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25 results for “plate boundaries”
Global plate boundary evolution and kinematics since the late Paleozoic
<h3>Global plate boundary evolution and kinematics since the late Paleozoic </h3> <p>Kara J. Matthews*^, Kayla T. Maloney*, Sabin Zahirovic*, Simon E. Williams*, Maria Seton*, R. Dietmar Müller*</p> <p>* EarthByte Group, School of Geosciences, The University of Sydney, Sydney, NSW 2006, Australia<br>^ Present address: Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, UK</p> <p>Contact: karajmatthews@gmail.com</p> <p>CORRECTION applied for the Pacific plate prior to 83 Ma based on Torsvik et al. (2019)</p> <h3><br>Supplementary Material</h3> <p>We provide a digital plate model files (including rotations and geometries) with this publication. These files allow for the visualisation and/or manipulation of the late Paleozoic to present-day (410-0 Ma) global plate motion model presented in this study. </p> <p>#########################################<br>The digital plate model files are compatible with the open-source GPlates plate reconstruction software (<a href="https://www.gplates.org" target="_blank" rel="noopener">www.gplates.org</a>):</p> <p>(1) Rotations - Global rotation model that contains the reconstruction poles that describe the motions of the continents and oceans.<br>- <strong>Global_EB_250-0Ma_GK07_Matthews_etal.rot</strong> (455 KB)<br>- <strong>Global_EB_410-250Ma_GK07_Matthews_etal.rot</strong> (115 KB) - in the comments 'POLE_RECALCULATED' means that we recalculated that finite pole of rotation such that the moving plate moves relative to a neighbouring plate rather than directly to the absolute reference frame (see Section 2.2.1 of the main text for more details). This process should have a minimal effect on the absolute motion of the plate.</p> <p>(2) Plate polygons and boundary geometries - Topologically closed plate polygons are constructed from the intersection of ridges, transforms, subduction zones and other plate boundary geometries. These 'resolved topologies' are valid at 1 Myr intervals (410-0 Ma). The plate boundary geometries and plate polygons have been assigned plate reconstruction IDs to allow them to be reconstructed using the supplied rotation file.<br>- <strong>Global_Mesozoic-Cenozoic_plate_bounds_Matthews_etal.gpml</strong> (36 MB)<br>- <strong>Global_Paleozoic_plate_bounds_Matthews_etal.gpml</strong> (8.7 MB)<br>- <strong>TopologyBuildingBlocks_Matthews_etal.gpml</strong> (2 MB) - this file has not been modified from Müller et al. (2016)</p> <p>(3) Coastlines - Geometries of the present-day coastlines.<br>- <strong>Global_coastlines_low_res_Matthews_etal.gpml</strong> (25.4 MB)<br>- <strong>Global_coastlines_low_res_Matthews_etal.shp</strong> (2.9 MB inc. auxillary files, datum-WGS 1984)<br>NOTE: From 410 to 320-310 Ma Kazakhstania is represented as one or two ('Internal' and 'External' Kazakhstania - Domeier and Torsvik, 2014) ovate polygons. Kazakhstania is highly deformed following a long and complicated history, and so for simplicity we avoid using their present-day outlines in the earlier part of the model.</p> <p>(4) Static polygons (optional) - Includes ocean isochron and terrane polygon geometries.<br>- <strong>Global_EarthByte_GPlates_PresentDay_StaticPlatePolygons_Matthews_etal.shp</strong> (2.7 MB inc. auxillary files, datum-WGS 1984)</p> <p>(5) Continenal polygons (optional) - Includes continental terrane polygon geometries and excludes oceanic lithosphere.<br>- <strong>Global_EarthByte_GPlates_PresentDay_ContinentalPolygons_Matthews_etal.shp</strong> (804 KB inc. auxillary files, datum-WGS 1984)</p> <p>GPLATES: <br>To view the model load all files in GPlates (either drag and drop files onto the globe OR from the navigation bar at the top of the screen click File -> Open Feature Collection and select files). Both rotation files (1) and each of the three plate geometry files (2) need to be loaded for the model to work properly. It is recommended that coastlines (3) are loaded to see how the continents move, however only one coastline file is necessary (.gpml or .shp). The static polygons (4) and continental polygons (5) are optional. </p> <p>The two rotation files need to be 'connected' in order for the model to run continuously from 410 to 0 Ma. In the GPlates 'Layers' window (opened from the main navigation bar, click 'Window' -> 'Show Layers') the rotation files will be highlighted yellow, yet only one will have a yellow tick next to it to signify it is being used. Click the small black triangle to the left the ticked rotation file. Under 'Inputs' -> 'Reconstruction features' click 'Add new connection' and then select the other rotation file from the list of files that will appear. This will ensure that both rotation files are active. </p> <p>Finally, it is recommended to experiment with geometry visibility in order to make the globe less cluttered. For instance, from the navigation bar click View -> Geometry Visibility and untick 'Show Line Geometries'. Alternatively, files can be toggled on and off using the tick boxes in the Layers window. For more information about using GPlates, a set of user tutorials can be accessed from the GPlates website - http://www.gplates.org/docs.html.