Nuevas acotaciones al alcance del método de datación por análisis de racemización de aminoácidos. Sección de Cuesta Colorada (Almería SE de España)
2000
New data about the age of Cuesta Colorada (Almeria, Spain) are presented. Evidency from
micropaleontological sampling and new palaeomagnetical studies, allowed us to correlate the almost
whole section with the I and 11 Pliocene Units. An undoubtfull palaeomagnetical reversal found in an
intensively sampled micritic layer, could represent the Gauss-Matuyama boundary, confirming the data
from amino acid racemization analyses which indicate a wide time span between both the bottom and
the top of Cuesta Colorada deposition time. Samples taken from a very deeply excavated road cut allowed
very well preserved amino acid and palaeomagnetic samples taking, being possible to enlarge the normal
amino acid dating method range which in very favourable conditions could reach the upper part of Lower
Pleistocene time.
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