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Mit einem [[Schütteltisch (Wilfley table)]] lässt sich Material durch unterschiedliche Form und Dichte separieren. Schütteltische werden ausgiebig für die Zirkonabscheidung zur U-Pb Datierung und die gewerbliche Abtrennung von Elementen mit hoher Dichte (z.B. Gold) verwendet. | |||
[[File:Wilfley_table_methods.png|500px|thumb]] | [[File:Wilfley_table_methods.png|500px|thumb]] | ||
== | ==Proben Aufbereitung== | ||
After adjusting the shaking table to the right tilt angle and reciprocating movement speed (Stroke Speed, rpm), the sample is placed in the vibratory feeder which is feeding the table at a constant feed rate through the feed box (see figure). The sample is then divided into three fractions: | After adjusting the shaking table to the right tilt angle and reciprocating movement speed (Stroke Speed, rpm), the sample is placed in the vibratory feeder which is feeding the table at a constant feed rate through the feed box (see figure). The sample is then divided into three fractions: | ||
• | • Schwere Fraktion | ||
• | • Mittlere Fraktion | ||
• | • Leichte Fraktion | ||
== | ==Vorbereitung für das Verfahren== | ||
• Turn on the wash water and ensure that the water is running evenly over the deck and is free of any dry patches. Start the machine and run for a few minutes on water only to wet all table edges. | • Turn on the wash water and ensure that the water is running evenly over the deck and is free of any dry patches. Start the machine and run for a few minutes on water only to wet all table edges. |