Analytical results from lightning discharge experiments focusing on interactions between nitrogen oxides and pyrite

The dataset includes measurements of dissolved and gaseous nitrogen oxides (nitrite, nitrate, NO(g)) generated by lightning discharge in a glass container partially filled with water, as well as measurements of dissolves sulfate and iron liberated from pyrite that has interacted with the nitrogen oxides. The lightning discharge experiments were carried out with either anoxic gas mixture (5% or 20% CO2 and the rest N2) or modern air. Lightning has long been identified as a source of reactive nitrogen species to Earth's early biosphere. These experiments were therefore conducted in order to test how this reactive nitrogen would interact with minerals at the Earth's surface. The results reveal that lightning-generated nitrogen oxides could have contributed to a small degree to oxidative weathering.

本数据集涵盖两类测量数据：其一为在部分充水玻璃容器中由闪电放电产生的溶解态与气态氮氧化物(nitrogen oxides)（亚硝酸根、硝酸根、气态一氧化氮）的含量数据；其二为与上述氮氧化物发生反应的黄铁矿(pyrite)所释放的溶解态硫酸盐与铁的含量数据。本次闪电放电实验分别采用缺氧混合气体（5%或20%二氧化碳，其余为氮气）与现代空气作为实验氛围。长期以来，学界已证实闪电是地球早期生物圈活性氮物种(reactive nitrogen species)的重要来源之一，因此本实验旨在探究这类活性氮与地球表面矿物的相互作用机制。研究结果显示，闪电产生的氮氧化物可能在一定程度上参与了氧化风化过程。