Simulating speleothem growth in the laboratory: Determination of stable isotope fractionation factors during precipitation of speleothem calcite
Simulating speleothem growth in the laboratory: Determination of stable isotope fractionation factors during precipitation of speleothem calcite
复制标题
模拟实验室中的洞穴生长：确定洞穴方解石沉淀过程中的稳定同位素分馏因子
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
D. Scholz
中科院分区：
文献类型：
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作者：
M. Hansen;B. Schöne;C. Spötl;D. Scholz
我们进行了实验室实验，旨在了解方解石从一薄层溶液中析出过程中影响溶洞主题δC和δO值的过程。特别是，我们确定了降水速率和同位素分馏因子依赖于几个参数，如温度、洞穴二氧化碳分压和方解石的过饱和。实验在气候箱中进行，以模拟洞穴条件，并在实验过程中对其进行控制。
We present laboratory experiments aiming to understand the processes affecting the δC and δO values of speleothems during precipitation of calcite from a thin layer of solution. In particular, we determined the precipitation rates and the isotope fractionation factors in dependence of several parameters, such as temperature, cave pCO2 and supersaturation with respect to calcite. The experiments were performed in a climate box in order to simulate cave conditions and to control them during the experiments.