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#tectonicplates

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Die Silfra-Spalte im Þingvellir-Nationalpark ist ein besonderer Ort: Hier trifft das Wasser aus dem Langjökull-Gletscher auf die tektonische Grenze zwischen Europa und Amerika. Beim Schnorcheln schwebe ich förmlich zwischen den Kontinenten – das Wasser ist kristallklar und eiskalt, mit einer konstanten Temperatur von etwa 2-4 Grad Celsius. Die Sichtweite unter Wasser beträgt oft über 100 Meter, was mir ein Gefühl von unglaublicher Klarheit vermittelt.
19.05.2025, #Iceland #Thingvellir #Silfra #snorkeling #TectonicPlates [7]
Zwischen den Felsen des Þingvellir Nationalparks finden sich schmale Spalten, die mit klarem Wasser gefüllt sind und im Sonnenlicht glitzern. Diese Fissuren sind Teil der aktiven Grabenbruchzone und zeigen eindrucksvoll, wie sich die nordamerikanische und eurasische Kontinentalplatte hier langsam voneinander entfernen.
18.05.2025, #Iceland #Thingvellir #TectonicPlates #fissure [3]
Þingvellir liegt genau auf der Grenze zwischen der nordamerikanischen und der eurasischen Kontinentalplatte. Die tiefen Gräben und steilen Felswände zeigen eindrucksvoll, wie sich die Erde hier etwa zwei Zentimeter pro Jahr auseinanderzieht. Diese sichtbare Bewegung der Erdplatten ist ein seltenes Naturphänomen, das man sonst kaum so direkt erleben kann.
18.05.2025, #Iceland #Thingvellir #TectonicPlates #geology [7]

If all of Antartica's ice sheet melted, the isostatic rebound of the continent (since the ice sheet does/did make a pressure on it) could sink the other continents by more that 11 meters. In addition to the sea level rise.

Other interesting facts: coolantarctica.com/Community/a

www.coolantarctica.comWhat if all the ice in Antarctica melted?Would the world flood? how hot would it be? what effect would it have on where we could live?

Unexpected And Unexplained Structures Found Deep Below The Pacific Ocean
There are zones where the seismic waves move in different ways, suggesting structures that are colder or have a different composition than the surrounding molten rock.
It is unclear what these structures are. If they were anywhere else, they could be portions of #tectonicplates that have sunk in a #subductionzone. But the Pacific is one large plate, so there should be no subduction material under it. iflscience.com/unexpected-and-

IFLScience · Unexpected And Unexplained Structures Found Deep Below The Pacific OceanBy Dr. Alfredo Carpineti

Scientists have discovered "sunken worlds" deep within Earth's mantle using a new seismographic imaging method. These blobs resemble ancient crust but are found in unexpected locations, posing a mystery to researchers. The new method offers a clearer image of Earth's interior, revealing potential subducted slabs in places with no known tectonic activity.

space.com/the-universe/earth/s

Space · Scientists discover 'sunken worlds' hidden deep within Earth's mantle that shouldn't be thereBy Harry Baker

Researchers Discover Five New #HydrothermalVents in Pacific Ocean sci.news/othersciences/geoscie

"#Hydrothermal vents are rich in chemicals that supply energy to #animal life, fueling rich and productive #ecosystems. The new sites... are located on the #EastPacificRise near 10°N latitude, a part of the globe-spanning mid-ocean ridge #volcanic mountain chain, where two #TectonicPlates are splitting apart at a rate of about 11 cm per year."