Mineral measures

Sample reference

sample_reference

Sample reference 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	Sections	Required
identifier	hominins bio, samples, mineral measures, organic measures, radiocarbon measures	Yes

Tooth fraction

tooth_fraction

Legacy names

fraction of tooth sample

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

Type	Sections	Validations	Required
string	mineral measures, organic measures, radiocarbon measures	Lowercase: yes	No

Allowed Values:

• dentine
  
• enamel
  
• pulp
  

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	Sections	Validations	Required
string	mineral measures, organic measures	Lowercase: yes	No

Allowed Values:

• min
  
• max
  
• mean
  
• exact
  

Sampled zone identifier

sampled_zone_identifier

Legacy names

serial order

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

Type	Sections	Required
string	mineral measures, organic measures	No

δ13C carbonate (‰vpdb)

d13c_carbonate

Type	Sections	Required
decimal	mineral measures	No

δ13C carbonate (‰vpdb) sd

d13c_carbonate_sd

Type	Sections	Required
decimal	mineral measures	No

δ18O carbonate (‰vpdb)

d18o_carbonate_vpdb

Type	Sections	Required
decimal	mineral measures	No

δ18O carbonate (‰vpdb) sd

d18o_carbonate_vpdb_sd

Type	Sections	Required
decimal	mineral measures	No

δ18O carbonate (‰vsmow)

d18o_carbonate_vsmow

Type	Sections	Required
decimal	mineral measures	No

δ18O carbonate (‰vsmow) sd

d18o_carbonate_vsmow_sd

Type	Sections	Required
decimal	mineral measures	No

δ18O phosphate (‰vsmow)

d18o_phosphate_vsmow

Type	Sections	Required
decimal	mineral measures	No

δ18O phosphate (‰vsmow) sd

d18o_phosphate_vsmow_sd

Type	Sections	Required
decimal	mineral measures	No

87Sr/86Sr

sr87_sr86

Type	Sections	Required
decimal	mineral measures	No

87Sr/86Sr sd

sr87_sr86_sd

Type	Sections	Required
decimal	mineral measures	No

87Sr/86Sr 2se

sr87_sr86_2se

Type	Sections	Required
decimal	mineral measures	No

87Sr/86Sr - NBS987

sr87_sr86_nbs987

Type	Sections	Required
decimal	mineral measures	No

143Nd/144Nd

nd143_nd144

Type	Sections	Required
decimal	mineral measures	No

143Nd/144Nd sd

nd143_nd144_sd

Type	Sections	Required
decimal	mineral measures	No

εnd

end

Type	Sections	Required
decimal	mineral measures	No

Nd concentration (ppb)

nd_concentration

Type	Sections	Required
decimal	mineral measures	No

Sr concentration (ppm)

sr_concentration

Type	Sections	Required
decimal	mineral measures	No