Tag Archive for: geologic

Utah Geological Survey

New Geologic Maps of Southern Portions of the Uinta Mountains Now Available

Two new geologic maps near Vernal, Utah have been released. The Utah Geological Survey (UGS) recently published two 1:24,000-scale geologic maps covering a part of the south flank of the Uinta Mountains near Vernal. These maps provide data useful to consultants/land-use managers to address geologic hazard and resource issues; they will also be of interest to educators and others simply interested in learning about the fascinating geology of the Vernal area.

“The Dry Fork and Steinaker quadrangles contain some of the most scenic and geologically diverse landscapes in the southern Uintas,” said Doug Sprinkel, UGS geologist. “These quadrangles reflect that diversity and provide basic geologic information for the popular Steinaker Reservoir, the Red Cloud Loop Drive, and the spectacular Flaming Gorge-Uintas National Scenic Byway.”

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Utah Geological Survey

IS TAR SAND MINING VIABLE IN UTAH

newwest.net

Tar sands development often conjures images of a bleak northeast Alberta landscape, scraped and scalped of its vegetation after being converted to sprawling strip mines from which much of Canadian oil imports to the United States originate.

But if a proposal by Alberta-based Earth Energy Resources survives environmentalists’ appeal, eastern Utah’s canyon country could become a backdrop for the only tar sands mine in the United States.

In 2009, Utah mining regulators approved EER’s proposed PR Spring Mine on state institutional trust land in Uintah and Grand counties northwest of Grand Junction, Colo. If the mine is successful, it could prove the viability of a Utah tar sands industry, possibly bringing a new level of energy development to the Colorado Plateau.

Tar sand, also called oil sand, bituminous sand or asphaltic sandstone, is oil-laden sedimentary rock most commonly extracted in Canada. Utah’s tar sands, however, are generally half as rich as Canada’s and require more processing to extract the oil.

The U.S. Department of Energy estimates that Utah tar sands harbor between 12 billion and 19 billion barrels of oil, with at least 2 billion barrels to be found at PR Spring.

The push to develop tar sands in Utah is a fairly recent phenomenon.

Determined to find a way for American oil shale and tar sands to become sources of domestic energy production, Congress required the U.S. Department of Energy to start up a tar sands and oil shale leasing program as part of the 2005 Energy Policy Act.

In 2008, the DOE completed an environmental study of its tar sands and oil shale program, outlining 11 potential tar sands development areas in Utah, the only state in which tar sands are thought to be economically recoverable.

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Utah Geological Survey

MIDSIZE QUAKE HITS SOUTHWESTERN UTAH MONDAY MORNING

sltib.com

A 4.6 magnitude earthquake hit southwestern Utah early Monday morning.

The 5:06 a.m. quake could be felt in the sparsely populated area about eight miles northwest of Circleville and eight miles west of Junction. Several people called the Seismograph Stations at the University of Utah to report they experienced the pre-dawn shaking. No damage or injuries have been reported.

“It’s a moderate-sized earthquake, so we’re unlikely to have significant damage,” said Keith Koper, director of the U.’s Seismograph Stations. “But people will definitely be aware of it if they are relatively close to the epicenter.”

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Utah Geological Survey

PREPARE YOUR FAMILY FOR A DISASTER IN YOUR AREA

mormontimes.com

If highway construction projects have taught commuters anything, it’s that even a single lane restriction can bring traffic to a crawl. Now imagine the impact on your commute because of a unexpected force of nature — like a strong earthquake, a blizzard, flooding rains or a tornado.

Along Utah’s Wasatch front, a fault spans 240 miles, and 80 percent of Utah residents live along its path.

The Utah Geological Survey notes the fault “has the dubious distinction of being one of the longest and most active normal faults in the world.”

Other areas of the country are also near fault lines. And along the Wasatch fault, several dozen freeway overpasses cross the main corridors near which the fault travels.

Other areas are more prone to conditions that tornadoes form in. And others live in the paths of hurricanes. Still, blizzards, fires and other storms can prompt evacuations or paralyze an area.

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Utah Geological Survey

ANCIENT OWL'S MEALS OFFER CLUES TO CLIMATE CHANGE

sltrib.com

Homestead Cave is not much to look at, a modest opening in a knoll at the north end of Utah’s Lakeside Mountains. But it has yielded a paleontological jackpot for scientists reconstructing ancient Great Basin environments thanks to owls that spit up small-animal prey in the cave for thousands of years.

