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Research Projects -
International
The objectives are to identify chemical and microbial contaminants associated with African dust air masses in source and downwind sites and determine the effects of dust particles and the chemical contaminants on downwind coral reefs and human health. Due to the complex geologic history of the northwestern part of South America, the Colombian coasts include a variety of coastline types, ranging from high-relief, steep-plunging cliffs typical of igneous and metamorphic massifs, to low, sandy barrier islands and extensive mangrove swamps characteristic of deltaic areas of both coasts. This website describes the regional morphologies and geologic processes of the Caribbean and Pacific coasts of Colombia. Isla del Coco Fishes, written by coral reef ecologist Ginger Garrison, is the first synthesis of scientific information about the remote Isla del Coco National Park (Costa Rica) and UN Natural World Heritage Site. The book, written in Spanish and English, presents the complete fish and coral species lists and contains descriptions and color photographs of 150 of the over 270 fish species known from Isla del Coco, arranged in phylogenetic order. Many of the species are new records for the island and/or the eastern tropical Pacific. The first edition was published in 2000, the Second edition was revised and published in 2005, and the Third edition will be published in 2010. This site will thus review the progress made in SGD science (with particular emphasis on new applications of geochemical tracers and novel geophysical tools), provide links to many SGD projects and study sites, and present an inclusive list of relevant publications. The eventual goal of our SGD science is to develop some forecasting or predictive capability based on being able to de-couple climatic and seasonal signatures from SGD rates.
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U. S. Department of the Interior | U.S. Geological Survey
African Dust, Ecosystems, and Human Health
Coasts of Colombia
Isla del Coco Fishes
Submarine Groundwater Discharge