Radiolarian Micropalaeontology: Extracting Radiolaria Processing Microfossils 1 day ago   08:55

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ProfSimonHaslett
Professor Simon Haslett discusses extracting radiolarian microfossils from rocks and sediments. Radiolaria are marine single-celled organisms that possess a silica shell and are preserved in the fossil record. They can be collected from sediment accumulating on the sea-floor and retrieved through coring and extracted through sieving and chemical treatments. Radiolaria can be used in stratigraphy to date layers of rock and sediment through geological time, and also to reconstruct past environments and establish palaeoclimate history. Simon Haslett is Professor of Physical Geography and Director of the Centre for Excellence in Learning and Teaching at the University of Wales, Newport. New videos are regularly added so please subscribe to the channel.
Camera operator and editor: Jonathan Wallen.

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Eric Woody
I collect my micro forams from fossiliferous layers on land or from fossil marine fossil shells such as from mollusks and Gastropods. The deposits are very pure and are easy to extract after the specimans have dried.
ProfSimonHaslett
Very dilute HF solution (1-5%) is usually enough, so perhaps leave it for longer? I think I've seen some studies that use more concentrated HF, but can't remember the source.
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Processing Microfossils Radiolarian Micropalaeontology: Extracting Radiolaria 1 day ago   15:22

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This film was intended for teachers and students demonstrating how to extract microfossils from shale.

Credits:

Technical Advisors
Gilbert Klapper
Curtis Klug
John W. McLure

Host
Curtis King
Producer/Videographer
John R. McLure

Editors
Bruce Drummond
John R. McLure

Production Facilities Provided by:
Instructional Media Production
College of Education
The University of Iowa
Iowa City, Iowa 52242