老红砂是中国东南沿海独具特色的第四纪沉积物。
The "Old Red Sand" is the Quaternary deposits with distinctive features in the coastal area of southeast China.
第四纪沉积物的天然热释光中储存有自沉积以来的累积辐射剂量。
The natural thermoluminescence in Quaternary sediment has stored accumulated irradiated dose since the sediment deposited.
利用水流能量指数,分析了洞庭盆地第四纪沉积环境的演变特征。
The evolution of sedimentary environment in the Quaternary in Dongting Basin is analyzed by using the flow energy index.
观测结果可用来确定第四纪沉积物复盖区断裂的位置和可见断裂的活动性。
So it is possible to determine a sitting of fault covered with Quaternary sediment and its activity by means of measurement of mercury-vapour containt.
第四纪花粉无酸碱分析方法,是从第四纪沉积物中提取花粉的一种行之有效的方法。
The acid_alkali_free analysis is a very useful method for extraction of pollen from Quaternary sediments because of its technical simplicity and easiness in operation.
该区内梅山组泥质岩和晚上新世-第四纪沉积的质纯泥质岩、粘土层为盆地两套区域盖层。
The shale in Meishan formation and the pure shale and argillic horizon of Late Pliocene-Quaternary are the two sets of caprock in the area.
表土沉积物中的植硅体分析是了解第四纪沉积物中植硅体组成的重要途径,也是重建第四纪古环境的基础。
Phytolith analysis in the surface soils is not only an important approach of studying phytolith assemblages in the Quaternary sediments, but also a basis of Quaternary environment reconstruction.
本文结合第四纪沉积物类型的划分,讨论了遥感分类中最佳波段和波段组合的选取以及特征空间的扩充方法。
The optimum selection of bands and its combinations in remote sensing classification and the method for expanding feature space are presented.
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.
[王开发,张玉兰。宁波平原晚第四纪沉积的孢粉、藻类组合及其古地理。地理科学,1985,5(2):145-151。]。
Wang Kaifa, Zhang Yulan. Palynological assemblages from the late Quaternary sediments of Ningbo Plain in Zhejiang Province and its paleogeography. Scientia Geographica Sinica, 1985,5(2):145-151.
测定碎屑矿物沉积后吸收的古剂量是第四纪沉积物热释光测年的关键。测定古剂量的方法有三种,即部分晒退法、残余热释光法和再生热释光法。
Determination of the paleodose absorbed by debris minerals in sediments after deposition is a key course for TL dating of the Quaternary sediments.
通过对宜昌地区第四纪沉积物中峨眉山玄武岩砾石的寻找和研究,可以确定三峡以西物质搬运至宜昌地区的时间,从而为长江三峡贯通时间的确定提供参考。
Via searching and finding the E mei Mountain basalt gravels in the Quaternary sediments in the Yichang area, the cutting-through time of the Three Gorges can be determined.
盆地发育时间短(主要集中在第四纪)、成岩时间短、成岩程度低的三角洲沉积形成了这里优越的聚集条件。
The delta deposit characterizing short basin growth time (it's mainly concentrated onto Quaternary), short lithogenous time and low lithogenous level forms an excellent accumulation condition here.
第四纪的沉积物大部分未变形。
上新世和第四纪主要为浅海陆架及半深海充填沉积。
There were mainly neritic shelf and bathyal filling sedimentation in the Pliocene and Quaternary.
中国东部(含庐山)第四纪冰期之争,表现在地貌、沉积与冰川发生条件三个方面。
The disputes about the Quaternary Ice Age in eastern China (including Mount Lushan) involve three aspects, i. e. topography, sedimentation and conditions of glaciation.
本区第四纪独特的沉积环境是形成大型生物气藏最重要的地质条件。
The unique depositional environments of this area in the Quaternary are the important conditions for forming the large scale biogenic gas pools.
在黄河源区支流日玛曲河谷发现第四纪湖相沉积,以含砾粉砂、粉砂、粘土互层组合为特征,形成河流的第一阶地基座。
A group of Quaternary gyttjor are discovered in Rimaqu basin in the Yellow River source area which formed the first terrace foundation, included gravel aleurite, aleurite and clay layer.
页岩中风成粉砂沉积的发现,可以进一步为研究有关湖相页岩和第四纪纹泥的古气候变化、正确恢复古湖泊沉积环境提供良好的指标。
The aeolian silty sand in shale can provide good guide to study of paleoclimate about lacustrine shale and varve, and to reconstruct sedimentary environment of paleolake accurately.
柴达木盆地东部地区是第四纪的沉积与沉降中心,内陆湖泊相的沉积厚度大、分布广泛。
The eastern part region of Qidam basin is a Quaternary depositional and subsidence center being large and extensively distributed.
北海市区广泛分布较厚的第四纪松散沉积物,地貌上为似扇形准平原。
Quaternary loose and thicker deposits are widespread in Beihaitown, forming a fan-shaped peneplain in geomorphology.
不同母质发育的土壤相比,以石灰岩风化物发育的水稻土肥力水平较河流沉积物和第四纪红色粘土发育的水稻土高。
Among them the paddy soil developed from the weathering product of limestone has much higher nutrient contents than the paddy soils developed from river alluvium and Quaternary Red Clay does.
中国黄土高原的黄土,作为全球变化研究的信息载体,是连续性最好、蕴藏信息最丰富的第四纪陆相沉积物。
As a information carriers of the research of global change, the loess in Chinese loess Plateau is the most consecutive sediment and has the most abundance information since Quaternary.
黄土是指第四纪时期特定环境条件下形成的一种特殊的土状沉积物。
Loess deposition is a special kind of dust-sediment that came into being under particular environments in quaternary period.
第四纪的沉积物大部分未变形。
河北平原东部第四纪更新世沉积环境决定本区地下水为氟离子富集区。
The high concentration of fluorine anion in groundwater is determined by the Pleistocene sedimentary environment in east Hebei plain.
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.
盆地中充填有第四纪湖相-冲积相厚层沉积,有砂锡聚集,局部富集成矿床。
The basin was filled with thick sediments of Quaternary lake and alluvial facies and accumulated with tin placer which is locally enriched to be commercial deposit.
利用洞穴次生化学沉积物进行古环境重建是第四纪全球变化研究的一个热点,而碳氧稳定同位素是最重要的气候替代性指标。
The carbon and oxygen stable isotopes have been considered to be the most effectual proxy indexes in reconstructing the paleoclimate of Quaternary.
利用洞穴次生化学沉积物进行古环境重建是第四纪全球变化研究的一个热点,而碳氧稳定同位素是最重要的气候替代性指标。
The carbon and oxygen stable isotopes have been considered to be the most effectual proxy indexes in reconstructing the paleoclimate of Quaternary.
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