What are Moqui Marbles? Moqui marbles are small, brownish-black balls composed of iron oxide and sandstone that formed underground when iron minerals precipitated from flowing groundwater. They occur in many places in southern Utah either embedded in or gathered loosely into “puddles” on the ground near outcrops of Jurassic age Navajo Sandstone.
Nestled in south-central Utah is a remote mountain range which epitomizes an entire era of unique volcanism in Utah and was one of the last mountain ranges in the United States to be fully explored and mapped. In fact, these intrusive volcanic mountains were the last mountain range in the United States to be named. It wasn’t until 1872 that the range was named and still three years later when the mountains were finally explored by the great American geologist G.K. Gilbert who first wrote about the incredibly unique geology of the Henry Mountains
The Wasatch Plateau is located south and east of the southernmost part of the Wasatch Range in central Utah and is in the transition zone between the Colorado Plateau and the Basin and Range physiographic provinces. The plateau is a table-like mountain range with an abundance of lakes and reservoirs along its axis. These many lakes and reservoirs are the result of three very different geological processes that continue to shape the area.
Utah’s Colorado Plateau is famous for its striking vistas and dazzling colors. Hues of red, pink, maroon, yellow, brown, and white create an array of stunning rock colors that attract visitors from all over the globe. From the red rocks of the Navajo Sandstone to the Vermilion Cliffs of the Moenave and Kayenta Formations to the pink, crimson, and chocolate cliffs of the upper Grand Staircase, many who visit the Colorado Plateau wonder what gives the rocks their brilliant colors.
Introduction Although my degree is in geology & geophysics, and not nuclear or astrophysics, I’v always had a keen interest in physics and would love to go back to school one day and get a graduate degree somewhere in that field. My advanced physics, geochronology and geophysics classes in college really interested and excited me. At just the age […]
This is one of those things that once you see, you can’t un-see. . Introduction to the New Theory It was during my undergraduate or graduate work toward my degree in geology and geophysics that I first noticed that the majority of Northern Russia, Siberia and Northern Alaska were never fully glaciated during recent Ice […]
Tourists and geologists alike come from all over the world to see and study the magnificent exposures of geologic units displayed in Utah’s Colorado Plateau region. Of particular interest is the Grand Staircase, which is an immense sequence of sedimentary rock layers that stretches south from Bryce Canyon National Park and Grand Staircase–Escalante National Monument […]
When most people think about geysers, they picture a Yellowstone- like hot spring where pressure from steam sends a tall column of water into the air. In Utah, however, several “geysers” erupt due to the same process that causes soda pop to shoot out of the can when you hold your finger over t he […]
Although the geology of the Zion National Park includes nine known exposed formations, Zion is predominately the result of one spectacular unit, the Navajo Sandstone. Zion’s formations represent about 150 million years of mostly Mesozoic-aged sedimentation in a large ancient Jurassic basin. The Navajo is part of a super-sequence of rock units called the Grand Staircase, the time exposed […]
