petrogenesis การใช้

• These rocks are believed to be genetically related to the petrogenesis of KREEP.
• Experimental Studies of Fe-Mg Carbonates and their Role in Petrogenesis _ $ 55, 674.
• The origin of igneous rock, or petrogenesis, in continental arcs is more complicated than that in oceanic arcs.
• Since textural details contribute greatly to knowledge of the sequence of crystallization of the various mineral constituents in a rock, petrography progressed into petrogenesis and ultimately into petrology.
• Microstructure analysis describes the textural features of the rock, and can provide information on the conditions of formation, petrogenesis, and subsequent deformation, folding or alteration events.
• In 1997 Leake moved to Cardiff University where he continues work on the petrogenesis of the Galway Granite, and has recently completed a biography of geologist J . W . Gregory.
• Fluid inclusions trapped within granulite facies rocks have provided important clues on the petrogenesis of dry granulite facies rocks through the influx of CO 2-rich fluids from sub-lithospheric sources.
• The " "'Journal of Petrology " "'is a monthly peer-reviewed academic journal focused on the field of igneous and metamorphic petrology and petrogenesis.
• The petrogenesis of Lastarria rocks, like those of other volcanoes in the Central Volcanic Zone, involves the prolonged interaction with crustal rocks in magma chambers as well as the fractionation of certain minerals.
• The petrogenesis of continental arcs is generally different from that of oceanic arcs, so more calc-alkaline and alkaline rocks can be found at a continental arc, with fewer tholeiites and low-K rocks.
• He also has to his credit a research paper on " Petrology and Petrogenesis of Syenites from the Cuddapah Basin, Andhra Pradesh ", Journal, Geological Society of India, Volume 43, March 1994, pp 225 237.
• In basalt petrogenesis "'polybaric melting "'implies that liquids are incrementally separated from residues across a range of pressures and subsequently mix and move through the rock during melting and / or reactive porous flow in melt extraction ) along an adiabatic path.
• The realization that polybaric near-fractional melting may be the dominant form of basalt petrogenesis was a consequence of difficulties with a simpler paradigm involving only a chemically distinct primary melt, in equilibrium with residual mantle minerals, undergoing fractionation ( and transportation ) to yield basaltic and Mid-Ocean Ridge Basalt ( MORB ) lava.
• Though he was working full-time at McGill, he continued to spend summers in the field, financed by the GSC . In 1891 he began working on the Grenville of eastern Ontario, and by the following year had started to work on the alkaline rocks, were not merely mapped, but studied in detail using petrographic and chemical methods, and firm conclusions were drawn about their petrogenesis, all of which was unusual for a GSC Memoir at that time.