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第四纪
相关语句
  quaternary
    PRINCIPLE OF QUATERNARY SEDIMENT NATURAL THERMOLUMINESCENCE SURVEY FOR PROSPECTING OIL RESERVOIR AND ITS APPLICATION
    第四纪沉积物天然热释光测量勘查深部油气藏的方法原理及应用
短句来源
    Surface Character and Sedimentary Environment of the Quartz Grains in the Quaternary Strata in Kunlun Mountains Pass Area
    昆仑山垭口地区第四纪地层石英砂表面特征与沉积环境
短句来源
    THE CONTENTS,PRINCIPLES, AND METHODS IN REGIONAL GEOLOGICAL INVESTIGATION FOR 1:50 000 MAP OF QUATERNARY GEOLOGY
    1:5万区域地质调查中第四纪地质的研究内容与图件表示原则及方法
短句来源
    The results have shown that Tangshan seismogenic fault is a NW dipping dextral strike slip Quaternary contemporaneous fault,which offsets the Holocene(Q 4),late Pleistocene (Q 3),middle Pleistocene(Q 2) and early Pleitocene(Q 1) strata.
    结果表明:唐山地震断层是一条倾向NW的右旋走滑第四纪同生断裂,它错断了全新统(Q4)、晚更新统(Q3)、中更新统(Q2)和早更新统(Q1)地层。
短句来源
    The P-wave reflection method is based on the fact that whether the fault of bedrock extends up to Quaternary strata Q 3 or not.
    认为:在对基岩断层的活动性评价中,反射纵波法根据基岩断层是否向上延伸到第四纪Q3地层内,而剪切波分裂法则根据由Q3地层内界面反射横波确定的各向异性。
短句来源
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  quaternary period
    It suggests that gold accumulation occurred in the every main stage of geologic history of Fujian from Late-Archaean era to Quaternary period but the scale and the feature of the gold accumulation are different in different stage and Yanshan metallogenic epoch is the most important period of mineralization of Fujian gold deposits.
    提出福建省内自晚太古代至第四纪的各个地质历史发展的主要阶段均有金的富集作用,但不同阶段所形成的金富集规模及特征明显有别,燕山期为福建省金矿最重要的成矿期。
短句来源
    By the Quaternary period since its emergence in the Tertiaryone, the lake had been subjected to two diagenetic evolutions from 17ka ago,leading to accumulation of salt minerals like mirabilite through repeat evaporation and densification of the lake waters and increasing diagenesis.
    盐湖形成于第三纪,第四纪以来,曾经历2次成岩期,约自17kaB.P.湖水多次蒸发浓缩,成岩作用加强,形成芒硝等矿产
短句来源
    The mineralization is mainly related to chemical weathering under the moist and hot condition in the Middle Pleistocene of Quaternary Period. The deposit was found by examing geochemical exploration anomaly.
    成矿物质来自含矿原岩,成矿作用主要与第四纪中更新世湿热条件下的化学风化作用有关。
短句来源
    In China, this kind of deposit is mainly formed in the alternatingly warm - and - wet subtropical region, whose geographical latitude is not higher than North Lalitude 26°. The low and gentle - sloped hill in which the average annual temperature is above 20℃ , and the annual rainfall is not less than 1000mm is the most beneficial place for the formation of this kind of deposit, The minerogenetic time must be longer than the Quaternary Period(Q).
    我国这类矿床主要形成于纬度不大于北纬26℃的温湿交替的亚热带地区,年平均气温高于20℃、年降雨量不小于1000mm的低缓山丘最有利于成矿,成矿时间不得短于第四纪.
短句来源
    Most of gold deposits formed in Yanshan Period and placer gold deposits formed in Quaternary Period.
    大多数岩金矿形成于燕山期 ,砂金形成于第四纪
短句来源
  “第四纪”译为未确定词的双语例句
    Some characteristics of porous tuff occurring in the Linli Basin of Hunan Province are studied systematically with respect to its mineralogy, petrology and porosity by means of XRD, IR, DTA\|TG, SEM and TEM.
    本文采用XRD、IR、DTA TG、SEM和TEM等方法 ,较系统地研究了产于湖南临澧盆地第四纪多孔凝灰岩的矿物岩石学及其孔隙特征。
短句来源
    During Middle-Late Carboniferous to Permian, the rifting was relatively weak, yet post-volcanic hot water activities were rather frequent, and the third source bed (i.e. ,C2+3-P| carbonate rocks) which is thousands of meters thick was formed, locally (such as in the Laochang mining district) there came into being stratoid and lenticular Ag-Pb-Zn orebodies hosted by C2f3 carbonate rocks.
    由于燕山期(中)酸性岩体岩浆热液替加改造成矿作用,老厂多因复成银铅锌铜多金属矿床最终形成。 第四纪,C_(2+3)-P_1碳酸盐岩矿源层(岩)经红士化作用形成以老厂为代表的红土型银锰矿床。
短句来源
    This deposit isconsidered to be a palaeowethering type stratabound Fe Mn one occurring in a fracture zone and further oxidized and enriched inQuaternary period.
    认为该矿为一个在断裂破碎带中就位的层控古风化型铁锰矿床,并经第四纪进一步氧化富集。
短句来源
    The alumina materials formed by palaeoweathering pre-quaternary were called the palaeoweathering crust alumina materials(palaeolateritic aluminamaterials),after transportation and deposition,the weathering crust bauxite deposits(lateritebauxite deposits)were formed.
    第四纪以前的古风化作用形成的是古风化壳铝土物质(古红土铝土物质),迁移就位以后便形成风化壳铝土矿床(红土铝土矿床)。
短句来源
    3. six time intervals from the Proterozoic to Quarternary for correlation of sedimento-minerogenetic series;
    (3)从元古宙到第四纪沉积成矿系列对比的6大时代段;
短句来源
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  quaternary
The trace representation of the dual of quaternary Goethals code G(m) is given.
      
