| Description |
2005-8-9 | mH |
q413.1 is a soil sample taken from one of the very, very hard soil layers which occur in the plaza area J. The intention is to investigate the proportions of the grain sizes in this deposit in the hope that a geologist can explain the extreme hardness of this layer. The soil was first crushed with a hammer and in portions of 1.25L weighed. A total of 6L soil was investigated and had a total mass of 6681gr. This sample was sieved through four sieves with the following mesh sizes respectively: 1.00 mm, 0.600mm, 0.250mm, 0.180mm. The resulting fractions had the following (approximate) volume and (exact) mass respectively: X>1.00mm 1.78L and 1648gr; 1.00mm>X<.600mm 1.00L and 1022gr; 0.600mm>X<0.250mm 1.65L and 1854gr; 0.250mm>X<0.180mm 0.875L and 895gr; X<0.180mm 0.900L and 893gr. Total mass is 6312gr; of the missing mass the small pottery sherds that were removed before explains 221g. (Total volume is 6.205??)
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