Dana Point Case Study

Superior Essays
INTRODUCTION
Dana Point is a city between Los Angeles and San Diego in southern California, but is best known for its harbor. Just north of the harbor lies a rocky beach with large cliffs only tens of meters from the sea, depending on tide level. Cliffs along the coast of southern California are prone to landslides due to their rock composition (mostly sedimentary) and high erosion rates from the sea but become increasingly stressed from overlying man-made structures and landscaping practices. For this reason, it is important to continually monitor the geological hazards that exist along the coast.

One relatively new way to monitor landscape changes over time is by the use of three-dimensional (3D) mapping. Long-term changes can be seen by
…show more content…
3), erosional paths (Fig. 4), areas of possible landslides (Fig. 4) and sea caves (Figure 5).

Field Mapping
Four faults were mapped while walking alongside the cliffs after flying the drones. Dips were 42 to the S, 83 to the N, 70 to the S, and 44 to the south. If more faults were to be mapped, a trend may be noticed and useful when estimating the slump or landslide potential of the cliffs. These data points were uploaded as a KMZ file and put on Google Earth (Figure 6). From visual inspection of both in person and digitally looking at the cliffs, there are numerous faults throughout the entirety of the cliff. If future models were taken of the cliff, they could be compared over time to see movement.

3D Print
The 3D .STL file is shown in figure 7 and the printed model is shown in figure 8. As you can see in the printed model, a portion of it did not get printed. I believe this may be due to a chopping error when placing support. The cliff did vary in the Z direction quite a bit across the cliffs and may have played a role in the cutting of the pulled back
…show more content…
I believe that this kind of mapping and continuous modeling over time will be very useful in future geologic studies and could be used to assess geologic hazards in an area.

Overall, this project was a lot of fun and I enjoyed the class as a whole. It let me know of software available to me for use in my future geology

Related Documents

  • Improved Essays

    Lock Haven Formation

    • 456 Words
    • 2 Pages

    The exposed rock material has a visible reverse fault, and is heavy faulted/folded. Visible soil, and vegetation growth on exposed section of the formation. Visible iron oxide staining from fractures in the section both natural, and manmade. Alternating material layers light grey to dark grey in the formation, and thick bands. 0 to 3feet of the section is composed of light grey, and soft material.…

    • 456 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    The extent of the rock formation’s instability became evident when rock being used for footing by an underage climber gave way and resulted in the boy falling to the ground being subsequently struck by dislodged rock. Id. Consequently, the climber sustained internal…

    • 985 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Roony Road History

    • 652 Words
    • 3 Pages

    This formation might be important for petroleum because of its carbon concentration. Because of pierre slate poor foundation this formation is a problem for construction. The Roadcut along Roony road, just south of I-70 has a 280 deg dip and S42E. The rock beds become older towards the mountains. When going from the south to the north along the roadcut the depositional environment changes from sea to marine. North Table Mountain was our first week trip.…

    • 652 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Cronulla Beach Action Plan

    • 1164 Words
    • 5 Pages

    3. What can we do to prevent the beach from further erosion? Primary Data  Photographs  Observations  Sketches  Line Drawings Secondary…

    • 1164 Words
    • 5 Pages
    Superior Essays
  • Improved Essays
    • 850 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    The processes that formed the area are amazing to think about how a once ancient sea bed became one of the nation’s top tourist spots. The inland sea that left a deposit after deposit of sandstone and shale. Then an intrusive magma that made its way through the crust, only to cool and become granite and pegmatites. This magma changed the existing rocks making schists and quartzite. After the inland sea receded erosion dominated the area eroding many layers of rock that had been deposited.…

    • 1635 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    Cutler Bay Case Study

    • 469 Words
    • 2 Pages

    In early 2011 I received an approval for my research to explore a possibility of establishing new High school in Cutler Bay. My efforts resulted in a report that had comprehensive information and the recommendations to the key stakeholder in writing an application letter for a go-ahead to build a charter high school. I met with the Edvision application consultants, Cutler Bay Council, and the Charter school advisory committee. Throughout the entire month, I visited Florida department of education together with individuals from Edvision consultants in order to see the approval of the project go through.…

