Mineral measures

mineral_measures

This table stores isotopic measurements related to inorganic proxies, such as those obtained from teeth enamel, shells, or minerals. It includes data on isotopic ratios (e.g., δ18O, 87Sr/86Sr) that are used to infer past climate conditions, migration patterns, or geological sources.

Sample identifier

sample_id

Sample identifier is a unique identifier assigned first by the compiler and then by the IsoArcH database to each collected sample. In each dataset, these numbers will span from 1 to n, with n representing the maximum number of samples compiled. Once in the IsoArcH database, this identifier will include the dataset number as a prefix. GRIST may automatically populate this field. Example: 1

Type	Required	Table
identifier	yes	samples, organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Dataset DOI

dataset_doi

This field contains the Digital Object Identifier (DOI) assigned to the dataset. It provides a unique and permanent identifier for the dataset, ensuring it can be accurately cited and easily retrieved in digital repositories associated with IsoArcH. In the case of compilations, the IsoArcH DOI also references the original source works included in the dataset, providing proper attribution and a direct link to the foundational research.

Type	Required	Table
string	no	datasets, organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Database name

database_name

This field contains the official name of the source database. It is used specifically to identify and refer to the external database that provided the data, ensuring proper attribution.

Type	Required	Table
string	no	databases, organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Sampled zone identifier

sampled_zone_id

Serial order enables the numbering of sequential samplings taken from a specific sample, typically from dentine, enamel, or hair.

Type	Required	Table
string	no	organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Tooth fraction

tooth_fraction

Tooth fraction refers to the particular portion of the tooth that has been sampled.

Type	Required	Validations	Table
string	no	Lowercase: yes	organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Allowed Values:

• dentine
• enamel
• pulp

Analytical parameters identifier

analytical_parameters_id

This field contains the unique identifier for the set of analytical parameters associated with a specific analysis.

Type	Required	Table
identifier	no	organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures, analytical_parameters

Instrumentation

instrumentation

This field specifies the type of instrument or equipment used to conduct the analysis and obtain the measured values.

Type	Required	Table
string	no	organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Run identifier

run_id

This field contains a unique identifier for a specific analytical run or session in which data were collected.

Type	Required	Table
identifier	no	organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Run date

run_date

This field records the date when a specific analytical run or session was performed, documenting when the data were collected to ensure traceability. The date should be entered in the format YYYY-MM-DD (e.g., 2024-11-07).

Type	Required	Table
string	no	organic_measures, mineral_measures, radiocarbon_measures, amino_acid_measures

Result type

result_type

Result type is a field that enables specification of the type of measured value being reported. When multiple values, such as a range, are applicable to a specific sample, this field should be completed multiple times, each on a separate line.

Type	Required	Validations	Table
string	no	Lowercase: yes	organic_measures, mineral_measures, radiocarbon_measures

Allowed Values:

• min
• max
• mean
• exact

δ13C carbonate (‰vpdb)

d13c_carbonate_vpdb

Type	Required	Unit/Norm	Table
decimal	no	‰vpdb	mineral_measures

δ13C carbonate (‰vpdb) uncertainty

d13c_carbonate_vpdb_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	‰vpdb	mineral_measures

δ13C carbonate uncertainty type

d13c_carbonate_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

δ18O carbonate (‰vpdb)

d18o_carbonate_vpdb

Type	Required	Unit/Norm	Table
decimal	no	‰vpdb	mineral_measures

δ18O carbonate (‰vpdb) uncertainty

d18o_carbonate_vpdb_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	‰vpdb	mineral_measures

δ18O carbonate (‰vsmow)

d18o_carbonate_vsmow

Type	Required	Unit/Norm	Table
decimal	no	‰vsmow	mineral_measures

δ18O carbonate (‰vsmow) uncertainty

d18o_carbonate_vsmow_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	‰vsmow	mineral_measures

