ИСТИНА

Lunar pyroclastic deposits (LPD) represent traces of past volcanic activity encountered across the equatorial surface of the Moon. Most of the LPD is located on the near side, both in marine and highlands regions. Quite a lot of these are directly on the boundary mare/highlands areas. Visually, they are regions of low albedo com-pared to the surrounding areas. Important component of these deposits is the pyroclastic glass, some examples of which were delivered by Apollo 15, 17. Such deposits contain information about the deep layers of the mantle. Volatile elements enclosed inside the volcanic glass characterize the composition of ancient lunar matter. In the experiments, A. Saal found strong evidence that water and other volatile elements contained within the glass beads, have been voted there just in eruption process. Numerical simulations shows that currently remain some lunar mantle zone, where the concentration of water can reach 600 ppm. The hydrogen content (neutrons count rate) in LPD areas can indicate the amount of water in the lunar mantle beneath these deposits. It should be mentioned that the reduced count rate of epithermal neutrons corresponds to increased hydrogen content.Thus it makes sense to look for a correlation between indications of LEND neutron spectrometer [6] and the location of LPD, which are known to about 100. We consider the analysis of neutron flux for the pyroclastic deposits of three areas located on the near side of the Moon.