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20th Century One of Driest for Northwest Africa in 900 Years(图)
20th Century One of Driest for Northwest Africa 900 Years
2010/6/22
Some of the worst droughts to hit North Africa in the last 900 years have occurred recently—in the late 20th century—according to an analysis of tree rings that has provided the most lengthy and detai...
Mapping of seabed morphology and shallow sediment structure of the Mauritania continental margin,Northwest Africa:some implications for geohazard potential
seabed morphology shallow sediment structure Mauritania continental margin geohazard potential
2009/12/3
Seafloor mapping of the Mauritania margin by multibeam bathymetry as well as shallow and high-resolution seismics in combination with core data has revealed a wide variety of seafloor features, which ...