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草酸盐矿物的形成可以用来证明苔藓、真菌等低级生物的存在。系统研究了一水草酸钙石、二水草酸钙石、草酸铜石、草酸铁石、草酸镁石、草酸钠石和草酸胺石等7种草酸盐矿物的Raman和红外光谱特征。研究表明,草酸盐矿物的CO Raman伸缩振动峰与阳离子种类有关,二水草酸钙石、草酸铜石、草酸镁石、草酸钠石的CO Raman伸缩振动峰依次是1468,1489,1471,1456cm~(-1)。除草酸胺石外,只有Raman和红外光谱特征能够证明这些草酸盐矿物的络合特性。还对水的OH伸缩振动的光谱学特征进行了测定和分析,用来区分草酸钙石中是否含有结晶水及结晶水的含量。结果的重要性在于可以用振动光谱技术来鉴定赋存在岩石表层的草酸盐矿物,从而用于证明其他行星(如火星)上是否有生命或曾经有生命存在。
The formation of oxalate minerals can be used to prove the existence of low-level organisms such as mosses and fungi. The Raman and FTIR spectra of seven oxalate minerals such as oxalicite monohydrate, oxalic acid dihydrate, copper oxalate, oxalic acid, magnesium oxalate, sodium oxalate and ammonium oxalate were systematically studied. The results show that the CO Raman stretching vibration peaks of oxalate minerals are related to the cation species. The CO Raman stretching vibration peaks of oxalicite, oxalicite, oxalate and sodium oxalate are 1468, 1489, 1471 and 1456 cm ~ (-1). Apart from oxalic acid amides, only the Raman and infrared spectral characteristics can demonstrate the complexation properties of these oxalate minerals. The spectral characteristics of OH stretching vibration of water were also measured and analyzed to distinguish whether or not the calcium oxalate stone contained the content of crystal water and crystal water. The result is important in that vibrational spectroscopy can be used to identify oxalate minerals present on the surface of the rock and thus to prove whether or not other planets (such as Mars) exist or have lived.