</p> <p><br>#########################################<br>We also provide a list of the plate reconstruction IDs used in the model:</p> <p>Plate IDs - A list of all the plate IDs used in the rotation and geometry files and their corresponding plate names.<br>- <strong>EarthByte_Plate_ID_Table_Matthews_etal.txt</strong> (33 KB)</p> <p>#########################################<br>MODEL REFERENCING:<br>When using our model, in addition to citing this publication:</p> <p>Matthews, K.J., Maloney, K.T., Zahirovic, S., Williams, S.E., Seton, M. and Müller, R.D., 2016, Global plate boundary evolution and kinematics since the late Paleozoic, Global and Planetary Change, in press, accepted 3 October 2016.</p> <p>please also consider citing the studies of Domeier and Torsvik (2014) and Müller et al. (2016) which served as the basis for this model in the late Paleozoic and Mesozoic-Cenozoic, respectively, and cite any other study that describes refinements to the plate reconstructions in your region of interest. See Section 2 and Section 3 of the main text for more information on how the present model was constructed.</p> <p>- Domeier, M., & Torsvik, T. H. (2014). Plate tectonics in the late Paleozoic. Geoscience Frontiers, 5(3), 303-350. DOI:<a href="https://doi.org/10.1016/j.gsf.2014.01.002" target="_blank" rel="noopener">10.1016/j.gsf.2014.01.002</a><br>- Müller, R. D., Seton, M., Zahirovic, S., Williams, S. E., Matthews, K. J., Wright, N. M., Shephard, G. E., Maloney, K., Barnett-Moore, N., Hosseinpour, M., Bower, D. J., & Cannon, J. (2016). Ocean Basin Evolution and Global-Scale Plate Reorganization Events Since Pangea Breakup. Annual Review of Earth and Planetary Sciences, 44(1). DOI:<a href="https://doi.org/10.1146/annurev-earth-060115-012211" target="_blank" rel="noopener">10.1146/annurev-earth-060115-012211</a></p> <p>Note: We have recently fixed some issues in this model, namely the motion of the Pacific plate (following Torsvik et al., 2019), and some MOR topologies in the Arctic. The fixes are in the model files included in this folder, but the old (published) version of the model is included in a sub-folder called "_OLD_MODEL_DO_NOT_USE". </p> <p>Torsvik, T. H., B. Steinberger, G. E. Shephard, P. V. Doubrovine, C. Gaina, M. Domeier, C. P. Conrad, and W. W. Sager (2019), Pacific‐Panthalassic reconstructions: Overview, errata and the way forward, Geochemistry, Geophysics, Geosystems, 20(7), 3659-3689.</p> <p> </p>
Philippine Sea plate and surrounding magmatism reveal the Antarctic-Zealandia, Pacific, and Indian mantle domain boundaries
<p>This file includes Supplementary data 1-5 and the Supplementary movie 1 for: Shengping Qian, Jeremy Tsung-Jui Wu, Jonny Wu. Philippine Sea plate and surrounding magmatism reveal the Antarctic-Zealandia, Pacific, and Indian mantle domain boundaries. submitted in 2023</p>
Text-fig. 10. Platanoxylon cf. haydenii, a, e, h: UF 279-34470; b, c, d, f g: UF 279-34469. a, b: Diffuse porous wood with vessels solitary and in small multiples, which are mostly tangential or oblique, diffuse and diffuse-in-aggregates axial parenchyma., TS. c–e: Scalariform perforation plates. f, g: Opposite intervessel pits, TLS. h: Two size classes of rays, TLS. Platanus sp., UF 279- 24552. i: Predominantly solitary vessels, diffuse and diffuse-in-aggregates parenchyma, growth ring boundary distinct, noded rays, TS. j: Simple perforation plates (PP), RLS. k: Body of ray with procumbent ray cells, RLS. l: Scalariform perforation plate, RLS. m: Rays of two sizes, wide rays>10-seriate, TLS. Scale bars: 200 µm in a, b, h, i, m; 100 µm in j, k: 50 µm in c, d, e, f, l. in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 10. Platanoxylon cf. haydenii, a, e, h: UF 279-34470; b, c, d, f g: UF 279-34469. a, b: Diffuse porous wood with vessels solitary and in small multiples, which are mostly tangential or oblique, diffuse and diffuse-in-aggregates axial parenchyma., TS. c–e: Scalariform perforation plates. f, g: Opposite intervessel pits, TLS. h: Two size classes of rays, TLS. Platanus sp., UF 279- 24552. i: Predominantly solitary vessels, diffuse and diffuse-in-aggregates parenchyma, growth ring boundary distinct, noded rays, TS. j: Simple perforation plates (PP), RLS. k: Body of ray with procumbent ray cells, RLS. l: Scalariform perforation plate, RLS. m: Rays of two sizes, wide rays>10-seriate, TLS. Scale bars: 200 µm in a, b, h, i, m; 100 µm in j, k: 50 µm in c, d, e, f, l.
