Abstract The stability of pyrrhotite (Fe1-xS; Fe7S8) was tested under simulated Venus conditions in two different temperature/pressure regimes and three different gas mixtures. The two regimes correlate to the average conditions in the lowlands (460 °C/92 bar) and the conditions found at the top of Maxwell Montes, 11 km above the planetary radius (380 °C/42 bar). The three gas mixtures consisted of 99.999% CO2, 100 ppm SO2 in CO2, and 100 ppm of COS in CO2. All experiments lasted between 24 and 96 h. Analysis using X-ray Diffraction (XRD) and Laser Induced Breakdown Spectroscopy (LIBS) revealed that pyrrhotite was stable at all tested temperature/pressures and gases. Our results further expand on our knowledge of the chemical reactions that may take place on Venus and highlights the need for in situ measurements of the near surface geology and atmosphere.

中文翻译：

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磁黄铁矿在实验模拟金星条件下的稳定性

摘要 磁黄铁矿（Fe1-xS；Fe7S8）的稳定性在模拟金星条件下在两种不同的温度/压力状态和三种不同的气体混合物中进行了测试。这两种状态与低地的平均条件 (460 °C/92 bar) 和在 Maxwell Montes 顶部发现的条件相关，距行星半径 11 公里 (380 °C/42 bar)。三种气体混合物由 99.999% 的 CO2、100 ppm SO2 的 CO2 和 100 ppm 的 COS 的 CO2 组成。所有实验持续 24 至 96 小时。使用 X 射线衍射 (XRD) 和激光诱导击穿光谱 (LIBS) 进行的分析表明，磁黄铁矿在所有测试的温度/压力和气体下都是稳定的。