From holger.steffen at lm.se Wed Aug 7 18:09:28 2019 From: holger.steffen at lm.se (Holger Steffen) Date: Wed, 7 Aug 2019 10:09:28 +0200 Subject: [Geodynamics] Glacial Isostatic Adjustment training school: virtual participation opportunity Message-ID: Dear all, Preparations for our?forthcoming training school on glacial isostatic adjustment (GIA)?are nearly complete and we are looking forward to welcoming participants to Sweden in a few weeks' time. The?training school?was significantly over-subscribed, so we have made it possible for people to follow the?lectures remotely, both in real time, or shortly afterwards if time zones make this difficult. You will be able to hear the lecturers and view the slides.?The lectures will cover a wide range of subjects relating to GIA.?A few notes: - the training school will run between Monday 26th and Friday 30th August 2019.?A preliminary agenda?has been posted on the POLENET website (https://protect-au.mimecast.com/s/aSjbCk8vAZtRVz3Oc2c4yH?domain=polenet.org). The first virtual participation?(VP) session will be the lecture at 11:15 on the Monday morning, but check back for last minute revisions to timings. Times refer to the?local time in Sweden. - information about how to join via the VP option?will be posted on the POLENET website approximately one week before the start of the training school - a?separate link will be?assigned?for each lecture. For those who are?unable to watch in real time, we anticipate being able to upload a recording of each?lecture within a few hours.?If you can join us in real time then you will have the option to post questions to the lecturers?via?the VP portal - note that?some sessions?involve computer exercises. We will endeavour to provide as much information as possible to allow you to?have a go at?these exercises, but will not be able to provide?support as you work through them - if you would like to receive updates, and instructions for how to access the training school preparation material, please send an email to polenet.school at gmail.com and ask?to be added to our participant?email list. This is not a requirement;?you can also join on the day or view the lectures at some point in the future ?by following the instructions that will appear?on the POLENET?page The training school is generously sponsored by NSF (via the POLENET project), SCAR (via the SERCE research program), EGU, IACS, and DTU Space. We are also grateful to the lecturers who?will?give up their time to attend. Any questions should be directed to polenet.school at gmail.com Look out for updates on Twitter: #GIAschool2019 ! Best wishes, Pippa, on behalf of the organising committee ------------------------------------------------------ Dr. Pippa Whitehouse Associate?Professor Department of Geography Durham University DH1 3LE, United Kingdom Phone: +44 (0)191 334 1877 Office: S210 From brune at gfz-potsdam.de Mon Aug 26 17:33:37 2019 From: brune at gfz-potsdam.de (Sascha Brune) Date: Mon, 26 Aug 2019 09:33:37 +0200 Subject: [Geodynamics] IGC 2020 in Delhi, India | Session "Advances in the Extensional Tectonics of Continental Margins" Message-ID: <94FCBB15-A302-431C-B0E3-7A274E6972FB@gfz-potsdam.de> Dear colleagues, The 36th International Geological Congress (IGC) is taking place from 2nd to 8th of March 2020 in Delhi, India. The 287 sessions/symposia of the scientific program cover all disciplines of geological sciences https://protect-au.mimecast.com/s/A_A3CzvOWKiZD8mxF4XwFe?domain=36igc.org . The IGC is a global event that takes place every 4 years, the most recent ones have been held in Capetown, South Africa (2016), and Brisbane, Australia (2012). I take this opportunity to invite you to submit an abstract to our session/symposium: Advances in the Extensional Tectonics of Continental Margins (5.1) Session description: Rifted margin segments feature a large structural variety in terms of general architecture, distribution of surface strain, crustal and lithospheric thinning in time and space, as well as the amount of sedimentation, magmatism and serpentinisation. It is clear that rift evolution is governed by the interplay of rheological configuration, tectonic inheritance, melting