Text-fig. 11. Acer Post Hammer species 1, UF 279-34456. a, b: Diffuse-porous wood with distinct growth rings, marked by marginal parenchyma, vessels solitary and in short radial multiples, TS. c: Crowded alternate intervessel pits, TLS. d: Simple perforation plates, helical thickenings in vessel elements, TLS. e: Rays 2–3-seriate, gum deposit in vessel element, TLS. Acer Post Hammer species 2. UF 279-34466. f: Diffuse-porous wood with distinct growth rings, marked by marginal parenchyma, vessels solitary and in short radial multiples, TS. g: Alternate intervessel pits, helical thickenings in vessel elements, TLS. h: Rays 1–4(–5)-seriate, TLS. i: Crystalliferous strand, multiseriate ray, TLS. Trochodendron beckii, UF 279-24558. j, k: Distinct growth rings, abrupt transition from earlywood to latewood, vesselless, wide rays noded at growth ring boundaries, TS. l: Rays of two distinct sizes, uniseriate and multiseriates>10-seriate, TLS. m. Scalariform intertracheary pits. RLS. Scale bars: 500 µm in j; 200 µm in a, f, k, l; 100 µm in b, h; 50 µm in c, d, e, g, i, m. in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 11. Acer Post Hammer species 1, UF 279-34456. a, b: Diffuse-porous wood with distinct growth rings, marked by marginal parenchyma, vessels solitary and in short radial multiples, TS. c: Crowded alternate intervessel pits, TLS. d: Simple perforation plates, helical thickenings in vessel elements, TLS. e: Rays 2–3-seriate, gum deposit in vessel element, TLS. Acer Post Hammer species 2. UF 279-34466. f: Diffuse-porous wood with distinct growth rings, marked by marginal parenchyma, vessels solitary and in short radial multiples, TS. g: Alternate intervessel pits, helical thickenings in vessel elements, TLS. h: Rays 1–4(–5)-seriate, TLS. i: Crystalliferous strand, multiseriate ray, TLS. Trochodendron beckii, UF 279-24558. j, k: Distinct growth rings, abrupt transition from earlywood to latewood, vesselless, wide rays noded at growth ring boundaries, TS. l: Rays of two distinct sizes, uniseriate and multiseriates>10-seriate, TLS. m. Scalariform intertracheary pits. RLS. Scale bars: 500 µm in j; 200 µm in a, f, k, l; 100 µm in b, h; 50 µm in c, d, e, g, i, m.
