Distribution and chronology of submarine volcanic rocks around Santorini and their relationship to faulting
D. J. W. Piper, G. Pe-Piper, C. Perissoratis, G. Anastasakis, 2007. "Distribution and chronology of submarine volcanic rocks around Santorini and their relationship to faulting", The Geodynamics of the Aegean and Anatolia, T. Taymaz, Y. Yilmaz, Y. Dilek
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Seismic reflection profiles from the marine areas around Santorini in the south Aegean arc show the distribution of active faults and the occurrence of submarine volcanic rocks interfingering with stratified basinal sediment. Santorini is located at the intersection of fault sets of different ages. To the west, active faults trend east–west, whereas to the east, active faults trend ENE–WSW and a slightly older set of faults trends NE–SW. Subsurface submarine volcanic rocks can be dated using ages estimated for the stratified basin sediments elsewhere in the Milos–Christiani Basin. Volcanic horizons off Santorini correlate with the main (young) Akrotiri (0.65–0.55 Ma) and old Akrotiri (1.6 ka) volcanic episodes, respectively. Off Christiani, the upper unit of volcanic rocks is of similar age to the young Akrotiri episode and the lower volcanic unit is likely to be of latest Pliocene age. Late Neogene basin subsidence and volcanism are a consequence of changing patterns of faulting resulting from the collision of the African and Aegean–Anatolian plates.
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The complexity of plate interactions and associated crustal deformation in the Eastern Mediterranean region is reflected by the numerous destructive earthquakes that have occurred throughout its history. Many of these have been well documented and studied. In addition, the Aegean region provides examples of core-complex formation, synchronous basin evolution and subsequent graben formation and continental extensional deformation following orogenic contraction. It is therefore considered to be a perfect natural laboratory for the study of these mechanisms. The region has been the subject of intensive research for several decades. This book contains current results and ideas regarding the geodynamics of the Aegean and Anatolia. It will be essential reading for all geoscientists with an interest in the structural evolution of the Eastern Mediterranean.