oceanographers examining oceanic sediment found fossil evidence of warming and cooling of the oceans.
地质学家杰拉德·邦德注意到,一些沉积物颗粒被氧化铁染色,这表明它们起源于冰川覆盖红砂岩露头的地方。
Geologist Gerard Bond noticed that some of the sediment grains were stained with iron oxide, evidence that they originated in locales where glaciers had overrun outcrops of red sandstone.
地质学家关注沉积物,通过它们地质学家可以揭示过去,特别是在地球从一个地质年代跨越到另一个地质年代时那些巨大的时间跨度。
Geologists care about sediments, hammering away at them to uncover what they have to say about the past-especially the huge spans of time as the Earth passes from one geological period to another.
沉积物内含有孢粉化石,而每一粒孢粉都含有能告诉我们答案的碳原子标记,容许我们按照地质时间的顺序分析样品。
The sediments contained fossil pollen. Each grain had a telltale carbon atom signature, allowing them to put the samples in chronological order.
米兰柯维奇旋回在地质历史时期具有相对的稳定性,其在地层中的记录可以作为一座精确的“沉积物钟”和辅助的测龄工具。
The Milankovitch cycle, whose records in strata can be considered both as an accurate "sediment clock" and as an auxiliary dating tool, is relatively stable in the geologic history.
泥石流沉积物作为晚更新世一种特殊沉积类型,是在特定的地质过程和地理环境中形成的。
As a special deposit type, debris flow deposit forms in specifically geological structure and geographical environment.
此外,该方法还能较准确地确定断裂构造的位置,在第四系厚沉积物覆盖区,可为地质填图提供较好依据。
Furthermore, this method can also indicate the position of fracture structure, and can provide good evidences for geological mapping in the quaternary thick-sedimentary coverage area.
其主要原因除与油气地质条件相关外,还取决于近地表沉积物的性质,以及地理、地貌的景观条件。
In addition to the petroleum geologic conditions, the main causes are also related with the properties of near surface sediments and the geographical and geomorphologic landscape conditions.
本文从地质构造、岩石结构、地貌、湖底形态及室内沉积物分析资料几个方面论证了喀纳斯湖的成因。
This article proves the genesis of Kanasi lake from the respects of geologic structure, landforms, formation of lake bottom and analysis material of sediments in laboratory.
层序多显示相对的海平面以及广泛分布的不整合,沉积作用的过程,沉积物的来源,气候和构造活动等随地质时代变化的旋回性。
Sequences tend to show cyclicity of changes in relative sea level and widespread unconformities, processes of sedimentation and sources of sediments, climate and tectonic activity over time.
多种地质作用可造成年青的松散沉积物发生变形。
The late-formed loose deposits are liable to be distorted by the several kinds of geological processes.
下一步的焦点就是一条地质记录(关于冰核,又或许仅仅是湖泊沉积物)。它是官方所能接受的参考数据。
Thee next step will be to point to a single piece of the geological record (an ice core, perhaps, or samples from lake sediments) that can serve as the officially accepted reference point.
查明了通辽地区第四纪地质实体各期岩相古地理、沉积构造特征、地层空间结构、沉积物粒度的空间变异,据此进行了地层分区。
Such as the sediment structure characteristic of paled geography and formation the spatial structure of formation, the spatial variation of sediment size.
在沉积物中汞含量的比较也是得到相同的结果,这主要与矿区的地质背景、汞矿带的分布、还与汞矿开采规模、汞矿停产时间有关。
These are mainly attributed to the mining's geological background, the distribution of mercury belt and the mercury mining scale, and the mine closure time.
此外,还介绍了沉积物esr测年在地质上的应用。
In addition, some geological applications of ESR dating of the sediments were introduced.
通过对大别山北缘第四纪沉积物的研究,分析近百万年来该地区的地质构造变化及其变化与淮河的形成、演化的关系。
Studies on the land sediment laying over the Dabie Mountains, can help us to find the change in this area and the law between this change and Huaihe river's evolvement.
文中提供的一些海底沉积物的地质分析、14C测年等资料和采用的研究方法对今后南海北部大陆架的第四纪地质、海底沙波以及海底稳定性研究均有参考价值。
Some of the geological analyses on seafloor sediments, 14C data and the adopted methods provided in the paper have all a certain reference value for future studies on Quaternary geology, …
当洪水消退 后,他们留下的地质特征在规模上完全是瓦格纳式的 宏篇巨制:砂砾和沉积物堆积的沙洲超过250米高;
When the waters receded, they revealed geological features that are positively Wagnerian in scale: bars of gravel and sediment heaped up more than 250 metres high;
在海洋地质调查中,如何取得好的沉积物样品是每一位海洋地质学家所向往的,而获得好的沉积物样品的关键又很大程度上取决于先进的海洋调查仪器的使用。
In a Marine geological survey, the key to obtaining good sediment samples is, to a very marked degree, decided by using what kinds of advanced Marine survey instruments.
在海洋地质调查中,如何取得好的沉积物样品是每一位海洋地质学家所向往的,而获得好的沉积物样品的关键又很大程度上取决于先进的海洋调查仪器的使用。
In a Marine geological survey, the key to obtaining good sediment samples is, to a very marked degree, decided by using what kinds of advanced Marine survey instruments.
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