• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >The mineralogical composition of calcium and calcium-magnesium carbonate pedofeatures of calcareous soils in the European prairie ecodivision in Hungary
【2h】

The mineralogical composition of calcium and calcium-magnesium carbonate pedofeatures of calcareous soils in the European prairie ecodivision in Hungary

机译：匈牙利欧洲大草原生态分区的钙质和钙质碳酸钙钙镁盐的矿物特征

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstract udThere is little data on the mineralogy of carbonate pedofeatures in the calcareous soils in Hungary which belong to the European prairie ecodivision. The aim of the present study is to enrich these data.udThe mineralogical composition of the carbonate pedofeatures from characteristic profiles of the calcareous soils in Hungary was studied by X-ray diffractometry, thermal analysis, SEM combined with microanalysis, and stable isotope determination.udRegarding carbonate minerals only aragonite, calcite (+ magnesian calcite) and dolomite (+proto-dolomite) were identified in carbonate grains, skeletons and pedofeatures.udThe values relating, respectively, to stable isotope compositions (C13, O18) of carbonates in chernozems and in salt-affected soils were in the same range as those for recent soils (latter data reported earlier). There were no considerable differences between the values for the carbonate nodules and tubules from the same horizons, nor were there significant variations between the values of the same pedofeatures from different horizons (BC-C) of the same profile. Thus it can be assumed that there were no considerable changes in conditions of formation.udTendencies were recognized in the changes of (i) carbonate mineral associations, (ii) the MgCO3 content of calcites, (iii) the corrected decomposition temperatures, and (iv) the activation energies of carbonate thermal decompositions among the various substance-regimes of soils.udDifferences were found in substance-regimes types of soils rather than in soil types.ud
机译：摘要 ud匈牙利属于欧洲大草原生态分区的钙质土壤中碳酸盐岩特征的矿物学资料很少。本研究的目的是丰富这些数据。 ud通过X射线衍射，热分析，SEM与微量分析和稳定的同位素测定研究了匈牙利钙质土壤特征剖面中碳酸盐岩特征的矿物学组成。 ud关于碳酸盐矿物，仅在碳酸盐颗粒，骨架和过岩中鉴定了文石，方解石（+镁方解石）和白云石（+原始白云石）。 ud这些值分别与碳酸盐岩中碳酸盐的稳定同位素组成（C13，O18）有关黑钙土和受盐影响的土壤与最近的土壤处于同一范围内（较早报道的数据）。来自同一层位的碳酸盐结核和小管的值之间没有显着差异，来自同一轮廓的不同层位（BC-C）的相同脚印的值之间也没有显着差异。因此，可以认为形成条件没有显着变化。 ud趋势在以下方面有所变化：（i）碳酸盐矿物缔合，（ii）方解石的MgCO3含量，（iii）校正的分解温度，和（ iv）在土壤的各种物质体系中碳酸盐热分解的活化能。 ud在土壤的物质体系类型而非土壤类型中发现差异。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号