The Titanoboa, Is A 48ft Long snake Dating From Around 60-58million Years Ago. It Had a Rib Cage

Follower celebration: Make me choose between __and __

@x-kytanna-x asked: Thorin or Bilbo?

Goethite #Geology #GeologyPage #Minerals

Locality: Tharsis, Alosno, Huelva, Andalusia, Spain.

Specimen size: 40 x 20 mm. Extracted 1988

Photo Copyright © C.P minerals

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I miss doing microscope work. Can we make a thread of our favourite thin section? This is mine

Actinolite Schist

A Highland Coo and her calf wandering down an empty road, Argyll and the Isles, Scotland. Credit: Andy Maclachlan.

This radiant Sodalite mineral rock. Tenebrescence is the ability of minerals to change colour when exposed to light. 

Source                       

The Hobbit: An Unexpected Journey (2012)

“Did I not say that you would be a burden? That you would not survive in the wild? That you had no place amongst us?”

What if... what if I WANT an info dump???

Then you're my favorite and I will dump SO much info on natrocarbonatite lava

No one knows for sure why or how this type of lava forms. Oldoinyo Lengai is the only volcano on earth that actively erupts it currently, and Oldoinyo Lengai hasn't been extensively studied.

The factor that causes lava to be viscous (thick, and sticky) is its silica content. Rhyolitic magmas, like those in Washington, have around 70 weight % silica. Basaltic magmas, like the volcanoes in Hawai'i, are around 45 wt% silica. Natrocarbonatite lava is less than 3% silica. Its flow rate is close to water, so it flows faster than you can outrun.

It's also a LOT less hot than other lavas. Most lavas are from 700-1200 degrees C (basaltic lavas in the higher range, rhyolitic lavas in the lower), but natrocarbonatite is around 500-600 degrees C. It's cool enough that you won't immediately die if you fall into it (you'll be hospitalized for months, as one man who fell into it was, but it's survivable). It's so cool that you can't see it glow in daylight.

It flows black and cools white! This is because of its content of the minerals nyerereite and gregoryite, which are unstable and break down quickly when exposed to humidity.

Basically it's cool as fuck literally and figuratively and I'm obsessed with it

Stomata as a Proxy for Atmospheric CO2 Levels

These strange, mouth-like structures are called stomata. Stomata are specialized pore structures found on plant leaves that permit the exchange of gases such as CO2, O2 and H2O, between the inside and outside of the leaf. They do so through the opening and closing of stomatal guard cells.

Plants convert visible light into sugars via the process of photosynthesis, which uses CO2 as a reactant. Along with light availability and temperature, CO2 is a limiting reactant of photosynthesis which means that the quantity of this compound controls the number of reactions that can take place.

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