POTD June 20, 2017: Fremont petroglyphs.

Fremont petroglyphs
Photographer: Charles Bishop © 2017
At the mouth of Cottonwood Canyon, Fremont petroglyphs in the Northern San Rafael Style depict a hunting scene. The figures are etched into sandstone of the Green River Formation, and derive their contrast from the dark, weathered patina developed on the light-colored rock.

Take in spectacular scenery at Red Fleet State Park

good4utah.com

The Good4Utah Road Tour rolled into Vernal Wednesday. In this town, you can find something to do rain or shine. At the indoor Utah Field House Museum, you’ll find amazing state history, but when the sun is shining, Red Fleet State Park is the place to be.

READ MORE

Discover the prehistoric world at Utah Field House State Park

good4utah.com

The Good4Utah Road Tour heads to eastern Utah and sets up shop in Vernal! The Utah Field House State Park strives to keep collectibles local and give you a glimpse back to prehistoric times.

READ MORE

POTD June 06, 2017: Gandy Salt Marsh, Millard County

Gandy Salt Marsh, Millard County
Photographer: Rich Emerson © 2017
With the Deep Creek Mountains on the horizon, lush vegetation thrives in spring-fed wetlands that create an oasis in the middle of arid Snake Valley. Hundreds of springs and seeps in the valley provide habitat for many unique species of plants and animals.

POTD May 30, 2017: Caineville Badlands, Wayne County

Caineville Badlands, Wayne County
Photographer: Gregg Beukelman © 2017
The view from North Caineville Mesa reveals convoluted patterns eroded into the Blue Gate Member of the Cretaceous-age Mancos Shale. The reddish deposits are remnants of a landslide sourced from the Emery Sandstone Member of the Mancos Shale.

POTD May 25, 2017: Bryce Canyon National Park

Bryce Canyon National Park
Photographer: Grant Willis © 2017
Bryce Canyon National Park is actually a plateau-edge escarpment carved into the Claron Formation, estimated to be eroding back at the phenomenal rate of as much as 4 feet per century. The orange colors are due to varying amounts of iron oxide minerals that stain calcareous (limey) ancient soil, lake, marsh, and floodplain deposits of the Claron Formation.

POTD May 16, 2017: Little Cottonwood Canyon, Wasatch Range

Little Cottonwood Canyon, Wasatch Range
Photographer: Michael Vanden Berg © 2017
Alpine wildflowers color the slopes of Albion Basin at the head of Little Cottonwood Canyon. The 11,000-foot-high peaks of the central Wasatch Range owe their height to vertical movement on the Wasatch fault over the past 15 million years.

 

The Gothic Shale of the Pennsylvanian Paradox Formation, Greater Aneth Field (Aneth Unit), Southeastern Utah: Seal for Hydrocarbons and Carbon Dioxide

NEW PUBLICATION

The Gothic Shale of the Pennsylvanian Paradox Formation, Greater Aneth Field (Aneth Unit), Southeastern Utah: Seal for Hydrocarbons and Carbon Dioxide
By: Jason E. Heath, Thomas A. Dewers, Thomas C. Chidsey, Jr., Stephanie M. Carney, and S. Robert Bereskin

Greater Aneth oil field, Utah’s largest oil producer, has produced over 483 million barrels of oil. Located in the Paradox Basin of southeastern Utah, Greater Aneth is a stratigraphic trap producing from the Pennsylvanian Paradox Formation. Because Greater Aneth is a mature, major oil field in the western U.S., and has a large carbonate reservoir, it was selected to demonstrate combined enhanced oil recovery and carbon dioxide (CO2) storage. The Gothic shale seals the underlying Desert Creek oil reservoir, both in the Paradox Formation. Within the Aneth Unit in the northwestern part of the field, the Gothic is remarkably uniform, consisting of 7 to 26 feet (2–8 m) of black to gray, laminated to thin-bedded, dolomitic marine shale.

This 31-page Miscellaneous Publication is a detailed evaluation of the Gothic seal in the Aneth Unit and its effectiveness at supporting large CO2 and hydrocarbon columns in the Desert Creek reservoir below. This study includes geochemical, petrological, petrophysical, and geomechanical analyses that determined (1) the geologic controls on sealing effeciency, (2) effects of pressure changes on the seal due to CO2 injection and storage, and (3) possible chemical interaction between CO2 and the seal at its contact with the reservoir through time.

GET IT HERE: