Monthly Archives: October 2013

Golden Spike

In a stratigraphic context, what is a “golden spike?” Explain why the choice of the Ludlow Bone Bed in the Welsh Borderland was rejected as the Golden Spike for the Silurian / Devonian boundary. What alternate section was chosen and … Continue reading

Posted in Geoscience | Tagged , , , , , , , | Leave a comment

Occupational Health Hazards in Mining

This is the first-ever Guest Post on GeoMika, a request that forced me to invent a Guest Post Policy! Thank you to Megan Clark, a remote researcher from University of Queensland, Brisbane, Australia, for her writeup of one of the … Continue reading

Posted in Geoscience | Tagged , , , , , , , , , , | Leave a comment

BoraZ

After the Biology-Online scandal settled down, a new (unrelated) uproar started about revelations that senior editor Bora Zivkovic (BoraZ) has been inappropriate in his interactions with female writers, with heartbreaking fall-out over writers wondering how much of their success or … Continue reading

Posted in Practice of Science | Tagged , , , , | Leave a comment

Biology-Online & DNLee5

A professional science writer is asked to write for free. She declines, the editor calls her a whore. She writes about it, her home blog network pulls her post. Twitter storm ensues. ETA: Scientific American finally gets to a keyboard … Continue reading

Posted in Practice of Science | Tagged , , , , , , | Leave a comment

Modern vs. Ancient Marine Evaporite Environments

Compare and contrast modern and ancient marine evaporite environments. The mineral makeup of the earth has changed over time. Aside from mineral evolution, atmospheric and climate changes also impact what type of sediments are produced. In the era of a … Continue reading

Posted in Geoscience | Tagged , , , , , , | Leave a comment

Mid-Ocean Ridge

Describe the sediments you would expect on the ocean floor near a mid ocean ridge, from the ridge crest to the deep ocean floor 4000m below sea level on either side of the ridge. How active divergent margins evolve determines … Continue reading

Posted in Geoscience | Tagged , , , , , , , , , | Leave a comment

#61 October 2013: What do you do?

I’ve been getting emails from students and proto-geos trying to understand what the practical differences of the various geoscience jobs are: how is geophysics different than geochemistry? What coursework is helpful if you’re too far along to switch majors, but … Continue reading

Posted in Geoscience | Tagged , , , | 5 Comments

An introduction to domestic hedgehogs

You may have noticed that biology is not my strongest science, but even so, I can’t help but quantify my hedgehog’s experiences as he explores the world. Hedgehogs are classified as exotics; they are rare pets, even illegal in some … Continue reading

Posted in Biology | Tagged | Leave a comment