Sensitive High Resolution Ion Microprobe (SHRIMP) - Analyses

This layer delivers one row of analytical data (radiogenic isotopic ratios and dates) per individual SHRIMP burn-spot. Each point or feature corresponds to an Analysis, of either a sample dated as an unknown (within a parent Group and Interpreted Set), or a U-Pb reference material, or a Pb-Pb reference material. It unites three underlying tables: shrimp_unknown_analyses (samples dated as unknowns), shrimp_u_pb_ref_analyses (U-Pb reference materials), shrimp_pb_pb_ref_analyses (Pb-Pb reference materials).