Data From Controlled Drilling Program in Kane County, Illinois (Classic Reprint)

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Excerpt from Data From Controlled Drilling Program in Kane County, IllinoisHydrometer analyses were used to determine the amount of clay (particle diameter less than mm) in each cohesive split-spoon sample. Samples of approximately 55 grams were taken, and corrections for temperature and added deflocculants were made. The amount of material coarser than silt (diameter greater than mm) was determined by sieving, and the amount of silt was determined by subtracting from.the weight of the total sample the weight of the coarser material plus the weight of clay.The rotary and split-spoon samples that were friable and noncohesive were sieved with Tyler screens. The dimensions of the sieves and the Wentworth and phi grain-size classifications related to this study are shown in table 1. The upper size limit of the sieved material was about 30 mm in diameter.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.