{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Long Valley Caldera Outline

Long Valley Caldera Outline - THESIS The Long Valley...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
THESIS: The Long Valley Caldera in Mammoth Lakes, California is a crater caused by a violent volcanic eruption in recent geologic history. It undergoes regular volcanism that indicates the possibility of yet another eruption in the future. The geologic and eruptive history of the caldera show the volcano’s ancient patterns of activity and allow for inferences about the future. Since 1980 the caldera has been experiencing significantly strong volcanic unrest. The United States Geological Survey (USGS) conducts various monitoring operations in and around the caldera. I. Long Valley Caldera’s geology and eruptive history is characterized by violent explosions, often of rhyolitic magma. A. Volcanic activity that eventually led to the formation of the Long Valley Caldera began approximately 3.6 million years ago. i. White Mountains and Sierra Nevada fault systems began experiencing earthquakes. ii. A magma chamber began to grow, eventually covering a 4000 square kilometer area beneath the surface. iii. Earthquakes caused eruptions of basaltic and andesitic lava to flow over about 1500 square miles. B. Approximately 2.5 million years go volcanic activity began to concentrate in the area where the Long Valley Caldera is today.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern