Taking a Look at the Yucca Mountain

The oldest rocks found in the Death Valley region were formed in the Precambrian time period no more than 1.8 billion years ago during the latter half of the Proterozoic Eon. The rocks are seen on the steep face of the Black Mountains above the current area of Badwater and were formed via deposits of mud and sand from an ancient volcanic mountain belt. Sometime between 1.8 and 1.7 billion years ago, the volcanic and sedimentary rocks were severely altered when chemical or structural changes occurred because of intense heat or pressure from the Earth's core. Because of this process, any fossilized information about the region was lost making it impossible to truly understand the origin of the region. There is some debate on whether basalt or schist was the original and dominate rock in the region before it was transformed into contorted gneiss, but again, there is no way to prove either theory.

The cataclysmic eruption which caused the collapse of the caldera and the deposition of the Bishop Tuff was an explosive, fast event. It ejected coarsely porphyritic biotite rhyolitic ash and viscous lava with an approximate silica content of 76 percent. The total ejecta came to about 600

For years, the State of Nevada has found the Yucca Mountain project unacceptable because of the obvious logical and scientific issues that make the site itself unsafe. Additional support for their argument is that other than being far from the nuclear waste, the repository cannot really separate itself and its dangers from the environment and humans. Even though Nevada started with just being upset about the state having the political finger pointed at them to hold the whole nation’s nuclear waste but now their argument is stronger (Adams, 2010). Not only is Yucca Mountains’ size not big enough for the entire countries nuclear waste, but geologic factors could make the waste

Little Cottonwood Canyon is a site bursting with geological history, rock formations earthquake potential on the fault, prehistoric glacial formations, landslides, and many hazards associated with it. The Wasatch fault is bound to have a enormous earthquake in the future and has left behind numerous scars. The mountains have been engraved by glacial formations dated back to the Ice Age (~14,000 years ago). Rock falls and landslides have left hefty boulders as indication of erosion and moisture in the rocks. The hazards on this mountain range are mass wasting, radon, earthquakes, and flooding of Little Cottonwood Creek.

Mesa Verde National Park on the Colorado Plateau contains many geological aspects of interest, including its sedimentary rock layers, its canyons, its alcoves utilized by ancient people and how these alcoves were formed. Mesa Verde National Park is located in the southwest corner of Colorado, close to the Four Corners area, on top of a high mesa overlooking the Mancos River (Harris et al. 2004). The park, covering 81 square miles, consists of several main sedimentary formations that are characteristic to the park (Encyclopedia Britannica 2015). Canyons are carved into the sedimentary rock, with the cave dwellings found high on their steep walls. These dwellings are an especially unique aspect to the Mesa Verde National Park, and are built out of large alcoves. The alcoves were produced by weathering and erosion of the sedimentary rock type. To better understand how these alcoves formed, we must understand the geology of Mesa Verde National Park and how it has developed over history.

Welcome to our first stop on this tour, NAU, also known as Northern Arizona University! Most of you guys go to school here, but for those of you who come from somewhere else, here's a brief geologic description of this area, the amazing city of Flagstaff. Flagstaff has many geologic wonders and is found on the southern part of the Colorado Plateau. A small portion of Flagstaff's northeastern rocks are sedimentary, like limestone, dolostone, quartzite, and shale, which were all deposited in the Paleozoic Era. The north region of Flagstaff is mostly volcanic rocks, like basalt. However, the west region of Flagstaff is mostly made up of limestone and again, basalt. Some of the geologic wonders that you can see here in Flagstaff are the San Francisco

Traditionally the Western Shoshone Nation’s ancestral land covers an area spanning from southern California, clear through Nevada, and barely touching southern Idaho. Within this scope of land is the previously mentioned Yucca Mountain, but also Mount Tenabo, a mountain in the Cortez Range of Northern Nevada, which is currently subject to mining. This large area of land is know as the Great Basin, where the habitat is dependent on the rain and snow melt water which comes off the high mountains, feeding the creeks which keep the living, living. Mount Tenabo is one such mountain; however it also holds a place in Shoshone creation stories, and is the site of ancient burials causing it to be of great importance to the entire nation of the Western Shoshone. The people of the Western Shoshone Nation still use the mountain to gather medical plants from these sacred places of their ancestors, and hold ceremonies.

