Geology Reference
In-Depth Information
ROCK MAGNETIC
CYCLOSTRATIGRAPHY: SUMMARY
Johnnie Formation (Figure 8.1), indicate that rock
magnetic variations can detect subtle environmental
changes which can be linked to astronomically forced
global climate cycles. The technique has a promising
future for providing high-resolution time control for
sedimentary sequences, even as far back as the Late
Precambrian.
These examples of rock magnetic cyclostratigraphy
studies of the Eocene Arguis Formation, the Creta-
ceous Cupido Formation and the Traissic Latemar
dolomites, as well as the striking 5 m periodicity of
the goethite to hematite ratio in the Neoproterozoic
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