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From Source to Sink: Upper Devonian Algal Cysts (Tasmanites) Delivered to the Gulf of Mexico During the Last Glaciation

Event Type
Seminar/Symposium
Topics
algal cysts, devonian, gulf of mexico, laurentide last glaciation, tasmanitids
Sponsor
Illinois State Geological Survey, Prairie Research Institute
Location
Leighton Conference Room (Room 101, Natural Resources Building, Peabody Drive, Champaign IL)
Date
Jan 27, 2020   11:00 am - 12:00 pm  
Speaker
Dr. B. Brandon Curry
Contact
Andrew Stumpf
E-Mail
astumpf@illinois.edu
Phone
217-244-6462
Views
60
Originating Calendar
Illinois State Geological Survey Seminars

Abstract

Reworked upper Devonian tasmanitids occur in last glacial maximum (29-17 ka) sediment located in isolated basins: the western Great Lakes region, and continental-slope deposits in the Gulf of Mexico (GOM). The source of the microfossils includes the New Albany Shale (Indiana, Illinois) and Atrim Formation (Michigan). Not only are the cysts new unique index fossils for GOM Pleistocene stratigraphy, the present dataset indicates that most erosion of the Great Lakes Michigan, Huron, and Erie occurred during the last glaciation.

 

About the speaker

Dr. Curry is a Principal Research Scientist and head of the Quaternary and Engineering Geology section of the Illinois State Geological Survey, Prairie Research Institute. All of his degrees have been in geology, including a Bachelor of Arts from the University of California at Santa Barbara, a Master of Science from Purdue University, and a PhD from the University of Illinois at Urbana-Champaign. He has been with the ISGS almost his entire professional career, over 35 years. He specializes in Illinois’ Quaternary geology, focusing on its history, stratigraphy, paleopedology, environmental geology, surficial mapping, and paleolimnology.

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