Processes and configurations for subterranean resource extraction

A resource extraction configuration for in situ resource extraction from a resource deposit in an underlying subterranean space associated with a surface region, wherein the resource extraction configuration comprises:

• at least one borehole configuration, each borehole configuration comprising:
• a first borehole string extending downward from the surface region into the resource deposit, the first borehole string comprising first and second sections, the first section extending downward from the surface region and the second section extending laterally in a first lateral direction from the first section into the resource deposit;
• and
• a second borehole string extending downward from the surface region into the resource deposit, the second borehole string situated adjacent to the first borehole string and comprising first and second sections, the first section of the second borehole string extending downward from the surface region and the second section of the second borehole string extending laterally in a second lateral direction from a distal portion of the first section of the second borehole string into the resource deposit,
• where the second sections of the first and second borehole strings have walls made of permeable material to allow contact between fluid in the second sections and the resource deposit to allow for in situ leaching of resource material into the second sections and penannularly extend to form a first planar region, and the second sections distally connect at a nodal space and form a fluid path downward from the surface region through the first borehole string to the nodal space and from the nodal space upward to the surface region through the second borehole string;
• and
• wherein at least one of the at least one borehole configurations comprises a third borehole string extending downward from the surface region, the third borehole string having a distal end at the nodal space in the resource deposit.