GX-5 Calcite: A New Matrix-Matched Reference Material for In-Situ LA-ICP-MS Carbonate U–Pb Geochronology

Key Points

• The aim is to introduce and evaluate GX-5 Calcite as a reference material for U–Pb dating of carbonates using laser ablation techniques.
• Developed GX-5 Calcite as a matrix-matched reference material.
• Conducted U–Pb dating experiments using laser ablation techniques.
• Compared dating results with existing materials to assess accuracy.
• GX-5 Calcite showed improved accuracy in U–Pb dating for carbonate materials.
• The results indicate its suitability for resource exploration applications.