Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"lava dams"”.
-
Lacustrine Sediment Record of Multiple Quaternary Lava Dams on the Owyhee River, Southeastern Oregon
<p>Multiple lava dams and correlating lakes impacted the Quaternary evolution of the Owyhee River. Sediment records from lava-dammed lakes were investigated to understand effects of the West Crater (WC) lava dam (~70 ka), the Saddle Butte 2 lava dam (~144 ka), and the Bogus Rim lava dam (~1.9 Ma). …
-
Neotectonic evolution of Grand Canyon : interaction between volcanism, river incision, epeirogenic uplift, and faulting
… sequence, and structure of Grand Canyon's lava dams. Associated gravel deposits, internal cooling structures, and a general lack of lacustrine deposits suggests that the dams were removed in multiple stages and probably did not last for more than a few hundred to thousand years. Perched …
-
Identification, Mapping, Analysis, and Dating of Composite Mega Landslides in the Colorado Plateau
… landslide. The saturation of slopes caused by lava dams in the western Grand Canyon and other landslide dams likely played a role. The rapid drawdown conditions/pore pressure imbalances caused when the dams breached catastrophically, and their reservoirs drained likely served as a trigger. …
-
Fluvial Response to Intra-Canyon Lava Flows, Owyhee River, Southeastern Oregon
<p>At least six lava flows have entered the Owyhee River Canyon north of Rome, Oregon, since the Pliocene and directly impacted the Owyhee River. The effects on the river of the two youngest lava flows, the West Crater (60–80 ka) and Saddle Butte (> 60–90 ka), are readily apparent. These two lava …