古土壤
- Paleosol;ancient soil;paleosoil;fossil soil;buried soil
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这是在自然环境下,黄土高原堆积厚达100m以上完整的黄土&古土壤系列的唯一背景和根源。
This is the sole background and source for the accumulation of loess up to 100 meters and formulating the complete loess plateau & ancient soil under the natural condition .
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乾县变电所古土壤层评价
Evaluation of Ancient Soil in Qianxian Transformer Substation
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黄土-古土壤序列~(14)C年代学研究进展
Advances in radiocarbon dating researches in the loess-paleosol sequences
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黄土剖面古土壤和生物化石~(14)C测年对比
~ ( 14 ) C Dating of Paleosol and Animal Remains in Loess Deposit : A Comparative Study
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陕西黄土高原500KaBP的古土壤与气候带迁移
The Paleosol and the Migration of Climatic Zone about 500 ka BP in Loess Plateau , Shaanxi Province
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Blake极性事件与古土壤层S1的沉积环境
Blake polarity event and depositional environment of paleosoil unit S1
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2.5Ma以来黄土高原灵台剖面黄土-古土壤~(87)Sr/~(86)Sr比值的变化
Variations in ~ ( 87 ) Sr / ~ ( 86 ) Sr Ratios of Loess-Paleosols of Lingtai Section over the Past 2.5 Ma
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通过j从化成壤作用后,古土壤层和黄土层的REE含量发生了微弱的分异。多层平坦化互连技术
After weathering , the REE concentration of paleosol is little larger than the one of loess . The Technology of Multi Layer Flatting Connection
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分析表明,古土壤中有机质δ13C是气候变化的一个良好指标。
The carbon isotope of organic matter in the paleosol is also suggested as an indicator for climate change .
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在UCC标准化图与CL标准化图中,大墩岭黄土与古土壤变化趋势基本一致。
In UCC and CL normalized maps , the variation trend of loess is basically consistent with that of paleosol in Dadunling section .
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理县黄土堆积厚度为7.30m,可分为S0、S1古土壤层和L1黄土层。
The loess accumulation consists of paleosol S0 and S1 and loess L1 in Lixian County , Sichuan Province , whose thickness is 7.30 m.
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对各种古土壤的分类标准进行比较之后,重点介绍了Mack的古土壤分类及其土壤的演变序列。
After comparing all the standards of each classification scheme for paleosols , Mack ′ s classification scheme and its evolvement succession are introduced .
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剖面由第一层古土壤(S1)、马兰黄土(L1)和全新世古土壤(S0)组成。
It consists of the First paleosoil ( S1 ), Malan loess ( L1 ) and Holocene paleosoil ( S0 ) .
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第4、5层古土壤具不连续CaCO3和Fe2O3、Al2O3淀积层,这两层古土壤为酸性森林土壤。
In the illuvial horizons of discontinuous CaCO_3 concretion , Al_2O_3 and Fe_2O_3ocour under the 4th and 5th paleosol layers , and the two paleosols are the acid soils developed under the forests .
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本文对西宁黄土剖面古土壤层S1的721块定向样品进行了详细的岩石磁学和古地磁学研究,获得了Blake亚时转换过程中地球磁场变化特征较精确的记录。
The records of the Blake polarity subchron have been obtained from soil unit S1 in Xining section of the Chinese Loess Plateau . Paleomagnetism and rock magnetism have been studied by measuring 721 oriented specimens .
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洛川黄土剖面末次冰期间冰段弱古土壤(L1SS1)分子化石及其古植被与古环境
Biomarkers in weakly developed paleosol ( l_1ss_ ( 1 )) in the Luochuan Loess Section and reconstructed paleovegetation-environment during the Interstade of the last glaciation
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黄土层显示低磁化率、低红化率、低Rb/Sr比、低CIA、低粘土含量;古土壤层则显示相对较高磁化率、Rb/Sr比、红化率、CIA和粘土含量。
Loess layers show low magnetic susceptibility , low redness rating , low Rb / Sr ratio , low CIA and low clay content ; paleosol layer shows relatively high magnetic susceptibility , Rb / Sr ratio , redness rating , CIA and the clay content .
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土壤剖面磁化率与CaCO3指标反映,由于地带性因素存在,全新世汾河盆地古土壤S0的成壤强度远远低于渭河盆地。
The magnetic susceptibility and the content of CaCO 3 recorded by the soil profiles reveal that the Holocene soil-formation intensity of the paleosol S 0 in the Fenhe Basin was much lower than that in the Weihe Basin due to the existence of the zonal factors .
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黄土高原南部晚更新世黄土地层包括三层黄土(L1~1、L1~2、L1~3)和三层古土壤(S(01)、S(02)、S1),共六个层次。
The Late Pleistocene loess of the southern Loess Plateau of China consists of three layers of loess ( L_1 ~ 1 , L_1 ~ 2 and L_1 ~ 3 ) and three layers of paleosol ( S_ ( 01 ), S_ ( 02 ) and S_1 ) .
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伊犁盆地晚更新世黄土&古土壤磁化率特征
The characteristics of later pleistocene loess-paleosol magnetic susceptibility in Yili Bason
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中国古土壤现分为埋藏土和残余土两大类。
Paleosols of China are divided into buried and relict soils .
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晚第三纪以前形成古土壤的鉴别、分类及其在古环境研究中的应用
Identification , Classification and Application in Paleoenvironment Research of Pre-Neogene Paleosols
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中国黄土-古土壤序列与古全球变化研究
The loess-paleosol sequences in northern China and past global environmental change
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黄土与古土壤中重金属的存在形态及风化成土作用对其影响
Distribution and fractions of heavy metals in Loess and paleosol and the
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黄土和古土壤中磁性矿物的粒度分布
Grain size distribution of magnetic minerals in Loess and paleosol
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长江三角洲地区第一古土壤层及其古气候记录
Paleoclimate recorded in the first layer of Paleosol in Yangtze Delta Area
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长江三角洲晚第四纪埋藏古土壤及成土母质
Late Quaternary Buried Paleosols and Their Parent Materials in the Yangtze Delta
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中国黄土高原古土壤中粘粒移动问题探讨
Clay movement in paleosols of the Loess Plateau in China
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土壤发育指数及其在黄土&古土壤序列中的应用
A soil development index and its application to loess-paleosol sequences
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长江三角洲晚更新世末期古土壤与古环境
Late Late Pleistocene Paleosols and Paleoenvironment in the Yangtze River Delta Area