Synthesis and surface-active property of bis-quaternary ammonium-sodium sulfate Gemini surfactant
      
N,N-dimethyldodecylamine, hydrochloride and epichlorohydrin (molar ration is 2:1:1) were used to synthesize bis-quaternary ammonium Gemini surfactant with a hydroxyl in its spacer group by the one-pot method.
      
This hydroxyl was sulfonated by chlorosulfonic acid and then neutralized to bis-quaternary ammonium-sodium sulfate zwitterionic Gemini surfactant.
      
Synthesis of bis-quaternary ammonium peroxotungstates (peroxomolybdates) and their catalytic activity in oxidation of alcohols b
      
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  quaternary period
The modern shape of the deposit and all industrial ores appeared in the Quaternary period during the formation of the unique extended oxidation zone.
      
Of 366 large and medium-sized oil and gas fields currently found in China, 212 reservoirs were formed in the Neogene-Quaternary period.
      
Occurrences of warm-adapted mammals in north China over the Quaternary Period and their paleo-environmental significance
      
The karst landforms distributed on the Qinghai-Xizang (Tibet) Plateau can be genetically classed with the Tertiary underground karst, which were gradually exhumed to the surface with the uplift of the plateau during Quaternary period.
      
for some profiles of coral reef show that the basic pattern of climatic fluctuation during the Quaternary period can be reflected by coral reef.
      
更多          
  quaternary sequence
The Quaternary sequence is cut through by inherited valleys, where the thickest Holocene sediments are noted.
      
Facies-genetic and stratigraphic subdivision of the Quaternary sequence in the Shapkina River valley has been accomplished.
      
On the basis of seismic stratigraphic and sedimentologic-paleontologic interpretations, four depositional units were distinguished within the Plio-Quaternary sequence of the Gulf of ?zmit.
      
The Apricena Fault, striking WNW-ESE and dipping towards SSW, extends in the subsurface for about 30 kilometres from Serracapriola to Santa Maria di Stignano cutting through the whole Quaternary sequence.
      
A good Quaternary sequence was retrieved in Cores 1 to 7, and Zone N23 is identified from the presence of Globorotalia hirsuta.
      


