Cenozoic rifts and grabens

bay between Greenland and Canada

gulf of the Pacific Ocean on the coast of Mexico

sea

thumb|UNESCO World Heritage plaque Þingvellir (, anglicised as Thingvellir) was the site of the Alþing, the annual parliament of Iceland from the year 930 until the last session held at in 1798. Since 1881, the parliament has been located within Alþingishúsið in Iceland's capital, .

Atlantic Ocean tectonic plate boundary

lake in Inari, Finland

oceanic bay located in Southeast Brazil

depression

lake in Patagonia, between Argentina and Chile

large inlet in South Australia

rift

major rift valley in Germany

geographic region

physiographic region extending through much of the western United States and Mexico

a series of continental rifts centered beneath Lake Baikal in southeastern Russia

oceanic rift between the African and Arabian Plates

oilfield beneath Sirte province and the Gulf

series of rift valleys between East and West Antarctica

geological rifts by the Alps

plate tectonics & glaciation