  Muon tomography (MT), based on atmospheric cosmic rays, is a promising
technique suitable for nondestructive imaging of the internal structures of
mountains. This method uses the measured flux distribution after attenuation,
combined with the known muon angular and energy distributions and a 3D
satellite map, to perform tomographic imaging of the density distribution
inside a probed volume. A muon tomography station (MTS) requires
direction-sensitive detectors with a high resolution for optimal tracking of
incident cosmic-ray muons. The spherical liquid scintillator detector is one of
the best candidates for this application due to its uniform detection
efficiency for the whole $4\pi$ solid angle and its excellent ability to
distinguish muon signals from the radioactive background via the difference in
the energy deposit. This type of detector, with a 1.3~m diameter, was used in
the Jinping Neutrino Experiment~(JNE). Its angular resolution is 4.9~degrees.
Following the application of imaging for structures of Jinping Mountain with
JNE published results based on the detector, we apply it to geological
prospecting. For mountains below 1~km in height and 2.8~${\rm g}/{\rm cm}^3$ in
the reference rock, we demonstrate that this kind of detector can image
internal regions with densities of $\leq$ 2.1~${\rm g}/{\rm cm}^3$ or $\geq$
3.5~${\rm g}/{\rm cm}^3$ and hundreds of meters in size.
