Radiolarian Micropalaeontology: Collecting Radiolaria Water Vortex 1 day ago   08:31

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ProfSimonHaslett
Professor Simon Haslett discusses collecting radiolarian microfossils. 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, such as by the Deep Sea Drilling Project (DSDP), the Ocean Drilling Program (ODP) and the Integrated Ocean Drilling Program (IODP). 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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bapyou
Radiolarian ooze. Nice.
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Water Vortex Radiolarian Micropalaeontology: Collecting Radiolaria 1 day ago   00:52

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A water vortex created in a tank at Techniquest, Cardiff, Wales. Water vortices have been associated with turbulent tsunami flow. It has been argued that a vortex may act like a 'drill-bit' if armed with pebbles and small boulders at its tip, drilling into bedrock forming a circular erosion scar. See E. A. Bryant (2008) Tsunami: the Underrated Hazard (2nd Edition, Praxis Publishers, Chichester) for further details. An example of a possible vortex eroded hollow occurs in bedrock in the intertidal zone at Ogmore, Glamorgan (UK), as suggested by E. A. Bryant and S. K. Haslett (2007) Journal of Geology.