tectono-magmatic interaction, rift velocity, extension obliquity as well as surface processes and climate interaction, but the relative importance of these controls differs between individual margins. This symposium will address new data sets and methodologies that advance our understanding about the structure and dynamics of rift margin formation. Abstracts Abstracts can be submitted online at https://protect-au.mimecast.com/s/-vnSCANZvPiX0r1nf8xxJq?domain=36igc.org and are free of charge until 15th September 2019. Afterwards the abstract fee will be 20 USD with a final submission deadline of 15th October 2019. Travel support This year?s IGC involves GeoHost, a support program designed to enable 1000 young or financially disadvantaged geoscientists to attend the IGC. Find out if you are eligible here: https://protect-au.mimecast.com/s/4qGsCBNZwLirqPlMSNx7rg?domain=36igc.org . Registration The Super Early Bird registration ends already at the end of this week (31st of August). For the Early Bird you still have a bit of time (30th of November 2019). More details here: https://protect-au.mimecast.com/s/1slQCD1jy9tzpjOnIZ93Hx?domain=36igc.org . We look forward to seeing you in Delhi. Kind regards, Sascha Brune (GFZ Potsdam, Germany) Marta Perez-Gussinye (University of Bremen, Germany), Zhen Sun (South China Sea Institute of Oceanology, Guangzhou, China), Gianreto Manatschal (University of Strasbourg, France) Anne Briais (University of Toulouse, France) Sascha Brune Geodynamic Modelling Section GFZ-Potsdam, Germany T +49 (0) 331 288 1928 M brune at gfz-potsdam.de W https://protect-au.mimecast.com/s/RkjlCE8kz9t2y16gSZElvp?domain=gfz-potsdam.de W https://protect-au.mimecast.com/s/szmTCJyp0qhvOpQ1fpd_xI?domain=researchgate.net W https://protect-au.mimecast.com/s/ameBCK1qJZtNK8rBune8Wi?domain=scholar.google.de -------------- next part -------------- An HTML attachment was scrubbed... URL: From john.cannon at sydney.edu.au Sat Aug 31 01:11:28 2019 From: john.cannon at sydney.edu.au (John Cannon) Date: Fri, 30 Aug 2019 15:11:28 +0000 Subject: [Geodynamics] GPlates 2.2 released Message-ID: Hi all, The GPlates development team is pleased to announce the release of GPlates 2.2. You can download GPlates 2.2, and GPlates-compatible data: https://protect-au.mimecast.com/s/DFkMCwVLQmijRRl9TVli_2?domain=gplates.org A few points to note regarding this release:- The Sample Data includes the Matthews et al. (2016) model, which has been updated to include the corrections to the Pacific rotations prior to 83 Ma according to Torsvik et al. (2019). Please update your local datasets. Matthews, K. J., Maloney, K. T., Zahirovic, S., Williams, S. E., Seton, M., and M?ller, R. D., 2016, Global plate boundary evolution and kinematics since the late Paleozoic: Global and Planetary Change, DOI: 10.1016/j.gloplacha.2016.10.002 Torsvik, T.H., Steinberger, B., Shephard, G.E., Doubrovine, P.V., Gaina, C., Domeier, M., Conrad, C.P. and Sager, W.W., 2019. Pacific-Panthalassic reconstructions: Overview, errata and the way forward. Geochemistry, Geophysics, Geosystems, DOI:10.1029/2019GC008402 There is now a 64-bit version of GPlates for Windows. * The 64-bit Windows installer works on 64-bit versions of Windows 7/8/8.1/10. * The 32-bit Windows installer works on 32-bit and 64-bit versions of Windows 7/8/8.1/10. Currently there are some issues with 3D scalar fields on macOS Mojave (10.14) and above: * This happens on some Macs with AMD graphics (specifically we've noticed AMD Radeon Pro 460). * 3D scalar fields render incorrectly and then crash in the graphics driver. * Note that disabling automatic GPU switching does not help, since this always uses the discrete graphics (eg, AMD) and not the integrated graphics (eg, Intel HD). Also, the first time you open GPlates on macOS 10.12 Sierra (and above) you will need to Control-click (or right click) and select Open. What's new in version 2.2:- * Deformation: o Option to generate 'exponential' stretching profiles across rifts (instead of default constant stretching). + Activated by adding 'rift' left/right plate IDs to any deforming network. + Optionally specify three control parameters: - One parameter controls