Well Bay beach
A relaxing place to siwm surf and enjoy the views of nature
WENTWORTH SCALE
Chester Keeler Wentworth was born in Aspen, Colorado, on May 7, 1891. Chester graduated from the University of Chicago with an A.B. degree in geology in June 1918. Chester took his M.S. degree in 1921, and his Ph.D. in 1923, both at the University of Iowa.
It was during his time as a student at Iowa that Chester’s unusual combination of aptitudes led to the achievement for which he is most widely known — the Wentworth scale for the classification of clastic sedimentary rocks. He was Fellow of The Geological Society of America since 1923 until he died in Hawaii on 1969.
The original scale was devised in 1898 by the American sedimentary petrologist J.A. Udden and was adapted in 1922 by C.K. Wentworth, who expanded the definitions of the various grades to conform with actual usage by researchers.
GRAIN SIZE
Grain size scale, in sedimentology, division of a continuous range of particle sizes into a series of discrete groups.
Several such scales have been devised for the purpose of standardizing terms and providing a basis for statistical analysis. On most scales, the finest particles are designated clay, followed by silt, sand, granules, gravel, pebbles, cobbles, and boulders. The size limits for each grade vary from scale to scale.
TASKS
To log the earthcache, you will need to answer the following questions. Please submit your answers via the geocaching message center (preferred) or via email.
Do not post the answers to your log. You do not have to wait for the reply before you claim this, though if something is noticeably incorrect with your answers, we will reach out directly to resolve it.
1. Examine sediments and check whether the sediments are MONOMINERALS (composed of only one type of material) or MULTIMINERALS (composed of more than one type of material).
2. Which types of sediment can you find in this beach?
3 Using the Wentworth scale, classify the beach sand according to grain size.
4. Upload a picture with your log (optional)