第四纪
- quaternary;the Quaternary Period;Anthropogene
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[the Quaternary Period] 地质年代,约从250万年前至今
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第四纪钻孔基本属性管理系统的A0实现方法研究
Studies on AO Realization Method for Basic Attributes Management System of Borehole in Quaternary Period
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根据第4至第1含水组(Q1~Q4)地下水δD=-70‰的等值线变化,认为第四纪以来,渤海海岸线逐渐由东向西移动。
The change of δ D value contour of groundwater within the 4th  ̄ 1st aquifer group ( Q 1  ̄ Q 4 ) manifests that the shore line of Bohai moved from east to west gradually in Quaternary Period .
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南海第四纪海水Sr同位素组成演化
Quaternary Sr isotopic records of the seawater in the South China Sea
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南黄海QC2孔第四纪地层划分
Quaternary stratigraphic division of the hole qc_2 in the southern Huanghai Sea
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结果表明:第四纪红土发育的土壤综合污染指数处于警戒线附近,仅Cd出现15%的超标,未受到其他重金属的污染;
The results showed that the soils derived from Quaternary red clay contain warning limit of heavy metals , and only 15 % of the soils are polluted by Cd .
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合肥地区膨胀土形成于第四纪上更新世Q3及其以前,属江淮冲积、洪积成因类型。
The swelling soil in Hefei zone was formed at the Q3 epipleistocene of the 4th subage or before . It belongs to the type of Huaihe alluviation and diluvion .
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3种母质中,第四纪红土母质果园土壤pH值下降达1个单位,花岗岩母质和砂页岩母质果园土壤pH值依次为088和054个单位。
Among three kinds of parent material , the soil pH value of Quaternary red soil dropped one unit , the soil pH value of Granite and Sand shale dropped 0.88 and 0.54 , respectively .
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长春地区分布着第四纪(Q2&Q3)的黄土状土,一般厚10~20m,主要为粉质粘性土。
The Quaternary ( Q_2 Q_3 ) loess-like soil is distributed in the Changchun area and its thickness is up to 10 20m , in which the silty clay is dominant .
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笔者在新疆罗布泊K1孔第四纪沉积物中,首次发现丰富的有孔虫化石(Ammonia)及与其伴生的介形虫和轮藻化石。
Abundant foraminiferal fossils ( Ammonia ) and their associated ostracoda and charophyta fossils were discovered for the first time in Quaternary sediments of hole K1 in Lop Nur , Xinjiang .
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用数值模拟方法研究第四纪古气候&以LLN二维模式为例
Simulating quaternary paleoclimate with the LLN 2 ─ d model
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EIS-GIS联合系统在第四纪研究中的作用及意义
The functions of combined system EIS-GIS and its significance in Quaternary studies
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断块运动受统一应力场支配,早期(渐新世上新世)主压应力方向为NESW,晚期(上新世末第四纪)则转为NWSE。
Fault-block movement is controlled by the unified regional stress field . The principle compression stress direction was NE SW during the early neotectonic stage ( E_3 N_2 ) , while in the late stage ( the end of N_2 Q ) it 's become to NW SE .
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借助于前人根据中国东部区域表土层孢粉数据,运用对应分析方法所建立的孢粉&气候转换函数,对本文MZ钻孔孢粉数据进行转换,重建崇明岛地区第四纪以来年均温度序列。
Transforming sporo-pollen data from MZ borehole as an aid in setting up pollen-climate transfer functions The Quaternary sequence about mean annual temperature is reestablished , by use of the factor analysis based on modern and fossil pollen data .
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本文以东台PY-19孔为例,对江苏沿海第四纪沉积物中的粘土矿物作了分析鉴定和估算,发现所有的样品皆含伊利石,大部分样品含蒙脱石、绿泥石和高岭石。
This paper presents the results of analysis , identification and estimation of the clay minerals in Jiangsu offshore quaternary sediment of using PY-19 core as a representative .
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通过对Sonne号调查船第50航次的地震剖面资料分析,结合一些钻井资料,认为珠江口盆地中部第四纪以来的沉积可分为四套,其中层Ⅰ是浅海相沉积,属全新世;
Based on data of seismic profiles from SO 50 and several wells , the Quarternary sediments of the central part of Pearl River Mouth Basin can be divided into four layers .
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在雷州半岛地区第四纪以来的环境变迁过程中,距今7000~8000a前的全新世中期发生的大海侵,是奠定雷州半岛地貌形态的时期。
In the process of environmental evolution in the middle Holocene , about 7,000-8,000 years BP , a big sea transgression occurred in Leizhou peninsula , which underlay the present morphology .
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青岛市第四纪地层与新构造活动的研究
The Study on the Quaternary Stratum and Neotectonic Movement in QingDao
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土壤发育受第四纪冰川影响明显,成土年龄短;
The glacier influence of Quaternary Period affect soil development obviously ;
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福建第四纪红土上发育土壤的富铝化特征
Allitization Characteristics of Soils Developed From Quarternary Red Clay in Fujian
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灵武断裂晚第四纪古地震及其破裂特征
Late Quaternary PALEOEARTHQUAKES and their rupture features along the Lingwu fault
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黑龙江省第四纪地层测年
Dating of the Quaternary strata of Heilongjiang Province a flowering year
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第四纪多孔凝灰岩的发现及其矿物材料学意义
Discovery of Quaternary porous tuff and its significance in mineral materials
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喀喇昆仑山北坡山地的第四纪构造运动
The Quaternary Tectonic Movement in the Northern Slope of Karakoram Mountain
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中国区域灾害的第四纪环境背景研究
The Background Research on The Quaternary Environment of China 's Disasters
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从哺乳动物群的变化分析蓝田地区第四纪古气候的发展
Change of Quaternary Palaeoclimate in Lantian Area by Analyzing Mammalian Faunas
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洞庭盆地第四纪红土地层及古气候研究
Research on the Quaternary Laterite and Paleoclimate in the Dongting Basin
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四川西昌邛海第四纪盆地成因的探讨
Origin of the Quaternary Qionghai basin , xichang , sichuan Province
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连云港地区第四纪沉积地层特征
The Features of Quaternary Sedimentary Strata in the Region of Lianyungang
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陕西蓝田地区第四纪哺乳动物群的划分
The subdivision of Quaternary mammalian faunas of Lantian district , shaanxi
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焉耆盆地活动断层的晚第四纪右行走滑
Late Quaternary DEXTRAL SHEARING of the active faults in Yanqi Basin