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Tag Archives: Geology

Mississippian Marble

11 Saturday Jan 2020

Posted by Jacob Barlow in Uncategorized

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Tags

Big Cottonwood Canyon, Geology, Salt Lake County, utah

Mississippian Marble

The white rock on both sides of the road is a Mississippian limestone which has been recrystallized to marble and then bleached.

Due to the upstream tilt of the beds, the narrowness of the canyon at this point and the strength of the marble below the surface, this spot has been chosen for the site of the proposed Argenta Dam.

Related Posts:

  • Big Cottonwood Canyon

Also located here is a triple historic marker talking about the Blind Miner of the Wasatch, the Big Cottonwood Mining District and Clues – Frozen in Stone.

Meeting of the Glaciers

15 Sunday Dec 2019

Posted by Jacob Barlow in Uncategorized

≈ 1 Comment

Tags

Big Cottonwood Canyon, Geology, Salt Lake County, utah

Meeting of the Glaciers

A small, vigorous glacier coming down Mill D South Fork met the larger sluggish glacier from the main canyon and the two wedged together and stagnated at this point.

The low smooth hill over your left shoulder, is a terminal moraine made up of rock debris deposited by the glaciers.

The L-shaped canyon above is a typical glaciated valley, contrast this with the V-shaped, stream cut canyon below.

Related Posts:

  • Big Cottonwood Canyon

Artesian Well Park

11 Monday Dec 2017

Posted by Jacob Barlow in Uncategorized

≈ 1 Comment

Tags

Geology, historic, Parks, Salt Lake City, Salt Lake County, utah, Wells

  • 2017-12-09 15.34.19

Artesian Well Park in Salt Lake City is a small urban park that contains a natural artesian spring fed by an underground aquifer. It occupies a quarter acre on the southwest corner of the intersection between 800 South and 500 East. People from all over the surrounding area have been coming to get water for free from this spring for over 100 years.

Related posts:

  • Salt Lake Parks
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April 2020 – They are renovating the park.

While pulling granite from a quarry in Little Cottonwood Canyon, early Mormon settlers and their oxen stopped on this site to imbibe the refreshing water.

The settlers have long since passed, but the temple still stands, the water still runs, and the settlers’ offspring – and many others – still linger here to rest and refresh themselves.

This is an artesian well. Artesian water is water held in a porous rock layer, under a small amount of pressure, between two solid rock layers. An artesian well is different from an artesian spring in that its water doesn’t surface through a natural opening; instead, a pipe must be put into the ground. The fact that the water flows through the pipe, under natural pressure, without pumping, makes artesian well different from other wells.

This artesian well taps into an aquifer whose recharge area extends from Red Butte Creek underneath the University of Utah. Much of the allure of this site is its natural water with high mineral content and few chemicals.

Photos from a 2021 visit:

Hassayampa River Riparian Area

20 Thursday Jul 2017

Posted by Jacob Barlow in Uncategorized

≈ 2 Comments

Tags

Arizona, Geology, Maricopa County, Preserves, Rest Areas, Riparian, Wickenburg

2017-06-08 15.20.05

The Hassayampa River Riparian Area or Hassayampa River Preserve is a highway rest area just south of Wickenburg, Arizona.

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Rock Canyon Centennial Interpretive Center

25 Sunday Jun 2017

Posted by Jacob Barlow in Uncategorized

≈ 2 Comments

Tags

Geological, Geology, Parks, Provo, Rock Canyon, Trailheads, Trails, utah, utah county

2017-05-21 13.34.23

Rock Canyon Centennial Interpretive Center – Rock Canyon Trailhead

This is a popular parking lot for the constant stream of hikers going up Rock Canyon but there are also interesting interpretive signs, an amphitheater, pavilion and bathrooms.

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Mexican Hat Rock

19 Wednesday Apr 2017

Posted by Jacob Barlow in Uncategorized

≈ 1 Comment

Tags

Geologic, Geological, Geology, Halchita, Mexican Hat, Monument Valley, Rock Formations, San Juan County, utah

2017-03-12 14.46.59

The name “Mexican Hat” comes from a curiously sombrero-shaped, 60-foot  wide by 12-foot thick, rock outcropping on the northeast edge of town. The “Hat”‘ has two rock climbing routes ascending it. It has frequently been noted on lists of unusual place names.

