Table T4. Proposed analyses of the communal glass samples.

Measurement Investigator Number of analyses Aliquot
Fourier transform infrared spectroscopy water Armstrong, Robin 5 to 10 5 mm chips
Microprobe for major elements Fisk, Martin 30 to 40 + 20 thin sections 5 mm chips and thin sections
Microprobe and optical microscopy for biological alteration Fisk, Martin 20 thin sections thin sections
Ion probe for C, S, and trace element distribution and Pb isotopes Ludden, John 10 to 20 1 to 5 mm bio + chips
LA-ICP-MS for trace elements Plank, Terry 20 to 30 >1 mm chips
Ion probe for S, Se, metals Rouxel, Olivier same 10-20 chips of Ludden 1 to 5 mm bio + chips
Mass spectrometry Sr, Nd, Pb isotopes Schmidt, Angelika 1 0.5 g
Cl isotopes and halogens Spivack, Arthur 2 to 3 250 mg
Microscopy of biological alteration Staudigel, Hubert same as/share with Fisk thin sections
Magnetic intensity Steiner, Maureen 10 to 12 50 mg
Li, B isotopes Valentine, Robbie 2 1 g
N isotopes Bebout 2-3 <1 g

Note: LA-ICP-MS = laser ablation-inductively coupled plasma-mass spectrometry.