Erik Haroldson
@erikharold
Followers
458
Following
8K
Media
345
Statuses
2K
Assistant Professor of Geology at Sac State, he/him, opinions my own Bluesky: @erikharold.bsky.social
Clarksville, TN
Joined December 2009
NEW! 3rd Edition Physical Geology Lecture Tutorials! https://t.co/HwSBUuU21O -Now with important terms for students to define #geoscience #geology #OER Please RT
erikharoldson.com
The Physical Geology Lecture Tutorials are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. They are intended for educational purposes only. Th…
0
0
5
Science communicators and illustrators. Please stop drawing the mantle as red/orange/yellow (eg this diagram from Wikipedia). It perpetuates the misconception that the mantle is magma or molten or liquid or whatever. It is not. Instead, make it green. Because it is green.
17
122
342
*Geology PhD alert!* I'm looking for a curious, enthusiastic student to work on critical metals in remobilized sulphides, at the University of British Columbia - Okanagan campus in Canada. Please apply by 1 Dec. More info here: https://t.co/knuEIXY62Y
2
30
46
I knew there were a lot of fake accounts on this platform, but they are usually obvious. I had no idea how intricate and complex the ruse could be. Get a load of this story. 1/
684
4K
21K
Agreed! That's why I wrote ggpubfigs, a ggplot2 extension that *only colorblind-friendly color palettes. Easily make your figures colorblind-friendly with ggpubfigs! https://t.co/frQgsl7zjP
13
301
2K
An effective way to demo polarized light in the petrographic microscope @UTK_EEPS
#Mineralogy
1
3
10
Fluid Inclusion folks (I know this will get a lot of hits). I've only worked with Linkam stages, but always intrigued by the USGS gas-flow. Alas, at my new gig I have funds but for only one of them. Which way should I go? #geotwitter
0
0
0
A few minutes ago, Unit 4 turbo-generator at Ratcliffe-on-Soar power station desynced from the GB grid system, marking the END of electricity generation from COAL after 142 years 🇬🇧🙏🏻 @RobBurnett92 and I present a 🪡🧵on the evolution of coal fired power from 1882 to today 1/n
143
1K
7K
How do I express that I’m concerned about the people of western NC and I’m also concerned about the potential future global economic disaster because Spruce Pine is the sole producer of ultra pure Quartz for crucibles that all global semiconductor production relies on?
382
4K
27K
Massive debris flow traveling at lightning speed in eastern TN! The preceding drought conditions followed by days of rain ahead of Hurricane Helene set the stage. This is incredibly rapid for a debris flow.
707
6K
29K
Come and be my colleague! The Department of Earth and Planetary Sciences at the University of California, Riverside is seeking applicants for a tenure-track Assistant Professor in Economic Geology, broadly defined. Deadline: January 6th, 2025! https://t.co/geUzTXaqys
0
2
10
Honky Chonk Beardonkadonk... Fat Bear Week is coming! 🐻 Yes, you heard correctly—#FatBearWeek, a time when we collectively celebrate the corpulent charms of our Ursidae friends, kicks off October 2-8.
195
3K
22K
Excited to be at @geosociety 2024 in Anaheim, CA. A 'lot' of critical metals/economic geology stuff lined up this year.
0
1
1
Really proud of Tanner Sigears work through the NSF-IRES funded program at @APSUCoSTEM. Excellent poster presentation of his investigations of slag glass from central Tennessee.
0
0
1
I was thinking about all the ways to describe the types of scientific papers out there. For example, there's the Tug of War paper, where the paper is framed as a tense debate with two strongly opposing sides. You come in and side with one side and become a hero for breaking the
2
26
105
It’s been a terribly exciting 1st Round of #MinCup24 - brackets have been ruined, trash has been talked, organic minerals have been learned about & more!!
1
4
36
We are saddened to hear the news about the passing of Prof Jack Zussman who only recently reached his 100th birthday. Prof. Zussman is best know for his contribution to Crystallography and as author of 'An Introduction to the Rock-Forming Minerals'
3
78
292
Very proud of @sydneyunigeo PhD student, Chris Alfonso, who just published his 1st paper in GSA Bulletin! 👏 This project used spatio-temporal data mining (powered by #pyGPlates + #gplately) and machine learning to help find new porphyry copper deposits. https://t.co/ZbIMIGgSPa
2
71
267