Figure
3. The
18O
and aragonite records versus depth. Selected isotopic stages are indicated. The
glacial/interglacial variations throughout the record are large relative to
typical low-latitude records showing that sea-surface conditions varied
significantly throughout the mid-late Quaternary. The largest change was found
at the isotopic Stage 9/8 transition (~3
).
However, the heavy glacial Stage 8
18O
values may have been altered slightly by diagenesis. Amplitude change increased
after isotopic Stage 12. The interglacial
18O
values decreased after isotopic Stage 12, which is indicated by the horizontal
dashed line.