|
gptkbp:instanceOf
|
river
|
|
gptkbp:age
|
approximately 1.1 billion years
|
|
gptkbp:associatedWith
|
volcanic activity
sedimentary basins
|
|
gptkbp:composedOf
|
igneous rocks
metamorphic rocks
|
|
gptkbp:contains
|
copper deposits
nickel deposits
platinum deposits
|
|
gptkbp:expansion
|
gptkb:Lake_Superior
gptkb:Kansas
|
|
gptkbp:hasImpactOn
|
land use
local ecosystems
water resources
|
|
gptkbp:hasRecognition
|
mineral exploration
geological studies
paleomagnetic studies
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Midcontinent Rift System
|
|
gptkbp:influences
|
regional geology
|
|
gptkbp:isCharacterizedBy
|
rift valleys
sedimentary rock layers
basaltic lava flows
fault systems
|
|
gptkbp:isConnectedTo
|
gptkb:Canada
gptkb:Illinois
gptkb:Indiana
gptkb:Michigan
gptkb:Minnesota
gptkb:Missouri
gptkb:Nebraska
gptkb:North_Dakota
gptkb:Ohio
gptkb:South_Dakota
gptkb:Wisconsin
gptkb:Iowa
gptkb:Keweenaw_Peninsula
|
|
gptkbp:isPartOf
|
gptkb:North_American_Craton
Midcontinent Rift
|
|
gptkbp:isRelatedTo
|
gptkb:Lake_Huron
gptkb:Lake_Michigan
gptkb:Lake_Erie
gptkb:Great_Lakes
gptkb:Lake_Ontario
|
|
gptkbp:isStudiedIn
|
geologists
geophysicists
geochemists
|
|
gptkbp:length
|
over 2,000 kilometers
|
|
gptkbp:locatedIn
|
gptkb:North_America
19th century
|