Archive for February 2011

A new tree-ring data from western Anatolia

February 8, 2011

Kose et al. 2011 have published a new data set on May-June precipitation of the Late Holocene obtained from 17 black pine tree-rings. Their study was published in the Journal of Quaternary Research. May–June precipitation reconstructions contain mostly one-year and, less commonly, two-year drought events. The longest consecutive dry period was in between 1925–1928 AD. The driest year was 1887. The wettest years for the entire western Anatolia were determined to be AD 1835, 1876, 1881 and 1901. They claimed that the study provides a better understanding of agricultural drought and management of regional water resources. For more information, please refer to doi:10.1016/j.yqres.2010.12.005

 

Earthquakes cycles recorded in calcite veins

February 8, 2011

Uysal et al. 2011 have published a new study about long term seismic cycles recorded in southwest Anatolian calcite veins. The study appeared in the Journal of Earth and Planetary Science Letters. They conducted high-resolution micro-sampling, high-precision U-series dating and micro- chemical analysis on an extensional vein system in a tectonically active area. U/Th ages of the vein system is in between 23.9±0.2 ka and 11.8±0.2ka. Their study offers an innovative means of constraining the absolute timing of late Quaternary seismic and inter-seismic events in Anatolia, Turkey. For more information, please refer to doi:10.1016/j.epsl.2010.12.039

From Uysal et al. (2011) © 2010 Elsevier