Shen Mengmeng, Huang Mulin, Lu Zhiyun, He Xuemei
School of Gemmology, China University of Geosciences Beijing 100083 China
National Gems and Jewelry Technology Administrative Center Beijing 100013 China.
RSC Adv. 2023 Aug 25;13(36):25571-25577. doi: 10.1039/d3ra03701k. eCollection 2023 Aug 21.
A proposed quartz thermometer is based on the concentration of [AlO] tetrahedra determined by combining inductively coupled plasma optical emission spectrometry (ICP-OES) with X-ray photoelectron spectroscopy (XPS) data. The concentration of [AlO] tetrahedra in the quartz lattice (/ppm) and the formation temperatures of quartz (/°C) from agate, gold deposits, and granodiorite are calculated by = (ppm) × and (°C) = 3.6 × (ppm) × + 33.0, respectively. Where is the total Al concentration of quartz measured by ICP-OES and is the relative percentage of [AlO] tetrahedra in the quartz lattice and can be obtained by fitting the Al(2p) XPS spectrum. The obtained formation temperatures of quartz () agree well with the equilibrium formation temperature () calculated by oxygen isotope data. By comparing the relative positions of the two temperature curves of quartz ( and ), the composition of the mineral-forming fluid can be inferred. The proposed quartz thermometer can be applied to quartz formed under equilibrium conditions and in Al-saturated environments over a wide temperature range (152-566 °C). The use of the quartz thermometer effectively eliminates interference from different fluid compositions and satisfies the requirements of convenience and economy.
一种 proposed 石英温度计基于通过将电感耦合等离子体发射光谱法（ICP - OES）与X射线光电子能谱法（XPS）数据相结合来确定的[AlO]四面体的浓度。石英晶格中[AlO]四面体的浓度（/ppm）以及来自玛瑙、金矿床和花岗闪长岩的石英的形成温度（/°C）分别通过 = （ppm）× 和 （°C） = 3.6 × （ppm）× + 33.0来计算。其中 是通过ICP - OES测量的石英的总Al浓度， 是石英晶格中[AlO]四面体的相对百分比，可通过拟合Al(2p) XPS光谱获得。所获得的石英形成温度（）与通过氧同位素数据计算的平衡形成温度（）吻合良好。通过比较石英的两条温度曲线（和）的相对位置，可以推断成矿流体的成分。所提出的石英温度计可应用于在平衡条件下以及在较宽温度范围（152 - 566°C）内的Al饱和环境中形成的石英。石英温度计的使用有效地消除了不同流体成分的干扰，并满足了便利性和经济性的要求。
原文中“proposed”直译为“提议的”，在中文语境中稍显不通顺，可根据上下文灵活调整表述，这里暂保留原文形式。
