Short-term changes in seafloor character due to flood-derived hyperpycnal discharge: Typhoon Mindulle, Taiwan, July 2004
J.D. Milliman, College of William and Mary, School of Marine Science, Gloucester Point, VA 23062-1346, USA; et al. Pages 779-782.
Torrential rains associated with typhoon Mindulle in early July 2004 caused the Choshui River in western Taiwan to discharge to the Taiwan Strait more than 70 million tons of sediment in three daysabout half the annual amount discharged by the Mississippi River to the Gulf of Mexico. Seismic and sedimentological data obtained before and after the typhoon indicate that the sediment was first deposited adjacent to the river mouth and then re-suspended and deposited as a discontinuous band of mud along northwestern Taiwan. Within one month most of the mud had been eroded (most likely transported northward by the Taiwan Warm Current), suggesting that although the immediate impact of floods off coastal Taiwan is considerable, flood-related deposits may last only a few weeks.
Highstand fans in the California borderland: The overlooked deep-water depositional systems
Jacob A. Covault, Stanford University Geological and Environmental Sciences, Stanford, California 94305-2115, USA; et al. pages 783-786.
Sediment and pollutants are brought to oceans by rivers and transported through the coastal zone. Early work suggested that transport of material to deep-marine basins is less important during interglacial periods of high sea level, such as at present. Covault et al.s work offshore Southern California, however, shows that the amount of sediment transported to deep-marine basins is approximately constant regardless of sea level, but the pathways of transport are different.
Quantitative model for magma degassing and ground deformation (bradyseism) at Campi Flegrei, Italy: Implications for future eruptions
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