the exponential constant. - The other two parameters control how closely to approximate exponential curve (with better approximations running slower). o Calculate, visualize and export strain rate "style": + A unit-less quantity defined in Kreemer et al. 2014, categorizing extension, contraction and strike-slip. o Support deforming networks in Net Rotation export (in addition to rigid plates). o Option to generate deforming mesh points inside interior rigid blocks in deforming networks. * Topologies: o Updated CitcomS topology export: + Option to export all (plate/network/slab) polygons and all (plate/network/slab) boundary segments. + Fixed missing plates (that were not of type TopologicalClosedPlateBoundary; eg, OceanicCrust). o Updated General topology export: + Option to export boundary segments. - Including separate subduction, subduction left/right, ridge/transform files (similar to CitcomS topology export). + Boundary segments are not duplicated. + Exports sub-segments of a topological line (when topological *line* is a segment of a topological boundary). - Ensures correct plate IDs (ie, uses sub-segment plate IDs, not topological line plate ID). o Robust determination of velocities along topological boundaries (of rigid plates and deforming networks): + Notably in the presence of deforming *lines* (eg, topological lines made from independently moving points). + Results in robust strain rates in topological networks (especially at intersecting boundary corners). * Projects and recent sessions: o Save time slider range to project/session. + Also extend default time range to 410Ma (from 200Ma) for rotation model in sample data. * File formats: o Can load/save GeoPackage geometry files. o All non-GPML geometry formats (Shapefile, etc) no longer force a feature to have all mapped properties: + Avoids adding a property to a feature that it didn't have (eg, conjugate plate ID). o Support UTF8 when loading (and saving) PLATES4 line and rotation formats. + Useful when rotation comments contain non-ASCII characters. * Rendering: o Can show/hide rasters, 3D scalar fields and scalar coverages. + In "View > Geometry Visibility" menu. o Can show/hide topological lines, polygons and networks (in same menu). + Can also show/hide topological 'sections' (those geometries contributing to topological boundaries/interiors). - So only see final continuously-closed topological boundaries. + GPlates now hides these dangling pieces by default (advanced users can change the default though). o Velocity layers can calculate/visualize velocities on *domains* that are topology layers (as opposed to *surfaces*). + At the *vertices* of topological lines, polygons and networks. o Render clicked (white) geometries on top of non-clicked (grey) geometries (belonging to the same feature). + Useful when the feature's geometries overlap. * GPlates Geological Information Model (GPGIM): o Added new GPGIM feature type 'DeformingRegionEdge' that is edge of a deforming region but not also a plate boundary. o Allow MeshNode feature to contain a point geometry (previously only allowed a multi-point). + Enables single point to automatically create a velocity layer (because only MeshNode features do this). o Added properties for rift exponential stretching: + 'riftLeftPlate' and 'riftRightPlate' - conjugate rigid plates bounding a rift topological network. + 'riftExponentialStretchingConstant' - controls exponential variation across rift stretching profile. + 'riftEdgeLengthThresholdDegrees' and 'riftStrainRateResolutionLog10' - control approximation to true exponential curve. o Removed topological network properties 'networkMaxEdge' and 'networkShapeFactor' (no longer used). * Geometry tests: o Assigning plate IDs is much faster (especially dense geometries like coastlines). o Robust polyline intersection testing, and significantly faster. o Distances to polygons (from another geometry) now take into account any interior rings of the polygon. * Bug fixes: o Fixed hang on start up on some Mac systems (where network interface appears active but network is unavailable). o Fixed time-dependent raster import (and 3D scalar field import) not accepting filenames