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The neutron diffraction patterns of liquid lithium lead alloys containing 0, 17, 34, 48, 61, 80, and 100 at.% 7Li were measured. The long-wavelength limit of the partial structure factors aij(k) and of the concentration–concentration correlation function SCC(k) is calculated. These values agree well with the values calculated from activity data. For the 80 at.% alloy the total SCC(k) function was measured. It shows a pronounced first peak at the k value of a prepeak observed with x rays. The Fourier tranform of SCC(k) is related to the short-range order-size coefficients which have been introduced by Warren et al. (Ref. 19) to describe the local order of solid solutions. The data for the liquid Li–Pb alloys indicate a preference for unlike nearest neighbors and a reduction of the distance between unlike nearest neighbors as compared with the mean distance of the pure components. This short-range order is probably due to a partially saltlike bonding between lithium and lead ions. The over-all structure of the liquid alloys is similar to the structure of a hard sphere system.

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The Anthering-section is one of the most expanded upper Paleocene - lower Eocene sedimentary sequences known to date and records several of the Paleocene/Eocene boundary events, including the delta 13 C isotope excursion. Within 250 m of abyssal-plain deposits, calcareous mud-turbidites originating from the basin slope alternate with hemipelagic claystones. The average rate of sedimentation for the lower part of Zone NP9 is calculated at 22.7 cm/ky and for the upper part of Zone NP9 and Zone NP10 at 9.1 cm/ky. In the lower part of Zone NP10 closely spaced bentonite layers occur which mainly display immobile element concentrations typical for alkaline basalts. However, the thickest bentonite (X1), situated at the base of the ash series, plots into the trachyte field. Dinoflagellate stratigraphy strongly suggests that the ash-series at Anthering is synchronous with the main occurrence of ash layers in the North Sea region which display a comparable chemical composition. The biostratigraphical and geochemical correspondence of both ash-series point to a common source of magma. Especially, a correlation of layer +19 of the North Sea region with layer X1 at Anthering seems probable. We therefore consider the bentonites from the Anthering-section as distal deposits of the "positive" ash-series of the North Sea region which obviously represent unique and widespread correlation tools.