Skip to main content

Flume – Low head dam installation effects on coarse sediment transport | SERC media

Geomorpholgy of a river: What happens when you install a dam and how the sediment transport changes.

Geology | Minnesota River Basin Data Center | #MN #glacial #geology #landscape #videos

An "Ask an Expert" page listing 10 short videos of the geology of the Minnesota River Basin by Dr. Carrie Jennings, a glacial geologist for the Minnesota Department of Natural Resources. Topics include: Story of Lake Aggasiz and Glacial River Warren; geology and water quality; some of Earth's oldest rocks; What is a glacial moraine?; and the bend in the Minnesota River Valley. Additional resource links to: 360 panoramic view; flash animations on MN glaciation and River Warren and valley formation; and a pdf on a DNR excerpt on the Geology of the Minnesota River Basin.

Major bonebeds in mudrocks of the Morrison Formation (Upper Jurassic), northern Colorado Plateau of Utah and Colorado | Geology of the Intermountain West

Download PDF field guide by John Foster et. al. The Morrison Formation contains a number of large quarries that have yielded dinosaurs and other vertebrates, and many of these occur in sandstone beds representing ancient river channels. However, a number of very productive sites occur in mudstone beds representing other environments such as ephemeral ponds, and some of these yield both large dinosaurs and microvertebrates; these localities in mudstone beds represent different taphonomic modes of preservation and often preserve vertebrate taxa in different relative abundances from the channel sandstone sites. Among these important and very productive mudstone localities are the Cleveland-Lloyd Quarry, the Mygatt-Moore Quarry, and the microvertebrate sites of the Fruita Paleontological Area, and each of these preserves distinct vertebrate paleofaunas, different from sandstone sites and from each other, suggesting that mudstone localities had a very different mode of sampling the local biotas than did sites in sandstone.

A Mississippi River Journey—Headwaters to Delta—in five minutes

1 min read

John Shepherd, the Associate Director of Center for Global Environmental Educaton, Hamline University, has a post which may be of interest whether you are a river rat or not. In conjunction with his work at the center, John just completed a month-long trip from the headwaters to the delta of the Mississippi. His blog post includes this highlight reel.