简介：瓣鳃类壳的稳定的同位素的作文广泛地被用来重建palaeo气候和palaeo环境。瓣鳃类壳的同位素的作文仍然在争论的碳的气候、环境的意义，和新陈代谢的碳的加入能遮住溶解的无机的碳的碳同位素记录。这研究处理淡水瓣鳃类，Corbiculafluminea霰石壳。结果显示与主人水从平衡扔并且显示出ontogenic的瓣鳃类壳的13C价值减少，显示有新陈代谢的效果，更多的新陈代谢的碳被合并到更大的壳。壳的新陈代谢的碳的比例在19.8%和26.8%之间变化。然而，13CS能仍然被用作发生在壳生长期间的13CDIC和环境过程的质的指示物。

简介：Icecoreδ18OrecordefromtheNo.aglacierattheheadoftheUrumqiRiverwereusedocharacterizetherelationshipbetweenδ18Oandcontemporaneoussurfaceairtemperature(Ta)nearbytheDaxigouMeteorologicalStation(3539mabovesealevel,-2kmawayfromtheicecoredrillingsite),Althoughtheicecorerecordsofannuallyaveragedδ18Oarepositivelycorrelatedwithconemporaneoussurfaceairtemperature,especiallysummerairtemperature,thecorrelationislesssignificantthanthatfortheprecipitationsamplesduetodepositionalandpost-depositionalmodificationprocesses,However,theClimatologicalsignificanceoftheicecorδ18Orecordscanbestillpreservedtoacertaindegree,whichmoghtextendtheapplicationofhighaltitudeandsub-tropicalicecoreδ18Orecordstopaleoclimatereconstruction.

简介：

简介：