Magnetics Information Consortium (MagIC)
Development and Maintenance by the EarthRef.org Database Team

Standard MagIC Data Format -- pmag_specimens Table -- Version 2.4
All Tables
Click to expand the Data Model Diagram
MagIC Data Model
F Status N Database Field Variable Name Units Required Description
66 Specimen Correction Anisotropy specimen_int_corr_anisotropy Dimensionless Optional Anisotropy correction factor for intensity
59 Specimen Lab Field DC specimen_lab_field_dc Number in T Optional Applied DC field in laboratory Examples are: 0 = no field and -1 = ambient field
60 Specimen Lab Field AC specimen_lab_field_ac Number in T Optional Applied maximum or peak AC field in laboratory Examples are: No field equals 0 and ambient field equals -1
35 Specimen Paleo Intensity specimen_int Number in T Recommended Average field strength
36 Specimen Paleo Intensity Sigma specimen_int_sigma Number in T Recommended Average field strength, Uncertainty Examples are: Uncertainty = 1xSD
37 Specimen Paleo Intensity Sigma % specimen_int_sigma_perc Number in % Recommended Average field strength, Uncertainty in percent Examples are: Uncertainty = 1xSD
45 Specimen f specimen_f Dimensionless Optional COE's quality factors, Amount of NRM in component
48 Specimen b Sigma specimen_b_sigma Dimensionless Optional COE's quality factors, Error on slope fit Examples are: Uncertainty = 1xSD
44 Specimen Q specimen_q Dimensionless Optional COE's quality factors, Overall quality
49 Specimen Sigma over b specimen_b_beta Dimensionless Optional COE's quality factors, Relative error over slope Examples are: Uncertainty = 1xSD
47 Specimen b specimen_b Dimensionless Optional COE's quality factors, Slope of Arai diagram
50 Specimen g specimen_g Dimensionless Optional COE's quality factors, The GAP factor
46 Specimen f VDS specimen_fvds Dimensionless Optional COE's quality factors, Vector difference sum of NRM components
53 Specimen Maximum pTRM specimen_ptrm Number in % Optional Classical pTRM check
Renamed 73 External Database ID Numbers external_database_ids Text Optional Colon-delimited list of ID numbers linking to external database records Examples are: 1435, 23, 2329
R 79 Citation Names er_citation_names Text Required Colon-delimited list of citations Examples are: Smith et al. 2003, Hart & Heard 1967, This study
R 74 Criteria Codes pmag_criteria_codes Text Recommended Colon-delimited list of criteria codes Examples are: MY-MAD, MY-APLHA95
X 11 Experiment Name List magic_experiment_names Text Optional Colon-delimited list of experiments Examples are: KOPA-299-1, KOPA-299-2, KOPA-299-6
E Renamed 72 External Database Names external_database_names Text Optional Colon-delimited list of external databases where data are used Examples are: GEOMAGIA50, CALS7K.2, ARCHEO00
R 77 Instrument Codes magic_instrument_codes Text Required Colon-delimited list of instrument codes Examples are: SIO-Bubba, IRM-OldBlue
R 76 Method Codes magic_method_codes Text Required Colon-delimited list of method codes Examples are: DE-DC0, FT-F1, LP-DCDMAG
R 78 Analyst Names er_analyst_mail_names Text Required Colon-delimited list of names for analysts Examples are: Jim R.D. Hart, Alexis Heard, Bob McIntire
R 75 Rotation Codes pmag_rotation_codes Text Optional Colon-delimited list of rotation codes Examples are: MY-TILT1, MY-TILT2, MY-TRANS1
Inserted 71 MagIC Software Packages magic_software_packages Text Recommended Colon-delimited list of software used for data reduction Examples are: PmagPy v1.67b, FORCinel v1.11
65 Specimen Correction Cooling Rate specimen_int_corr_cooling_rate Dimensionless Optional Cooling rate correction factor for intensity
57 Specimen Z specimen_z Dimensionless Optional Degree zigzag behavior in a paleointensity experiment Examples are: Real number between -1 and 100
70 Specimen Description specimen_description Text Optional Detailed description
51 Specimen DANG specimen_dang Number in Degrees Optional Deviation angle of direction of component with respect to origin
54 Specimen Difference Ratio pTRM Checks specimen_drat Number in % Optional Difference in first and second pTRM measurements Examples are: Normalized by hypotenuse
F 18 Specimen Direction Type specimen_direction_type Flag Recommended Direction determined from a line (l) or plane (p) Examples are: Default = l
29 Specimen Declination specimen_dec Number in Degrees Recommended Directions in coordinates specified by tilt correction, Declination Examples are: Decimal degrees between 0 and 360
28 Specimen Inclination specimen_inc Number in Degrees Recommended Directions in coordinates specified by tilt correction, Inclination Examples are: Decimal degrees between -90 and 90
31 Specimen Alpha 95% specimen_alpha95 Number in Degrees Recommended Fisher circle Examples are: Confidence Level = 95%
F 17 Specimen Data Corrected specimen_correction Flag Required Indicating if an uncorrected (u) or corrected (c) estimate with regard to possible anisotropy and cooling rate corrections Examples are: Default = u
F Inserted 19 Specimen Flag specimen_flag Flag Recommended Indicating if good (g) or bad (b) data Examples are: Default = g
20 Specimen Component Number specimen_comp_nmb Integer Recommended Magnetic component number
Inserted 69 Specimen Gamma specimen_gamma Number in Degrees Recommended Maximum angle of deviation between acquired pTRM direction and assumed applied field direction
