Global Cycle of Boron Isotopes in Modern and Fossil Marine Carbonates and Carbon Minerals

Boron Isopic Composition对珊瑚礁的28个样本进行了测量，收集了冲绳群岛、Tonaki岛和冲绳西南岛的Miyako岛。公司使用的两种螺旋桨物种， 20种螺旋桨物种，2种单螺旋桨物种，以及四种螺旋桨物种，对之表示赞赏。波隆是从甲基硼蒸馏法的约6克样本中分离出来的，波隆同位素比率是衡量标准的。Moreover，对存在于一个样本中的元素的决定是由发射光谱学分析携带出来的。顺便说一下， Na、K、Li、Mg、Sr、Ba和B作为主要的共存元素。许多Sr、Ns和Mg都包含在它中，因为一些珊瑚，晶体形式被从阿拉贡石到钙石的共存所改变。这是从镁浓度和C / A比率之间的积极相关性中得出的。在Boron浓度或同位素比率或其他化学成分之间没有任何关系。波隆浓度为20-50 ppm，平均浓度为40.95 ppm，标准偏差为±7.23 ppm。Boron isotopic ratios are 4.107-4.158 （15.8- 28.3% as delta D11B）， the boron isotopic ratios in 26 samples of the others except heliopora are 4.133-4.158， and the average was set to 4.141。这次的标准偏差是±0.008，而且是一个非常狭窄的球体的变化。这一价值显示了理论计算和非常好的一致性。However，一种差异可以在一个共存元素、同位素比率等之间看到，以及在Heliopora和其他的珊瑚中，以及在Heliopora的珊瑚中显示，添加到这个更低的硼同位素比率。我认为这可能是一个特定的生物学上不同的同位素效应。

The boron isotopic composition were measured about coral 28 samples collected on offing the Okinoerabu iland, the Tonaki island, and the Miyako island of the Okinawa southwest islands. The kind of coral used two species of helioporas, 20 species of acroporas, two species of montiporas, and four species of poriteses, respectively. Boron was separated from the about 6g sample by the methyl borate distillation, and the boron isotopic ratios were measure. Moreover, the determination of the element which exists in a sample was carried out by emission spectrochemical analysis. Consequently, Na, K, Li, Mg, Sr, Ba, and B were contained as main coexistence elements. Many Sr, Ns, and Mg were contained in it. As for some coral, the crystal form changed with coexistence of magnesium from the aragonite to the calcite in part. This is guessed from positive correlation being between magnesium concentration, and C / A ratio. There was no correlation between boron concentration or an isotopic ratio, and other chemistry components. Boron concentration was 20-50 ppm, the average was 40.95 ppm, and the standard deviation was ±7.23 ppm. Boron isotopic ratios are 4.107-4.158 (15.8-28.3% as deltaィイD111ィエD1B), the boron isotopic ratios in 26 samples of the others except heliopora are 4.133-4.158, and the average was set to 4.141. The standard deviation at this time was ±0.008, and was the variation in a very narrow sphere. This value showed theoretical calculation and very good coincidence. However, a difference is looked at by a coexistence element, the isotopic ratio, etc. between the coral of heliopora and others, and the boron isotopic ratio in the coral of heliopora showed the in addition to this more low boron isotopic ratio. This is considered to suggest that it may be a certain biologically different isotope effect.