Structural geology

Abbylyn Sessions Professor Livingston Geology 1100 28 August 2016 Fantasy Field Trip Just outside of Custer, South Dakota is a hidden geological treasure: Jewel Cave. Jewel Cave has over 181.89 miles in mapped passageways making it the third longest cave in the world (United States. National Park Service). The formation is lined with calcite crystals creating a beautiful view inside. Jewel cave is a geologic wonder that would make a great field trip. A field trip to Jewel cave would allow the…

GEOLOGIC SETTING AT OUTCROP The rocks of the Wilberns Formation have a very involved history. Today, the Wilberns outcrops are found in the Llano uplift region of central Texas, the most prolific Wilberns outcrops are to the west of the Llano uplift area (Bell and Barnes, 1972, p. 28). The Llano uplift area is a geologically complex region of central Texas (fig. 3). Precambrian metamorphic and plutonic igneous rocks mostly dominate the Llano region. The uplift brought Cambrian Wilberns rocks to…

Alfred Wegener is the man that introduced us to the Continental Drift Theory. He spent many years looking for clues from the past to support his idea of drifting continents. Alfred discovered many plants and fossils in many different Continents that where supposedly all together, at one time when they were together it was called Pangaea (Pangaea is the name for what included all current land masses, believed to have been in existence before the continents broke apart during the Jurassic…

The fossil record; what is it? First of all we need to know what a fossil is. A fossil is evidence of a life from years ago which has been preserved in some way. This includes impressions or remains of an organism embedded in strata (Biology Online, 2011). Now that you have an idea of what fossils are, what is the fossil record? The fossil record provides information about the history of life on earth through the placement of fossils within the rock strata. The fossil record also shows how a…

Red Rocks Park and Amphitheatre Denver residents and music enthusiasts best associate the Red Rock Amphitheatre with concerts, graduations, and other performances. Red Rocks combines awe inspiring sites with naturally acoustic splendor. The Amphitheatre attracts audiences and big name musicians to it stage with ease. However, Red Rocks Amphitheatre has a rich history many do not consider while listening to their favorite band or enjoying the trails around the park. Many important figures and…

Ian Miller is a Paleontologist who works for the Denver Museum of Nature and Science. Ian Miller’s problem is that he wants to find out how Western North America changed from the past 100 million years, what past climates were like 100 million years ago and the fossil ecosystems that existed 100 million years ago. Through solving and studying this problem, there have been many obstacles to solving his questions. Although obstacles causes trouble and hardships through experiments and test, Ian…

The Ercall Quarries were visited on October 21st, 2017. It is an important geological site and is part of the Site of Special Scientific Interest (SSSI). The Ercall sometimes known as the Ercall Hill, is a small hill in the county of Shropshire, England. The site includes 540-million-year-old ripple beds and ancient pre-Cambrian lava flows in exposed quarries. There is a M54 motorway near the Quarries, giving it easy access to the Quarries. The motorway was constructed in 1974, near the northern…

The San Andreas Fault is perhaps the most dangerous and destructive fault lines in North America. Passing through one of the most populous areas of the United States, the San Andreas Fault line stretches nearly the entire western seaboard of California (Lynch). The infamous earthquake of San Francisco of 1906 is likely the reason the fault has been so ill-reputed. Furthermore, the fault has been relatively inactive and the chance for a large rupture which could span hundreds of kilometers…

1 Camila Rejalaga Sept 24,2017 Earth 101 Volcano Project 2. What we learned from Mount Saint Helens: Surprises and New Science from the Eruption (Brochure) Welcome to Mt. Saint Helens Park Visitor Center! To better understand Mt. Saint Helens we must first go back to 1980. Although some of you might not have been born yet it was in that year that the US experienced its most destructive volcanic eruption in its history. Most of you might have already guessed it but it happened right here…

1.1 Introduction to Landslide A landslide is a geological phenomenon, which includes a wide range of ground movements, such as deep or shallow failure slopes and rock falls. See figure 1.1. 1.1.1 Factors influence Landslides Landslides occur when the stability of the slope turns from the stable state to unstable state. Most of the Landslides usually cause depend on two main factors: (i) Natural Factors and (ii) Anthropogenic Factors. (USSG, 2004) (i) Natural Factors (a) Geological…