Wells Creek Volcanic Member

cliffs

These Middle Jurassic island arc rocks [of the Wells Creek Volcanic Member] form steep yellowish cliffs along the Mount Baker Highway (Route 542) just east of the Excelsior Pass trailhead, where they crowd the highway against the deep gorge of the North Fork Nooksack River.

geological member of

Nooksack Formation

horizontal bands

With decent light, you will see thin dark horizontal bands in the gray rock between the splits of the [Nooksack] falls. These are minerals or perhaps tiny vesicles aligned during flow of this lava 180 million years ago [Jurassic period].

location

The Wells Creek Volcanic Member of the Nooksack Formation (Tabor and others, 2003; see refs below) is found in the vicinity of Nooksack Falls, east of Glacier, Washington.

namesake of

Wells Creek

northwest geology field trips

Field trip to the Wells Creek volcanics, North Fork Nooksack River (nwgeology.wordpress.com) The Wells Creek Volcanic Member of the Nooksack Formation (Tabor and others, 2003; see refs below) is found in the vicinity of Nooksack Falls, east of Glacier, Washington. These Middle Jurassic island arc rocks form steep yellowish cliffs along the Mount Baker Highway (Route 542) just east of the Excelsior Pass trailhead, where they crowd the highway against the deep gorge of the North Fork Nooksack River…

random

Betelgeuse

tags

geological member