[Qgis-user] Tectonic plate boundaries

[Fielding, Eric J (US 329A)]

Hi John,

Here is a GitHub site with plate boundaries in several GIS formats, including Shapefile and GeoJSON. 
https://github.com/fraxen/tectonicplates

These should work with QGIS. This is from the Bird (2003) paper that is a widely used source of tectonic plate boundaries.

++Eric
-- 
Eric Fielding

Eric.J.Fielding at jpl.nasa.gov
http://science.jpl.nasa.gov/people/Fielding/
Twitter: @EricFielding
Jet Propulsion Laboratory
Caltech
4800 Oak Grove Drive                
Pasadena, CA   91109
USA


 

    Date: Sat, 13 Aug 2022 14:53:54 -0700
    From: chris hermansen <clhermansen at gmail.com>
    To: John Moyle <drjmoyle at gmail.com>
    Cc: qgis-user <qgis-user at lists.osgeo.org>
    Subject: Re: [Qgis-user] Tectonic plate boundaries
    Message-ID:
    	<CACc2_69tDWyP6vyShhiSjNdy=fUH6AtwA8B5zX1Emux9MbVjRQ at mail.gmail.com>
    Content-Type: text/plain; charset="utf-8"

    John and list,

    On Sat, Aug 13, 2022, 09:38 John Moyle via Qgis-user <
    qgis-user at lists.osgeo.org> wrote:

    > Hi
    > New to QGIS. I want to plot Victorian submarine telegraph cable
    > interruptions under the Atlantic.  I know, what an Anorak!!
    > I have found a brilliant rasterfile of the seabed from GEBCO to use as a
    > base layer. I have also collected all the data of cable failure, submarine
    > earthquakes and volcanoes and am ready to make vector layers of all the
    > data.
    > But what I can't find is a shapefile of the tectonic plates boundaries,
    > just the boundary lines with no shading or text.
    >

    I believe you have a basic misunderstanding of the nature of data within a
    GIS.

    Generally the way QGIS (and most GIS) works is they "take" only data such
    as points lines and polygons and then the user develops styling on those to
    create the desire cartographic effect.

    It would be most unusual to find shading or text in a shapefile.

    Test in a shapefile is an attribute of some geometric feature. So line 377
    might have an attribute that is "Mid Atlantic Ridge".

    QGIS provides the ability to print the text attributes as labels, which can
    be styled in many useful ways for visualization purposes.


    Everything I do find is rejected by QGIS as not being in a suitable format.
    > Help please!
    > John
    >
    > Dr John Moyle
    > MB, BS, MSc, PhD, CEng, MInstMC, FRCA, FRHistS
    > Chartered Engineer
    > Physician & Anaesthetist (Retired)
    > Historian (Telegraphy & Medical Technology)