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feldspathic
With the lowest abundances of Fe, Ti, and Th found on the Moon, the lunar highland terrains are quite homogeneous with two major large feldspathic units, one being slightly more mafic than the other.
      
The differences between the simulated melt compositions are interpreted with regard for variations in the temperature and composition of the parental magnesian liquids that assimilated compositionally similar feldspathic material.
      
Feldspathic metasomatic rocks from the Lermontovo deposit, Primorye, Russia
      
The deposition of quartz-feldspathic flyschoid sequences as products of scouring of sialic basement of the continental block was inherent to the Ukelayat type of sedimentation.
      
It was established that the assimilation of parental mantle basaltic melts by crustal, mainly feldspathic material is a decisive factor in the formation of multiple gabbro-granite complexes.
      
The wide development of K-feldspathic metasomatites was established for the first time in the zone of structural-stratigraphic-unconformity and their role as a source of ore elements during ore precipitation was determined.
      
45 metal plates veneered with feldspathic porcelain were fabricated.
      
These experiments clearly demonstrated that the moon's crust is chemically differentiated and the highlands feldspathic in character.
      
Light feldspathic rocks which constitute the highland areas are components of the primeval crust of the Moon.
      
Two main types were found: (1) Al-rich refractory ores associated with harzburgites and feldspathic periodotites and (2) more Cr-rich varieties associated with lherzolites.
      
In contrast, feldspathic and sericitic alterations usually predominate in F-rich environments.
      
The orebody, spatially associated with a footwall microcline gneiss that contains as much as 12wt‰ K2O, occurs in the lower part of the Mine Sequence which also comprises (kyanite-) mica schist and quartzo-feldspathic to siliceous rocks.
      
The lode-gold mineralization occurs in a N-S trending, steep westerly dipping quartz-vein system that follows the structural contact between underlying feldspathic gneisses and the volcanosedimentary sequence of the Megado belt.
      
Mo-Bi mineralization occurs in subvertical and subhorizontal quartz-muscovite-±?K-feldspar veins surrounded by early albitic and later K-feldspathic alteration halos in monzogranite of the Archean Preissac pluton, Abitibi region, Québec, Canada.
      
In this paper we document the distribution of PGM within the Eastern Layered Series (ELS) on Rum, which comprises 16 alternating units of olivine-dominant feldspathic peridotite grading to plagioclase-dominant allivalite.
      
The sandstones are feldspathic litharenites averaging Q65-F10-R25, with detrital grains of quartz, rock fragments, muscovite, and plagioclase and biotite that were altered to albite and chlorite, respectively, during metamorphism.
      
The unmineralized host schists are chemically and mineralogically uniform in composition, but include two end-member rock types: feldspathic schist and micaceous schist.
      
In contrast, hydrothermally altered feldspathic schist is characterized by mineralised black microshears and veinlets formed during shear-zone related brittle deformation.
      
Carrollite is the major cobalt-bearing phase and is restricted to fault-propagation fold zones within a feldspathic arenite.
      
Sapphires are classified into two main groups with δ18O in the range of 4.7 to 9.0‰ (pyroxenite and feldspathic gneiss) and 10.7 to 15.6‰ (skarn in marble from Andranondambo).
      
 

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