Inserted 67 Specimen Delta specimen_delta Number in Degrees Recommended Maximum angle of deviation between assumed NRM and measured NRM in perpendicular paleointensity method
Inserted 68 Specimen Theta specimen_theta Number in Degrees Recommended Maximum angle of deviation between assumed NRM and measured NRM in perpendicular paleointensity method
30 Specimen MAD specimen_mad Number in Degrees Recommended Maximum angle of deviation of the best fit direction or plane
41 Specimen Paleo Intensity MAD specimen_int_mad Number in Degrees Recommended Maximum angle of deviation of the best fit line
52 Specimen Maximum MD specimen_md Number in % Optional Maximum difference between first and second zero field steps
56 Specimen Maximum RSC specimen_rsc Number in % Optional Maximum relative susceptibility change
63 Specimen Magnetization Mass specimen_magn_mass Number in Am2/kg Optional Measured intensity of magnetization, Mass normalized
62 Specimen Magnetization Volume specimen_magn_volume Number in A/m Optional Measured intensity of magnetization, Volume normalized
61 Specimen Magnetization Moment specimen_magn_moment Number in Am2 Optional Measured magnetic moment
R 3 Formation Name er_formation_name Text Optional Name for formation Examples are: Bluebird Formation
R 8 Fossil Name er_fossil_name Text Recommended Name for fossil Examples are: AMM43-03
R 2 Location Name er_location_name Text Required Name for location, dredge or drill site Examples are: San Francisco Volcanic Province, Dredge AMAT02-D12, Site 801
R 4 Member Name er_member_name Text Optional Name for member Examples are: Glasshound Member
R 9 Mineral Name er_mineral_name Text Recommended Name for mineral Examples are: San03-001
R 6 Sample Name er_sample_name Text Required Name for sample Examples are: Bas123a-01
R 1 Expedition Name er_expedition_name Text Optional Name for seagoing or land expedition Examples are: AVON02MV
R 5 Site Name er_site_name Text Required Name for site Examples are: Bas123a
R 7 Specimen Name er_specimen_name Text Required Name for specimen Examples are: Bas123a-01x
R 10 Synthetic Material Name er_synthetic_name Text Optional Name for synthetic material Examples are: STD1546-A1
32 Specimen N specimen_n Integer Recommended Number of measurements included in directional calculations
42 Specimen Paleo Intensity N specimen_int_n Integer Recommended Number of measurements included in intensity calculations
Inserted 33 Specimen N Total specimen_n_total Integer Recommended Number of measurements total
64 Specimen Number pTRM Checks specimen_int_ptrm_n Dimensionless Optional Number of pTRM checks used in experiment
F 16 Specimen NRM specimen_nrm Flag Recommended Origin of the NRM is primary (p) or secondary (s) Examples are: Default = p
34 Specimen Tilt Correction specimen_tilt_correction Number in % Recommended Percentage tilt correction applied to the data Examples are: Correction between geographic (0%) and stratigraphic (100%); unoriented (-1%); partially oriented to horizontal only (-2%)
F 15 Specimen Magnetic Polarity specimen_polarity Flag Recommended Polarity is normal (n), reversed (r), transitional (t), excursion (e) or intermediate (i) Examples are: Default = n
38 Specimen Paleo Intensity Relative specimen_int_rel Dimensionless Recommended Relative field strength
39 Specimen Paleo Intensity Relative Sigma specimen_int_rel_sigma Dimensionless Recommended Relative field strength, Uncertainty Examples are: Uncertainty = 1xSD
40 Specimen Paleo Intensity Relative Sigma % specimen_int_rel_sigma_perc Number in % Recommended Relative field strength, Uncertainty in percent Examples are: Uncertainty = 1xSD
22 Specimen Component Name specimen_comp_name Text Recommended Specimen component name Examples are: Characteristic, VRM, Overprint, A, B, C
23 Specimen Inferred Age specimen_inferred_age Custom Recommended Specimen inferred age
E 27 Specimen Inferred Age Unit specimen_inferred_age_unit Text Recommended Specimen inferred age, Age unit Examples are: Ma, Ka, Ga, Years BP, Years AD (+/-), Years Cal BP, Years Cal AD (+/-)
26 Specimen Inferred Age High specimen_inferred_age_high Custom Recommended Specimen inferred age, High range
25 Specimen Inferred Age Low specimen_inferred_age_low Custom Recommended Specimen inferred age, Low range
24 Specimen Inferred Age Sigma specimen_inferred_age_sigma Custom Recommended Specimen inferred age, Uncertainty Examples are: Uncertainty = 1xSD
M 13 Measurement Step Maximum measurement_step_max Custom Optional Step included in calculation, Higher bound
M 12 Measurement Step Minimum measurement_step_min Custom Optional Step included in calculation, Lower bound
M 14 Measurement Step Unit measurement_step_unit Text Optional Step included in calculation, Unit
55 Specimen Difference Ratio Sum specimen_drats Number in % Optional Sum of difference in first and second pTRM measurements Examples are: Normalized by pTRM
21 Specimen Component N specimen_comp_n Integer Recommended Total number of magnetic components in specimen
58 Specimen Viscosity Index specimen_viscosity_index Number in % Optional Viscosity index
43 Specimen Weighting Factor specimen_w Dimensionless Optional Weighting factor
Standard MagIC Data Format v2.0
Standard MagIC Data Format v2.1
Standard MagIC Data Format v2.2
Standard MagIC Data Format v2.3
Standard MagIC Data Format v2.4
Standard MagIC Data Format v2.5
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