    • 469 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    John McPhee’s The Control Of Nature tells three stories about how the Earth’s surface is changing. The stories have different settings, different plots, and different conclusions, but share two common themes that relate to our “enduring understandings” of Earth Science. The first theme is that the energy for the changes comes either from outer space (more specifically, the Sun), or from deep underneath the Earth’s surface. The other theme is that water and rock are never really created or destroyed, but instead cycle through the Earth’s systems in changing form. The stories combine these themes in different ways.…

    • 1193 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    In 1983, the inflows to Lake Powell were so great that the outlet tunnels at Glen Canyon Dam were severely damaged. The same 40-yr period saw two multi-year wet periods sandwiching a 5-year drought, followed by the most severe multi-year drought in the entire record (Lukas, 2009). During flooding events, dramatic geomorphological changes may occur in the river channel. Cycles of erosion and deposition from flooding events rearrange erosion and depositional features within the channel and…

    • 791 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    Mesa Verde National Park

    • 1038 Words
    • 5 Pages

    The Cliff House had many openings. On the top of the Mesa, snow was melting and rain was soaking in and goes through to the sandstone until it reaches the shale bed. Even though there were many openings in the Cliff House, they were small openings because the water would get stuck. Ground water was dissolving cement and loosening sheets and blocks of sandstone. Because of the seasonal freezing and thawing of ground water, it breaks up the bedrock.…

    • 1038 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    Axial Seamount Essay

    • 466 Words
    • 2 Pages

    The purpose of this paper is the explain a natural phenomena, Axial Seamount. Even if the reader has no knowledge of Axial Seamount, they will be able to fully understand the content of this paper. They will learn facts about Axial Seamount such as what it is, on what plates it is located on, what landforms are around it, etc. Axial Seamount is an underwater volcano located in the Northeastern Pacific Ocean, about 483 kilometers (300 miles) off the coast of Oregon. Because its frequent volcanic activity, the first underwater volcano observatory is located near the volcano.…

    • 466 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Spreading along the east and gulf coast of the United States of America are unique geologic formations known as barrier islands. Not only are these landforms neat to visit, but also they have the important role of protecting the coastline by reducing the effects storm winds and waves can have. Barrier Islands, like Assateague Island, can form in different ways, but all are constantly undergoing changes from various factors. The focus of this paper will be how barrier islands form and move, these islands’ importance, and the vulnerability of Assateague Island. First, a simple definition provided in the Merriam- Webster dictionary of a barrier island is “a long broad sandy island lying parallel to a shore that is built up by the action of waves,…

    • 860 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    On April 18,1906, the city of San Francisco experienced an earthquake known as “The Great Quake” leaving thousands of people hurt and/or dead. Due to the severe damage the earthquake had on the city, it left many homes destroyed. Much of the damaged resulted in people being homeless. Geologist have observed the impact that the earthquake left on San Francisco and the people. Since then, scientist have suggested what precautions we can do to help prevent severe damage to us and homes.…

    • 1063 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Not long ago in YOSEMITE NATIONAL PARK a rock has fallen causing a land landslide killing the one person the park Andrew Foster, officials stated, the death fatal to that family. Another injured, in total there was thirty people climbing this wall but there was too much dust to tell if others were injured Scott Gediman claimed. “El Capitan is one of the world's largest granite monoliths, towering 4,000 feet above Yosemite Valley.” People come from all over the world to see this park, rock slides are normal here but sometimes devastating. September 27th, 2017.…

    • 215 Words
    • 1 Pages
    Improved Essays
  • Improved Essays

    This irregular erosion was defined as being, “… (1) Erosion was uneven in occurrence and amount, (2) the storm surge afforded two opportunities for erosion, once as water inundated low-lying coast lands and again as floodwaters ebbed, (3) erosion control structures commonly remained intact, but failed to prevent bank erosion, (4) the storm disrupted near shore sedimentary structures, and (5) not all changes were erosional” (Hennessee and Halka).…

    • 311 Words
    • 2 Pages
    Improved Essays