luca.m.
taking pictures
The layering corresponds to Milankovitch cycle.
Unit: Morbiokalk (limestone), Lias
Graham P. Weedon:
"The 21 000 year (21 ka) precession cycle was detected in all three cases, the 100 ka eccentricity cycle in two cases and the 41 ka obliquity cycle in one. Filtering revealed that the supposed 21 ka sedimentary cycles are grouped into packets of four or five small and large amplitude cycles. The packets reflect the 100 ka modulation of the 21 ka precession cycle. Local disruption of the packaging can be used to locate hiatuses in pelagic strata."
source: jgs.lyellcollection.org/cgi/content/abstract/ 146/1/133
taking pictures
The layering corresponds to Milankovitch cycle.
Unit: Morbiokalk (limestone), Lias
Graham P. Weedon:
"The 21 000 year (21 ka) precession cycle was detected in all three cases, the 100 ka eccentricity cycle in two cases and the 41 ka obliquity cycle in one. Filtering revealed that the supposed 21 ka sedimentary cycles are grouped into packets of four or five small and large amplitude cycles. The packets reflect the 100 ka modulation of the 21 ka precession cycle. Local disruption of the packaging can be used to locate hiatuses in pelagic strata."
source: jgs.lyellcollection.org/cgi/content/abstract/ 146/1/133