{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lec6 - University of California Berkeley Civil Engineering...

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

View Full Document Right Arrow Icon
University of California, Berkeley Professor Ken Johnson Civil Engineering 70 Engineering Geology Civil Engineering 70 Lecture 6 9/13/07 Goals o What sediment is How is it described How is it formed How is it Moved o Sediment Character is linked to environment o Terms – Bed, fissility, dip slopes Sedimentary Rocks o Formed by deposition of sediments Clastic Sedimentary Rocks Clasts – sand, gravel, silt, clay, particles Different sizes of clasts Chemical Sedimentary Rocks By precipitation from a saturated solution Biogenic Sedimentary Rocks By deposition of skeletal remains of marine or lacustrine organisms o Sedimentary part of Rock Cycle Wethering Erosion and dissolution Transportation Deposition Burial Diagenesis o Terms of clastic Sedimentary rocks Conglomerate - >50% gravel size Sandstone - >50% sand size Siltstone - >50% silt size Shale - >50% clay size, has fissility Claystone - >50% clay size, has no fissility Mudstone - >50% clay size, has no fissility Fissility – plane of weakness in compressed sedimentary rocks Composed of clasts and matrix Matrix consists of finer grained particles and cementing material Lithification of Sedimentary Rocks o Consolidation Slow squeezing of water from the pore space o Compaction Rearrangement of particles/clasts o Cementation
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