Reusable sources for geology, planetary environments and plate tectonics.
Full title: Seismic investigations of the O'Higgins Seamount Group and Juan Fernández Ridge: Aseismic ridge emplacement and lithosphere hydration. Tectonics 23. Wide-angle seismic constraints test crustal thickening and hydration near an Andean flat-slab transition.
Earth and Planetary Science Letters 311, 386–395. The held examination supplies the plotted filtered observations. The institutional record verifies the bibliographic identity; the published abstract discusses the young-ocean heat-flow deficit and hydrothermal circulation. No original observational plot is republished here.
Geophysical Research Letters 41, 3382–3389. Sections 4.2–4.3 explain the topographic gravity prediction and the residual Bouguer gravity anomaly field. This is the gravity-model publication credited by the 2022 examination.
Geochemistry, Geophysics, Geosystems 15, 1515–1532. Uses geodetic, uplift and paleoseismic observations to investigate central-margin creep and the possible role of Siletzia.
Geophysical Research Letters 45, 6954–6962. Onshore–offshore seismic tomography constrains along-strike mantle structure; sections 3–4 distinguish observations from the proposed subslab mantle buoyancy mechanism.
Nature 476, 69–72. Computational accretionary-collision hypothesis. The author institution also describes the model and its assumptions at news.ucsc.edu/2011/08/big-splat/. The full publisher text was not available during this bounded consultation.
Astrophysical Journal Letters 788, L42. Author preprint: arxiv.org/pdf/1406.2020. Sections 2–4 specify the early locking, irradiation, condensation and mixing requirements of the primordial Earthshine hypothesis.
Official United States Geological Survey account of the oceanographic, magnetic and seismic evidence behind plate tectonics. The page is a chapter of This Dynamic Earth, not a newly discovered examination solution.
Research by Catherine A. Rychert and Peter M. Shearer, Science 324(5926), 495–498. Global converted-wave observations constrain a sharp interface whose interpretation varies by tectonic setting, including possible internal cratonic structure. Primary abstract and metadata: pubmed.ncbi.nlm.nih.gov/19390041/
Research by David A. D. Evans and Ross N. Mitchell, Geology 39(5), 443–446. Combines paleomagnetism with continental-margin records to reconstruct a core of Nuna and test its assembly and breakup. Author-hosted full text with supplementary material: earth.yale.edu/sites/default/files/2024-09/Evans%20doc%2043.pdf
Institutional explanation by the British Geological Survey. Its plate-driving discussion distinguishes mantle convection, ridge push and slab pull and explains the association between subducting edges and plate speed.
The laboratory's primary methods description explains stored radiation dose, resetting by light or heat, the equivalent-dose-to-dose-rate age equation, and assumptions concerning bleaching and environmental dose rate.
Reusable locator for Table 1, “Geomorphic features associated with active faults”, in the primary mapping report Late Quaternary Faulting, Death Valley–Furnace Creek Fault System, California-Nevada, USGS Bulletin 1991. The normal-slip column lists scarps, faceted spurs, oversteepened mountain-front bases and rejuvenated valley floors. The official publication record confirms the report identity and 1991 publication year: pubs.usgs.gov/publication/b1991 .
The institutional Earthquake Hazards Program page explains how disrupted young layers and unbroken overlying cover identify event horizons, and how ages above and below the affected horizon bracket a past earthquake. It distinguishes primary fault displacement from secondary shaking evidence.
Mission-team account of GRAIL measurements and impact-basin models explaining lunar mascons, 30 May 2013.
Official explanation of megathrust earthquakes, crustal earthquakes and deep intraslab events in the Pacific Northwest.
Pure and Applied Geophysics 116, 615–626. Experimental rock friction synthesis underpinning Byerlee's law.
Authors: Jana C. Schierjott, Garrett Ito, Mark D. Behn, Xiaochuan Tian, Thomas Morrow, Boris J. P. Kaus, Javier Escartín.
Scientific Reports 13, 9259. Figure 1b is the source of the Oxford 2024 exam ridge-transform image: white lines are ridge axes, black lines are transforms, and arrows point to detachment faults rather than showing plate motion.
Journal of Geophysical Research 117, E09005. Tests solid-state anelasticity against lunar dissipation and Love numbers; mantle melt is not required by every constraint, but the model has a tidal frequency-dependence discrepancy.
