Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| relativeageid | serial | 10 | √ | nextval('ndb.seq_relativeages_relativeageid'::regclass) |
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An arbitrary Relative Age identification number. |
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| relativeageunitid | int4 | 10 | null |
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Relative Age Unit (e.g. «Marine isotope stage», «Land mammal age»). Field links to the RelativeAgeUnits lookup table. |
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| relativeagescaleid | int4 | 10 | null |
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Relative Age Scale (e.g. «Geologic time scale», «Marine isotope stages»). Field links to the RelativeAgeScales lookup table. |
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| relativeage | varchar | 64 | null |
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Relative Age (e.g. «Rancholabrean», a land mammal age; «MIS 11», marine isotope stage 11). |
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| c14ageyounger | float8 | 17,17 | √ | null |
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Younger age of the Relative Age unit in 14C yr B.P. Applies only to Relative Age units within the radiocarbon time scale. |
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| c14ageolder | float8 | 17,17 | √ | null |
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Older age of the Relative Age unit in 14C yr B.P. Applies only to Relative Age units within the radiocarbon time scale. |
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| calageyounger | float8 | 17,17 | √ | null |
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Younger age of the Relative Age unit in calendar years. |
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| calageolder | float8 | 17,17 | √ | null |
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Older age of the Relative age unit in calendar years. |
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| notes | text | 2147483647 | √ | null |
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Free form notes or comments about Relative Age unit. |
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| recdatecreated | timestamp | 22 | timezone('UTC'::text, now()) |
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| recdatemodified | timestamp | 22 | null |
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Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| relativeages_pkey | Primary key | Asc | relativeageid |
| ix_relativeagescaleid_relativeages | Performance | Asc | relativeagescaleid |