Text-fig. 7. Hamamelidoxylon crystalliferum sp. nov., UF 279-34464. a: Diffuse porous wood with exclusively solitary vessels, tending to be angular in outline, TS. b: Growth ring boundary, marked by radially narrowed fibers, latewood vessels narrower than earlywood vessels of the next ring, fibers thick-walled, no axial parenchyma visible, TS. c: Scalariform intervessel pits in narrow vessel (left), fibers with distinctly bordered pits, TLS. d: Scalariform perforation plate, tyloses (T) formation from marginal ray cell, TLS. e: Scalariform perforation plates with fewer than 15 bars (PP), RLS. f: Vessel-ray parenchyma pits with in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 7. Hamamelidoxylon crystalliferum sp. nov., UF 279-34464. a: Diffuse porous wood with exclusively solitary vessels, tending to be angular in outline, TS. b: Growth ring boundary, marked by radially narrowed fibers, latewood vessels narrower than earlywood vessels of the next ring, fibers thick-walled, no axial parenchyma visible, TS. c: Scalariform intervessel pits in narrow vessel (left), fibers with distinctly bordered pits, TLS. d: Scalariform perforation plate, tyloses (T) formation from marginal ray cell, TLS. e: Scalariform perforation plates with fewer than 15 bars (PP), RLS. f: Vessel-ray parenchyma pits with
Text-fig. 1. Pistacia terrazasae sp. nov., a: UF 279-85025; b–i: UF 279-24545. a: Ring-porous wood with widely spaced solitary earlywood vessels; latewood vessels in radial multiples of 4 or more and in clusters, TS. b: Growth ring boundary, fiber walls thin to thick, TS. c: Simple perforation plates, alternate intervessel pits, helical thickenings in vessels, TLS. d: Multiseriate rays to 4-seriate, tyloses in vessels, helical thickenings throughout body of vessel element, and alternate intervessel pitting, TLS. e: Vessel-ray parenchyma pitting with reduced borders, oval in outline, RLS. f: Marginal row of upright cells, one inflated and crystalliferous, procumbent body cells, RLS. g: Multiseriate rays mostly 3-seriate, occasionally 4-seriate, uniseriate rays usually <10 cells tall, TLS. h: Ray with enlarged crystalliferous marginal cell, to left of C, TLS. i: Ray with canal, TLS. Scale bars: 200 µm in a, g; 100 µm in b, d, h; 50 µm in c, i; 20 µm in e, f. in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 1. Pistacia terrazasae sp. nov., a: UF 279-85025; b–i: UF 279-24545. a: Ring-porous wood with widely spaced solitary earlywood vessels; latewood vessels in radial multiples of 4 or more and in clusters, TS. b: Growth ring boundary, fiber walls thin to thick, TS. c: Simple perforation plates, alternate intervessel pits, helical thickenings in vessels, TLS. d: Multiseriate rays to 4-seriate, tyloses in vessels, helical thickenings throughout body of vessel element, and alternate intervessel pitting, TLS. e: Vessel-ray parenchyma pitting with reduced borders, oval in outline, RLS. f: Marginal row of upright cells, one inflated and crystalliferous, procumbent body cells, RLS. g: Multiseriate rays mostly 3-seriate, occasionally 4-seriate, uniseriate rays usually <10 cells tall, TLS. h: Ray with enlarged crystalliferous marginal cell, to left of C, TLS. i: Ray with canal, TLS. Scale bars: 200 µm in a, g; 100 µm in b, d, h; 50 µm in c, i; 20 µm in e, f.
Text-fig. 4. Fagus dodgei sp. nov., a, b, d–h: UF 279-34468; c: UF 279-30165. a: Wood diffuse-porous to semi-ring-porous with distinct latewood zone with narrower vessels; vessels solitary and in short multiples; diffuse, diffuse-in-aggregates axial parenchyma visible in latewood, TS. b: Growth ring boundary, TS. c: Opposite intervessel pitting, TLS. d: Scalariform perforation plate with fewer than 10 bars, RLS. e: Simple perforation plates (PP), RLS. f: Vessel-ray parenchyma pitting with reduced borders and frequently oval in outline, RLS. g: Rays 1–4(–5)-seriate with variable numbers of marginal rows, TLS. h: Rays of two distinct sizes, widest rays>10-seriate, TLS. Scale bars: 200 µm in a, h; 100 µm in b, e, g; 50 µm in d, f. in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 4. Fagus dodgei sp. nov., a, b, d–h: UF 279-34468; c: UF 279-30165. a: Wood diffuse-porous to semi-ring-porous with distinct latewood zone with narrower vessels; vessels solitary and in short multiples; diffuse, diffuse-in-aggregates axial parenchyma visible in latewood, TS. b: Growth ring boundary, TS. c: Opposite intervessel pitting, TLS. d: Scalariform perforation plate with fewer than 10 bars, RLS. e: Simple perforation plates (PP), RLS. f: Vessel-ray parenchyma pitting with reduced borders and frequently oval in outline, RLS. g: Rays 1–4(–5)-seriate with variable numbers of marginal rows, TLS. h: Rays of two distinct sizes, widest rays>10-seriate, TLS. Scale bars: 200 µm in a, h; 100 µm in b, e, g; 50 µm in d, f.
