You can get an idea of how is the new submarine volcano of El Hierro (Canarian Islands), two years after his birth. It was thanks to a video shot during the second campaign of research of the project “Vulcano”, conducted by the Spanish Institute of Oceanography (IEO), in November.
In it a path from the bottom to the top in which the volcanic material has accumulated, species that are growing on the surface or the colorful background of the main cone, which is influenced by the continuous sample is observed chemical emissions that are still active, as reported by the IEO in a statement.
The objective of this oceanographic research was to characterize the spatial and temporal variability of the physico-chemical, geological and biological entire periphery of the island of El Hierro properties from surface to the first 2000 meters from the water column. For this, the team has traveled on board the research vessel, “Angeles Alvariño” and has employed a towed underwater vehicle equipped with high definition cameras.
This is the video, click down here:
http://www.rtve.es/noticias/20131205/nueva-vida-volcan-submarino-hierro-dos-anos-despues-nacimiento/811460.shtml
The announcer (Silvia Rodríguez) says: “Vulcano is a multidisciplinary project, created in order to assess the environmental impact of the recent volcanic eruption on the island of El Hierro”
2 years later.
Silvia: “Thanks to this project, it has succeeded in filming for the first time, the volcano of La Restinga as a whole, from the base to the top ........... is a volcano composed mainly by loose fragments of volcanic material or pyroclastic rocks ... although we have also found fragments of lava rocks, forming lava flows and little pillows ....................”
“………In the deepest and remote area of the eruption, the effects of volcanic emissions are reflected in the accumulation of finer volcanic material such as ash and lapilli. On the more stable substrate, as sessile organisms we detect Gorgonias, Vivinela gender, and different species of corals and sponges ......... Because of its slow growth, they can not be considered as the new colonizers ecosystem but more well as survivors of the eruption”.
“……...The climb up the hillside, the volcano shows a modified morphology in the course of these two years ..... The instability of volcanic material, along with the steep slope, have caused several landslides change the surface of the volcano, alternating steep areas, which retain their original morphology, landslides ravaged areas - where fine materials predominate - and accumulation zones, large piroplastos known as "volcanic bombs" ................................
“Are these areas of cliffs and the accumulation of large fragments of pyroclastic materials preferred by many decapod of pleycionica gender, and different species of fish ...., dominating the known as "three tails." This species coexist in full harmony with the new material, which offers, between its cavities, the perfect getaway, these new residents……………..”
“If we look in more detail, the material ejected by the volcano, it is possible to detect its early settlers, being primarily suspension feeders, such as bivalves ostreid and polychaete serpulids, who probably have benefited from the enrichment of the water column after the eruption…..”
“………… Near the top, the influence of the rash is visible, with accumulation of "balloons" or "magmatic balloons". These balloons floated temporarily being expelled due to their gas vacuoles, until the space occupied by this gas was replaced by seawater”
…………………” Closer to the main cone, the influence of continuous chemical emissions, which are still active, it becomes more evident, showing a very colorful background: ochres, browns, greens, reds and yellows, which are characteristics of the various footprints chemical transformations who have suffered volcano rocks ..... "
…………………."Vulcan continues to control the ecosystem and its recovery by oceanographic surveys and through a satellite buoy, which allow us to observe the evolution of the physico-chemical properties that control the marine ecosystem”
The video has just finished and I hope that you have liked it.
Till soon, kind regards,
Luis.
Sponsored by Costaluz Lawyers.
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