نتایج جستجو برای: petrography
تعداد نتایج: 1284 فیلتر نتایج به سال:
Petrography and chemistry of minerals showing that Eocene alkaline volcanic rocks in southwestern of Germi (Talesh zone, NW Iran) mostly have basaltic composition. Mineralogically these rocks are composed of diopsidic clinopyroxene and labradoritic plagioclase phenocrysts. The microlithic and glassy groundmass composed of sanidine, clinopyroxene, biotite, pargasitic amphibole and magnetite asso...
Multistage fluid activities and hydrocarbon accumulation processes have occurred in the Dengying Formation of Sichuan Basin during its long geological history. Petrography cathodoluminescence observations; situ microanalysis rare earth elements, carbon, oxygen, strontium isotopes; inclusion microthermometric experiments; laser Raman burial history; thermal generation history simulation been app...
Determining the fracture toughness of rock materials is a challenging, costly, and time-consuming task, as fabricating sharp crack in specimens will lead to failure specimen, preparing for determining requires special equipment. In this paper, relationship between mode I (KIC) with index properties, mineralogy, petrography limestone investigated using simple nonlinear simple/multiple linear reg...
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