In the top of the sequence, the abundance of Abies increases, similarly to Picea , but displays a decreasing trend after sample 1403 (23.7%).
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High-resolution analysis of upper Miocene lake deposits: Evidence for the influence of Gleissberg-band solar forcing.
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The sentences
The signal towards the top of the sequence remains highly fluctuating, but with an increasing trend including one more peak of 8.5% (1396). 4.3.
They start with a negative trend up to sample 1525; the interval up to sample 1432 is characterized by high values, with two phases exhibiting several positive peaks (1503–1516, 1477–1455) and a decline afterwards up to sample 1432; this marks the turning point to overall increasing values ( Fig. 3 b).