El Hierro as an example of volcanism in the Canary Islands
28 views | +0 today
Follow
Your new post is loading...
Your new post is loading...
Rescooped by Moisés González Pérez from Sustain Our Earth
Scoop.it!

Volcanic activity in El Hierro related to the geological origin of the Canary Islands


Via SustainOurEarth
Moisés González Pérez's insight:

With the information provided in this topic and any other useful information you could find on the web you must create a presentation about the volcanic activity in El Hierro related to the geological origin of the Canary Islands.

As we have already mentioned in our lessons the Canary archipelago developed at a passive continental margin, on Jurassic oceanic lithosphere and a slow-moving tectonic plate. There are several genetic hypotheses for the Canary Islands, including a propagating fracture, a local extensional ridge, uplifted tectonic blocks and an unifying model but it is generally assumed that the archipelago originated from residual old plume material in the upper mantle.

 

You must work in groups of four people to make your Power Point presentation taking into account that you have  2 weeks to elaborate it. Therer Therefore, on may 12h all the presentations must be given to the teachar Moisés González.

Avoid to include a large amount of text in the slides and try not to be bored. All the works will be evaluated from 1 to 10, being 10 the highest mark.

more...
No comment yet.
Rescooped by Moisés González Pérez from Geography Education
Scoop.it!

What is a Hotspot?

1) What is a hotspot? A volcanic "hotspot" is an area in the upper mantle from which heat rises in a plume from deep in the Earth. High heat and lower pressure at the base of the mantle facilitates melting of the rock. This melt, called magma, rises through cracks to the surface and forms volcanoes. As the tectonic plate moves over the stationary hot spot, the volcanoes are rafted away and new ones form in their place.


Via Seth Dixon
Moisés González Pérez's insight:

It is a good video which explain how can be formed a group of islands under a hot spot. This example is valid not only for Hawaii but for the Canary Islands.

more...
Danielle Lip's curator insight, April 22, 2015 9:46 PM

While watching this video you can learn a lot about a hotspot in just 2 minutes, understanding that a hotspot is an area in the upper mantle in which heat rises and slowly begins to expand, building up pressure. The magma, which is hot rises and the cold matter sinks. the magma rises through the cracks and the plates actually carry the volcano. How did the whole idea of a volcano occur? Who knows where these volcanos are?  The hotspot can cause volcanos to erupt or even cause the volcanos to spread out, who knew a hotspot could be such a huge influence on the world, causing massive landforms and causing much tragedy.

Louis Mazza's curator insight, May 6, 2015 10:33 AM

What is a hotspot? It is a source of localized energy from the seafloor that creates volcanoes. It is not just a shallow reservoir nor a pipe filled with liquid. It is a constant stream of magma that does not move. Simple the plate move over it creating a row of multiple volcanoes, such as the Hawaiian Islands. When the magma erupts thru the surface the magma then turns to lava, and dries to rock. This process repeats until the built up lava is a volcano, still with hotspot in the middle. The plate moves and the hotspot creates a new volcano.

                This is interesting because hotspots are always changing geography, and causing map makers and teachers everywhere to learn new islands. 

Benjamin Jackson's curator insight, December 14, 2015 12:18 PM

this is a good way to discover how volcanoes are formed, and if you are trying to understand the Oceania region then this is information you need to know.

Rescooped by Moisés González Pérez from Autour des volcans
Scoop.it!

Potential Magmatic Intrusion Underway at El Hierro? | Wired Science | Wired.com

Potential Magmatic Intrusion Underway at El Hierro? | Wired Science | Wired.com | El Hierro as an example of volcanism in the Canary Islands | Scoop.it
Each red dot represents an earthquake registered at El Hierro in the Canary Islands from September 13-16, 2012.

Via harry
Moisés González Pérez's insight:

Nowadays it is generally assumed that the Canary Islands originated from a residual old plume material in the upper mantle. This activity still goes on in El Hierro island.

more...
No comment yet.
Rescooped by Moisés González Pérez from Autour des volcans
Scoop.it!

El Hierro Volcano : Green pre-alert - 9 earthquakes on Tuesday - New (shallower) swarm on the way ?

El Hierro Volcano : Green pre-alert - 9 earthquakes on Tuesday - New (shallower) swarm on the way ? | El Hierro as an example of volcanism in the Canary Islands | Scoop.it
24/9/2011 - 16/08/2012 - This article collects and publishes the latest news of the El Hierro (Canary Islands, Spain) volcano earthquakes and eruption process.

Via harry
Moisés González Pérez's insight:

Earthquake report shows the latest seismic activiy at the island of El Hierro.


This year (2013) a lot of shacking reports has been described by many people around the island. The biggest danger with the earthquake was rockfall and many has been report. Many reports of strong shacking have been received from the south of La Palma island.


 

more...
No comment yet.
Rescooped by Moisés González Pérez from GCHQ Canary Newsroom
Scoop.it!