Text-fig. 2. Celtis popsii sp. nov., UF 279-34460. a: Growth ring with earlywood of multiple rows of vessels solitary and in radial multiples; latewood vessels in wavy tangential bands, TS. b: Growth ring boundary, latewood vessels in multiples with axial parenchyma confluent, TS. c: Simple perforation plates, alternate intervessel pits, polygonal in outline, TLS. d: Vessel-ray parenchyma pits to right of VRP, oval in outline, with slightly reduced borders, RLS. e: Rays tending to two sizes, some multiseriate rays with distinct sheath cells, multiseriate rays usually with 1 marginal row of square to upright cells, occasionally with 4 or more; uniseriate rays less than 10 cells high, TLS. f: Detail of multiseriate ray with distinct sheath cells, vessel element end walls, TLS. Scale bars: 200 µm in a, e; 100 µm in b; 50 µm in c, f; 20 µm in d. in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 2. Celtis popsii sp. nov., UF 279-34460. a: Growth ring with earlywood of multiple rows of vessels solitary and in radial multiples; latewood vessels in wavy tangential bands, TS. b: Growth ring boundary, latewood vessels in multiples with axial parenchyma confluent, TS. c: Simple perforation plates, alternate intervessel pits, polygonal in outline, TLS. d: Vessel-ray parenchyma pits to right of VRP, oval in outline, with slightly reduced borders, RLS. e: Rays tending to two sizes, some multiseriate rays with distinct sheath cells, multiseriate rays usually with 1 marginal row of square to upright cells, occasionally with 4 or more; uniseriate rays less than 10 cells high, TLS. f: Detail of multiseriate ray with distinct sheath cells, vessel element end walls, TLS. Scale bars: 200 µm in a, e; 100 µm in b; 50 µm in c, f; 20 µm in d.
→ Fig. 9. Antiarchan fish Bothriolepis leptocheira jeremejevi (Rohon, 1900), Sosnogorsk locality, Sosnogorsk Formation, lowermost Famennian, anterior median dorsal (A–G) and posterior median dorsal (H–M) plates of the trunk armour. A. IG KSC 155/5 in dorsal (A1) and visceral (A2) views. B. IG KSC 155/108 in dorsal (B1) and visceral (B2) views. C. IG KSC 155/97 in dorsal view. D. IG KSC 155/113 in dorsal (D1) and visceral (D2) views. E. IG KSC 155/140 in dorsal (E1) and visceral (E2) views. F. Impression of the dorsal surface of IG KSC 155/42. G. IG KSC 155/44 in dorsal view. H. Fragment of IG KSC 155/7 in dorsal view. I. IG KSC 155/1 in dorsal (I1) and visceral (I2) views. J. IG KSC 155/71 in dorsal view. K. Slightly deformed IG KSC 155/70 in dorsal (K1) and visceral (K2) views. L. IG KSC 155/158 in dorsal view. M. IG KSC 155/157 in dorsal (M1) and visceral (M2) views. Abbreviations: ADL, anterior dorso-lateral plate; alr, postlevator thickening; AMD, anterior median dorsal plate; cf.ADL, cf.AMD, and cf.MxL, area overlapping ADL, AMD or MxL respectively; cr.tp, posterior transversal internal crest; dlg1 and dlg2, anterior and posterior oblique dorsal sensory line groove; dma, tergal angle; dmr, dorsal median ridge; f.retr, levator fossa; grm, ventral median groove; l, lateral corner; mvr, median ventral ridge; MxL, mixilateral plate; npn, postnuchal notch; oa.ADL, oa.MxL and oa.PMD, area overlapped by ADL, MxL or PMD respectively; pa, posterior corner; pma, posterior marginal area; PMD, posterior median dorsal plate; pr.p, posterior process of AMD; pr.pl, external postlevator process; prv2, posterior ventral process of dorsal wall of trunk armour; pt1 and pt2, anterior and posterior ventral pit; pua, posterior unornamented area of PMD; rf, "round fossula"; sna, supranuchal area; tb, ventral tuberosity. in A new assessment of the Late Devonian antiarchan fish Bothriolepis leptocheira from South Timan (Russia) and the biotic crisis near the Frasnian-Famennian boundary
