id="p-1">In this article, the Editor of Geophysics provides an overview of all technical articles in this issue of the journal.
id="p-2">Bathija et al. argue that despite the abundance and usage of clay minerals, swelling of clays under stress have not received enough scientific attention. They quantify the elastic modulus of swelling clay mineral by molecular simulations and validate this by nanoindentation measurements.
id="p-3">Berkhout et al. introduce a seismic-acquisition method where the current approach (discontinuous recording, zero overlap in time) is replaced by a blended alternative (continuous recording, significant overlap in time). When the focus is on quality, a denser spatial sampling, a larger aperture, and a much wider range of azimuths is possible for the same number of channels and the same survey time, but alternatively the focus can be on economics.
