Drilling cores clarify stratigraphy


  • Anonymous


The recently completed third leg of the Ocean Drilling Program (ODP Leg 103) provided much new information about the stratigraphy of the Spanish coast. Moreover, drillhole data from this leg challenged some conventional ideas about the region's stratigraphy that had been deduced from previous seismic reflection profiling studies.

The scientific staff aboard the JOIDES Resolution studied the area in which what is now the Iberian Peninsula once joined what is now Newfoundland. After studying cores from 12 drillholes, the scientists believe that some of their results may force a revision of the previously accepted interpretations garnered from seismic stratigraphy, according to Edward L. Winterer of the Scripps Institution of Oceanography in La Jolla, Calif., who served as a co-chief scientist of the cruise.