West Siberian sedimentary basin

E1050072 UNEXPLORED

The West Siberian sedimentary basin is a vast, low-lying geological basin in western Siberia that hosts some of the world’s largest oil and natural gas reserves.

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All labels observed (3)

Label	Occurrences
West Siberian petroleum basin	5
West Siberian Basin	3
West Siberian sedimentary basin canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T13604083 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: West Siberian sedimentary basin
Context triple: [Gulf of Ob, geologicalSetting, West Siberian sedimentary basin]

A. West Siberian drainage basin
The West Siberian drainage basin is a vast hydrological region in western Siberia that collects and channels river systems toward the Arctic Ocean, including major rivers such as the Ob and its tributaries.
B. Makarov Basin
Makarov Basin is a deep, remote oceanic basin in the Arctic Ocean, situated between major underwater ridges and adjacent basins such as the Amundsen Basin.
C. Western Siberia
Western Siberia is a vast region of northern Asia characterized by extensive plains, taiga, and tundra, stretching from the Ural Mountains toward central Siberia and known for its harsh climate and significant natural resources.
D. Kuzbass coal basin
The Kuzbass coal basin is one of Russia’s largest and most important coal-mining regions, located in southwestern Siberia.
E. Siberian continental shelf
The Siberian continental shelf is an extensive, shallow underwater extension of the Siberian landmass in the Arctic Ocean, notable as one of the largest continental shelves in the world.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: West Siberian sedimentary basin
Target entity description: The West Siberian sedimentary basin is a vast, low-lying geological basin in western Siberia that hosts some of the world’s largest oil and natural gas reserves.

A. West Siberian drainage basin
The West Siberian drainage basin is a vast hydrological region in western Siberia that collects and channels river systems toward the Arctic Ocean, including major rivers such as the Ob and its tributaries.
B. Makarov Basin
Makarov Basin is a deep, remote oceanic basin in the Arctic Ocean, situated between major underwater ridges and adjacent basins such as the Amundsen Basin.
C. Western Siberia
Western Siberia is a vast region of northern Asia characterized by extensive plains, taiga, and tundra, stretching from the Ural Mountains toward central Siberia and known for its harsh climate and significant natural resources.
D. Kuzbass coal basin
The Kuzbass coal basin is one of Russia’s largest and most important coal-mining regions, located in southwestern Siberia.
E. Siberian continental shelf
The Siberian continental shelf is an extensive, shallow underwater extension of the Siberian landmass in the Arctic Ocean, notable as one of the largest continental shelves in the world.
F. None of above. chosen