Nick Barber 🌋

@volcannick.bsky.social

Asst Professor, geoscientist, volcanophile magma, metals, and minerals 🌋🪨🛰️Philadelphian 🦅, father, husband. he/him. www.volcannick.com Opinions my own

The valid directions for time to flow are bottom-to-top and left-to-right. Time does not descend from the heavens, nor (at least in left-to-right scripts) does it flow from right to left like some geochemists seem to think.

Really interesting fracture morphology to this zircon (from an Archean shear zone in s. Ontario's Superior Craton). It looks positively dilated in the brittle realm: onion skin style sheeting along growth bands and then further blown apart along those new intracrystal mechanical discontinuities. ⚒️

Photomicrograph of a black and white crystal with numerous internal concentric layers of white and gray. Radial fractures cut across numerous layers but truncate at the top and bottom of those layers, implying the layer boundaries themselves are mechanical discontinuities. Scale bar 100 μm

A BILLION YEARS OF MISSING TIME The Great Unconformity at East Bluff, Devil's Lake, Wisconsin: 1.63 Ga Baraboo Quartzite overlain by a boulder breccia at the base of the sandstones of the Cambrian Sauk Sea (600-505 Ma). ⚒️

A female geologist has her hand on a low outcrop of quartzite, and that is overlain by ~2m of boulder breccia and then bedded sandstone. Annotated photo showing A female geologist has her hand on a low outcrop of quartzite, and that is overlain by ~2m of boulder breccia and then bedded sandstone.

One thing I don’t understand is this framing about US vs China winning the “AI race.” What exactly is the goal we are striving towards? What would the finish line look like for AI model development? The moon race had a clear goal. I don’t think LLMs are the same! www.nytimes.com/2026/08/04/t...

White House Whipsaws Silicon Valley (and Itself) Over A.I. Rules (Gift Article)

The Trump administration has struggled over how to approach “open source” models, which are freely available to download and favored by Chinese companies.

nytimes.com

Pro-wrestling executive Linda McMahon issued a letter today (in her role as US Secretary of Education) demanding that universities justify their existence and explain policies to the Trump administration by the end of 2026. Not sure what the endgame is, but it sure feels like a trap.

U.S. Secretary of Education Linda McMahon Issues National Call to Action to University Presidents and Governing Boards

Today, U.S. Secretary of Education Linda McMahon issued a national call to action to university presidents and governing boards, urging them to reaffirm higher education’s foundational commitments to ...

ed.gov

It's that time of year again - the EarthScope ISCE+ course in InSAR processing and analysis is underway! Here (on his short course debut) is Francisco Delgado leading us through a first modeling exercise using InSAR displacements over Okmok Volcano!

View of the OpenScienceLab screen, showing two versions of an interferogram of Okmok Volcano in Alaska. Francisco Delgado (webcam snapshot on the right) is leading the session.

...I approach peer review from the perspective of "what would make this manuscript more convincing and clearer?" Like, the only way I'd be negative (and even not "brutal") would be if a revised manuscript failed to do that. I'm not alone in doing that going by the reviews I get back on my stuff.

Anjali Dayal@anjalikdayal.bsky.social · 4d ago

I don’t really want to get into this with people who feel this way, but i don’t think this is a good thing! We don’t need to behave this way! It’s not healthy to approach academic discourse as an exercise in harshness!

Screenshot of a post that reads “It's incredible is how little folks understand about academe. Peer review is brutal. Academic Q+A is Troy level slaughter. Bros attacking a lady academic for a fair review would shit themselves on stage after a paper and break down into toddler tears after their first conference paper w a mean Q+A.
12:35 PM • Aug 1, 2026 ® Everybody can reply
12 reposts 5 quotes 75 likes 1 save”

this issue was just in front of the Supreme Court, and the case was the state of West Virginia against a middle school girl. which side sounds braver to you?

For people suggesting AP Geology as a solution to promoting geology in high schools, you do know that means there's a very high chance we kill our university intro courses and run face more cuts from admins like a number of the humanities are dealing with, yes?

Toddler has unfortunately picked up the curse “Jesus Christ,” in moments of big feelings. In trying to train him out of, my wife has asked he say “cheese and crackers,” instead. Now when he drops something I’ll hear him yell JESUS CRACKERS.

This is a good thread on a good paper, but I want to point out that pretty much *all* studies of the Panama-South America suture require it to have been in place by ~12-13 million years ago, and most would have that bit of the isthmus as above water then, too.

Z. Jack Tseng@tsengzj.bsky.social · 6d ago

Although the main GABI pulses started around the same time as the appearance of a persistent Panamanian land bridge, there has been conflicting findings as to the tempo and mode of pre-GABI land corridors. Some studies propose a Middle Miocene closure of the Central American Seaway (3/11)

Screenshot of an article titled "Middle Miocene closure of the Central American Seaway" by Montes et al. 2015.

Trying to catch up on fun/informative non-work related reading during sabattical. Hopefully this will recharge my mental batteries! July has been fun so far - these are the books I’ve made it through.

Book cover showing a black and white photo of a family. “My Two Italy’s” by Joseph LuzziBook cover. Ta-Nehru Coates “Between the World and Me”Bright orange cover. “How to Blow Up A Pipeline” by Andreas MalmBook cover with drawing of renaissance man. “The faithful executioner” by Joel F Harrington

Solidarity is needed. The attacks on vaccines and public health are coming for the rest of us eventually, just as they came for asbestos science, smoking science, and climate science before vaccines. Fixing democracy requires fighting against the attacks on science. And the converse. /end