Tephra Separation Laboratory

Facility

Tephra Separation laboratory

Staff

Dr Emma Tomlinson

Location

Museum Building, TCD

Activities supported:

Extraction of tephra (volcanic ash) shards from crypto-tephra layers (ie not visible to the naked eye) within marine, lacrustine and peat archives using:

• Density separation using SPT heavy liquid
• Wet sieving at 125, 80 and 25 micron
• Tephra picking and mounting
• Hand polishing

Equipment

• LW Scientific Ultra8Y centrifuge
• Nikon Optiphot microscope
• Warner M33 micromanipulator
• Hotplates

Note:

Igneous rock samples or samples/items that may contain volcanic ash are not permitted in this laboratory.