→ Fig. 9. Antiarchan fish Bothriolepis leptocheira jeremejevi (Rohon, 1900), Sosnogorsk locality, Sosnogorsk Formation, lowermost Famennian, anterior median dorsal (A–G) and posterior median dorsal (H–M) plates of the trunk armour. A. IG KSC 155/5 in dorsal (A1) and visceral (A2) views. B. IG KSC 155/108 in dorsal (B1) and visceral (B2) views. C. IG KSC 155/97 in dorsal view. D. IG KSC 155/113 in dorsal (D1) and visceral (D2) views. E. IG KSC 155/140 in dorsal (E1) and visceral (E2) views. F. Impression of the dorsal surface of IG KSC 155/42. G. IG KSC 155/44 in dorsal view. H. Fragment of IG KSC 155/7 in dorsal view. I. IG KSC 155/1 in dorsal (I1) and visceral (I2) views. J. IG KSC 155/71 in dorsal view. K. Slightly deformed IG KSC 155/70 in dorsal (K1) and visceral (K2) views. L. IG KSC 155/158 in dorsal view. M. IG KSC 155/157 in dorsal (M1) and visceral (M2) views. Abbreviations: ADL, anterior dorso-lateral plate; alr, postlevator thickening; AMD, anterior median dorsal plate; cf.ADL, cf.AMD, and cf.MxL, area overlapping ADL, AMD or MxL respectively; cr.tp, posterior transversal internal crest; dlg1 and dlg2, anterior and posterior oblique dorsal sensory line groove; dma, tergal angle; dmr, dorsal median ridge; f.retr, levator fossa; grm, ventral median groove; l, lateral corner; mvr, median ventral ridge; MxL, mixilateral plate; npn, postnuchal notch; oa.ADL, oa.MxL and oa.PMD, area overlapped by ADL, MxL or PMD respectively; pa, posterior corner; pma, posterior marginal area; PMD, posterior median dorsal plate; pr.p, posterior process of AMD; pr.pl, external postlevator process; prv2, posterior ventral process of dorsal wall of trunk armour; pt1 and pt2, anterior and posterior ventral pit; pua, posterior unornamented area of PMD; rf, "round fossula"; sna, supranuchal area; tb, ventral tuberosity.
santis19/paper-plate-contraction-patagonia: Plate Boundaries Model Version 1.2
<p>Supplementary material for paper <em>Transient plate contraction between two simultaneous slab windows: Insights from Paleogene tectonics of the Patagonian Andes</em>, including new plate boundaries model.</p>
Data for "A snapshot of the long term evolution of a distributed tectonic plate boundary" submitted to Science Advances
<p>This compressed folder contains data presented in Figures of the following paper: "<strong>A snapshot of the long term evolution of a distributed tectonic plate boundary</strong>" by M. Dalaison, R. Jolivet, L. Le Pourhiet; submitted to <em>Science Advances</em> in February 2023</p> <p>Please open the README.txt file for details about the folder's content</p>
Impact hammer test of an Aluminium 6082 T6 plate, 260 x 246 x 1.5 mm, free boundary conditions
<p>Plate data</p> <p>------------</p> <p>E = 70 GPa</p> <p>ν = 0.33</p> <p>ρ = 2700 kg/m^3</p> <p>h = 1.50 mm (±0.01mm)</p> <p>width = 246 mm</p> <p>length = 260 mm</p> <p> </p> <p>Experiment description</p> <p>-----------------------------</p> <p>- a Cartesian coordinate system (XYZ) is defined in one of the corners of the plate, with XY laying on the mid-plane of the plate;</p> <p>- the X axis is aligned with the length direction;</p> <p>- the Y axis is aligned with the width direction;</p> <p>- the free boundary conditions are approximated experimentally by means of soft cotton wires, and the plate is tested while hanging on the cotton wires that are fixed at two corners, by means of adhesive tapes;</p> <p>- a mesh of 5 by 5 points is defined on the plate, with the following coordinates (in meters):</p> <pre><code class="language-python">1, [0., 0.] 2, [0.065, 0.] 3, [0.13, 0.] 4, [0.195, 0.] 5, [0.26, 0.] 6, [0., 0.0615] 7, [0.065, 0.0615] 8, [0.13, 0.0615] 9, [0.195, 0.0615] 10, [0.26, 0.0615] 11, [0., 0.123] 12, [0.065, 0.123] 13, [0.13, 0.123] 14, [0.195, 0.123] 15, [0.26, 0.123] 16, [0., 0.1845] 17, [0.065, 0.1845] 18, [0.13, 0.1845] 19, [0.195, 0.1845] 20, [0.26, 0.1845] 21, [0., 0.246] 22, [0.065, 0.246] 23, [0.13, 0.246] 24, [0.195, 0.246] 25, [0.26, 0.246]</code></pre> <p>- the accelerometer is fixed at point 5;</p> <p>- the time-response to the hammer impact is obtained for each point by hitting with the impact hammer at each point;</p> <p>- three time-response data points are obtained at each point;</p> <p>- for all measurements a total of 2^15 = 32768 time samples are obtained, corresponding to a time interval of 0 <= t <= 3.840 s, and a minimum sampling rate of 8000 Hz. </p> <p> </p> <p>Details about the hardware</p> <p>----------------------------------</p> <p>1) Data Acquisition Module NI 9234</p> <p>With four input channels simultaneously acquire at rates up to 51.2 kS/s (kilosamples per second). The operating temperature limits are from -40 °C to 70 °C, maximum of 5 g vibration, and maximum of 50 g shock.