.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "api/gallery/plate_tectonics/plot_05_wegener_continental_drift.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_api_gallery_plate_tectonics_plot_05_wegener_continental_drift.py>`
        to download the full example code or to run this example in your browser via JupyterLite.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_api_gallery_plate_tectonics_plot_05_wegener_continental_drift.py:


Wegener's continental drift (1912)
==================================

Alfred Wegener argued from matching coastlines, fossils and rocks that South
America and Africa were once joined. At a few centimetres a year, the
separation since the opening of the South Atlantic is thousands of
kilometres. The rate here is a representative value, not a reconstruction.

.. GENERATED FROM PYTHON SOURCE LINES 10-28



.. image-sg:: /api/gallery/plate_tectonics/images/sphx_glr_plot_05_wegener_continental_drift_001.png
   :alt: 3 cm/year opens an ocean
   :srcset: /api/gallery/plate_tectonics/images/sphx_glr_plot_05_wegener_continental_drift_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import matplotlib.pyplot as plt
    import numpy as np

    from earthsciencekit.plate_tectonics import plate_displacement
    from earthsciencekit.units import convert

    speed = convert(3.0, "cm/year", "m/s")
    time = convert(np.linspace(0, 120e6, 121), "year", "s")
    separation = plate_displacement(speed, time)
    assert np.isclose(separation[-1], 3.6e6)

    fig, ax = plt.subplots()
    ax.plot(convert(time, "s", "year") / 1e6, separation / 1e3)
    ax.set(xlabel="time since break-up [million years]", ylabel="South America-Africa separation [km]")
    ax.set_title("3 cm/year opens an ocean")

    plt.show()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.076 seconds)


.. _sphx_glr_download_api_gallery_plate_tectonics_plot_05_wegener_continental_drift.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: lite-badge

      .. image:: images/jupyterlite_badge_logo.svg
        :target: ../../../lite/lab/index.html?path=api/gallery/plate_tectonics/plot_05_wegener_continental_drift.ipynb
        :alt: Launch JupyterLite
        :width: 150 px

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: plot_05_wegener_continental_drift.ipynb <plot_05_wegener_continental_drift.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: plot_05_wegener_continental_drift.py <plot_05_wegener_continental_drift.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: plot_05_wegener_continental_drift.zip <plot_05_wegener_continental_drift.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_