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dacite


'dacite' can also refer to...

dacite

dacite

dacite

dacite

Experimental Constraints on the Origin of the 1991 Pinatubo Dacite

Dacite Petrogenesis on Mid-Ocean Ridges: Evidence for Oceanic Crustal Melting and Assimilation

Evolution of Holocene Dacite and Compositionally Zoned Magma, Volcán San Pedro, Southern Volcanic Zone, Chile

Origin of Minette by Mixing of Lamproite and Dacite Magmas in Veliki Majdan, Serbia

Mechanisms of Crustal Anatexis: a Geochemical Study of Partially Melted Metapelitic Enclaves and Host Dacite, SE Spain

Complex Phenocryst Textures and Zoning Patterns in Andesites and Dacites: Evidence of Degassing-Induced Rapid Crystallization?

Hydrogen Isotope Investigation of Amphibole and Glass in Dacite Magmas Erupted in 1980–1986 and 2005 at Mount St. Helens, Washington

Experimental Petrology of the 1991–1995 Unzen Dacite, Japan. Part I: Phase Relations, Phase Composition and Pre-eruptive Conditions

Assimilation and Fractional Crystallization Controlled by Transport Process of Crustal Melt: Implications from an Alkali Basalt–Dacite Suite from Rishiri Volcano, Japan

Inherited and Magmatic Zircon from Neogene Hoyazo Cordierite Dacite, SE Spain—Anatectic Source Rock Provenance and Magmatic Evolution In Memoriam Professor Chris Powell, † 2001.07.21

Andesites and Dacites from Daisen Volcano, Japan: Partial-to-Total Remelting of an Andesite Magma Body

Adakitic Dacites Formed by Intracrustal Crystal Fractionation of Water-rich Parent Magmas at Nevado de Longaví Volcano (36·2°S; Andean Southern Volcanic Zone, Central Chile)

Experimental Petrology of the 1991–1995 Unzen Dacite, Japan. Part II: Cl/OH Partitioning between Hornblende and Melt and its Implications for the Origin of Oscillatory Zoning of Hornblende Phenocrysts

Petrological and Experimental Constraints on the Pre-eruption Conditions of Holocene Dacite from Volcán San Pedro (36°S, Chilean Andes) and the Importance of Sulphur in Silicic Subduction-related Magmas

The 15 June 1991 Eruption of Mount Pinatubo. I. Phase Equilibria and Pre-eruption P–T–fO2–fH2O Conditions of the Dacite Magma

 

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A light-coloured, fine-grained igneous rock containing 63–70 wt. % SiO2, as well as plagioclase feldspar, alkali feldspar, quartz, biotite, and hornblende as essential minerals, and sphene, apatite, and magnetite as accessory minerals. Plagioclase feldspar dominates over alkali feldspar in a 2:1 ratio. Dacites are the volcanic equivalents of granodiorites and are found as members of the calc-alkaline series, typically developed as eruptive products on the continental side of oceanic-continental plate subduction zones. They are often surprisingly coarse-grained for lavas.

Subjects: Earth Sciences and Geography.


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