沉积盆地成岩环境下流体包裹体再平衡机制及其判别方法

发布时间：2018-05-29 08:08

本文选题：流体包裹体 + 再平衡机制　；参考：《地质论评》2017年01期

【摘要】：流体包裹体再平衡是流体包裹体研究中常遇到的现象,如何识别流体包裹体再平衡,以及解释造成再平衡的地质因素是研究者们需要面对的问题。本文总结了流体包裹体再平衡机制,并简要分析了流体包裹体再平衡的影响因素,就流体包裹体岩相学和均一温度特征详细介绍了再平衡流体包裹体识别方法。地壳中不同的P一T演化史会影响流体包裹体的再平衡过程,变形程度较低时,流体包裹体可能是以塑性拉伸变形为主;变形程度较高时,可能发生泄露、爆裂等,造成流体包裹体不可逆变形。地质作用强烈、变化速度较快的地质背景下,主矿物脆性强、解理发育,个体较大、形状不规则、拉长型的流体包裹体容易受改造。再平衡流体包裹体一般存在针形拉伸变化或爆裂现象(如爆裂晕),且同一FIA流体包裹体气液比、相态等变化较为明显,具较高或较低异常均一温度,均一温度变化较大。流体包裹体再平衡的量化模拟和参考标准有待确立,是未来流体包裹体再平衡问题深化研究的重要方向。
[Abstract]:The rebalance of fluid inclusions is a common phenomenon in the study of fluid inclusions. How to identify the rebalance of fluid inclusions and explain the geological factors that cause rebalance is a problem that the researchers need to face. This paper summarizes the mechanism of rebalance of fluid inclusions, and briefly analyzes the factors affecting the rebalance of fluid inclusions and the fluid. The petrographic and homogeneous temperature characteristics of the inclusions introduce the identification of rebalanced fluid inclusions in detail. The different P T evolution history in the earth's crust will affect the rebalance process of fluid inclusions. When the degree of deformation is low, the fluid inclusions may be dominated by plastic tensile deformation; when the deformation range is high, the leakage and bursting may occur. The fluid inclusion is irreversible. Under the geological background of strong geological action and fast changing speed, the main mineral is brittle, cleavage, large individual, irregular shape, elongated fluid inclusions easy to be reformed. Rebalanced fluid inclusions usually have needle type stretching or bursting phenomena (such as burst halo), and the same FIA fluid package The change of body gas liquid ratio and phase state is more obvious, with high or lower anomalous uniform temperature, and the uniform temperature varies greatly. The quantitative simulation and reference standard of fluid inclusion rebalance need to be established. It is an important direction for further research of the rebalance of fluid inclusions in the future.
【作者单位】：中国石油大学(华东)地球科学与技术学院;国土资源部金矿成矿过程与资源利用重点实验室;山东科技大学地球科学与工程学院;中国石油勘探开发研究院;香港大学地球科学系;
【基金】：国家自然科学基金资助项目(编号:41172111) 中央高校基本科研业务费专项资金资助项目(编号:SD2013211151) 国土资源部金矿成矿过程与资源利用重点实验室资助(编号:2013004) 山东省高等学校科技计划项目(编号:J15LH05)的成果~~
【分类号】：P61

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