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Understanding Plate Tectonics and Geological Processes Study Guide

This guide explores the core principles of plate tectonics, including the structure of Earth's lithosphere and asthenosphere, the different types of plate boundaries and their associated geological phenomena (subduction zones, mid-ocean ridges, transform faults), and how these processes contribute to the formation of continents, mountain ranges, and volcanic arcs. It also touches upon specific regional examples like the Cascadia Subduction Zone and the concept of exotic terranes in continental a

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Geology Basics and Mineral Identification

Basics of Geology and Plate Tectonics

An exploration of Earth's internal layering, the scientific method, and the unifying concept of plate tectonics.

  • Scientific method
  • Earth's internal layering
  • Compositional scheme of Earth's layers
  • Rheology
  • Crust
  • Mantle
  • Core
  • Oceanic crust
  • Continental crust
  • Physical scheme of Earth's internal layers
  • Lithosphere
  • Asthenosphere
  • Mesosphere
  • Plate tectonics
  • Geologic time scale
  • Minerals

Identifying Minerals Through Physical Properties

Minerals are defined by six major characteristics including inorganic composition, solid state, natural occurrence, set chemical composition, orderly atomic arrangement, and characteristic physical properties.

  • Mineral definition
  • Hardness
  • Moh's Hardness Scale
  • Luster
  • Streak
  • Cleavage
  • Fracture
  • Density
  • Crystal Form
  • Weathering
  • Optical Properties
  • Unique Properties

Plate Tectonics and Igneous Rock Identification

Plate Tectonics and PNW Geology

The plate tectonic principle explains how plate boundaries, including convergent, divergent, and transform boundaries, shape the Earth and the specific geological setting of the Pacific Northwest.

  • Plate tectonics
  • Convergent Plate Boundary
  • Subduction Zone
  • Continental Collision Zone
  • Divergent Plate Boundary
  • Mid-Ocean Ridge
  • Rift
  • Transform Plate Boundary
  • Hotspot
  • Mantle plume theory
  • Cascadia Subduction Zone
  • Juan de Fuca plate
  • Explorer Plate
  • Farallon Plate
  • Exotic terrane
  • Accretion
  • Volcanic arc
  • Ophiolite
  • Melange

Classification and Identification of Igneous Rocks

  • Igneous rock
  • Intrusive/plutonic igneous rock
  • Extrusive/volcanic igneous rock
  • Magma
  • Lava
  • Texture
  • Composition
  • Aphanitic texture
  • Phaneritic texture
  • Glassy texture
  • Pyroclastic texture
  • Porphyritic texture
  • Pegmatitic texture
  • Vesicular texture
  • Felsic
  • Intermediate
  • Ultramafic
  • Plutons
  • Batholith

Types of Volcanoes and Igneous Rocks

This content explores major types of volcanoes, lava compositions, and the relationship between viscosity and eruption styles.

  • Shield volcanoes
  • Composite volcanoes
  • Cinder cones
  • Lava domes
  • Fissure eruptions
  • Magma composition
  • Viscosity
  • Pyroclastic material
  • Basalt
  • Andesite
  • Rhyolite
  • Flood basalts
  • Pumice
  • Felsic magma
  • Lava
  • Aa flows
  • Pillow lava

Sedimentary and Metamorphic Rock Processes

The Sedimentary Process and Rock Classification

An overview of the sedimentary process involving weathering, erosion, transportation, deposition, and lithification to form sedimentary rocks.

  • Weathering
  • Chemical Weathering
  • Physical Weathering
  • Erosion
  • Sediment
  • Transportation
  • Deposition
  • Lithification
  • Compaction
  • Cementation
  • Clastic Sedimentary Rock
  • Organic Sedimentary Rock
  • Chemical Sedimentary Rock
  • Principle of Uniformitarianism
  • Environments of Deposition

Metamorphism and Metamorphic Rock Types

Metamorphism is the process of adding temperature and pressure to a pre-existing parent rock resulting in textural and compositional change.

  • Mélange or Marine Sequences
  • Ophiolites
  • Lake Deposits of Sediment
  • Metamorphism
  • Metamorphic Grades
  • Progressive Metamorphism
  • Uplift
  • Contact Metamorphism
  • Regional Metamorphism
  • Foliation
  • Muscovite
  • Slate
  • Phyllite
  • Schist
  • Index Minerals
  • Quartzite
  • Marble
  • Metaconglomerate

Sedimentary Rock Identification and Classification

Sedimentary rocks are classified by texture and composition, including clastic, organic, and chemical textures.

  • sedimentary rocks
  • clastic textures
  • organic textures
  • chemical textures
  • rock composition
  • sediment size
  • fossils
  • mineral precipitation
  • calcite

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