钠长石化
- 网络Albitization
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在晚成岩期的A、B亚期阶段,方沸石的钠长石化和溶蚀对储层贡献较大。
In the A and B sub-stages of late diagenetic period , the albitization and corrosion of analcime contribute to reservoirs .
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个旧矿区的热液活动及热液蚀变作用很突出,花岗岩中的热液蚀变有:碳酸盐化、绿泥石化、云英岩化、绢云母化、钠长石化。
Hydrothermal alterations in granitic rocks include carbonatization , chloritization , greisenization , sericitization and albitization .
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钠长石化与铁的萃取有关,而碳酸盐化则与铁的沉淀有关。
Albitization is only related to the extraction of iron , whereas carbonatization with the precipitation of the same metal .
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伊利石、绿泥石、钠长石化、孔隙充填方解石和白云石为碱性流体条件下的共生组合。
And the association of illite , chlorite , albitization , pore filling calcite and dolomite is with alkaline pore fluid .
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因此,斜长石的钠长石化可见于成岩早期,而钾长石的钠长石化只发生于成岩晚期。
Therefore , the albitization of plagioclase is shown in the early stage of diagenesis and albitization of potash feldspar appears only in the late stage of diagenesis .
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其次,进入中成岩期,物源来自盆地东北部的储层砂岩中大量的斜长石,通过斜长石钠长石化形成浊沸石。
Second , enter the period of diagenesis , source come from the north-eastern basin of the reservoir sandstone in a large number of plagioclase by albite plagioclase petrochemical form laumontite .
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结合热动力学平衡原理分析,斜长石的钠长石化基本不受成岩温度和压力的制约,而钾长石的钠长石化需要较高的成岩温度和压力作用才能进行。
Analysis based on the equilibrium activity of thermodynamic principle shows that albitization of plagioclase is not controlled by temperature and pressure in diagenesis , and that albitization of potash feldspar depends on the increase of temperature and pressure during a diagenetic process .
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亮晶方解石一般呈连晶胶结物分布,钠长石分斜长石钠长石化和自生钠长石两种产状,其中均见有丰富的油气包裹体。
Crystal Calcites are generally distributed in double Double-crystal shape . Albites have two kinds , albite from plagioclases and self-albites , where large numbers of oil and gas inclusions are seen .