Mastodawn

▴ Grjótagjá

Grjótagjá is a small lava cave near Lake Mývatn formed by volcanic activity. It features impressive lava formations and a crystal-clear, hot pool, for which reason it once served as a popular bathing spot. Nowadays, however, swimming is prohibited due to the water’s unpredictable and dangerously high temperatures, which can exceed 50°C. The cave also gained popularity after being featured in the TV show 'Game of Thrones', further adding to its appeal. Definitely a nice spot to visit when travelling along the ring road.

#nature #landscape #geothermal #volcanic #cave #hotspring #outdoors #photography #travelphotography #landscapephotography #naturephotography #goexplore #adventure #travel #roadtrip #myvatn #northerniceland #iceland #ringroad

Spectrum Imagery 5d ago

▴ Námafjall Hverir

Námafjall (or Hverir) is a geothermal area in northern Iceland, just east of Lake Mývatn. The landscape is dotted with steaming fumaroles, bubbling mud pots, and the distinct scent of sulfur in the air. A short trail winds through the area via the Námaskarð pass, offering close-up views of this otherworldly terrain. Definitely a must-visit stop along the Ring Road or when exploring the Diamond Circle!

#nature #landscape #geothermal #volcanic #mudpool #outdoors #photography #travelphotography #landscapephotography #naturephotography #sunstar #goexplore #adventure #travel #roadtrip #myvatn #hverir #namafjall #northerniceland #iceland #ringroad

Scientific Frontline Oct 7

The study indicates that ash from the #Nishinoshima #eruptions was transported by wind and #ocean currents to the waters around #Mukojima, serving as a nutrient source for #phytoplankton growth in that area.
The findings suggest that volcanic ash can enhance the productivity of #marine waters even at considerable distances from the #volcanic site.
#Ecology #EarthScience #sflorg
https://www.sflorg.com/2025/10/eco10072502.html

Volcanic ash may enhance phytoplankton growth in the ocean over 100 km away

The study indicates that ash from the Nishinoshima eruptions was transported by wind and ocean currents to the waters around Mukojima

Mine Nest Oct 4

https://www.minenest.com/565671/ TROLLUJĘ GRACZY W 99 NOCY W LESIE W ROBLOX🌙 #99Nights #99NightsInTheForest #99Nocy #99NocyWLesie #baran #deer #GłupieGry #GłupieGryDlaDziewczyn #gra #gry #jeleń #lava #new #NewUpdate #owl #PoPolsku #ram #ROBLOX #RobloxVideos #sowa #troll #TrollIn99NightsInTheForest #TrollujęW99Nocy #update #volcanic #WerkaAferka

SeaWonk Oct 3

Archean Eon
This time the moon was very close to our planet and this period had first life. #earth #geological #prehistoric #planet #water #moon #volcanic #period #eon #era #landscape #ancient #ancientplanet #painting #oilpaint #archean #penup

SeaWonk Oct 3

Hadean Eon
This is just a painting of the Earth's first eons, Hadean. Hadeon was one of Earth's first Eon(or Periods) named after from da Greek god, Hades. #earth #geological #prehistoric #planet #lava #sun #volcanic #hot #meteroid #period #eon #era #landscape #ancient #ancientplanet #painting #oilpaint #penup

Nikolas Kozloff Oct 2

Potential effects of a #supervolcano #eruption
https://www.sustainability-times.com/climate/this-volcano-could-kill-summer-forever-scientists-warn-super-eruption-drops-earths-temperature-while-crops-die-worldwide-in-months/#google_vignette What is the relationship between #climate and #volcanic #eruptions? My reporting from #Chile here https://nkozphoto.com/index.php/2025/09/24/volcanoes-climate-change-and-darwins-legacy-in-chile/ #darwin #science #chiloe #tambora #pinatubo

"This Volcano Could Kill Summer Forever": Scientists Warn Super Eruption Drops Earth's Temperature While Crops Die Worldwide In Months

In 1815, the world experienced a catastrophic event when Indonesia's Mount Tambora erupted, casting a shadow over the Earth. The aftermath was a year without

Sustainability Times

NomadGoat Sep 23

One of those hikes when looking back it’s hard to believe that I was there.

#volcanic #mountains #hike #lanzarote #canaries #islands #spain

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DoomsdaysCW Sep 19

Scientist makes groundbreaking discovery while studying ancient Roman technique for concrete: 'We have a huge potential'

by Calvin Coffee
Sun, August 31, 2025

"Concrete has a massive carbon footprint. One researcher from the University of Auckland is working to reduce it by studying ancient #Roman techniques. Using natural volcanic materials and industrial byproducts, he's incorporating #pumice and #seashells to create an #EcoFriendly, traditional alternative.

"At the Structures Testing Laboratory in Newmarket, New Zealand, Enrique Del Rey Castillo blends volcanic ash and kaimoana shells as replacements in the cement-making process, leveraging their #SelfHealing properties, which can repair cracks over time through natural chemical reactions.

"This initiative is crucial, as concrete is one of the world's most polluting materials, with global cement production accounting for 8% of total carbon emissions, contributing to rising global temperatures and increasing health risks.

"Del Rey Castillo has spent years testing how local materials can serve as sustainable alternatives. After focusing on conventional substitutes such as fly ash, he shifted to natural materials available nearby.

" 'I realised we have a huge potential in New Zealand with the use of natural #volcanic materials and #byproducts of primary industries,' Del Rey Castillo said.

"Concrete is essential for constructing bridges, roads, dams, and buildings, but its production releases over 4 billion tons of carbon dioxide annually. Calcining cement-primary materials at 1,500 degrees Celsius in a kiln emits large amounts of carbon dioxide and produces chemical reactions. Each pound of concrete releases 0.93 pounds of carbon dioxide.

"Pumice, however, doesn't require the energy-intensive calcining process; it just needs to be dried at 100 degrees Celsius to remove moisture before being ground into a fine powder. 'The carbon footprint is about 8-10% of the carbon footprint of cement,' Del Rey Castillo explained."

#SelfHealingConcrete #RomanConcrete #ReusingByproducts #Concrete #CarbonFootprint #Infrastructure #SolarPunkSunday #AncientTechnology