Gallery/geochemistry

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urbanprimitiveaguasonicpentastarashleyetceterahullabaloo-balloon

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Diamonds are forever and Zircons are tooMany people have heard the saying ‘diamonds are forever’ but

Middle-aged Earth: Boring tectonics, boring life?It has long been known that life got started on Ear

Hope Jahren

Sampling underwater chert quarries in northwest Florida. A few weeks of working in the Wacissa, Auci

When your project area floods, you have to adapt. The sites are high and dry, but the access roads a

PaintingThis photograph captures “Artist’s Palette” in Death Valley National Park

Chernobyl’s TreesThe disaster at the Chernobyl Nuclear Power Plant in Ukraine was one of the w

americangeophysicalunion:Small mountain glaciers play a big role in recharging vital aquifers and in

Carbon Sources in Bangladesh Wetlands (Unlabelled) | January 2016

Chemical Spill in West VirginiaFriday morning, a large portion of the population in West Virginia, i

The End Ordovician Mass ExtinctionThis plot shows “extinction intensity”, defined as the

meetmeonthecraton:My contribution to the meme

S-tectonite with muscovite and quartz in thin section

Alkali Feldspar Granite Quartz, alkali feldspar and muscovite.

Composition includes: biotite, muscovite, chlorite, feldspars, oxides, and quartz. Feldspar poikilob

This rock is predominantly composed of quartz, alkali feldspar, and plagioclase. The alkali feldspar

Working on polishing my samples for reflective light microscopy. This sample is a pyroxenite from Ho

Olivine groundmass with an orthopyroxene phenocryst

This thin section shows an amygdule in a sample of amygdaloid basalt. The rock formed due to an erup

Labradorite

Websterite in thin section Clinopyroxene and orthopyroxene with few anhedral plagioclase crystals in

Recently, I’ve been working on analyzing surficial weathering of chert using Laser Ablatio

Hope Jahren

Stimulation of Microbially Mediated Arsenic Release in Bangladesh Aquifers by Young Carbon Indicated

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