What do I have to know for the mid-term

What do I have to know for the Igneous mid-term?

Midterm I Exam Review Topics

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Igneous petrology:

Structures characteristic of igneous rocks in general (xenoliths, vesicles, chilled margins, baking of the country rock on contacts, p. 5-6[1]); Intrusive vs extrusive rocks (p. 5-6), Concordant vs discordant bodies (p. 5-6); Pyroclastic vs non-fragmental volcanic rocks (p. 8), Effusive vs. Explosive eruptions (p. 75); Phaneritic vs. Aphanitic rocks (p.10), Phenocryst vs groundmass (p. 10), Mafic vs felsic minerals (p. 11), Morphology of intrusive bodies, Types of intrusions (Sills, dykes, lopoliths, laccoliths, stocks, plutons, batholiths, p.11-15), Volcanic landforms; Stratavolcano vs. Shield volcano vs. Cinder cone (p. 76); Dyke swarms, Volcanic products: tephra (p. 81), ash, lapilli (p. 85), ignimbrites (p. 84-86);

Rock-forming vs accessory minerals; Composition of common rock-forming minerals (Quartz, Alkali feldspars, Plagioclase feldspars, Olivine, Orthopyroxenes, Clinopyroxenes, Hornblende, Muscovite, Biotite, P. 22-23); Mineralogical classification of igneous rocks (p. 55, 57-59); Corresponding intrusive and extrusive rock names (granite, diorite, gabbro, peridotite, rhyolite, andesite, basalt, komatiite). Chemical classification of igneous rocks (p. 65-66); TAS diagram (p. 66);

Partial melting; Phases and phase diagrams (p. 94); The freezing point depression, Eutectic temperature and eutectic composition on a phase diagram (p. 98), Localization of partial melting in crystal aggregates (p. 149); T-X phase diagram for the Anorthite-Albite system (p. 102-103), T-X phase diagram for the Forsterite-Fayalite system (p. 127); Solidus vs. Liquidus (p. 51), Difference in bulk and mineral composition between the crust and the mantle (p. 137-138); Eutectic partial melts of the crust; Eutectic partial melts of the mantle; Lever Rule (p. 97), Equilibrium crystallization vs. fractional crystallization (p. 116-117), Layered Mafic Intrusions (p. 194-195); Layered Mafic Intrusions as a natural example of fractional crystallization (p. 123-128); Bowen’s reaction series (p. 30-31)

Basalt (p. 46), Alkaline vs. Subalkaline basalt (p. 164); Mid-Ocean Ridges (p. 151-156), Basalts in MOR (p. 72), Slow and fast speading MORs (p. 152-156); Genesis of MORB as a result of adiabatic rise (p. 159); Adiabate vs. geotherm and solidus; Ophiolites (p. 177-180); Ocean island basalts (p. 161-163); Continental Flood Basalt (p. 74, 191-194), Lithosphere vs. Asthenosphere (p. 139), Komatiite (p. 195)

Andesite (p. 42-46), Cross section of a subduction zone (p. 169-170); Granite (p. 35); Generation of magma in subduction zones (p. 173-174); Dry vs. wet solidus (p. 148); Continental Magmatic Arcs (p. 180-181), Island Arcs (p 168-176); Orogeny and craton assembly (lecture only)