  As LOFAR has shown, using a dense array of radio antennas for detecting
extensive air showers initiated by cosmic rays in the Earth's atmosphere makes
it possible to measure the depth of shower maximum for individual showers with
a statistical uncertainty less than $20\,g/cm^2$. This allows detailed studies
of the mass composition in the energy region around $10^{17}\,eV$ where the
transition from a Galactic to an Extragalactic origin could occur. Since
SKA1-low will provide a much denser and very homogeneous antenna array with a
large bandwidth of $50-350\,MHz$ it is expected to reach an uncertainty on the
$X_{\max}$ reconstruction of less than $10\,g/cm^2$. We present first results
of a simulation study with focus on the potential to reconstruct the depth of
shower maximum for individual showers to be measured with SKA1-low. In
addition, possible influences of various parameters such as the numbers of
antennas included in the analysis or the considered frequency bandwidth will be
discussed.
