The Cockscomb, Grand Staircase–Escalante National Monument, Kane County, Utah
Photographer: Stevie Emerson; © 2012
The Cockscomb formed along the steeply tilted sedimentary layers of a geologic feature known as the East Kaibab monocline. Faulting and erosion have shaped the tilted Jurassic and Cretaceous-age rocks into the spectacular “rooster’s comb” features seen today along Cottonwood Canyon Road.
Who’s ready to get back out into that beautiful Utah Spring scenery?
Scudder Lake, Uinta Mountains, Duchesne County, Utah
Photographer: Ken Krahulec; © 2012
Scudder Lake in the glaciated Uinta Mountains, Duchesne County.
Have a fun weekend, everyone!
Skyline Drive, Wasatch Plateau, Sanpete County, Utah
Photographer: Rich Emerson; © 2012
At 10,133 feet, winter clings to outcrops of the Tertiary-age Flagstaff Limestone near the crest of the Wasatch Plateau at Snow Lake. The steep, forested slope to the left (east) of the lake is a scarp associated with one of several faults forming a down-dropped crustal block called the Snow Lake graben.
Here are several more articles about the UGS rockfall investigation, including our own news release with links to the published report.
kcsg.com
Residents living within high rock-fall-hazard zones in Rockville, Utah, face the possible consequences of a large rock fall similar to the fatal event that occurred last December. That is the principle finding of a geologic investigation into the rock fall that killed two people on December 12, 2013. That afternoon, a huge, joint-controlled rock mass, with an estimated volume of almost 1,400 cubic yards and weighing about 2,700 tons, detached from the cliff face at the top of the Rockville Bench, near Zion National Park. The rock mass fell onto the steep slope below the cliff, and shattered into numerous fragments. The rock fall debris then moved rapidly downslope before striking and destroying a house, detached garage, and a car. The largest boulder to strike the house weighed an estimated 520 tons.
Hands down, Utah’s geologic beauties rock!
White Rim Trail, San Juan County, Utah
Photographer: Don DeBlieux; © 2012
Sandstone buttes and mesas along the White Rim Trail, San Juan County.
ironcountytoday.com
Cracks in the earth and settling of the ground in areas of the Cedar Valley, both believed to be caused by over-pumping of the underground aquifer, were the focus of a special Central Iron County Water Conservancy District work meeting March 27.
Watch these interviews featuring one of our geologists, Tyler Knudsen, talk about the ground fissures and their causes.
fox13now.com
Giant cracks running through an Iron County subdivision are the result of drawing too much water from the ground, according to a new state report.
Report: Cedar Valley Ground Slowly Sinking
kutv.com
A new report from the Utah Geological Survey shows that the ground in Iron County’s Cedar Valley is slowly sinking due to groundwater pumping.
This scenery is no April Fools’—have a great afternoon!
Canyonlands National Park, San Juan County, Utah
Photographer: Don DeBlieux; © 2012
Water from a recent storm fills shallow pools on the Permian-age White Rim Sandstone near the White Rim Trail. The trail traverses a broad bench formed by the resistant sandstone above the confluence of the Green and Colorado Rivers.
deseretnews.com
Over-pumping of groundwater from a deep aquifer in Cedar Valley for the past three decades has caused the ground to sink and crack, inflicting damage on a would-be subdivision and putting future development at risk.
Read further in this article from KCSG Television
Land Subsidence and Earth Fissures in Cedar Valley, Iron County, Utah
kcsg.com
A just-released report from the Utah Geological Survey (UGS) shows the ground has been sinking in some areas around Cedar City for decades. The comprehensive 116-page report presents the results of an investigation of land subsidence and earth fissures in Cedar Valley, Iron County, Utah, primarily due to groundwater pumping. “The sediments in the Cedar Valley that form the groundwater aquifer contain a significant amount of fine-grained silt and clay sediments. Those sediments become compacted when water is removed and the ground begins to sink,” said Tyler Knudsen, UGS project geologist.
The Utah Geological Survey (UGS) is a division of the Utah Department of Natural Resources. Several specialized programs comprise the UGS: Data Management, Energy & Minerals, Geologic Hazards, Geologic Information & Outreach, Geologic Mapping, Groundwater & Wetlands, and Paleontology.
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