Abstract The post-infrared (post-IR) pulsed blue light stimulated luminescence (PBLSL) signal has been employed to determine the equivalent dose (D e ) of feldspar contaminated quartz grains, but it sometimes suffers from interference feldspars. Since green (GLSL) feldspars might be more reduced by a prior IR stimulation, we compared characteristics post-IR PBLSL and GLSL (post-IR PGLSL) signal...

Field evidences, petrographic features and geochemical studies show that the garnet-muscovite granitoids of Boland Parchin area are S-type and they have sharp contact with the host rocks (metamorphic rocks). Granitoids of Boland Parchin contain minerals such as quartz, K-feldspars, plagioclase, biotite and Al-rich minerals (such as muscovite and garnet). Chemical composition of K-feldspars, pla...

The present study deals with the petrographic investigations revealed that sandstone of Gercus Formation studied samples units composed primarily rock fragments (sedimentary, igneous and metamorphic), quartz grains (monocrystalline polycrystalline), feldspars (orthoclase, microcline plagioclase). These components are cemented by carbonate iron oxides. sandstones classified as litharenites, Sand...

the sargaz granitic intrusion has been emplaced in sargaz ophiolitic suite, south-east of sanandaj-sirjan metamorphic zone, south of kerman province. the central part of the intrusive body contains pinkish coarse-grained granite, but the fractured northern part, neighboring chah-mazraeh fault, has been subjected to pervasive na-metasomatism and related subsolidus reactions. in the northern alte...