Folding is of major concern in the interpretation
of ice core records.
Abstract from my et al paper:
knowledge of past climate conditions comes largely from ice cores and other
sedimentary records. Interpretation of these records relies on the
assumption that the stratigraphic layering has remained intact. For marine
and lacustrine sedimentary cores, bioturbation and tectonic displacements
are major concerns. For ice core records, layer stratigraphy is usually
assumed to have remained intact except possibly very close to the bed.
However, the loss of correlation of d18O
others, 1995) and other climatic indicators
below 2750 m depth (some 270 m above the bed) in the ice core records from
GRIP and GISP2, Greenland, and visual observations of small scale folding in
the bottom 1/3 of the GISP2 core, points to the possibility of layer
disturbance at considerable heights above the bed near an ice divide (Alley
and others, 1997).
Folding in strongly anisotropic media
A talk given at the IGS meeting on Ice Cores and Climate,
Kangalussuaq, Greenland, 17-23 August, 2001.
Fellingar valda miklum usla vi t˙lkun Ýskjarnagagna.
Stefnuhneig getur ■ar haft ßhrif.
Vinsamlegast kÝki ß ßgripi hÚr til vinstri.