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分級結晶作用

3 件の記事

Schematic diagrams showing the principles behind fractional crystallisation in a magma. While cooling, the magma evolves in composition because different minerals crystallize from the melt. 1: olivine crystallizes; 2: olivine and pyroxene crystallize; 3: pyroxene and plagioclase crystallize; 4: plagioclase crystallizes. At the bottom of the magma reservoir, a cumulate rock forms.

分級結晶作用マグマの進化と岩石形成のメカニズム

分級結晶作用マグマ分化火成岩結晶分化
During cooling, crystals will form from the melt. Thus, the crystal/melt ratio increases, generating a magma, a crystal-mush, and finally a cumulate rock.

クリスタルムッシュマグマの結晶化と地殻内での挙動

クリスタルムッシュマグマ分級結晶作用火成岩
Chromitite and anorthosite layered igneous rocks in Critical Zone UG1 of the Bushveld Igneous Complex at the Mononono River outcrop, near Steelpoort, South Africa

層状貫入岩の構造と経済的価値地球内部のダイナミズムが作る地質学的層序

層状貫入岩分級結晶作用マフィックウルトラマフィック