This data set consists of Cariaco Basin Trace Metal Data.
ODP Site 1002
10 42' N, 65 10' W, Depth 893m.
Metal concentration data (Ti, Fe) from the anoxic Cariaco Basin off the
Venezuelan coast record with subdecadal resolution variations in the
hydrological cycle over northern South America during the last 14,000 years
(14 ky). Following a dry Younger Dryas, a period of increased ... precipitation
and riverine discharge occurred during the Holocene "thermal maximum". Since
~5400 years ago (5.4 ka), a trend towards drier conditions is evident from the
data, with high amplitude fluctuations and precipitation minima during the
time interval 3.8 to 2.8 ka and during the "Little Ice Age". These regional
changes in precipitation are best explained by shifts in the mean latitude of
the Atlantic Intertropical Convergence Zone (ITCZ), potentially driven by
Pacific-based climate variability. The Cariaco Basin record exhibits strong
correlations with climate records from distant regions, including the high
latitude northern hemisphere, providing evidence for global teleconnections
among regional climates.