Tag Archive for: geology

Rainbow Bridge National Monument, San Juan County, Utah
Photographer: Mike Hylland

Rainbow Bridge near Lake Powell, Rainbow Bridge National Monument, San Juan County, Utah.

Horseshoe Canyon Wilderness Study Area, Emery County, Utah
Photographer: Sonja Heuscher

Stream erosion during uplift of the Colorado Plateau incised the Green River channel deep into the Triassic–Jurassic-age Wingate Sandstone and underlying Chinle Formation. At Bowknot Bend, the channel turns back on itself in a huge meander loop.

Coral Pink Sand Dunes State Park, Kane County, Utah.
Photographer: Michael Vanden Berg

Large star dune in Coral Pink Sand Dunes State
Park, Kane County, Utah.

The UGS’s Martha Hayden, Don DeBlieux, and Jim Kirkland with their complimentary copies of the volume.

Following the 1996 establishment of the Grand Staircase–Escalante National Monument (GSENM), paleontological research in this largely unstudied region of the nation accelerated at a remarkable pace, thanks to an infusion of research dollars from the federal government. Much of this research centered on the Upper Cretaceous of the Kaiparowits Plateau, which is at the center of the most continuous belt of terrestrial Cretaceous rocks anywhere in North America. The Utah Geological Survey was in the thick of it with early general survey projects and the later, more focused, Wahweap Project in the southern Kaiparowits Plateau from 2001–2005, which resulted in the discovery of Diabloceratops eatoni. Additionally, significant funded projects were undertaken by the Museum of Northern Arizona and the Natural History Museum of Utah (NHMU).

The results of this burst of scientific exploration has now been summarized in the massive  volume “At the Top of the Grand Staircase: The Late Cretaceous of Southern Utah,” edited by the Alan L. Titus (GSENM) and Mark Loewen (NHMU), published just this past month by Indiana University Press. The 634-page book includes 28 chapters, starting with papers on the geology and sedimentology of the regions, followed by papers on the fossil plants, invertebrates, fish, amphibians, turtles, lizards, crocodilians, marine reptiles, and chapters on each major group of dinosaurs. The UGS’s Jim Kirkland, Don DeBlieux, and Martha Hayden just received their complimentary copies of the volume for their contributions and will be spending the rest of the year looking over this magnificent contribution to our knowledge of Utah’s geological and paleontological record.

nature.com

On Maine’s rugged coast, just north of the tourist town of Boothbay, an underground seismometer is listening for earthquakes. Engineers activated it on 26 September, completing the US$90-million Transportable Array, an ambitious effort to blanket the contiguous United States with a moveable grid of seismic monitors (see ‘On the march’).

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deseretnews.com

Weighing in at more than 2 tons and two dozen feet long, a new species of dinosaur related to Tyrannosaurus rex was fierce enough to be dubbed “King of Gore.” The discovery of “Lythronax argestes” at the Grand Staircase-Escalante National Monument in Utah was announced Wednesday at the Natural History Museum of Utah and coincides with the publication of a study in PLoS ONE, an open access scientific journal.

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sciencedaily.com

A remarkable new species of tyrannosaur has been unearthed in Grand Staircase-Escalante National Monument (GSENM), southern Utah. The huge carnivore inhabited Laramidia, a landmass formed on the western coast of a shallow sea that flooded the central region of North America, isolating western and eastern portions of the continent for millions of years during the Late Cretaceous Period, between 95-70 million years ago. The newly discovered dinosaur, belonging to the same evolutionary branch as the famous Tyrannosaurus rex, was announced today in the open-access scientific journal PLOS ONE and unveiled on exhibit in the Past Worlds Gallery at the Natural History Museum of Utah at the Rio Tinto Center in Salt Lake City, Utah.

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Coral Pink Sand Dunes State Park, Kane County, Utah.
Photographer: Michael Vanden Berg

Beetle on rippled dune face, Coral Pink Sand Dunes State Park, Kane County, Utah.

usu.edu

Utah State University’s Department of Geology announces the opening of a new museum on the school’s Logan campus, along with the return of the department’s popular ‘Rock and Fossil Day,’ Saturday, Nov. 9, from 10 a.m.-2 p.m.

All ages are invited to the free event, which features a variety of hands-on educational activities along with admission to museum exhibits.

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blogs.kqed.org

For something that is supposed to keep track of 4 billion years of history, the geologic time scale is quite a fuzzy and slippery yardstick. After two centuries of careful research and argumentation, the world’s geologists have only recently adopted a system to literally nail down the different time periods taught in geology school. Last week that project took another slow step forward as a “golden spike” was officially driven into a precise spot on the ground near Pueblo, Colorado, a benchmark for the beginning of the Turonian Age.

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