δ18O carbonate uncertainty type

d18o_carbonate_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

δ18O phosphate (‰vsmow)

d18o_phosphate_vsmow

Type	Required	Unit/Norm	Table
decimal	no	‰vsmow	mineral_measures

δ18O phosphate (‰vsmow) uncertainty

d18o_phosphate_vsmow_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	‰vsmow	mineral_measures

δ18O phosphate uncertainty type

d18o_phosphate_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

δ18O total (‰vsmow)

d18o_total_vsmow

Type	Required	Unit/Norm	Table
decimal	no	‰vsmow	mineral_measures

δ18O total (‰vsmow) uncertainty

d18o_total_vsmow_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	‰vsmow	mineral_measures

δ18O total uncertainty type

d18o_total_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

87Sr/86Sr

sr87_sr86

Type	Required	Table
decimal	no	mineral_measures

87Sr/86Sr uncertainty

sr87_sr86_uncertainty

Type	Required	Table
decimal	no	mineral_measures

87Sr/86Sr uncertainty type

sr87_sr86_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

δ88Sr (‰srm987)

d88sr_srm987

Type	Required	Unit/Norm	Table
decimal	no	‰srm987	mineral_measures

δ88Sr (‰srm987) uncertainty

d88sr_srm987_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	‰srm987	mineral_measures

δ88Sr uncertainty type

d88sr_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

Sr concentration (ppm)

sr_concentration_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

Sr concentration (ppm) uncertainty

sr_concentration_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

Sr concentration uncertainty type

sr_concentration_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

206Pb/204Pb (ppm)

pb206_pb204_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

206Pb/204Pb (ppm) uncertainty

pb206_pb204_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

206Pb/204Pb uncertainty type

pb206_pb204_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

207Pb/204Pb (ppm)

pb207_pb204_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

207Pb/204Pb (ppm) uncertainty

pb207_pb204_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

207Pb/204Pb uncertainty type

pb207_pb204_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

208Pb/204Pb (ppm)

pb208_pb204_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

208Pb/204Pb (ppm) uncertainty

pb208_pb204_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

208Pb/204Pb uncertainty type

pb208_pb204_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

207Pb/206Pb (ppm)

pb207_pb206_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

207Pb/206Pb (ppm) uncertainty

pb207_pb206_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

207Pb/206Pb uncertainty type

pb207_pb206_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

208Pb/206Pb (ppm)

pb208_pb206_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

208Pb/206Pb (ppm) uncertainty

pb208_pb206_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

208Pb/206Pb uncertainty type

pb208_pb206_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

206Pb/207Pb (ppm)

pb206_pb207_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

206Pb/207Pb (ppm) uncertainty

pb206_pb207_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

206Pb/207Pb uncertainty type

pb206_pb207_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

208Pb/207Pb (ppm)

pb208_pb207_ppm

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

208Pb/207Pb (ppm) uncertainty

pb208_pb207_ppm_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppm	mineral_measures

208Pb/207Pb uncertainty type

pb208_pb207_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

143Nd/144Nd

nd143_nd144

Type	Required	Table
decimal	no	mineral_measures

143Nd/144Nd uncertainty

nd143_nd144_uncertainty

Type	Required	Table
decimal	no	mineral_measures

143Nd/144Nd uncertainty type

nd143_nd144_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se

εnd

eend

Type	Required	Table
decimal	no	mineral_measures

Nd concentration (ppb)

nd_concentration_ppb

Type	Required	Unit/Norm	Table
decimal	no	ppb	mineral_measures

Nd concentration (ppb) uncertainty

nd_concentration_ppb_uncertainty

Type	Required	Unit/Norm	Table
decimal	no	ppb	mineral_measures

Nd concentration uncertainty type

nd_concentration_uncertainty_type

Type	Required	Validations	Table
string	no	Lowercase: yes	mineral_measures

Allowed Values:

• sd
• 2sd
• se
• 2se