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
|
Browse eGeology