In the following video we will be going through ancient mysteries that can’t really be explained. Watch the video to find out more!
The Santorini volcano provides an answer to the collapse of Minoan civilization: What scientists have discovered
THE ARCHAEOLOGIST EDITOR GROUP
Scientists have reexamined the eruption and more precisely calculated the volume of expelled magma using the most up-to-date geophysical and geological techniques.
An international team of researchers studied the volcanic material that was ejected from the Santorini volcano in great detail in order to learn more about the secrets of Europe's largest volcanic eruption in the last 10,000 years as well as advance knowledge of significant volcanic eruptions all over the world. The University of Athens' EKPA Department of Geology and Geoenvironment also takes part in the study.
Since island volcanoes have been the site of many of the most destructive volcanic eruptions in recorded history, a large portion of the eruption's debris has been deposited on the ocean floor. Because of this, it is challenging to study this material in order to ascertain the exact size of an explosion, leading to the size of these significant occurrences and the threats they pose being little recognized, even by experts.
The Minoan eruption of the Santorini volcano, which occurred about 3,600 years ago, and the volcanic material that was ejected were precisely measured by an international team of scientists under the direction of marine geoscientist Jens Carstens of the German Center for Ocean Research GEOMAR Helmholtz in Kiel and with the assistance of associate professor Evie Nomiko of the Department of Geology and Geoenvironment of EKPA. Their research was published in the Nature Communications publication.
Scientists have reexamined the Minoan eruption of Santorini and more precisely calculated the volume of expelled magma, by which an eruption's scale is evaluated, by combining the most recent geophysical and geological techniques. According to Evi Nomikos, associate professor of EKPA, "we are trying to piece together this "puzzle," what the Santorini volcano looked like prior to the Minoan eruption, what it was like afterwards, and how big was this tumor that erupted and spread around Santorini," through the study of this material. We can only learn this if we thoroughly investigate the underwater environment.
The researchers in this new study discovered that the amount of material blasted from Santorini on land and underwater was 26–41 cubic kilometers, much less than was previously believed (estimates from previous calculations were 86 cubic kilometers of ejected magma). Also, the amount of debris expelled provides information on the size of the magma chamber beneath the volcano.
Until now, estimations of the eruption volume were either based on estimates of the volume of the caldera collapse or on the imperfect record of the eruption products. This is the first time that such accurate quantities have been determined for all the different components. The explanatory power of either strategy by itself is constrained.
The researchers combined various techniques from many research missions for the new calculations.
For instance, they were able to identify the amount of ash produced by the Minoan eruption by tracing its ash deposition in 41 sediment cores taken during the Poseidon research expedition in 2017. They were able to classify the material that dropped into the volcano's crater thanks to the data they gathered.
"The great collaboration between Greek and foreign scientists who took part in past oceanographic missions around the undersea region of Santorini led to the creation of this article.” The most accurate estimation of the size of the Minoan eruption came from the combination of geological and geophysical data that had been gathered and analyzed, notes Ms. Nomikou.
The research team determined the true size of the Minoan eruption using the new scientific methodology and, as a result, established a more trustworthy benchmark for more accurate measurement and classification of other significant volcanic eruptions around the world.
"Eruptions can be deadly and can have an impact on the environment.” According to team leader Dr. Jens Carstens, "We are happy to have contributed with our research to a step towards a better understanding of these massive occurrences and, accordingly, to the enhancement of risk assessment.”
In December 2022 and January 2023, as part of the International Ocean Exploration Program's (IODP's) major oceanographic expedition, subsea research drilling will be conducted. After analyzing the seismic profiles and the topography of the undersea floor, the underwater drilling was done in the areas that the study team had identified as being particularly important, allowing the volume of volcanic debris from the Santorini Minoan eruption to be validated.
Macedonian "Kasta Tomb" at Amphipolis, Greece: It welcomes visitors after many years of excavations
The Kasta tomb, which caused worldwide interest, was opened to a limited number of visitors, nine years after its discovery.
Special public groups can now visit the well-known grave site at the Kasta mound in the municipality of Amfipoli. In groups of five, guided by a guard or an archaeologist, scientists, researchers, educators, travel industry professionals, and members of the Serres regional self-government get the chance to tour the interior of the mound and have a close-up look at some of its decorations.
Entrance to the current phase requires a reservation but no ticket. The visits, which will last a short while, will be conducted in consultation with the Serres Ephorate of Antiquities until the beginning of June, after which they will temporarily cease while work to remove scaffolds from the monument's interior gets underway.The first visitors can see from a relative distance the burial trench, which is impressive in size and construction. Then, the burial monument will be fully opened to the general public in 2027, after the completion of all necessary infrastructure, restoration, and regeneration of the surrounding area.
According to what the Minister of Culture, Lina Mendoni, stated on Holy Wednesday from the area, where she inspected the progress of the works, the visitors will have a satisfactory image of the monument, as they will be able to see the marble material that has been welded, the sphinxes in the entrance, and the preserved Caryatids.
In 2027, the monument can be fully visited.
With regard to the timetable when the burial monument will be able to be attributed in its entirety to the general public, this will be around 2027, once all the necessary infrastructure, restoration, and redevelopment of the surrounding area have been completed.
Only five or six individuals will be allowed to access the burial monument once it is made available to the public because of its small size. It is recognized that in order to keep the many visitors who will arrive at the mound entertained, an exhibition, a refreshment stand, and general activities must be constructed given the exceptionally high level of curiosity that exists.
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