  Geothermal energy is the key to drive the plate tectonics and interior
thermodynamics of the Earth. The surface heat flux, as measured in boreholes,
provide limited insights into the relative contributions of primordial versus
radiogenic sources of the heat budget of the mantle. Geoneutrinos, electron
antineutrinos that produced from the radioactive decay of the heat producing
elements, are unique probes that bring direct information about the amount and
distribution of heat producing elements in the crust and mantle. Cosmochemical,
geochemical, and geodynamic compositional models of the Bulk Silicate Earth
(BSE) individually predicts different mantle neutrino fluxes, and therefore can
be distinguished by the direct measurement of geoneutrinos. The 20 kton
detector of the Jiangmen Underground Neutrino Observatory (JUNO), currently
under construction in the Guangdong Province (China), is expected to provide an
exciting opportunity to obtain a high statistics measurement, which will
produce sufficient data to address several key questions of geological
importance. To test different compositional models of the mantle, an accurate
estimation of the crust geoneutrino flux based on a three-dimensional (3-D)
crust model in advance is important. This paper presents a 3-D crust model over
a surface area of 10-degrees-times-10-degrees grid surrounding the JUNO
detector and a depth down to the Moho discontinuity, based on the geological,
geophysical and geochemistry properties. The 3-D model provides a distinction
of the volumes of the different geological layers together with the
corresponding Th and U abundances. We also present our predicted local
contribution to the total geoneutrino flux and the corresponding radiogenic
heat.
