Meanwhile, work continues on earlier sites. Twenty two samples from Site 1095 have been analyzed for bulk mineralogy and clay mineralogy with X-ray diffraction. The bulk mineralogy shows little change downhole, with composition being primarily quartz and feldspar. This may reflect sediment diagenesis, but is in any case one more diagnostic criterion that can be used to distinguish parts of the glacial cycle. Work on the Site 1096 MST and color reflectance data sets has provided an updated combined depth scheme.
Manual correlation agrees well with optimization using cross correlation.
Also, preliminary Fourier analysis of Site 1095 data sets has revealed dominant frequencies mostly in the Milankovitch band.