LUFA consists of the waste liquor of sulfite pulpurea, formaldehyde and ammoniun nitrate, which makes the feature of low viscosity, good grouting, wide adjustable range in gelating time, high strength of gelation and sustained steadiness. In addition, the resource of raw matereals of LUFA are vast and cheap, with no harm. LUFA can be used to block up the water in sand, fine sand and silt strata. It's also able to cement the fault zone and the fissures and block up the water in strata.

木铵化学注浆材料由亚硫酸盐纸浆废液、二羟基物和硝酸铵等成分组成。它具有粘度低,可注性好,胶凝时间可调范围宽,凝胶强度高且耐久稳定等特点。木铵化学注浆材料的原料来源广,成本低,是一种无剧毒性的物质。它适用于第四纪流砂层的固砂堵水和基岩细裂隙、断层破碎带的加固堵水注浆等,具有较广泛的用途。

The mother rock forming rare-earth placer is mixed rock of Bacun Guorp of Cam-brian system or mixed granite of Caledonian period. The sandridge placers are formed by redeposited alluvial sediments. The dominant wind is easterlies in this area,so that the wave and tidal current,the Grains of placer move from east to west. Therefore,in the west part of sandridge,the placer grains are more rich than the east part. The Quater-nary stratigraphy can be divided into five formations, by comparing the 5 formations with...

The mother rock forming rare-earth placer is mixed rock of Bacun Guorp of Cam-brian system or mixed granite of Caledonian period. The sandridge placers are formed by redeposited alluvial sediments. The dominant wind is easterlies in this area,so that the wave and tidal current,the Grains of placer move from east to west. Therefore,in the west part of sandridge,the placer grains are more rich than the east part. The Quater-nary stratigraphy can be divided into five formations, by comparing the 5 formations with the contents of placers are shown, in which the upper Pleistocene (Shawei formation) is the richest with the greatest thickness,the middle Holocene lower(Nan-shahai formation) is the next,followed by the Upper Holocene (Guanghai formation). There are two inclined beds of poor placers with regressive facies between the three rich beds. Becoming richer from up to low is the vertical minerogenic regularity.

论述了粤西滨海第四纪稀土砂矿的成矿母岩、水动力条件、分布富集规律,并划分出晚更新世、中全新世前期和晚全新世三个成矿期.

It is necessary to apply multi-stratigraphy to 1:50000 regional survey in Quaternary area. On the basis of an all-round analysis of the commonly-used methods for Quaternary strata classification (lithology, geomorphy , paleontology , climatology , paleomagnetics ,and chronology) ,the paper proposes a three-phase approach for multi-stratigraphic division :①establishing the relative strata sequence of the studied area with lithostratigraphy and morphostratigraphy:②according to biostratigraphy and climatostratigraphy...

It is necessary to apply multi-stratigraphy to 1:50000 regional survey in Quaternary area. On the basis of an all-round analysis of the commonly-used methods for Quaternary strata classification (lithology, geomorphy , paleontology , climatology , paleomagnetics ,and chronology) ,the paper proposes a three-phase approach for multi-stratigraphic division :①establishing the relative strata sequence of the studied area with lithostratigraphy and morphostratigraphy:②according to biostratigraphy and climatostratigraphy , determining the relative geologic age of the strata. ③determining the age of demarcation lines and geological events according to palaeo-magnetostratigraphy and geochronology. In addition, the basic procedures of the mapping with the multi-stratigraphic method in field are discussed in the paper.

结合河北矾山幅(K-50-135-B)1∶5万区调成果,在全面分析了第四纪地层常用划分方法(岩性法、地貌法、古生物法、气候法、古地磁法、年龄法)的利弊和应用效果的基础上,提出对第四系进行多重地层综合划分应分三步:①根据岩石地层学和地貌地层方法,建立研究区地层相对新老顺序;②根据生物地层学、气候地层学等方法,确定地层的相对地质年代;③根据古地磁和年代学方法,确定重要地质界限和地质事件的年龄;并对多重地层方法野外填图的基本程序进行了讨论。

 
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