Insect fossils in core retrieved from Green River Formation, Utah
Photographer: Michael Vanden Berg; © 2011
Insect fossils preserved in core retrieved from the lake-deposited Green River Formation.
Tag Archive for: utah
Uinta Basin, Uintah County, Utah
Photographer: Michael Vanden Berg
The Mahogany oil shale zone contains the highest percentage of organic material in the Green River Formation, Uinta Basin, Uintah County.
stgeorgeutah.com
Lowering oneself down into a dark cavern, crawling and climbing over rocks, and slinking through narrow openings and over damp, cold slippery rocks is all part of the Bloomington Cave experience. The cave sits on the eastern slope of the Beaver Dam Mountains, approximately 15 miles west of St. George, it is managed by the Bureau of Land Management and is open to the public to explore on a permit basis.
Eastern Uinta Basin, Uintah County, Utah
Photographer: Michael Vanden Berg
Retrieving oil shale core from the Tertiary-age Green River Formation, eastern Uinta Basin, south of Bonanza near Evacuation Creek, Uintah County.
sunews.net
Come join Dr. Alan Titus as he gives a personal introduction of Grand Staircase-Escalante National Monument’s newest dinosaur on Friday, February 7, at the GSENM Kanab Visitor Center starting at 7 p.m. The presentation is free and open to the public.
Well we hope your January has really rocked! And on that note— it’s another great Thursday. Time for another round of “Spot the Rock”! Let us know where you think this geologic site is found.
Down and down it goes, where it stops, no body knows! Tell where this stuff flows!
Like us on FACEBOOK or follow us on TWITTER to participate in “Spot the Rock”!
UPDATE: Location Revealed
Last week’s “Spot the Rock” photo shows natural oil seeps (black) and salt (white) at Rozel Point about ½ mile southeast of the Spiral Jetty on the shore of Great Salt Lake, Box Elder County. Miocene to Pliocene (24 to 1.8 million years old) organic-rich lake sediments probably generated the oil. From these source beds, the oil migrated upward along faults and fractures to a porous basalt layer that comprises a main reservoir. Some of the oil in this basalt reservoir leaks to the surface through faults and fractures, emerging as thick, sticky, tar-like oil.
Rozel Point is one of the oldest (if not the oldest) fields to produce oil in Utah. The seeps have been known since the late 1800s and production attempts began in 1904. The field produced an estimated 10,000 barrels of oil from 30 to 50 wells, but has been inactive since the mid-1980s due to extremely difficult production, very high refining costs, and rising lake levels.
By: Charles G. Oviatt and Barbara P. Nash
The Pony Express basaltic ash is locally a useful stratigraphic marker in Lake Bonneville sediments in west-central Utah. The ash was erupted from a vent in the Sevier Desert basin soon after Lake Bonneville had transgressed high enough to flood into the basin about 24,000 years ago. The ash is found at or near the base of the Bonneville marl below altitudes of 1400m (4600 ft) in part of the Sevier Desert basin and the southernmost part of the Great Salt Lake basin. The chemical composition of the ash is similar to that of other basalts in the Sevier Desert. Possible source vents are in the Pahvant Butte area or a maar near Smelter Knolls.
This CD contains a 10-page report in PDF format. The latest version of Adobe Reader is required to view the PDF files.
By: Peter D. Rowley, Robert F. Biek, Edward G. Sable, Jonathan T. Boswell, Garrett S. Vice, Stanley C. Hatfield, David J. Maxwell, and John J. Anderson
The Brian Head Quadrangle straddles the west edge of the Markagunt Plateau and is roughly centered on Brian Head Peak, at 11,307 feet (3446 m) the highest mountain in southwestern Utah. The peak, encompassing an area of great natural beauty and recreational use, is capped by volcanic rocks that erupted from calderas on the Utah-Nevada border. These volcanic rocks overlie landslide-prone local volcaniclastic strata, which in turn overlie colorful strata of the Claron Formation, centerpiece of Cedar Breaks National Monument in the southwest corner of the map area. The plateau is capped by remnants of the 20-million-year-old Markagunt Megabreccia, Utah’s largest catastrophic gravity slide.
This CD contains geographic information system (GIS) files in ESRI file geodatabase and shapefile formats. Two plates, a geologic map at 1:24,000 scale and an explanation plate, and a 38-page booklet are also included in PDF format. The latest version of Adobe Reader is required to view the PDF files.
Uinta Basin, Uintah County, Utah
Photographer: Michael Vanden Berg
The exceedingly rare Graham’s penstemon grows exclusively on the sparsely vegetated outcrops of Green River Formation oil shale deposits and can be found only in the Uinta Basin of Utah and the Piceance Creek Basin in Colorado. Federal protection for this scarce plant could be forthcoming as petroleum development becomes more prevalent in the basin.
stgeorgeutah.com
A swarm, or cluster, of 24 earthquakes have been recorded Tuesday, the first about 37 miles west-northwest of St. George in Nevada, and the others within about a 10-mile radius of the first, see map inset. The earthquakes have ranged from local magnitude 4.1 at both 8:20 a.m. PST and 6:30 p.m. PST, and various lesser amounts throughout the day with the most recent registering local magnitude 3.2 at 6:38 p.m. PST.
And another great article on Utah quakes and other worldly shakes—
decodedscience.com
Nevada and Utah Earthquakes; Greece, Mid-Atlantic Tremors: January 2014
The world seemed to wake up this week, seismically speaking.
LEARN MORE ABOUT THE UTAH GEOLOGICAL SURVEY
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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