Abstract:
Grain Size and Magnetic Fabric Data interpreted in terms of
depositional environment and paleocurrent strength.
ABSTRACT (from the online documentation):
The combined use of grain size and magnetic fabric analyses provides
the ability to discriminate among depositional environments in
deep-sea terrigenous sediments. We analyzed samples from three
different depositional settings: turbidites,
... pelagic or hemipelagic
interlayers, and sediment drifts. Results indicate that sediment
samples from these different environments can be distinguished from
each other on the basis of their median grain size, sorting, as well
as the intensity and shape of magnetic fabric as determined from an
examination of the anisotropy of magnetic susceptibility. We use these
discriminators to interpret downcore samples from the Bermuda Rise
sediment drift. We find that the finer grains of the Bermuda Rise
(relative to the Blake Outer Ridge) do not result from lower
depositional energy (current speed) and so may reflect a difference in
the nature of sediment being delivered to the site (i.e. distance from
source) between the two locations. 
