APL001: Chemotyping the lignin of Posidonia seagrasses
By Joeri Kaal, Oscar Serrano, José-Carlos Del Río and Jorge Rencoret
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APL002: Itla-okla (Tillandsia usneoides) fibre temper in Pre-Columbian ceramics
By Joeri Kaal and Zackary Gilmore
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APL003: Sources of organic detritus from mussel farms in the Ría de Betanzos (NW Spain)
By Joeri Kaal and CSIC-PROINSA Mussel Lab Team
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APL004: Molecular properties of soil organic matter in dark buried colluvium from South Germany show abundance of fire residues from Early Neolithic vegetation clearance and slash and burn agriculture
By Joeri Kaal and Sonja Mailänder
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APL005: Naturally halogenated organic matter in Atlantic rankers is concentrated in microbial rather than pyrogenic moieties
By Joeri Kaal and Antonio Martínez Cortizas
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APL006: Analytical pyrolysis in marine environments revisited
By Joeri Kaal
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APL007: Fire, meat and totarol: organic matter in the embankments of the Neolithic site Bastuloken (North Sweden)
By Joeri Kaal, Johan Linderholm and Antonio Martínez Cortizas
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Recent entries

Analytical pyrolysis Letters

APL007

At the Neolithic site Bastuloken, several subterranean embankments have been identified. The corresponding sediments contain large amounts of bones and lithic elements, indicative of not only massive hunting but possibly also a large (elk) skin processing plant. The present study uses analytical pyrolysis and infrared spectroscopy to track changes in organic matter (OM) composition and relate them to past human activities. It appeared that the sediments contained two layers with a very strong and typical collagen fingerprint (dominated by pyrrole and diketodipyrrole), confirming ubiquitous presence of bone and/or meat (the soils are acidic and most bone materials have dissolved). Also, black carbon was abundant in several layers, which is probably an indication of fireplaces. Thus far, the results fit with the hypothesis of major inputs of animal tissue especially during two phases recorded between 30-45 cm and 60-65 cm depth, the first of which also contains higher inputs of totarol, indicative of the use of resin from Cupressaceae (gymnosperm tree). The level of OM preservation in these Neolithic structures is extraordinarily good and shows huge potential for molecular fingerprinting and deepen our understanding of the activities at this important site and the temporary and spatial variability therein.

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APL006

download   Analytical pyrolysis in marine environments revisited By Joeri Kaal   Abstract  This contribution outlines applications of analytical pyrolysis techniques (APTs)

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APL005

download     Naturally halogenated organic matter in Atlantic rankers is concentrated in microbial rather than pyrogenic moieties By Joeri Kaal and Antonio

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The mission of Pyrolyscience is to add analytical pyrolysis techniques to the common toolbox of earth and heritage scientists worldwide. It will do so by offering top quality analytical services and data evaluation all the way to the publishing phase (molecular identification, quantification, interpretation, writring). Pyrolyscience.com is also an exchange platform for experts of the field.

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