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Thatchpoint Bluehole

Thatchpoint Bluehole
Thatchpoint Bluehole
Thatchpoint Bluehole
Thatchpoint Bluehole
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247617
Donnelly, Jeffrey
Thatchpoint Bluehole
Still Image
04/18/2006
Thatchpoint_Bluehole-9.jpg
Image Of the Day caption:
WHOI geologist Jeff Donnelly and research assistant Richard Sullivan recently joined Texas A&M University at Galveston (TAMUG) geologist Pete van Hengstum and undergraduate student Tyler Winkler in collecting cores from Thatchpoint Bluehole. It is thought that blueholes form when rising seas flood a sinkhole, formed when limestone bedrock is dissolved from below by groundwater and collapses. The team collected a continuous, nine-meter (30-foot) sediment core from the bluehole as part of their efforts to construct a record of the frequency and intensity of tropical cyclones in the western Atlantic.
Photo by Jeff Donnelly
© Woods Hole Oceanographic Institution
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