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Originally posted by watchitburn
Ok, what i got out of that is:
Santorini has risen 14 centimeters in the past year and a half or so.
Generally it takes 20yrs for that type of rise to occur.
Aconcagua, the highest mountain in the Americas, is 2.4 metres higher than the 6 964 metres measured in 1989, according to new scientific research using state-of-the-art technology.
Evolution of Santorini Volcano dominated by episodic and rapid fluxes of melt from depth
* Michelle M. Parks,1
* Juliet Biggs,2
* Philip England,1
* Tamsin A. Mather,1
* Paraskevi Nomikou,3
* Kirill Palamartchouk,1, 4
* Xanthos Papanikolaou,5
* Demitris Paradissis,5
* Barry Parsons,1
* David M. Pyle,1
* Costas Raptakis5
* & Vangelis Zacharis5
Nature Geoscience (2012) | doi:10.1038/ngeo1562
Received 26 March 2012 | Accepted 03 August 2012 | Published online 09 September 2012
Santorini Volcano, the site of the catastrophic Minoan eruption in Greece, exhibits two distinct eruptive styles: small, effusive eruptions occur relatively frequently and build shields and domes of lava, whereas large explosive eruptions occur rarely, at intervals of 10,000–30,000 years. Both types of eruption were thought to incubate in a shallow magma chamber that is continually charged by small batches of melt injected into the chamber from below. However, petrological work suggests that at least 15% of the material ejected during the Minoan explosive eruption arrived in the magma chamber less than 100 years before the eruption. Here we use Satellite Radar Interferometry (InSAR) and Global Positioning System (GPS) measurements of surface deformation at Santorini to show that 10–20 million m3 of magma have been intruded beneath the volcano since January 2011. This volume is equivalent to 10–50% of the volumes of recorded dome-forming eruptions. GPS and triangulation data show that this is the only volumetrically significant intrusion to have occurred since 1955, shortly after the last eruption. Our observations imply that whether Santorini is in an explosive or dome-forming phase, its shallow magma chamber is charged episodically by high-flux batches of magma. The durations of these events are short in comparison with the intervening periods of repose and their timing is controlled by the dynamics of deeper magma reservoirs.
Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, UK
* Michelle M. Parks,
* Philip England,
* Tamsin A. Mather,
* Kirill Palamartchouk,
* Barry Parsons &
* David M. Pyle
School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, UK
* Juliet Biggs
Department of Geology and Geoenvironment, University of Athens, Athens, Nomikou GR-15784, Greece
* Paraskevi Nomikou
School of Civil Engineering and Geosciences, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK
* Kirill Palamartchouk
Higher Geodesy Laboratory, National Technical University, Athens, NTUA GR-15780, Greece
* Xanthos Papanikolaou,
* Demitris Paradissis,
* Costas Raptakis &
* Vangelis Zacharis