This Radiant Sodalite Mineral Rock. Tenebrescence Is The Ability Of Minerals To Change Colour When Exposed

2020: Sequence of Little Blowhole operating. This blowhole was formed from a column dropping out in the Blow Hole Latite, the basal member of the Gerringong Volcanics (late Permian). 

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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Fragment of Ammonite Craspedodiscus Discofalcatus with Pyrite

volgaminerals

I am a peddler of chubby cat pics

me, to my friend, out of no where: You know whats fucked uP? the volcanology scale. Have i told you about the volcanic explosivity index?

my friend: no? What?!

me: Isnt it fun how catastrophic is only the halfway point on this exponential scale of eruption severity

brennanthepaleodude

I led yet another fossil hunting trip to #kitsilanobeach for the @vancouverpaleosociety and it went really well!

I will be posting some longer videos of the fossil site to YouTube, so if you would like to see more, check out my channel Brennan The Paleo Dude!

Gardens

he knows a whole lot about anatomy now open for hq

Notes on cartography by American cartographer, Erwin Raisz (1893-1968). So neat and precise. This makes me want to draw maps.

I think these are all from Raisz’s 1962 book, PRINCIPLES OF CARTOGRAPHY.