</p> <p>2) Impact hammer with load cell 086C02</p> <p>The first channel corresponds to the impact hammer load cell measurements, in Newtons [N]. The hardware sensitivity (+-15%) is 50 mV/lbf or 11.2 mV/N.</p> <p>3) Unidirectional Accelerometer 352A24</p> <p>The second channel corresponds to the accelerometer measurements, in gravity units [g], being 1 gravity unit = 9.81 m/s^2. The hardware sensitivity (+-10%) is 100 mV/g or 10.2 mV/(m/s^2).</p> <p> </p> <p> </p> <p>Reading the experimental data</p> <p>--------------------------------------</p> <p>I use the https://nptdms.readthedocs.io/en/stable/quickstart.html module to read the experimental data saved with the "*tdms" extension. The following example illustrates how to read the data at all the points:</p> <pre><code class="language-python">from nptdms import TdmsFile # reading from the experimental results # - the hammer impact force in [N] as a function of time from df.iloc[:, 0] # - the accelerations in [g] as a function of time from df.iloc[:, 1] times = {} hammer_impacts = {} accelerometer = {} for point in usedpoints: tdms = TdmsFile('WaveForms Point%02d.tdms' % point) df = tdms.as_dataframe() df.index = df.index/df.shape[0] * tmax times[point] = df.index hammer_impacts[point] = df.iloc[:, 0] accelerometer[point] = df.iloc[:, 1]</code></pre> <p> </p> <p> </p> <p>Plate model</p> <p>----------------</p> <p>In file "plate_model.py" you can find a validated vibration model of the plate, based on the Python package:</p> <blockquote> <p>Castro, S.G.P. Supporting code for Stability and Analysis of Structures II, Department of Aerospace Structures and Materials, Delft University of Technology, 2023. <a href="https://doi.org/10.5281/zenodo.2583004">DOI: 10.5281/zenodo.2583004</a>.</p> </blockquote>
Dataset for High-resolution mantle flow models reveal importance of plate boundary geometry and slab pull forces on generating tectonic plate motions
<p>This repository contains the plugin and dataset used to setup models in the manuscript: "High-resolution mantle flow models reveal importance of plate boundary geometry and slab pull forces on generating tectonic plate motions".</p> <p>The material model plugin used in our models is in the "plugins" folder. The "models" folder contains the reference input parameter file described in the paper. All other model configurations shown in the paper can be obtained by modifying this parameter file. The input files used to set up the models are in the respective folder. Additionally, the Jupyter notebook used to compute residuals of our models is provided in the "scripts" folder.</p> <p> </p>
GNSS stations along the Himalayan plate boundary
<p><span>GNSS stations from several sources are considered in the present study surrounding the Himalayan plate boundary. The horizontal geodetic velocities in ITRF 2014 are transformed with respect</span><span> </span><span>to the fixed India reference frame.</span></p>
Data for Bernard et al., "Melt-assisted deformation in the lower crust of an active plate boundary, Baja California" (2022)
<p>Archived LA-ICP-MS and EBSD data files for the Bernard et al. manuscript entitled, "Melt-assisted deformation in the lower crust of an active plate boundary, Baja California" (LITHOS, accepted 2022). EBSD data were acquired on an Oxford Instruments Symmetry EBSD detector on a FEI Apreo LoVac field emission gun scanning electron microscope at the University of California San Diego (UCSD) using a working distance between 26 to 28 mm and voltage of 20 kV. Trace elements were collected from polished thin sections using a Thermo Fisher Scientific iCAP Qc Inductively Coupled Plasma Mass Spectrometry (ICP-MS) with New Wave Research UP213 Laser Ablation system at UCSD. </p>
Experimental data for "Cohesional slip on a plate subduction boundary during a large earthquake"
<p>This deposit contains raw data used for the study reported in the paper "Cohesional slip on a plate subduction boundary during a large earthquake".</p>
Input files and movie visualizations for convection models discussed in Becker and Fuchs, "Generation of evolving plate boundaries and toroidal flow from visco-plastic damage-rheology mantle convection and continents", manuscript revised for G-Cubed