El Hierro Submarine Volcano Eruption wins NASA image of the year competition

El Hierro Submarine Volcano Eruption wins NASA image of the year competition | El Hierro as an example of volcanism in the Canary Islands | Scoop.it
Tournament: Earth 2013 has come to a stunning end.

Via The Canary News
Moisés González Pérez's insight:

This image was acquired by the Advanced Land Imager (ALI) aboard the Earth Observing-1 (EO-1) satellite.

more...
No comment yet.
Rescooped by Moisés González Pérez from Mr Foden's Geography updates
Scoop.it!

El Hierro Volcano eruption: New Canary Island emerges as underwater volcano rises

El Hierro Volcano eruption: New Canary Island emerges as underwater volcano rises | El Hierro as an example of volcanism in the Canary Islands | Scoop.it

Magma from the Canary Island of El Hierro, off the northwest coast of mainland Africa, has been spewing 20 metres high as the sea boils with a smell of sulphur.

Usefull for AS - Rocks and weathering, A2 - Hazards

 


Via John Foden
Moisés González Pérez's insight:

Good article describing the submarine eruption of El Hierro.

more...
No comment yet.
Rescooped by Moisés González Pérez from La Mer et l'Homme
Scoop.it!

Underwater Eruption Shoes How Volcanic Islands Grow

Underwater Eruption Shoes How Volcanic Islands Grow | El Hierro as an example of volcanism in the Canary Islands | Scoop.it
Scientists watch the birth of a volcano near Spain's Canary Islands.

Via Nausicaa Sea News
Moisés González Pérez's insight:

From strange floating rocks to collapsing cones, an underwater eruption in the islando of El Hierro in the Canary Islands last year was a rare chance for scientists to watch how volcanic islands are built.

more...
Kay-leigh's curator insight, April 8, 2013 11:44 AM

Volcanoes are mainly formed by the movement of tectonic plates on the earths surface.The tectonic plates float around on mantle , these plates will either moves towards each other , away from each other or one will sink well the other one rises. When the tectonic plates sinks into the mantle that the rock will melt. This molten rock will slowly start to build up to the earths surface when it reach the earth surface its knowen as lava but as that lave starts to build up it forms a volcanoe.

Rescooped by Moisés González Pérez from Geology
Scoop.it!

Update on El Hierro volcano activity | Europe geology blog

Yesterday (21.03.2013) at 22:50 UTC an earthquake with the magnitude of 3.8 did happen in El Hierro volcano. This earthquake was felt on the Island from reports over Facebook. Since the earthquake activity has been ...

Via Catherine Russell
Moisés González Pérez's insight:

Earthquake activity still is going on in El Hierro island.

more...
No comment yet.
Rescooped by Moisés González Pérez from GCHQ Canary Newsroom
Scoop.it!

Easter Sunday sees The Canary Islands’ largest earthquake since 2011 eruption on El Hierro

Easter Sunday sees The Canary Islands’ largest earthquake since 2011 eruption on El Hierro | El Hierro as an example of volcanism in the Canary Islands | Scoop.it
A tremor measuring 4.9 on the Richter scale has been felt by the population of El Hierro this Easter Sunday, it is the largest quake to have occurred on the island since the beginning of the volcanic eruption in 2011, according to a statement from...

Via The Canary News
Moisés González Pérez's insight:

The volcanic activity goes on under the oceanic crust near El Hierro island.

more...
No comment yet.
Rescooped by Moisés González Pérez from Autour des volcans
Scoop.it!

El Hierro volcano (Canary Islands): submarine eruption 2011-2012 - CURRENT ACTIVITY

El Hierro volcano (Canary Islands): submarine eruption 2011-2012 - CURRENT ACTIVITY | El Hierro as an example of volcanism in the Canary Islands | Scoop.it

A weak stain has been visible today above the submarine spot in the Las Calmas Sea south of La Restinga, and a jacuzzi occurred faint this morning at 07:30 am. Volcanic tremor seems to continue at constant, although minimal levels. This suggests that the eruption is indeed continuing.
The research vessel Atlantic Explorer is currently working in the area.


Via harry
Moisés González Pérez's insight:

A lot of information about the earthquakes and the volcanic activity in El Hierro island is showed in this article.

more...
No comment yet.
Rescooped by Moisés González Pérez from GCHQ Canary Newsroom
Scoop.it!

El Hierro Submarine Volcano Eruption : Natural Hazards

El Hierro Submarine Volcano Eruption : Natural Hazards | El Hierro as an example of volcanism in the Canary Islands | Scoop.it
An underwater volcano in the Canary Islands turned waters green as it injected a plume of gas and crushed rock across the sea surface in October 2011. (RT @NASA A submarine volcano in the Canary Islands is erupting still.

Via The Canary News
Moisés González Pérez's insight:

Amazing picture which was acquired by the Advanced Land Imager (ALI) aboard the Earth Observing-1 (EO-1) satellite.

 

Bright aquamarine water indicates high concentrations of volcanic material. Immediately above the vent, a patch of brown water resembles a turbulent hot tub and indicates when and where the eruption is strongest.Video of the eruption shows the activity in more detail.

 

more...
No comment yet.