Irben Formation
General info
| Belongs to |
Lower Cambrian (old nomenclature)
|
| Type | lithostratigraphy |
| Rank | Formation |
| Scope | regional |
| Status | formal standard |
| Author | Mens & Pirrus |
| Year | 1972 |
| Age (Ma) |
Vērgale Stage
|
| Index | Cm2ir |
| Alt. index | Ca1ir |
| Alt. index | Ꞓ1ir |
| Date added | 2012-10-16 |
| Date changed | 2022-11-18 |
Stratotypes
| Locality | Type | From (m)1 | To (m)2 | Reference | Remarks |
|---|---|---|---|---|---|
| Pavilosta 51 borehole |
holostratotype
| 1329 | 1387 | Lieldiena & Fridrihsone, 1968 |
Browse Geocollections
Partners
