Samples dated with AAR

Note

This section was designed by D. Ryan

Age

Age is Older/Equal/Younger than - Select one option among those listed.

Marine Isotopic Stage - Select a MIS from the list. Add new MIS definitions if necessary. If the MIS is already present in the list but a different definition is needed, use the text box below (Comments/details on MIS designation).

Comments/details on MIS designation - Provide comments or details on the designation above.

Reported age (ka) - Reported age.

Reported age uncertainty (±2-sigma) (ka) - Reported age uncertainty. If the uncertainty level is not reported, note it in the textbox above. If reported to ±1-sigma level, transform to ±2-sigma.

Detailed sample and analysis information

Sample Type - Indicate whether marine/estuarine/freshwater mollusc or gastropod shell, foraminifer, or whole-rock sample.

Taxonomy - If known or applicable, provide at least the Genus. Description to the species level is beneficial.

Current Annual Mean Temperature (deg C) - The mean annual temperature for the field location as determined from the national government bureau of meteorology or equivalent.

Collection Context - Brief description of taphonomic condition and depositional setting/sedimentary environment/facies; e.g. mollusc shell in live position, robust condition with little or no evidence of abrasion, in back-barrier lagoon sediments

Depth of burial (m) - Depth of burial below modern surface. If present, include proximity to over- or underlying diastems and/or unconformities. If unknown digit “unknown”.

Preparation procedure - Reference to sample preparation procedure.

Method of chromatography - E.g. gas chromatography (GC), reversed-phase high-performance liquid chromatography (RP-HPLC), or ion-exchange chromatography high performance liquid chromatography (IEC HPLC). If unknown, digit “unknown”

Stationary phase of the column - Describe the stationary phase of the column.

Notes and comments on sample quality - Any additional notes concerning sample that may have impact of sample results.

Sample position - Indicate what portion of the shell was sampled, e.g. lip, hinge, etc.

Whole-Rock? - Indicate if the record refers to a whole-rock analysis.

Warning

The following fields appear if “Yes” is selected above:

Grain Size (micro-m)

Carbonate (%)

Fraction (micro-m)

Number of replicates (samples)

Number of sample replicates (injections)

Ratio type - Was peak height or peak area reported?

Pyrolysis experiment available - Indicate if the results of a pyrolysis (isothermal heating) experiment are used in discussion of field sample results and reference publication

Reported Amino Acid D/L Values (THAA)

Level of uncertainty - Result uncertainty, e.g. 1-sigma or 2-sigma or N/A.

Amino Acid D/L values:

Aspartic / Aspartic uncertainty

Glutamic / Glutamic uncertainty

Serine / Serine uncertainty

Alanine / Alanine uncertainty

Valine / Valine uncertainty

A/I / A/I uncertainty

Leucine / Leucine uncertainty

Notes/Comments - Any additional information that may be worthy of mention

Note

The following selections define which fields must be filled next:

Independent age constraints available?

Calibration data available?

Are free AAR ratios available?

Reported Amino Acid D/L Values (FAA)

Warning

This tab is activated only if ‘Yes’ is selected in the ‘Are free AAR ratios available?’ field

Level of uncertainty - Insert uncertainty, e.g. 1-sigma or 2-sigma or N/A.

Amino Acid D/L values:

Aspartic / Aspartic uncertainty

Glutamic / Glutamic uncertainty

Serine / Serine uncertainty

Alanine / Alanine uncertainty

Valine / Valine uncertainty

A/I / A/I uncertainty

Leucine / Leucine uncertainty

Notes/Comments - Any additional information that may be worthy of mention

Calibration

Warning

This field is activated only if ‘Yes’ is selected in the ‘Calibration data available?’ field

Calibration method - Method for calibrating age. The most common approach is to subdivide a single sample, and analyze one subsample with AAR and the second with the complementary method.

Amino Acid age equation - If the D/L values are calibrated to provide an age, what equation is used.

Calibration laboratory - Laboratory where the age calibration was done.

Calibration laboratory ID - Original ID of the age calibration.

Calibration reference - Select a reference for the age calibration.

Calibration D/L value / Calibration D/L value uncertainty (±1-sigma)

Calibration age (ka) / Calibration age (ka) uncertainty (±1-sigma)

Independent Age

Warning

This field is activated only if ‘Yes’ is selected in the ‘Independent age constraints available?’ field

Independent age choice - Select the independent age constraint available. Option will appear according to the selected value in this field.

The following selections appear depending on the choice made above:

Independent age method - Describe briefly the independent age determination methodology.

Independent age laboratory - Insert the name of the laboratory where the independent age has been obtained.

Independent age laboratory ID - Laboratory ID for the independent age.

Independent age result - Indicate here the independent age and associated uncertainties.

Independent age reference - Select a reference for the independent age.

Useries constraint - If a U-Series independent constraint is available, select the ID here.

ESR constraint - If an ESR independent constraint is available, select the ID here.

Luminescence constraint - If a luminescence independent constraint is available, select the ID here.

Stratigraphic constraint - If a stratigraphic independent constraint is available, select the ID here.