Authors: Chiara Boschi, Gretchen L. Früh-Green, Adélie Delacour, Jeffrey A. Karson, Deborah S. Kelley.
Geochemistry, Geophysics, Geosystems 7, Q01004. Field and analytical evidence for coupled alteration, metasomatism and deformation at an oceanic detachment system.
Journal of Geophysical Research 109, B11303. Tests stress-orientation evidence for strong and weak fault models, discussing limits of frictional heating and borehole observations.
Nature Geoscience 6, 395–399. Laboratory slab rollback experiments generate opposite thermal progressions. The High Lava Plains branch is a passively advected thermal anomaly, distinct from the deformed conduit beneath the Snake River Plain. Author-uploaded full text: www.researchgate.net/publication/236694225_Bifurcation_of_the_Yellowstone_plume_driven_by_subduction-induced_mantle_flow
Earth and Planetary Science Letters 292, 79–88. Models primary liquids and ambient mantle potential temperature; estimates thick ancient oceanic crust and distinguishes non-arc basalts from komatiites.
Journal of Geophysical Research 99, 15359–15374. An influential age-province comparison; its preserved crust thicknesses do not measure all original Archean crust.
Science 351, 372–375. Uses Ni/Co and Cr/Zn ratios to infer a change in upper continental crust composition during the Archean; the inferred timing of global plate tectonics is an interpretation.
Reviews of Geophysics 33, 267–309. Synthesizes seismic, geochemistry and petrological evidence for heterogeneous upper, middle and lower continental crust.
Analyzes distinct compositional groups of ancient felsic rocks and their inferred melting conditions, supporting nonunique tectonic interpretations of tonalite-trondhjemite-granodiorite. Lithos 123, 21–36. Publisher record: www.sciencedirect.com/science/article/pii/S0024493710002665
Uses diamond inclusions to propose a change in crustal recycling into the lithospheric mantle. The inferred onset interpretation remains distinct from the direct chemical observations. Science 333, 434–436. Abstract: pubmed.ncbi.nlm.nih.gov/21778395/
Distinguishes crustal generation, reworking, growth and preservation using age and isotopic constraints. Geoscience Frontiers 10, 165–173. Author institutional record: research.monash.edu/en/publications/rates-of-generation-and-growth-of-the-continental-crust/
Statistical analysis of metamorphic temperature/pressure distributions and their secular evolution. Nature 572, 378–381; DOI 10.1038/s41586-019-1462-2.
Three-dimensional geodynamic modelling tests mantle plume-driven subduction initiation and sensitivity to plate structure and weakening. Nature 527, 221–225; DOI 10.1038/nature15752.
Tests a recycled-crust reaction model for pyroxenite-bearing sources of Hawaiian basalt. Nature 434, 590–597; DOI 10.1038/nature03411.
Evaluates fluid-mediated carbon transfer, solid transport and upper-plate storage in the subduction carbon budget. PNAS 112, E3997–E4006. Abstract and metadata: pubmed.ncbi.nlm.nih.gov/26048906/
Thermal-petrological models estimate the variable distribution and release of water in descending slabs. Journal of Geophysical Research 116, B01401. Author-hosted paper: hacker.faculty.geol.ucsb.edu/viz/vanKeken11_H2O_subducting_slabs.pdf
Institutional account, 27 June 2022, of experiments on radiation-driven degradation of organic molecules in Martian analogue materials and the implications for sampling depth.
Presents orbital mineralogical and geological evidence for a candidate ancient deep-water hydrothermal circulation system. Nature Communications 8, 15978; DOI 10.1038/ncomms15978.
Rover imaging reconstructs river delta deposition and later flood activity. Science 374, 711–717. Author metadata and abstract: pubmed.ncbi.nlm.nih.gov/34618548/
Rover observations of lacustrine deposits and an inferred habitable chemical environment. Science 343, 1242777; online December 2013. Primary NASA repository: ntrs.nasa.gov/citations/20150008374
Models coupled thermal evolution and carbon cycling on stagnant-lid planets, demonstrating conditional prospects for long-lived habitability without plate tectonics. Astrobiology 18, 873–896. Author preprint: arxiv.org/abs/1712.03614
Proposes a negative feedback coupling silicate weathering to atmospheric carbon dioxide and surface temperature. Journal of Geophysical Research 86(C10), 9776–9782.
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