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Hogback

08 Sunday Jan 2017

Posted by Jacob Barlow in Uncategorized

≈ 1 Comment

Tags

Geologic, Geological, Geology, New Mexico, San Juan County

picture20sep08-077

Hogback

Steeply dipping strata define the western edge of the San Juan basin.  To the west older geologic formations are exposed toward the Defiance uplift whereas basinward they are they are downwarped thousands of feet beneath younger rock units.  Vast coal, uranium, oil and gas resources occur in the strata buried within the basin.

Elevation 5,050 feet.

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G.K. Gilbert Geologic View Park

23 Sunday Oct 2016

Posted by Jacob Barlow in Uncategorized

≈ 1 Comment

Tags

Bells Canyon, Big Cottonwood Canyon, Geologic, Geological, Geology, Glaciers, Lake Bonneville, Little Cottonwood Canyon, Salt Lake County, Salt Lake County Parks, Sandy

2019-09-30 16.00.38

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Grove Karl Gilbert (1843-1918) is considered one of the greatest American geologists, having pioneered many theories in the earth sciences.  In the late 1800s and early 1900s, Gilbert advanced concepts of mountain building, fault scarps, earthquake probabilities, and lake cycles that have withstood the test of time and are still used today.  Furthermore, Gilbert applied science toward promoting public welfare by advocating the need for evaluation of risks and public disclosure of geologic hazards.

Utah was one of Gilbert’s favorite study areas where he formulated many of his theories.  He spent much time at this particular location and was the first to establish that Little Cottonwood Canyon and Bells Canyon glaciers descended as far as the shoreline of ancient Lake Bonneville.  Gilbert was also the first person to recognize the earthquake hazard posed by the Wasatch fault.

Related Posts:

  • Little Cottonwood Rocks
  • Salt Lake County Parks

The Sands of Time

12 Wednesday Oct 2016

Posted by Jacob Barlow in Uncategorized

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Tags

Emery County, Geologic, Geological, Geology, San Rafael Swell, San Rafeal Swell, utah

  • picture18apr08-017

As you stand here look around, the magnificent cliffs, canyons, knobs, and spires before you are mostly cut from the 190 million-year-old Navajo Sandstone formation. Imagine the winds that carried sand to this area and deposited it in sand dunes hundreds of feet high. As wind shifted the massive sand dunes, the sands were deposited in a whirl of layers. Buried over eons of geologic time, the sands ceased their movement and turned to stone. Water releases the grains of sand from the grip of stone. Even here in an arid climate, water is the prime agent sculpting the stone into canyons, arches, and pinnacles. You are near the center of the great anticline that is the San Rafael Swell. Here, the layers are nearly flat-lying. It is like a stone dome with the curved top worn away. Soon the layers will begin tilting gently to the west.

(Located at the Ghost Rock Westbound View Area on I-70)

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Wetumpka Impact Crater

11 Sunday Sep 2016

Posted by Jacob Barlow in Uncategorized

≈ 1 Comment

Tags

Alabama, Craters, Elmore County, Geologic, Geological, Geology, Wetumpka

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    N 32.53417 W 86.20367

The Wetumpka Impact Crater is the only confirmed meteorite crater in Alabama, United States. It is located east of downtown Wetumpka in Elmore County, Alabama. The crater is 7.6 km in diameter and its age is estimated to be about 83 million years (Cretaceous) old based on fossils found in the youngest disturbed deposits, which belong to the Mooreville Chalk. The crater is well preserved, including the original impact rim and breccia, but exposures are few owing to plant and soil cover, and nearly all are on private land. Thornton L. Neathery discovered the Wetumpka Crater in 1969-70 during regional geological mapping and published the first article on the subject in 1976. However, conclusive evidence of impact origin was lacking until 1998 when David T. King, Jr. and colleagues discovered shocked quartz in a core drilled near the center of the structure. In 2002, Christian Koeberl with the Institute of Geochemistry University of Vienna published evidence and established the site as an internationally recognized impact crater.

Each year, the city of Wetumpka sponsors annual ‘crater tours’ for the public in cooperation with local landowners and authorities. In March 2007, the Geological Society of America sponsored an international field forum for impact geologists led by David T. King, Jr. and Jens Ormö.

In May of 2007, Auburn University graduate student Reuben Johnson earned his master’s degree studying the impact crater. This work added to a growing body of evidence that Wetumpka’s crystalline “rim” may instead mark the edge of a deep central basin within what was originally a much larger impact crater that has since been almost completely eroded away.

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