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首页> 外文期刊>American Mineralogist >A cold-sealing capsule design for synthesis of fluid inclusions and other hydrothermal experiments in a piston-cylinder apparatus
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A cold-sealing capsule design for synthesis of fluid inclusions and other hydrothermal experiments in a piston-cylinder apparatus

机译:一种用于活塞-活塞装置中的流体包裹体合成和其他水热实验的冷封胶囊设计

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摘要

Here we report on a newly developed, large-volume, cold-sealed capsule design for hydrothermal synthesis experiments in a piston-cylinder apparatus that should be useful for the production of synthetic fluid inclusions at pressures and temperatures not previously attained in gas- or fluid-pressurized reaction vessels. The design is adapted for large-volume experiments using a 30 mm internal-diameter pressure vessel, but can be scaled down to suit smaller pressure vessels, e.g., 15.9 mm (5/8'') internal diameter, if required. Calibration experiments show that temperature varies ±5 °C over the length of a 30 mm (length) x 15 mm (diameter) Cu capsule. The design incorporates the thermocouple within the capsule mass to optimize temperature control. Quartz-hosted H2O inclusions were synthesized over a range of conditions. Fluid-inclusion densities are consistent with the nominal experimental conditions, suggesting a friction correction is not required. This approach has several advantages over conventional hydrothermal experimental methods: (1) substantially higher pressures are attainable in piston-cylinder than hydrothermal and gas-media apparatus; (2) cold-sealing capsules avoid potential problems associated with welded capsules, such as solution modification; (3) capsule fluids are readily sampled ex situ; (4) the use of relatively thick-walled capsules minimizes H2-losses during experiments; (5) synthetic fluid inclusions can be used to derive fluid PVTX properties by combining conventional thermometry with analyses of individual fluid inclusions or independent mineral solubility data.
机译:在这里,我们报告了一种新开发的,大容量,冷密封的 胶囊设计,该设计用于在活塞缸 装置中进行水热合成实验在气体或流体加压反应容器中未达到 的压力和温度下的 流体夹杂物。 设计适用于使用30 mm 内径压力容器的大容量实验,但可以缩小到 以适应较小的压力容器,例如,如果需要,内部 直径为15.9毫米(5/8英寸)。校准实验表明,温度 在30毫米(长度) x 15毫米(直径)Cu胶囊的长度上变化±5°C。该设计在胶囊质量内结合了热电偶 以优化温度控制。在一定条件下合成了以石英为基质的 H 2 O夹杂物。 流体夹杂物的密度与标称实验 < / sup>条件,表明不需要进行摩擦校正。 与传统的水热实验方法相比,该方法具有以下优点:(1)明显更高的压力 在活塞缸中可比水热和气体介质 设备获得的sup; (2)冷封胶囊避免了与焊接胶囊相关的潜在问题,例如溶液改性; (3)胶囊液体易于异地采样; (4)使用 相对厚壁的胶囊可使 实验期间的H 2 损失最小化; (5)通过将常规测温法 与单个流体包裹体的分析或独立的 矿物溶解度数据相结合,可以使用合成流体包裹体得出 流体PVTX特性。 。

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  • 来源
    《American Mineralogist》 |2006年第1期|203-210|共8页
  • 作者单位

    Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia;

    Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia|Department of Earth and Marine Sciences, The Australian National University, Canberra, ACT 0200, Australia;

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