Tree stumps were found buried by the landslide debris
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This occurrence can produce accurate radiometric dating of the landslide event, if the stump is still in place. An example of this type of recovery is that of Cinquecerri: the dated stump was growing on the alluvial terrace, when it was buried by the toe of the earth flow. It was recovered with its roots still placed durante the bedrock under the sliding surface.
Gathering together all these information, it could be affirmed that the ple of how radiocarbon dating could be crosschecked with the available historic references, leading puro the conclusion that, by more chances, landslide occurred sopra Medieval time
Logs were found mixed with the original earth flows that constitute the landslide body. This is the most frequent case mediante the archivio elettronico of Table I. Per verso few cases, whole logs were found paio esatto excavations carried out for remedial works or preciso river erosion. Mediante the case of Romanoro landslide, several buried tree logs were found mixed with the landslide debris. These were placed at the same level within the landslide debris, and thus they belong to the same landslide event that, from radiocarbon dating, took place con verso period 3195–2845 cal y BP. Sopra the Cavola landslide event, per a esame borehole, five different organic levels were found. From radiocarbon dating, it was possible esatto reconstruct the activity of this landslide starting from its first event (the deepest sample was recovered on the sliding surface) and lasting over a period of 1000 years. An interesting relation between the position of organic levels and their ages can be established: the deepest level, placed 45 m beneath the landslide surface, is the oldest, the shallowest, placed 9 m beneath the landslide surface, is the youngest.