Radiometric dating exercises

View course details in My Plan: ESS 100 ESS 101 Introduction to Geology & Societal Impacts (5) I&S/NWIntroduction to the processes, materials and structures that shape Earth. View course details in My Plan: ESS 102 ESS 103 Minerals and Gems (3) NWIntroduction to the nature of minerals: composition, structure, physical properties, and origins, with emphasis on gem minerals.Emphasizes the dynamic nature of the earth's tectonic system and its relationship to physical features, volcanism, earthquakes, minerals and rocks and geologic structures. View course details in My Plan: ESS 101 ESS 102 Space and Space Travel (5) I&S/NWExplores the sun, solar storms, observations from space and from Earth; Earth's space environment, radiation belts and hazards, plasma storms and auroras, rockets and propulsion, human exploration efforts, societal impact, planetary systems and resources, and project highlighting space and its exploration. Focuses on topics of particular interest in gemology, such as mechanisms of color, history and lore of gems, and uses of gems.

Explores how new instrumentation and experimentation in biology and chemistry, and improved sampling of the fossil record in geology, combine with astrobiology and geobiology to revise out history of Earth and its life. View course details in My Plan: ESS 204 ESS 205 Access to Space (5) NWGroup development of student experiments to the outer rim of our atmosphere and the beginning of space; investigation of stratosphere, mesosphere, thermosphere, magnetosphere, development of exploration packages; basic electronic fabrication, global positioning, radio tracking, expectations at high altitudes. 12) NWMiscellaneous field-based and experiential learning activities in earth and space sciences.

The island of Grand Cayman, in the western Caribbean, has an extensive mangrove swamp vegetation.

Numerous cores have been taken in and adjacent to these swamplands, and these reveal that the swamps are generally underlain by a transgressive sequence of sediments.

Samples of mangrove peat were collected from the peat/bedrock interface along a surveyed profile across Barkers Peninsula on Grand Cayman Radiometric dating of these implies that sea level was approximately 185 cm below the present level at least 2100 years BP.

Comparison of these dates with dates on mangrove peat from elsewhere suggests that submergence on Grand Cayman has taken place at a similar rate to that in Florida.

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