with uppercase extensions. o Fixed crash triggered when exporting total strains. o Fixed crash when exiting GPlates on some Ubuntu versions (due to freeing same memory twice). o Fixed crash when saving a rotation feature with a 'gml:name' or 'gml:description' property to a PLATES4 rotation file. o Fix crash loading a GPML file containing a feature property that cannot be interpreted using any property defined in the GPGIM. * Build: o Support Visual Studio 2015/2017 (GDAL 2.3 uses C++11 which requires VS2015), and update Windows build docs accordingly. o Fixed incorrect 90 degree rotation of rasters with inbuilt projections (eg, Lambert Conformal Conic) when GPlates compiled with GDAL 3.0. o Upgraded support to new Proj6 API (also support deprecated Proj4 API). o Added SQLite3 dependency library (due to adding support for GeoPackage vector format). o Support Boost 1.66 (added x32/x64 architecture tags) and Boost 1.67 (added Python version suffix 'python27'). o Fixed CMake error finding GMP library on Windows (recent CGAL versions already link to GMP, so GPlates doesn't need to). o Work around internal compiler error (gcc 5.4) on Ubuntu Xenial (16.04). o No longer combine '-ansi' (equivalent to '-std=c++98') and '-std=c++11' flags (first noticed on gcc 9.1). o No longer turn warnings into errors: + There are lots of warnings generated by dependency libraries (that we can't easily fix), and by new compilers. ...for the complete list of changes please see the CHANGELOG file in the GPlates source-code releases. Documentation including the user manual, tutorials and the data manual may be found on the User Documentation page of the GPlates website: https://protect-au.mimecast.com/s/JNq9CxnMRvtlQQEwFvN8WO?domain=gplates.org Information about this release may be found on the News page of the GPlates website: https://protect-au.mimecast.com/s/-q5OCyoNVrc1yyOkHQef_9?domain=gplates.org Information about the sample data in this release may be found on the Earthbyte website: https://protect-au.mimecast.com/s/1sD_CzvOWKi1mmW9HKWnRH?domain=earthbyte.org This release consists of the following files: * 'GPlates-2.2.0-Darwin-x86_64.dmg' - a MacOS X installer which contains a 64-bit GPlates application bundle for Intel systems running MacOS X Snow Leopard (10.6) or above and the sample data noted above, * 'GPlates-2.2.0-win32.msi' and 'GPlates-2.2.0-win64.msi' - ".MSI" Windows installers which contain 32-bit and 64-bit binary GPlates executables and the sample data noted above, * 'gplates-2.2.0-win32.zip' and 'gplates-2.2.0-win64.zip' - zip files which contain 32-bit and 64-bit GPlates Windows executables and their dependency files, (and the sample data noted above) for users who wish to use GPlates without installing it, * 'gplates-2.2.0-winsrc.zip' - a source zip file for Windows, * 'gplates-2.2.0-unixsrc.tar.bz2' - a source tarball for Linux, * packages for Ubuntu (32-bit Intel and 64-bit AMD) 16.04 LTS (xenial) 18.04 LTS (bionic) and 19.04 (disco) ...refer to the "GPlates Ubuntu Packages" section below for more information, * 'gplates-2.2-sample-data.zip' - sample data for Linux users (note: this data is included in the MacOS X and Windows installers) The GPlates source code and binaries are distributed under the terms of the GNU General Public License (GPL). GPlates 2.2 compiles and runs on Linux, MacOS X 10.6 (and above), Windows 7/8/8.1/10. The 64-bit Intel MacOS X installer works on Intel systems running MacOS X version 10.6 (Snow Leopard) or above. The 32-bit Windows installer works on 32-bit and 64-bit versions of Windows 7/8/8.1/10. The 64-bit Windows installer works on 64-bit versions of Windows 7/8/8.1/10. GPlates is developed at the University of Sydney, the California Institute of Technology, the Geological Survey of Norway and the University of Oslo. For more information on GPlates, visit the GPlates website: https://protect-au.mimecast.com/s/ek1kCANZvPiQ11p2iQ1b4b?domain=gplates.org Thanks for reading, and enjoy GPlates 2.2 ! -- John Cannon, Lead GPlates Developer - https://protect-au.mimecast.com/s/egzrCBNZwLiGllWBH1g14x?domain=gplates.org -------------- next part -------------- An HTML attachment was scrubbed... URL: