Class

Article

College

College of Science

Department

Geology Department

Faculty Mentor

Carol Dehler

Presentation Type

Poster Presentation

Abstract

Geologic Setting

  • During the Cambrian Period (539-485.4Ma), the western US was submerged by a shallow ocean
  • Carbon cycle fluctuations in stable carbon were preserved in marine sediments
  • One such period of geologic time, the Drumian Age (500Ma), is defined by the first appearance of a deepwater trilobite, P. atavus, in west-central Utah
  • Researchers have hypothesized we can find Drumian-aged rocks without the fossils using carbon cycle fluctuations preserved in limestone
  • the Drumian Carbon Isotope Excursion (DICE) is defined as a -2.5‰ fluctuation in global carbon-bearing rocks


Location

Logan, UT

Start Date

4-9-2025 3:30 PM

End Date

4-9-2025 4:20 PM

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Included in

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Apr 9th, 3:30 PM Apr 9th, 4:20 PM

Inconsistencies With the Drumian Carbon Isotope Excursion (DICE) in West-Central Utah

Logan, UT

Geologic Setting

  • During the Cambrian Period (539-485.4Ma), the western US was submerged by a shallow ocean
  • Carbon cycle fluctuations in stable carbon were preserved in marine sediments
  • One such period of geologic time, the Drumian Age (500Ma), is defined by the first appearance of a deepwater trilobite, P. atavus, in west-central Utah
  • Researchers have hypothesized we can find Drumian-aged rocks without the fossils using carbon cycle fluctuations preserved in limestone
  • the Drumian Carbon Isotope Excursion (DICE) is defined as a -2.5‰ fluctuation in global carbon-bearing rocks