The piles of regurgitated pellets drew Dave Madsen in the early 1990s to this lonely spot on the Utah Test and Training Range west of the Great Salt Lake. Then with the Utah Geological Survey, Madsen and colleagues Don Grayson and Jack Broughton hoped the bones, known as “death assemblages,” would provide a record of the plants and animals that inhabited the surrounding area over the years.

What they found was scientific pay dirt that continues to yield dividends. Three years of excavation recovered undisturbed bones layered down at least 2 meters, representing what’s been on the owls’ menu for the past 13,000 years.

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Utah Geological Survey

REPORT WARNS OF SHRINKING AQUIFER WEST OF CEDAR CITY

sltrib.com

Just as a bank account dips when withdrawals exceed deposits, so the water table in the Cedar Valley Aquifer has been dropping over the past 70 years as discharge rates have exceeded recharge, and the losses likely will continue unless measures are taken to plug the problem.

That was the conclusion of a report delivered Thursday night to a meeting of the Central Iron County Water Conservancy District in Cedar City.

The report, compiled by senior geologist William Lund and his staff with the Utah Geological Survey (UGS), was commissioned by the conservancy district in 2009 after a ground fissure nearly 4 miles long was discovered snaking through a subdivision in the city of Enoch.

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Utah Geological Survey

Keeping Zion National Park Visitors Safe from Geologic Hazards

A new geologic-hazards investigation, published by the Utah Geological Survey, could help Zion National Park (ZNP) keep its 2.5 million annual visitors safe. The results of the investigation will provide the National Park Service (NPS) with geologic-hazard information for future park management.

Zion National Park is subject to a variety of geologic hazards that may affect park development and visitor safety. “One of the nation’s scenic jewels, Zion National Park, is also home to a variety of geologic hazards. By supporting this study of geologic hazards in high-use areas of the park, the National Park Service has taken a proactive approach to protecting visitor safety,” says William Lund, UGS Senior Geologist.

The ZNP geologic-hazards study area is a 154-square-mile area that encompasses Zion Canyon, Kolob Canyon, Kolob Terrace, the Zion-Mount Carmel Highway corridor, and all developed and high-use areas of the park. This investigation includes nine 1:24,000-scale geographic information system (GIS)-based maps that show areas subject to flooding, debris flows, rock fall, landslides, surface faulting, liquefaction, collapsible and expansive rocks and soils, and/or soil piping and erosion.

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Summary of 2009 Utah Mineral Released

Utah’s mineral extraction industry recorded a successful year on 2009, according to a recently released publication.

The Utah Geological Survey’s (UGS) 2009 Summary of Mineral Activity in Utah publication reveals that despite a recession induced dip from peak commodity values in 2008, Utah ranked third nationally in the value of nonfuel minerals produced in 2009, accounting for about 7% of the total value of U.S. production. Utah mines and energy companies produced a gross value of $6.97 billion in mineral and energy commodities in 2009 from oil gas (37%), base metals (31%), industrial minerals (14%), coal-uranium (9%), and precious metals (9%). All sectors suffered a dip from mid-2008, except for precious metals which expanded on higher prices.

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Utah Geological Survey

UTAH RANKED NO.3 NATIONALLY FOR MINERALS PRODUCTION

deseretnews.com

On the same day a group of lawmakers was pressed about the need to increase “mineral literacy” in Utah, a new report showed the state now ranks No. 3 in the nation for the value of non-fuel minerals produced in 2009.

Overall, Utah’s contribution was logged at 7 percent of the total value of the country’s production, according to a report issued Wednesday by the Utah Geological Survey.

It is the first time, Utah geologists believe, that the state has been able to edge out rival California, which has historically come in third behind Arizona and Nevada because of its production of industrial minerals for the construction industry.

“Because of the recession, California fell from three to four, and we moved up to three,” said Ken Krahulec, senior geologist with the Utah Geological Survey. “I would not be surprised if this was the first time ever. Historically, we are in the top 10, but I think four is as high as we have been before.”

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Utah Geological Survey

UTAHNS WARMING TO SOLAR ENERGY SYSTEMS

sltrib.com

nvironmentalists long have dreamed of a time when the massive coal-fired plants that generate much of the nation’s electricity will fall idle, replaced by small, nonpolluting power production on individual homes and businesses.

For a slowing growing number of Utahns that dream no longer seems so far-fetched.

When Doug Shipley of Intermountain Wind & Solar opens the power bill for his 2,400 square-foot home in Farmington, most of the time it shows he hasn’t taken any energy off of the state’s power grid during the month.

Instead, the 24 solar panels on his property — installed at a cost of approximately $24,000 — produce all the electricity his family needs.

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