;The ore-hunting indicator is of calcite-potassium feldspar veins containing pyritohedron pyrite.
直接找矿标志为含五角十二面体黄铁矿铁方解
钾长脉。
；正长The ore-hunting indicator is of calcite-potassium feldspar veins containing pyritohedron pyrite.
直接找矿标志为含五角十二面体黄铁矿铁方解钾长脉。
The middle oil-member is characterized by medium-sized sandstone and pebbled sandstone, with fair sorting and subangular sphaericity.Rock types mainly were feldspar debris sandstone.
中油组主要沉积中砂
和含砾中砂，粒度整体较粗，分选性较好，磨圆度以次棱角状为主，类型为长屑砂。
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.
因此，斜长的钠长化可见于
期，而钾长的钠长化只发生于晚期。
Latites contain plagioclase feldspar (andesine or oligoclase) as large, single crystals (phenocrysts) in a fine-grained matrix of orthoclase feldspar and augite.
安粗中包含斜长（中长或奥长），是在正长和普通辉组的细粒基质中的大单晶体（斑晶）。
The feldspar group contains tectosilicate minerals with similar properties, including orthoclase, albite and labradorite. Feldspars make up more than 60% of the upper crust of the earth.
长系列包含网状矽酸盐的矿物并且有相似的属性,包括正长,钠长以及拉长.长构了60%的上层地壳.
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