均匀流体和不均匀流体的形成机制: 来自合成流体包裹体的证据

张振亮; 吕新彪; 饶冰

均匀流体和不均匀流体的形成机制: 来自合成流体包裹体的证据

基金项目:

国家自然科学基金项目 No40072031

详细信息

作者简介:
张振亮(1974-), 男, 在读博士后, 石油地球化学方向.E-mail: liangzhen74@163.com

中图分类号: P611.5
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- 被引次数: 0
出版历程
- 收稿日期: 2007-05-12
- 刊出日期: 2008-03-25

Formational Mechanisms of Homogeneous Fluid and Boiling Fluid: Evidences from Synthetic Fluid Inclusions

摘要

摘要: 为详细了解流体的形成机制, 对系统的流体包裹体合成实验进行研究.研究表明, 在合成流体包裹体实验中, 广泛存在流体的均一化和沸腾作用; 流体的均匀与否, 与流体p-t轨迹在TP (H₂O)-CP(H₂O)-CP(NaCl-H₂O) 曲线的部位有密切的关系.p-t轨迹在曲线上部的流体为均匀流体, 反之则为沸腾流体.但也有例外, 如在溶解曲线上被主矿物捕获的流体.这为本次研究一定条件下流体的形成机制、探讨成矿作用提供了理论依据.
- 合成流体包裹体 /
- 均匀流体 /
- 不均匀流体 /
- 形成机制
Abstract: Synthetic fluid inclusions were studied in order to discuss formational mechanisms of homogeneous fluid and boiling fluid in detail.The results of experiments of fluid inclusion synthesizing show frequent occurrences of homogeneous fluid and boiling fluid, was closely in relation to the position of its p-t locus in TP (H₂O)-CP(H₂O)-CP(NaCl-H₂O) curve of p-t phase diagram of NaCl-H₂O system determined whether the fluid was homogeneous.If it was at the upper zone of TP (H₂O)-CP(H₂O)-CP(NaCl-H₂O) curve, then the fluid was homogeneous, otherwise, the fluid was boiling.But the fluid trapped on the solution curve of NaCl in water was an exception, for example No.10 experiment.This was very beneficial for us to study on the formation mechanism of fluid and mineralization in the ore deposit.
- synthetic fluid inclusion /
- homogeneous fluid /
- boiling fluid /
- formational mechanism

HTML全文

图 1 流体沸腾作用示意图

CP (50) 代表50%NaCl水溶液的等组成线与临界曲线相切的点; ①-⑥为实验1-实验6的沸腾作用变化趋势; ⑦为实验1的虚拟变化趋势; ■为各样品的实验稳定条件(温度与压力); △为包裹体的形成条件(温度与压力)

Fig. 1. Boiling of fluid at the condition of different p-t

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图 2 均匀流体形成示意图

CP (50) 代表50%NaCl水溶液的等组成线与临界曲线相切的点; ①-②、⑦-⑩为实验1、2和实验7-10的均匀流体变化趋势; ■为各样品的实验稳定条件(温度与压力); △为包裹体的形成条件(温度与压力)

Fig. 2. Homogeneous fluids at the condition of different p-t

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表 1 合成流体包裹体实验条件

Table 1. The experimental conditions of synthetic fluid inclusions

表 2 合成流体包裹体的测试结果

Table 2. The measurements of synthetic fluid inclusions

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