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A Trichophycus hunt PDF Print E-mail
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Written by Dr. Duncan McIlroy   
Wednesday, 29 February 2012 19:26

Another grand day out on Bell Island, though a little on the nippy side at -10oC.

 

Stimulated by Dario wanting to collect a bentonite (to help with stratigraphic correlations), and me feeling the need to initiate Tiff into the department with some fieldwork, we had a grand day out.

 

grebes_nestBell Island was doing a good impression of Spitzbergen today with icy winds off the ocean, rocks glazed in rime and icicles hanging off the cliffs, but somehow you don't notice so much when there are trace fossils to see (well I don't anyways).

 

Sampling of a thin bentonite, the weapon of choice being a key according to Dario, went smoothly enough. It appears to be a mafic bentonite, so there are a couple of possible local sources. Greg Dunning is going to help us with the fingerprinting if there are no datable zircons apatites etc.

 

Then on to one of my favourite places to show off ichnology, Grebes Nest.  We had a happy couple of hours poking about, discovering in the process a hybrid Rosselia/Asterosoma/Zoophycos trace which has me scratching my head.  I added to my growing collection of Trichichnus/Polykladichnus (I think I might need some help with kicking that particular foible).  Perhaps when Adirenne Noftall has finished with her reconstructions I will be happier to leave them in the field.

Last Updated on Thursday, 01 March 2012 17:11
 
Ichnology of the Winterhouse Formation PDF Print E-mail
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Written by Dr. Duncan McIlroy   
Tuesday, 23 August 2011 15:44

Highlights of a short ichnological exploration of the Winterhouse Formation at Long Point on the Port au Port Peninsula, western Newfoundland.

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The Winterhouse Formation is of Late Ordovician age, sitting in the Long Point Group between the Lourdes and Misty Point Formations.  We have been interested in the unit as it sits around the oil window, and there has been some prior work on the palaeontology Bergstrom 1974 and palynology Gillespie 1998 (unpublished MSc thesis Memorial University- helen still works here in the CREAIT facility).  I saw my first Receptaculites which was a suprise.  I am kind of intrigued by them- it is ages since I came across a type of fossil I have never even heard of.

Last Updated on Tuesday, 30 August 2011 21:01
 
Bradore and Hawke Bay fieldwork PDF Print E-mail
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Written by Dr. Duncan McIlroy   
Tuesday, 23 August 2011 14:33

Congratulations to Dr. Richard Callow on being appointed as postdoc to a short project supported by the Petroleum Exploration Enhancement Program.

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Rich has been in the field this month studying the type sections of the Bradore Formation in Labrador and on the Northern Peninsula of Newfoundland. 





Last Updated on Tuesday, 30 August 2011 20:42
 
Turbidite Ichnology in Baja California, Mexico PDF Print E-mail
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Written by Rich   
Friday, 02 July 2010 12:43

Ophiomorpha rud...
Ophiomorpha rudis trace on turbidite sand sole


My research is focussed upon using trace fossils to help understand depositional environments in deep water turbidites.  The Rosario Formation in Baja California, Mexico, are an excellent case study, because the depositional environments, architecture, stratigraphy and evolution of these channel turbidite rocks have been studied by members of the “Slopes 2 Consortium” (www.turbidites.org) for several years, and I have been working in the field with other members of this research team. Surprisingly, the trace fossils within this system have not been studied in detail until now, and as with other turbidite systems, they have not been studied systematically across the range of depositional environments present in these settings.

Last Updated on Wednesday, 14 July 2010 10:54