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Hawaii. Courtesy Commander John Bortniak, NOAA Corps (ret.), www.photolib.noaa.gov/coastline/index.htmlStranded parrotfish in tidal pool at low tide on Laysan Island. Courtesy Dr. James P. McVey, NOAA Sea Grant Program, www.photolib.noaa.gov/mvey/index.htmlWhite bacterial mat dependent on the chemical energy provided by seafloor hot springs venting near the top of East Diamante volcano. Courtesy Pacific Ring of Fire 2004 Expedition, NOAA Office of Ocean Exploration; Dr. Bob Embley, NOAA PMEL, Chief Scientist, www.photolib.noaa.gov/nurp/index.htmlColorful tropical fish, soft corals, and basket stars cover the top of a volcanic spine that extends into the upper ocean where sunlight can penetrate at East Diamante volcano. Courtesy Pacific Ring of Fire 2004 Expedition, NOAA Office of Ocean Exploration; Dr. Bob Embley, NOAA PMEL, Chief Scientist, www.photolib.noaa.gov/nurp/index.htmlRocky intertidal zone on Olympic Coast National Marine Sanctuary. Courtesy NOAA's Sanctuaries Collection, www.photolib.noaa.gov/sanctuary/index.htmlYellowstone National Park, Wyoming. Warm dilute acid spring believed to represent acid meteoric recharge from near the crest of Norris Dome in Norris Geyser Basin. Green colors are from acid-loving microorganisms. Courtesy D.E. White, libraryphoto.cr.usgs.govAlaska Southwest, Katmai area. Courtesy Captain Budd Christman, NOAA Corps, www.photolib.noaa.gov/coastline/index.html






Stromatolites. Courtesy Isao Inouye, Mark Schneegurt, www-cyanosite.bio.purdue.edu
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GSA 2007 Annual Meeting, Geology and Health Division Topical Session #127 "Beneficial Aspects of Earth Sciences in Public Health": 28-31 October 2007, Denver, Colorado
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