This paper presents the laser diffraction-derived fine-fraction grain-size data for 530 samples from drift Site 1095. Contour techniques and the method of moments describe and characterize the frequency distribution data. The data set exhibits intervals of distinct changes in frequency, amplitude, and spatial (downcore) and temporal occurrence.
On the basis of three statistical parameters (mean, standard deviation, and skewness) calculated using the method of moments, it is possible to divide the data sets into at least three populations. The downcore and temporal distributions of the populations may be linked to discrete depositional processes.
Further investigations and the incorporation of other data sets are needed for definitive statements toward a new sequence stratigraphic model for Drift 7. In our ongoing project, the bivariant approach for discriminating the data set will be tested against multivariant factor and cluster analysis and complex physical properties based depositional models.