Geology of the Northern Great Basin

Geology of the Northern Great Basin

September 25-30, 2019-Ever wonder how the landscape of Harney County came to be? Check out the schedule for Geology of the Northern Great Basin hosted by Michael Cummings.

Michael is a retired Professor of Geology from Portland State University and has a long history with Malheur Field Station. He has been leading university and general-interest geology trips in Northern Great Basin for decades.

September 25
The six-night class begins after settling into your lodging and having dinner with Michael Cummings, PhD. After dinner, there’s an introductory session on geology of the northern Great Basin.

September 26
Interpreting across scale: Hike to top of South Coyote Butte for Interpreting across time: How does the landscape change through time?
Evening session: How do we integrate time, scale, and process when we interpret the evolution of a landscape?

September 27
Visit the Northern fringe of the Harney basin. Welded tuffs: welding zones, structure, sources, interpreting accreted terrains – the old rocks.
Evening session: Hydrogeology of the Harney basin – an ongoing study.

September 28
South of the Field Station: Interpreting volcanic contributions to sedimentary environments and Hydrogeology of the Blitzen River.
Evening session: Integrating time, scale, and process in modern landscapes

September 29
Long day! Explore the areas surrounding Steens Mountain; Fault block mountains, Crustal extension and geothermal systems including the Alvord Desert and Catlow Valley.
No evening session

September 30
Exploring Steen Mountain – Steens Basalt and the Columbia River Basalt Group.
Evening session: Miocene evolution of the Columbia River Basalt Group and associated rhyolites.

October 1
Breakfast and departure.

Mosquito Population
low > medium > high 0%



Malheur Field Station