{"product_id":"retrieval-of-materials-with-water-separation-machines-instap-archaeological-excavation-manual-1-9781931534536","title":"Retrieval of Materials with Water Separation","description":"\u003cb\u003eBook Synopsis\u003c\/b\u003e\u003cbr\u003eFrom the introduction: A water separation, or flotation,  machine is an instrument that divides soil into three components:  the material that floats (called flot or light fraction), the  stones and other heavy portions that do not float (called residue  or heavy fraction), and the particles that either dissolve in  water or become suspended in it and are washed away. The primary purpose for utilizing such a device is the recovery  of organic remains, such as charred seeds, charcoal, or small  bones, which would otherwise be permanently lost. However, the  machine is of great value for archaeological excavation because  it allows for the collection of tiny artifacts of all classes, it  divides them by size and weight, and it does not break fragile  items. Water separation is very different from water screening.  Use of a water separation machine requires four stages in the  recovery of archaeological material: 1. Retrieval of archaeological sediments  2. Operation of the water separation machine  3. Sorting of the materials 4. Study of the materials Contents: List of figures; Introduction; Goals for Using Water  Separation Machines; History of Water Separation Machines;  General Components of a Water Separation Machine; Retrieval of  Soil; Sorting and Study of Remains; Contamination; Case Studies;  Bibliography.","brand":"INSTAP Academic Press","offers":[{"title":"Default Title","offer_id":49536084377943,"sku":"9781931534536","price":13.43,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9781931534536.jpg?v=1731900833","url":"https:\/\/bookcurl.com\/products\/retrieval-of-materials-with-water-separation-machines-instap-archaeological-excavation-manual-1-9781931534536","provider":"Book Curl","version":"1.0","type":"link"}