Powerful forces of the earth cause a landmass to slide under the water. The hot water from the floor of the ocean then melted the rock from the land, forming granite rocks (U.S. Department of the Interior). Mesozoic volcanic and sedimentary rock are scattered through Sierra Nevada Batholith, which covered most of the park during the Jurassic and Cretaceous times (Harris). Weathering and the batholithic makeup impact the exterior of the landforms within these national parks. Yosemite National Park has a very similar geological history compared to the Sequoia and King Canyon National parks, due to the fact that they all lie in the Sierra Nevada’s peak and western slopes (Harris). When it comes to lithospheric extension in the Death Valley Region, during the time of rapid growth, the plates in this region rapidly expanded. In the region of the Sequoia and King Canyon national park the plates did not expand rapidly, thus indicating that more extension occurred in the Sequoia and Kings Canyon region (Jones). Under the surface, there are many marble caves that are endemic to the area (U.S. Department of the Interior). It is clear that natural forces like these have the ability to create beautiful and interesting geology. The description of the tectonic plates would be an ocean continent subduction zone (U.S. Department of the Interior | U.S. Geological Survey). This occurs because of the above process. A specific rock located in the national park is the Moro Rock. Moro rock is a large granite rock that is shaped like a dome. It was made by the process of exfoliation that has to do with the layers of granite expanding over time (U.S. Department of the Interior | U.S. Geological Survey). The exfoliation process creates many of the rock features located in the park. This exfoliation process is the same one that creates many of

The land rose up and created a precipitous eastern edge of the batholith and a gentle western edge. 10 million years ago, uplift, which is the vertical rise of Earth’s surface due to natural causes, started to occur and accelerated quickly. Soon, the Sierra Nevada Mountain Range that we know today towered 14,000 feet in elevation. Throughout uplift, cracks formed in the granite of the mountains. They formed due to the pressure that came with the uplift. The erosion that stripped away most of the overlying rocks caused the remaining rock to expand and crack. These cracks are still forming today and they provide a template for future erosion.

Weathering, geologic processes such as erosion, and climatic shifts allow for this immense desert ecosystem to continually evolve and change which has taken place for millions of years. This geologically wealthy environment is composed of alternating flat-lying layers of soft and hard deposits of mostly sedimentary rocks. Interchanging slopes and cliffs along the landscape helped form these layers of rock which can be seen fully exposed in areas of the mesa. Deposition of this landscape mainly occurred during the Permian, Pennsylvanian, Triassic and Jurassic time periods. The assortment of warm hues of sandstone were produced by varying levels of iron oxide minerals during formation.

Previously, the geology of Death Valley National Park and Yosemite National Park in the Basin and Range Province and Sierra Nevada Range respectfully were discussed. West of Death Valley, is the Sequoia and Kings Canyon National Parks in the Sierra Nevada Range in California. The Sequoia National Park is also 629 square miles and includes 403,482 acres while Kings Canyon is 722 square miles with 461,901 acres(739). Interestingly enough, in Spanish Sierra Nevada means “snow-covered mountain” although many people think that it doesn’t snow in California. Since the Yosemite National Park, Sequoia, and Kings National Park are a part of the Sierra Nevada Range, there will be similarities and differences in their geology.

The objective of the trip to Blount Springs, Alabama was to observe and gather data on the geological structure of the area. Blount Springs is located in the northern part of Alabama just 33 miles north of Birmingham, and lies on the southernmost part of the Appalachian fold belt. The field work began on the morning of Saturday April, 7th at 8:50am. The weather was cloudy with temperatures in the mid 40’s, and the area was wet from rain the previous night. Our materials included a map of the area, list of formations, a Brunton compass, and a Rite in the Rain field book. The procedure of the field work involved 12 stops at outcrops to gather data, one stop was omitted from the original plans. This data gathered included bedding and joint orientations

Many millions of years ago the Sierra Nevada was filled with ocean water until sediments began collecting and formed mountain ranges. Over a large period of time, the mountains began to wear out and became immersed in the ocean once again. Many different particles and materials began to make layers and created the first mountain system. After the Jurassic era, “…new strata were folded and crumpled and invaded by molten granite from below” (Beatty, 1943). A large

The Grand Canyon has plenty of volcanic rocks near the bottom and the top. ICR, Institute for Creative Research, has been involved in a project for years to date these volcanic rocks. this study has come a long way to show that many of the Grand Canyon strata could have formed rapidly, and that the erosion of the Canyon by the Colorado River has not been going on for millions of years.

Have you ever thought Manhattan, New York could be compared to the PA Grand Canyon with common points? People wouldn’t think so because one is a busy city and the other is a rural town. Although they bear some superficial similarities, such as tourist, family, attractions, and size the differences between Manhattan and the PA Grand Canyon are clear.