INTEGRATING QUANTITATIVE GEOCHEMICAL ANALYSES IN AN INTERNATIONAL FIELD COURSE IN BERMUDA: INCREASING GEOLOGICAL METACOGNITION AND PROBLEM-SOLVING SKILLS THROUGH FIELD INVESTIGATIONS

Most international field experiences rely completely on a heuristic approach that involves examining basic geologic field relationships. Field courses in settings such as Bermuda allow students to examine geological field relationships, oceanography, environmental impacts, as well as the chance to experience another culture. The growing importance of geochemistry and understanding analytical techniques, however, requires that traditional field courses be updated to prepare students for future research and career paths. To address this problem we have integrated field analyses of water samples using a portable water analyzer in order to add a quantitative problem-solving dimension to this experience. The students collect ocean water and groundwater samples in the field, analyze samples in the laboratory in the evening, plot their results and discuss the results. We have complied concentration data at all the locations visited over the last decade, which allows us to introduce a discussion that elucidates temporal changes. Proximity to golf courses and resorts results in elevated N and P concentrations. Observations of the health of corals and other benthic organisms at each location are discussed in relation to the impacts of elevated nutrient levels. Details of field locations, itinerary, concentration data and techniques will be presented. Integration of quantitative analyses in the field adds a new dimension to field courses, introduces students to analytical techniques, and helps them develop metacognitive and self-regulated learning skills they will need in the future. Adding this quantitative dimension to international field courses will help sustain experiential, shared learning and related pedagogies that are critical to the Earth Sciences.