{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lab 5 (9) - .t o Md = Median — lies at the 50(p59 0 M2 =...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: *__-____.t._ o Md = Median — lies at the 50% / (p59 0 M2 = Mean — (qua + (p50 + (pm/3 0 With a perfectly normal grain size distribution Mo = Md = M2 0 Sorting = ((034 - cPug/4 ‘1' ($95 - (Ps)/6-6 I 0very well "‘" 2very poor 0 Skewness — measure of how skew distribution is relative to the mean ' Skl = [($16 + (Ps4 - 2(Pso)/2((Ps4 - ‘Plé )] + [(‘Ps + $95 - 2ti’:zo)/2((I?'95 - (Psll - -14—0—>t I -Sk = excess coarse ‘ A? l - Sk=0=perfectskew ,’ 3' _ I +Sk = excess fine iwsc’" Mb . n 4 _ o Kurtosis - Jed"; ‘fi pubic swims ' KG = ($95 - ¢s)/2-44(<P75 - (P25) I KG = 1 = perfect graph I K; >1 = leptokurtic I KG<1 = platykurtic Why Grain Size Distribution? 1) Basic descriptive measures I How we name and classify sediments 2) Environmental characterization I Can tell you what the environment \1vas like - Friedman — river vs. beach sand 99 mag:” 0 Sorting vs. skewness ' ‘ ran: a ham 3 ' ° " Wave action on a beach removes me sedlments Rivers accumulate fine sediments 0 Once the river slows, the fine sediments trickle down into more coarse sediment pour spaces Waves at beaches keep fine sediment suspended and it travels further out to sea Transportation Histogg: ...
View Full 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