Title

Confining the Date of the Decaturville Structure

Presenter Information

Tyler Sundell

Department

Geosciences and Geological and Petroleum Engineering

Major

Geology and Geophysics

Research Advisor

Hogan, John Patrick
Chapman, Alan D.

Advisor's Department

Geosciences and Geological and Petroleum Engineering

Second Advisor's Department

Geosciences and Geological and Petroleum Engineering

Funding Source

Opportunities for Undergraduate Research Experiences (OURE)

Abstract

The Decaturville Structure on Highway 5 in Missouri was established as a meteor impact site in 1979 by a USGS study funded by NASA. While this report did give an age range, the range was about 250 million years. By using U/Th-He Apatite thermochronology, which looks at the decay of U/Th into He inside the apatite minerals. The purpose of this study is to: constrain the age range of the formation for Decaturville. One of the features of an impact site is an uplifted block at the center. This uplifted block was displaced nearly 300m at Decatureville. While these rocks where being displaced, the apatite minerals passed through their blocking temperature and started the isotopic clock by trapping He.

Biography

Tyler Sundell is a senior in Geology and Geophysics at Missouri S&T whom is interested in planetary geology. He attended High School in Waynesville Missouri, graduating in May 2012. His personal science interests are in: terrestrial impact events, analog environments, and Precambrian geology.

Research Category

Sciences

Presentation Type

Oral Presentation

Document Type

Presentation

Location

Ozark Room

Presentation Date

11 Apr 2016, 10:30 am - 11:00 am

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Apr 11th, 10:30 AM Apr 11th, 11:00 AM

Confining the Date of the Decaturville Structure

Ozark Room

The Decaturville Structure on Highway 5 in Missouri was established as a meteor impact site in 1979 by a USGS study funded by NASA. While this report did give an age range, the range was about 250 million years. By using U/Th-He Apatite thermochronology, which looks at the decay of U/Th into He inside the apatite minerals. The purpose of this study is to: constrain the age range of the formation for Decaturville. One of the features of an impact site is an uplifted block at the center. This uplifted block was displaced nearly 300m at Decatureville. While these rocks where being displaced, the apatite minerals passed through their blocking temperature and started the isotopic clock by trapping He.