View allAll Photos Tagged magma
Þríhnúkar is a dormant volcano that has erupted three times. The last eruption, about 4,500 years ago, left behind a unique natural phenomenon: Þríhnúkagígur, the "Three Peaks Crater." It is unique and the only accessible magma chamber in the world. An elevator takes you 120 meters down.
A visit isn't cheap, but it's a unique experience when in Iceland.
Lots and lots of Apis mellifera honey bees, collecting sap for 'propolis' (known as bee glue) from a monkey puzzle tree felled over the winter at Brookwood Cemetery! I assume the warming weather has drawn the sap out? en.wikipedia.org/wiki/Propolis
Aerial view of lava flow from Pu'u O'o on the Big Island of Hawaii.
Post by Stephen Ball Photography.
Please don't use this image on websites, or other media without my explicit permission, blogs OK with notification and a link back, thanks! ©2016 Stephen Ball Photography, All rights reserved.
Thank you for your attention.
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Lorsque le magma sort des entrailles de la Terre et qu'il est projeté à 1200°C au-dessus du cratère, d'un jaune vif, au contact de l'air, il va rapidement changer d'aspect et de couleur pour finir par se recouvrir d'une croute noirâtre.
Et c'est en l'espace de quelques secondes que la transformation s'opère. Afin de "figer" ces projections au sortir de la bouche éruptive pour apprécier leurs formes variées et leurs coloris, il faut donc gagner en vitesse et passer la barre du 1/1000ème de seconde, en dessous le mouvement s'en retrouve flouté.
Et à chacune des projections, c'est toujours le même ravissement et aucune projection ne ressemble à une autre et l'on pourrait passer des heures à les photographier !
Le 3 septembre 2015 à 6h15
Réf. B2015-91
Photo non libre de droits - Pour tout achat (fichier numérique, tirage papier ou tableaux) merci de me contacter en privé.
Lots and lots of Apis mellifera honey bees, collecting sap for 'propolis' (known as bee glue) from a monkey puzzle tree felled over the winter at Brookwood Cemetery! I assume the warming weather has drawn the sap out? en.wikipedia.org/wiki/Propolis
Commentary.
Oh, shadowy igneous, rocks.
Eroded remnants of a 60 million-year-old magma chamber
by glacier, constant freeze-thaw in cracks and dykes, gravity as boulders tumble, wind, rain and subsequent burns and rivers.
Foreground up to top left is the Black Cuillin, mostly Gabbro with some Basalt Dyke Intrusion.
Beyond these hills, towards top right, but before the sea channel is reached are the lighter-coloured Red Cuillin Hills, made of granitic intrusions.
Both sets of hills produced by massive eruptions
that may have emitted projectile rock and lava-flows to a volume of 15 cubic kilometres, equivalent to the Krakatoa blast.
Lava-flows travelled up to 41 km. to places like the Sgurr of Eigg where rapid cooling produced glassy igneous rocks like Pitchstone or Obsidian.
The Red Cuillins eroded much more evenly, hence their more even, rounded forms.
The Black Cuillin is a much more dramatic erosion
leaving a ten-mile serrated, knife-edge arête with frequent vertical clefts.
It is raw, bare, jagged and breath-taking.
Many climbers of the Himalayas, Alps, Dolomites, Andes and Rockies have loved this ridge as their training ground.
Few places in the world have 360° views of sea-channels, ocean, islands, mainland, bays, beaches headlands, peninsulas, valleys, forests and layered mountains into the distance.
The views are astounding and totally captivating, simply unforgettable.
No wonder that the Isle of Skye is often rated one of the single most amazing islands on Earth.
It undoubtedly is!