Columbia River Flood Basalt (Miocene, ~15-17 Ma; Pacific Northwest, USA) by James St. John ● portfotolio

James St. John: Basalt cobble beach (Pacific shoreline, Yaquina Head, Oregon, USA) 18

James St. John: Basalt cobble beach (Pacific shoreline, Yaquina Head, Oregon, USA) 19

James St. John: Basalt cobble beach (Pacific shoreline, Yaquina Head, Oregon, USA) 20

James St. John: Basalt cobble beach (Pacific shoreline, Yaquina Head, Oregon, USA) 21

James St. John: Basalt breccia clast (Pacific shoreline, Yaquina Head, Oregon, USA)

James St. John: Columbia River Gorge (Washington State, USA) 2

James St. John: Columbia River Gorge (Washington State, USA) 3

James St. John: Columbia River Gorge (Washington State, USA) 4

James St. John: Columbia River Gorge (Washington State, USA) 7

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 1

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 2

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 3

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 4

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 5

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 6

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 7

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 8

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 9

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 10

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 11

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 12

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 13

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 14

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 15

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 16

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 17

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 18

James St. John: Columnar-jointed basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA) 19

James St. John: Basalt (Columbia River Flood Basalt, Miocene, ~15-17 Ma; Mud Hollow, Oregon, USA)

James St. John: Basalt gravel in tidal pool (Yaquina Head, Oregon, USA)