Lower Ordovician | Stratigraphy | eMaapõu

Lower Ordovician

General info

Belongs to	Ordovician
Type	chronostratigraphy
Rank	Series
Scope	global
Status	formal standard
Age top (Ma)	470
Age base (Ma)	485.4
Index	O₁
Alt. index	O₁
Date added	2003-03-23
Date changed	2022-11-04

Stratotypes

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References (4)Sub units (2)Specimens (6439)Samples (3606)

Quick search

ID	Sample No.	Locality	Depth / thickness (m)	Stratigraphy	Collector	Date collected	Image
104042	104042	Ohtu 133 borehole	61.4	Lower Ordovician	Mägi, Silvi
103031	AU-Män-127	Männamaa F-367 borehole	187	Pakerort Stage	Nõlvak, Jaak
103024	AU-944	Suhkrumägi outcrop		Tremadocian	Uutela, Anneli
102814	AU-943	Suhkrumägi outcrop		Varangu Stage	Uutela, Anneli	1985-07-19
102813	AU-945	Suhkrumägi outcrop		Tremadocian	Uutela, Anneli	1985-07-19
102389	102389	Mäeküla tunnels		Pakerort Stage	Toom, Ursula	2011-06-22
102385	102385	Viki borehole	362.7	Billingen Stage	Shogenova, Alla	2006-08-01
102231	102231	Tsiistre 327 borehole	494	Lower Ordovician	Shogenova, Alla
100405	Es-2	Lasnamägi		Pakerort Stage	Kiipli, Tarmo
99947	500	Ruhnu 500 borehole	706.7	Pakerort Stage	Shogenova, Alla
99946	500	Ruhnu 500 borehole	706.7	Pakerort Stage	Shogenova, Alla
99945	500	Ruhnu 500 borehole	706.7	Pakerort Stage	Shogenova, Alla
99944	500	Ruhnu 500 borehole	706.7	Pakerort Stage	Shogenova, Alla
99578	Saka 7	Saka outcrop	1.2	Varangu Stage	Voolma, Margus
97934	97934	Krasnoye Selo		Pakerort Stage	Jürgenson, Erika	1955-08-08
96758	96758	Kandava 25 borehole	1023.8	Lower Ordovician	Hints, Linda
96757	96757	Kandava 25 borehole	1015.9	Lower Ordovician	Eksp.
96756	96756	Kandava 25 borehole	988.6	Lower Ordovician	Eksp.
96755	96755	Kandava 25 borehole	986.7	Lower Ordovician	Eksp.
96754	96754	Kandava 25 borehole	981.7	Lower Ordovician	Eksp.
96753	96753	Kandava 25 borehole	979.8	Lower Ordovician	Eksp.
96752	96752	Kandava 25 borehole	977.4	Lower Ordovician	Hints, Linda
96751	96751	Kandava 25 borehole	975.8	Lower Ordovician	Hints, Linda
96750	96750	Kandava 25 borehole	972.4	Lower Ordovician	Hints, Linda
96749	96749	Kandava 25 borehole	969.6	Lower Ordovician	Hints, Linda

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