Portland Basin (geology)
http://dbpedia.org/resource/Portland_Basin_(geology) an entity of type: WikicatStructuralBasinsOfTheUnitedStates
The Portland Basin is a roughly 770-square-mile (2,000 km2) topographic and structural depression in the central -. The Portland Basin isapproximately 40 miles (64 km) long and 20 miles (32 km) wide, with its long axis oriented northwest. Studies indicate that as much as 1,800 feet (550 m) of late Miocene and younger sediments have accumulated in the deepest part of the basin near Vancouver. Most of the basin-fill material was carried in from the east by the Columbia River.
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Portland Basin (geology)
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13307956
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814148471
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The Portland Basin is a roughly 770-square-mile (2,000 km2) topographic and structural depression in the central -. The Portland Basin isapproximately 40 miles (64 km) long and 20 miles (32 km) wide, with its long axis oriented northwest. Studies indicate that as much as 1,800 feet (550 m) of late Miocene and younger sediments have accumulated in the deepest part of the basin near Vancouver. Most of the basin-fill material was carried in from the east by the Columbia River.
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1541