Delamination in layered stone sculptures is a common issue caused by environmental factors, aging, or improper handling. To restore these delicate artworks effectively, several proven methods can be employed.

1. Adhesive Reattachment: Use specialized conservation adhesives like epoxy resins or acrylics, carefully applied to re-bond separated layers without damaging the stone.

2. Consolidation: For weakened areas, inject consolidants such as silicates or polymers to strengthen the internal structure and prevent further delamination.

3. Mechanical Support: Insert fine pins or dowels made of inert materials (e.g., titanium) to stabilize detached sections while maintaining aesthetic integrity.

4. Climate Control: Post-repair, maintain stable humidity and temperature to prevent recurring delamination, as stone is sensitive to moisture fluctuations.

5. Preventive Measures: Regular inspections and gentle cleaning with pH-neutral solutions can prolong the sculpture’s lifespan.

Always consult a professional conservator for valuable or historic pieces to ensure culturally sensitive restoration. Combining these techniques ensures both structural integrity and artistic preservation.