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feldspathic adj.【礦物】長石(質)的;含長石的;像長石的。

feldspathoid

According to rock and mineral analysis , the formation consists dominantly of detrital feldspathic fine - sandstone with medium and silt sandstone secondly . lithologically , the content quartz is lower than those of feldspar and detritus , and the cement is dominated by clay , which gives the feature of low compositional maturity and low textural maturity 館上段儲層巖性以巖屑質長石細砂巖為主,其次為中細砂巖和粉砂巖,巖石中石英含量低,而長石、巖屑含量高,膠結物以泥質為主,表現出低成分成熟度和低結構成熟度的特點。

The feldspathic sandstones belong to this formation of composite sources metamorphic , sedimentary , and igneous sources , but mainly from metamorphic source due to the high abundance of brown cl colors of quartz 上述情況表明,研究區長石砂巖物源母巖包括變質巖、沉積巖與火成巖,但從發育大量棕色石英顆粒來看,物源以變質巖為主。

The reservoir from the lower part of qiketai formation to xishanyao formation is mainly composed of feldspathic litharenite , which is the second lithologic section 七克臺組下部-西山窯組儲集層以長石巖屑砂巖為主,屬于第二巖性段。

Preliminary tests and study on construction methods of building dams on feldspathic sandstone 砒砂巖筑壩施工方法初步試驗研究

The chromite deposits in the muskox complex occur only in feldspathic peridotite . 在穆斯科克斯雜巖體中,鉻鐵礦礦層僅產于長石質橄欖巖中。