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Towards reconstruction of the lost Late Bronze Age intra-caldera island of Santorini, Greece.


ABSTRACT: During the Late Bronze Age, the island of Santorini had a semi-closed caldera harbour inherited from the 22 ka Cape Riva Plinian eruption, and a central island referred to as 'Pre-Kameni' after the present-day Kameni Islands. Here, the size and age of the intracaldera island prior to the Late Bronze Age (Minoan) eruption are constrained using a photo-statistical method, complemented by granulometry and high-precision K-Ar dating. Furthermore, the topography of Late Bronze Age Santorini is reconstructed by creating a new digital elevation model (DEM). Pre-Kameni and other parts of Santorini were destroyed during the 3.6 ka Minoan eruption, and their fragments were incorporated as lithic clasts in the Minoan pyroclastic deposits. Photo-statistical analysis and granulometry of these lithics, differentiated by lithology, constrain the volume of Pre-Kameni to 2.2-2.5 km3. Applying the Cassignol-Gillot K-Ar dating technique to the most characteristic black glassy andesite lithics, we propose that the island started to grow at 20.2?±?1.0 ka soon after the Cape Riva eruption. This implies a minimum long-term lava extrusion rate of ~0.13-0.14 km3/ky during the growth of Pre-Kameni.

SUBMITTER: Karatson D 

PROVIDER: S-EPMC5935677 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Towards reconstruction of the lost Late Bronze Age intra-caldera island of Santorini, Greece.

Karátson Dávid D   Gertisser Ralf R   Telbisz Tamás T   Vereb Viktor V   Quidelleur Xavier X   Druitt Timothy T   Nomikou Paraskevi P   Kósik Szabolcs S  

Scientific reports 20180504 1


During the Late Bronze Age, the island of Santorini had a semi-closed caldera harbour inherited from the 22 ka Cape Riva Plinian eruption, and a central island referred to as 'Pre-Kameni' after the present-day Kameni Islands. Here, the size and age of the intracaldera island prior to the Late Bronze Age (Minoan) eruption are constrained using a photo-statistical method, complemented by granulometry and high-precision K-Ar dating. Furthermore, the topography of Late Bronze Age Santorini is recons  ...[more]

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