茜素红染色技术应用于川西北中二叠统栖霞组豹斑灰岩流体包裹体测温研究

兰叶芳; 黄思静; 袁桃; 胡博; 黄树光

doi:10.15898/j.cnki.11-2131/td.2015.01.009

茜素红染色技术应用于川西北中二叠统栖霞组豹斑灰岩流体包裹体测温研究

1.
贵州工程应用技术学院矿业工程学院, 贵州毕节 551700

2.
油气藏地质及开发工程国家重点实验室, 成都理工大学, 四川成都 610059

3.
成都理工大学沉积地质研究院, 四川成都 610059

基金项目: 国家自然科学基金资助项目(41172099, 41272130)

详细信息

作者简介: 兰叶芳, 博士, 主要从事沉积地质学研究.E-mail: wssbdnn@163.com

中图分类号: P571

收稿日期: 2013-11-08

修回日期: 2014-03-30

录用日期: 2014-12-17

刊出日期: 2015-01-25

The Application of Alizarin Red S in the Fluid-inclusion Homogenization Temperature Measurement of Carbonate Rocks from the Middle Permian Qixia Formation, Western Sichuan Basin

1.
Institute of Mining Engineering, Guizhou University of Engineering Science, Bijie 551700, China

2.
State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China

3.
Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China

Received Date: 08 November 2013

Revised Date: 30 March 2014

Accepted Date: 17 December 2014

Publish Date: 25 January 2015

摘要

摘要:
碳酸盐岩流体包裹体测温过程中宿主矿物的准确鉴别和包裹体形成期次的确定尤为关键, 将包裹体测温与其他技术结合才能更好地解决包裹体的生源和属性.本文以川西北中二叠统栖霞组豹斑灰岩晶洞充填物中鞍形白云石和方解石为研究对象, 在岩石学特征研究确定二者形成顺序基础上, 借助茜素红染色正确区分流体包裹体的宿主矿物.研究结果表明, 染色剂的使用对流体包裹体测温结果无影响, 染色前后包裹体的均一化温度测量差值在1℃以内, 而染色剂配制比例(尤其是盐酸浓度)、染色时间和染色液清除方式是茜素红染色技术能否成功应用于碳酸盐岩流体包裹体测温的关键.本研究准确获得了鞍形白云石和分布于鞍形白云石晶间和晶内的方解石的包裹体均一化温度, 分别集中在110~190℃和70~130℃区间, 二者具有40~60℃的温度差.研究认为, 方解石的沉淀时间晚于鞍形白云石, 鞍形白云石的沉淀可能与峨眉山玄武岩喷发热事件有关, 热事件后的温度降低导致鞍形白云石的溶解并伴随方解石的沉淀.
- 茜素红染色 /
- 豹斑灰岩 /
- 流体包裹体测温 /
- 热流体
Abstract:
The accurate identification of host mineral and the formation stage of fluid inclusions are critical to temperature measurement, and the combination of inclusion technology and other technologies could be better to figure out the source and properties. Vug fillings in Middle Permian Qixia Formation of western Sichuan Basin are characterized by the intimate intergrowth of saddle dolomite and calcite. In this paper, Alizarin Red S is successfully used to distinguish the host minerals of fluid inclusions on the basis of the recognition of the sequence of diagenetic authigenic minerals. The results show that the Alizarin red staining techniques used in measuring fluid inclusion temperature of carbonates is feasible due to the difference of homogenization temperature of fluid inclusions before and after Alizarin Red staining is within 1℃. Solution proportion (especially the concentration of hydrochloric acid), dyeing time and the clearing way of staining solution are key parameters to the application of Alizarin red staining technique on the temperature measurement of fluid inclusion. Fluid-inclusion homogenization temperature of saddle dolomite mainly range from 110℃ to 190℃, up close to 270℃, and that of calcite is mainly between 70℃ and 130℃. Formation temperature difference of about 40-60℃ between saddle dolomite and calcite may be related to the Emeishan basalt eruptions in the late Permian. Fluids with high temperature related to the Emeishan basalt eruptions overcome the dolomite precipitation kinetics barrier and cause saddle dolomite precipitated. Saddle dolomite was dissolved and calcite precipitated in the dissolution space of dolomite and inter-granular pores due to the decrease of paleo-temperature after the thermal event.
- Alizarin red staining /
- leopard limestone /
- fluid-inclusion homogenization temperature measurement /
- hydrothermal fluid

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图 1 长江沟剖面地理位置图^[11]

Figure 1.

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图 2 晶洞充填物中鞍形白云石和方解石的赋存状态

Figure 2.

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图 3 染色前后包裹体特征及其均一化温度测量结果的对比

Figure 3.

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图 4 长江沟剖面栖霞组晶洞充填物中鞍形白云石和方解石包裹体均一化温度分布直方图

Figure 4.

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表 1 鞍形白云石和方解石染色前后流体包裹体均一化温度对比

Table 1. Comparison of homogenization temperature of fluid-inclusion of vug fillings before and after being stained with Alizarin Red S

参数	鞍形白云石					方解石
参数	1	2	3	4	5	6	7	8	9	10
大小(μm)	13	6	9	13	10	8	10	4	8	9
染色前的均一化温度 (℃)	212.6	205.1	181.6	143.5	112.4	67.0	78.9	115.6	93.3	86.3
染色后的均一化温度(℃)	212.7	205.9	181.8	143.3	112.9	67.2	78.3	115.1	93.8	86.9
染色前后的温度差(℃)	0.1	0.8	0.2	0.2	0.5	0.2	0.6	0.5	0.5	0.6

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茜素红染色技术应用于川西北中二叠统栖霞组豹斑灰岩流体包裹体测温研究

1. 贵州工程应用技术学院矿业工程学院, 贵州 毕节 551700 2. 油气藏地质及开发工程国家重点实验室, 成都理工大学, 四川 成都 610059 3. 成都理工大学沉积地质研究院, 四川 成都 610059

作者简介: 兰叶芳, 博士, 主要从事沉积地质学研究.E-mail: wssbdnn@163.com

The Application of Alizarin Red S in the Fluid-inclusion Homogenization Temperature Measurement of Carbonate Rocks from the Middle Permian Qixia Formation, Western Sichuan Basin

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目录

1.
贵州工程应用技术学院矿业工程学院, 贵州毕节 551700

2.
油气藏地质及开发工程国家重点实验室, 成都理工大学, 四川成都 610059

3.
成都理工大学沉积地质研究院, 四川成都 610059