古温度
- paleotemperature
-
河北省沉积岩磁化率特征及古温度意义的初探
A preliminary study on features and paleotemperature implications of sedimentary magnetic susceptibility in Hebei Province
-
福建宁化天鹅洞石笋年代和古温度
Study on the Stalagmite Age and the Paleotemperature of the Tian E Cave in Ninghua , Fujian , China
-
在相对稳定的气候阶段,土壤中的CO2与其中的碳酸盐之间处于同位素平衡状态,这意味着二者的碳同位素分馏值可作为地质温度计估算古温度。
During relative stable climate , soil CO_ ( 2 ) is isotopically equilibrated with soil carbonate . This means that carbon isotopic fractionation between them can be used as a geothermometer to estimate palaeotemperature .
-
石笋的w(Mg)/w(Sr)值与Mg的固液分配系数DMg/Ca直接相关,可作为估算古温度变化的地球化学温度计。
The w ( Mg ) / w ( Sr ) ratio in a stalagmite , which is directly proportional to D_ Mg / Ca , the solid-liquid distribution coefficient of Mg , is proposed as a geochemical thermometer to estimate paleoclimatic changes .
-
湖泊碳酸盐氧同位素记录的古温度定量研究
Quantificational Research of Paleotemperature from Oxygen Isotope Records for Lacustrine Carbonates
-
吉林双辽地区风沙堆积古温度研究
Study on Paleotemperature of Aeolian Sediments in Shuangliao Area of Jilin
-
氧同位素测量古温度方法;
The oxygen isotope survey method of the ancient temperature ;
-
周口店洞穴石笋的同位素古温度探索
A study on paleotemperature of stalagmite from Choukoutien Cave by isotope determination
-
浅谈浮游有孔虫群落海水古温度估算
Review of planktonic foraminiferal assemblages for sea surface temperature estimate
-
洞穴石笋古温度研究的同位素地球化学方法
Isotopic geochemistry methods for paleotemperature studies of cave speleothems
-
用全铁含量作为黄土替代性气候指标推算古温度
Estimation of Paleo-temperature with Total Iron Content in Loess
-
高放废物深地质处置库预选场址的古温度环境
Paleotemperature Conditions of the Pre-selected Site for Deep Geological Disposal of High-level Radioactive Waste
-
印度洋海底钻孔样品中天然放射性元素的活化测定及其提供的古温度信息
Activation determination of natural radioactive elements in drill bore sediments of the Indian Ocean
-
南海南部表层海水古温度估算与次表层海水特征变化
Sea surface temperature estimate and subsurface water evolution in the southern South China Sea
-
西太平洋翁通&爪哇海台晚第四纪浮游有孔虫群与古温度变化
Late Quaternary variations of planktonic foraminiferal assemblage and paleo-temperature of ONTONG-JAVA plateau , west Pacific
-
福建宁化天鹅洞石笋晚第四纪同位素古温度研究
A study on Late Quaternary isotopic paleotemperature of stalagmite from Tian'e cave at Ninghua county , fujian
-
海生双壳类的古温度标志特征
Palaeotemperature characteristics of marine bivalve
-
尝试了用表土地球化学转换函数恢复渭南剖面最近13万a来的古温度、古降水。
A 130 000 year quantitative palaeoclimate reconstruction at Weinan profile was conducted by using geochemical transfer function .
-
多年冻土温度场在气候变化研究中具有重要意义,因为多年冻土具有记忆古温度场的能力。钻探过程对冻土原状温度具有深刻影响,深钻孔在几年内难以恢复到天然状态。
Deep permafrost thermal regime has significant implications in climatic change studies because it preserves information on the history of near-surface temperatures .
-
古温度的定量估算已成为理解地球气候系统演化的关键性环节,是古环境研究中的前沿问题,海水古温度再造方法备受关注。
The methods for reconstructing the sea surface paleotemperature have attracted many scientists attention particularly in recent years and become more and more perfect .
-
氧同位素估算的热水古温度为49~249℃(高温部分有后期岩浆的叠加扰动)。
Estimation of paleotemperature by oxygen isotope is 49-249 ℃ ( the part with higher temperature may be disturbed by later magmatic activities ) .
-
贵州桐梓某第四纪洞穴钟乳石的氧、碳稳定同位素比值及其古温度的初步测定
A preliminary measurements on oxygen and carbon-sta - ble isotopic ratio and paleotemperature of stalactite of a quaternary cave from tongzi , Guizhou Province
-
盆地模拟的数学模型是一组关于地层超压和古温度的非线性偏微分方程初边值问题。
The models are characterised by an initial-boundary value problems of a system of nonlinear partial differential equations on the abnormal pressure and the paleo-temperature of the formation .
-
石英胶结物的研究对古温度的定时、了解储层非均质性的成因及储层物性有着重要的意义。
The research of quartz cement is significant for the timing of paleotemperature , heterogeneity of reservoir , physical property of reservoir and the timing of oil immersion , and so on .
-
有孔虫壳体的Mg/Ca比值测定是目前估算海水古温度最受重视的方法,适用于低纬和高纬、表层和深层海水古温度的测定。
Measurement of Mg / Ca ratio of foraminifera shell is the most popular means in calculating seawater paleotemperature now . It is applicable in low and high latitude areas , to determine surface and deep seawater temperatures .
-
本文给出了三维问题的数值解法,模型问题的稳定性分析以及计算实例的数值结果,计算得到的超压和古温度合理,有很强的物理特性。
In the present paper , a numerical method for three-dimensional problem and the analysis of its stability are estab-lished and a numerical result for a practical model is given , which shows that the abnormal pressure and paleo-temperature computed are reasonable and display physical characteristics clearly as well .
-
高分辨率古海水温度记录&珊瑚Sr/Ca比值
High-resolution Sea Surface Temperature Records from Coralline Strontium / Calcium Ratios
-
古地温度场系统的参数识别及最优控制问题
The Identification of Parameters and Optimal Control for Paleo-geotemperature Field System
-
浮游有孔虫、钙质超微化石组成和数量的改变也为古海洋温度升、降提供了直接的证据。
The direct evidence of temperature alternation is provided by the assemblages and density variation of planktonic foraminifer , calcium micro-fossil in the palaeo-ocean .
-
古陶烧制温度的穆斯堡尔谱研究
Mossbauer study on firing temperature of ancient pottery