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- https://geo.libretexts.org/Bookshelves/Geography_(Physical)/California_Geography_(Patrich)/07%3A_Californias_Regions_and_Provinces/7.04%3A_THE_11_GEOMORPHIC_PROVINCESCalifornia's geomorphic provinces are distinct geologic regions, each with unique features defined by geology, faults, topographic relief, and climate. There are eleven provinces, including the Great ...California's geomorphic provinces are distinct geologic regions, each with unique features defined by geology, faults, topographic relief, and climate. There are eleven provinces, including the Great Valley, Modoc Plateau, Klamath Mountains, Sierra Nevada, Transverse Ranges, Cascade Range, Coast Ranges, Peninsular Ranges, Basin & Range, Mojave Desert, and Colorado Desert. These provinces offer diverse landscapes.
- https://geo.libretexts.org/Sandboxes/ajones124_at_sierracollege.edu/Geology_of_California_(DRAFT)/04%3A_Geologic_Structures_and_Seismology/4.03%3A_Jointing_and_FaultingThis page examines brittle deformation in rocks, emphasizing jointing and faulting processes. Joints are fractures formed under tension or cooling, while faults involve the relative movement of rock b...This page examines brittle deformation in rocks, emphasizing jointing and faulting processes. Joints are fractures formed under tension or cooling, while faults involve the relative movement of rock bodies, leading to earthquakes. Various fault types are described, including dip-slip (normal and reverse) and strike-slip, each linked to specific stress conditions. Strike-slip faults are characterized by lateral movements, with left-lateral and right-lateral distinctions.
- https://geo.libretexts.org/Sandboxes/ajones124_at_sierracollege.edu/Geology_of_California_(DRAFT)/04%3A_Geologic_Structures_and_Seismology/4.06%3A_Chapter_SummaryA summary of the Geologic Structures and Seismology chapter.
- https://geo.libretexts.org/Sandboxes/ajones124_at_sierracollege.edu/Geology_of_California_(DRAFT)/04%3A_Geologic_Structures_and_Seismology/4.01%3A_Stress_and_StrainThis page discusses stress in rocks, categorized as normal (compression and tension) or shear stress. Rocks respond to stress through strain, resulting in elastic, plastic deformations, or fractures. ...This page discusses stress in rocks, categorized as normal (compression and tension) or shear stress. Rocks respond to stress through strain, resulting in elastic, plastic deformations, or fractures. Deformation processes include tilting, folding, and faulting. Geologists measure deformation via the orientation of geological features (strike and dip) to infer tectonic forces and understand a region's geological history and structural relationships.
- https://geo.libretexts.org/Sandboxes/ajones124_at_sierracollege.edu/Geology_of_California_(DRAFT)/04%3A_Geologic_Structures_and_Seismology/4.05%3A_Measuring_EarthquakesThis page discusses seismometers, modern earthquake detection networks, and the evolution of magnitude measurement from the Richter to moment magnitude scale. It highlights California's seismic data c...This page discusses seismometers, modern earthquake detection networks, and the evolution of magnitude measurement from the Richter to moment magnitude scale. It highlights California's seismic data collection systems and the critical role of ground motion data in engineering safety. The U.S. Geological Survey's resources, including ShakeMaps and citizen tools, are mentioned, alongside the continued uncertainty in earthquake prediction.
- https://geo.libretexts.org/Sandboxes/ajones124_at_sierracollege.edu/Geology_of_California_(DRAFT)/03%3A_Plate_TectonicsThe page introduces the theory of plate tectonics, explaining how it accounts for the Earth's geological features and changes over time. It highlights the difficulties in the theory's acceptance due t...The page introduces the theory of plate tectonics, explaining how it accounts for the Earth's geological features and changes over time. It highlights the difficulties in the theory's acceptance due to lack of a driving mechanism for continental movement and geographic biases among early 20th-century geologists. The text also outlines learning objectives related to understanding different plate boundaries, the driving forces behind plate movements, and California's plate boundaries.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/09%3A_Mountain_Building/9.01%3A_Tectonic_Stress_and_Geologic_StructuresThis page discusses tectonic stress and its geological consequences, including mountain building and earthquakes from plate tectonics. It explains rock stresses—elastic, plastic deformation, and fract...This page discusses tectonic stress and its geological consequences, including mountain building and earthquakes from plate tectonics. It explains rock stresses—elastic, plastic deformation, and fracturing—related to rock types and conditions. Geological structures like folds (monoclines, anticlines, synclines) and faults (normal, reverse, strike-slip) are described. The text ultimately connects these processes to mountain formation.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/04%3A_Earths_Interior_Processes/4.01%3A_Earths_InteriorThis page explains the Earth's interior, which has three layers: the thin, brittle crust, the hot solid mantle, and the iron-nickel core, composed of a liquid outer core and solid inner core. Scientis...This page explains the Earth's interior, which has three layers: the thin, brittle crust, the hot solid mantle, and the iron-nickel core, composed of a liquid outer core and solid inner core. Scientists use seismic waves from earthquakes to study these layers, as drilling has only reached the crust. Convective currents in the mantle and outer core are essential for geological processes and the generation of Earth's magnetic field.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/04%3A_Earths_Interior_Processes/4.02%3A_Plate_TectonicsThis page details plate tectonics, explaining Earth's lithosphere movement and its impact on earthquakes and volcanoes. It discusses Alfred Wegener's continental drift theory, evidence supporting it, ...This page details plate tectonics, explaining Earth's lithosphere movement and its impact on earthquakes and volcanoes. It discusses Alfred Wegener's continental drift theory, evidence supporting it, and the mechanism of seafloor spreading. The text describes types of tectonic plate boundaries: divergent (mid-ocean ridges), convergent (subduction and mountain formation), and transform (like the San Andreas Fault).
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/04%3A_Earths_Interior_Processes
- https://geo.libretexts.org/Sandboxes/ajones124_at_sierracollege.edu/Geology_of_California_(DRAFT)/19%3A_California's_Earthquake_History_and_HazardsThis page discusses the devastating impact of the 1872 Lone Pine earthquake, which led to 88% of buildings collapsing and a 10% death rate. It highlights California's ongoing vulnerability due to inad...This page discusses the devastating impact of the 1872 Lone Pine earthquake, which led to 88% of buildings collapsing and a 10% death rate. It highlights California's ongoing vulnerability due to inadequate construction practices and proximity to fault lines. Despite advancements, many modern buildings are still not earthquake-resilient. It emphasizes the need for improved planning and understanding of historical earthquake patterns to enhance urban resilience against future seismic events.