<p>These input files are for the CitcomS software as available on github.com/geodynamics/citcoms and used in the version under commit 2bda530. They can be used to recreate the models discussed in Becker and Fuchs (revised manuscript submitted to G-Cubed, 11/2023), with model codes discussed and listed in Table 1 of the preprint as provided here. We also provide selected animations of the time dependence of model output, referenced to the same model names.</p>
Plate boundary deformation at the Azores triple junction determined from continuous GPS geodetic measurements, 2000-2017
<p>Ground deformation in the Azores, at the triple junction between the Eurasian, Nubian, and North American plates, has been mapped with continuous GPS (Global Positioning System) geodetic measurements to improve tectonic motion estimates and for understanding volcanic unrest. We compute daily GPS positions, spanning almost 17 years (2000-2017), from 18 continuous GPS stations. The GPS time-series are analyzed by searching for discontinuities and periodic functions. Results show that Flores and Graciosa islands have displacements close to predicted North American and Eurasian plate motions, respectively, while São Miguel, Terceira, São Jorge, Faial and Pico islands have displacements in between predicted Eurasian and Nubian plate motions. The Eurasian-Nubian plate boundary in the Azores behaves as a diffuse ultra-slow oblique spreading center with focused deformation found in the Central Group and São Miguel Island. The velocity field is modeled by approximating segments of the Eurasian-Nubian plate boundary with vertical dislocations with right-lateral motion and opening below a locking depth. Best fitting models have deep motion in the range of 2.4-2.7 mm/yr directed N(76.5-78.8<sup>o</sup>)E. Such displacement accounts for more than half predicted Eurasian-Nubian relative plate motion. The modeling results suggest that the locking depth in the Central Group is about 17 km while in São Miguel is about 2 km. We found transient deformation at Fogo volcano, São Miguel Island, due to unrest activity mainly during 2003–2006 and 2011–2012, and local continuous subsidence in Terceira Island, attributed to a deflation source centered on the island.</p>
Earth's tectonic and plate boundary evolution over 1.8 billion years
<p>This is a new full-plate tectonic reconstruction from 1.8 Ga to the present, based on this paper: </p> <p><span>Cao, X., Collins, A.S., Pisarevsky, S., Flament, N., Li, S., Hasterok, D. and Müller, R.D., 2024. Earth’s tectonic and plate boundary evolution over 1.8 billion years. </span><strong><em><span>Geoscience Frontiers</span></em></strong><span>, p.101922.</span></p> <p> </p> <p>Change Log:</p> <p>v2.4: Fixed topology issue at 410 Ma; adjusted the appearance time of two small continent polygons in "shapes_continents.gpmlz".<br>v2.3: Fixed a hole east of Kamchatka in "shapes_continents.gpmlz".<br>v2.2: Merged the 1000-410 Ma boundary files into a single file.<br>v2.1: Added "static_polygons.gpmlz"; fixed holes in northern Europe and west of Kamchatka in "shapes_continents.gpmlz".<br>v2: Fixed some subduction zones with no convergence; added sample site positions to "Paleomagnetic_poles.gpml".</p>
Data from: Newly recognized Famennian lungfishes from East Greenland reveal tooth plate diversity and blur the Devonian–Carboniferous boundary
Three specimens of lungfishes from the late Famennian of East Greenland are described. One forms the holotype of a new genus and species, Celsiodon ahlberg gen. et sp. nov., which, in cladistic analyses, is placed close to the Carboniferous genus Ctenodus. The analyses reveal some Late Devonian lungfishes clustering with Early Carboniferous taxa, suggesting that Late Devonian lungfishes included more crownward taxa than previously appreciated, and that the Devonian-Carboniferous boundary was more fluid for lungfish taxa than supposed. Further study of other specimens shows a range of tooth plate morphologies and tooth crown morphologies, suggesting that the Late Devonian lungfishes were even more diverse and occupied a wider range of feeding strategies than previously suspected.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.