Volkhov Stage
General info
| Belongs to |
Ontika Subseries
|
| Type | chronostratigraphy |
| Rank | Stage |
| Scope | regional |
| Status | formal standard |
| Author | Raymond |
| Year | 1916 |
| Etymon | Volkhov river, Russia |
| Age top (Ma) | 467.5 |
| Age base (Ma) | 471.8 |
| Age (Ma) |
Middle Ordovician
|
| Age reference | Cooper & Sadler, 2004 |
| Index | BII |
| Alt. index | O2VL |
| Date changed | 2022-12-05 |
Stratotypes
| Locality | Type | From (m)1 | To (m)2 | Reference | Remarks |
|---|---|---|---|---|---|
unspecified
| Hints, L. et al., 1993a | Distinguished in NW Russia |
| Stratigraphy | Index | Index add'l | Type | Rank | Scope | Belongs to | Age base (Ma) | Age top (Ma) | Age |
|---|---|---|---|---|---|---|---|---|---|
| Kalvi Member | BI-IIT'Ka | O2tlK |
lithostratigraphy
|
Member
|
regional
| Toila Formation |
Volkhov Stage
| ||
| Kriukai Formation | O2kri |
lithostratigraphy
|
Formation
|
regional
| Baltic lithostratigraphy (Ordovician) |
Volkhov Stage
| |||
| Künnapõhja Member | BIIT'K | O2tlKü |
lithostratigraphy
|
Member
|
regional
| Toila Formation |
Volkhov Stage
| ||
| Lahepera Member | BI-IIIT'L | O2tlL |
lithostratigraphy
|
Member
|
regional
| Toila Formation |
Volkhov Stage
| ||
| Pada Member | BII-IIIS'P | O2slP |
lithostratigraphy
|
Member
|
regional
| Sillaoru Formation |
Volkhov Stage
| ||
| Saka Member | BI-IIT'S | O2tlS |
lithostratigraphy
|
Member
|
regional
| Toila Formation |
Volkhov Stage
| ||
| Toila Formation | BI-IIT | O1-2tl |
lithostratigraphy
|
Formation
|
regional
| Baltic lithostratigraphy (Ordovician) |
Volkhov Stage
| ||
| Tõlinõmme Member | BI-IIT'T | O2tlT |
lithostratigraphy
|
Member
|
regional
| Toila Formation |
Volkhov Stage
|
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