authodizer

@doktrock

Earthologist in a Chem Dept. Fargo; from St.Paul Minneapolis. U Minn. Immigrant son 🇩🇪🇱🇹/🇮🇳, spouse to 🇮🇸. 2x Fulbright #T1D ally ❤️Chicago. Geology! ☔️ doktrock.net

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Bluesky

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authodizer@doktrock· 16d

#Minnesota : Park Rapids, Nemeth Art Center. Outstanding group art exhibition; see it if you can! ✔️

Painting by Matt Bollinger (sorry, I don't have the title). Woman cradling a child while looking at her phone.

Map of Minnesota with Hubbard County highlighted. Credit: Wikipedia.

authodizer@doktrock· 16d

Album cover PRIMUS
(script): Sailing The Seas Of Cheese.

Illustration of a yellowish sea and sky with large sailing ship, various characters as Poseidon, etc

Album cover: Jane's Addiction, Ritual de lo Habitual.
Illustration of three central figures with yellowish orange headdresses or haloes; smaller illustrations of people on horseback; lit candles, a rooster, a radio, etc.

authodizer@doktrock· 16d

Thank you for the gift link! I also loved it as an update to your story told in BECOMING EARTH. For those who have not yet read it: Highly Recommended ✅

Book cover: Becoming Earth, illustrated garden

"Mind-opening."
-THE ATLANTIC
"Lyrical, smart... fascinating."
-NPR SCIENCE FRIDAY
"Glorious...achingly beautiful."
-ED YONG

BECOMING EARTH:
A JOURNEY THROUGH THE HIDDEN WONDERS THAT BRING OUR PLANET TO LIFE

FERRIS JABR

authodizer@doktrock· 19d

🚨Job Alert ‼️🚨 Actually, three (3) openings: 1) Adjunct Prof with industry experience in economic #geology and ore systems science 2) Lecturer, Sr Lecturer, or Assoc Prof, hydrogeology, geometallurgy, etc 3) Computational #geophysics www.wits.ac.za/vacancies/ Univ Witwatersrand, S Africa 🧪⚒️

1) Adjunct Professor with industry experience in economic geology and ore systems science.
The successful candidate will bring multi-commodity expertise across the exploration and mining value chain, and will play a central role in the academic leadership of the MSc Economic Geology (by Coursework and Research Report) and the associated short course programme.
2) Lecturer, Senior Lecturer, or Associate Professor with a research focus relevant to one or more of the School's core areas of expertise.
Expertise in hydrogeology and geometallurgy would be an advantage, although outstanding applicants in other areas of geoscience will also be considered.
3) Computational geophysicist at the rank of Lecturer, Senior Lecturer, Associate Professor, or Full Professor. The successful candidate will carry out a programme of research in the broadly defined area of computational geophysics/geosciences that complements one or more of the School's current research strengths, especially within our geophysics team.
These positions are listed at the Wits Vacancies website: https://www.wits.ac.za/vacancies/. Closing dates for all three positions: 31 August 2026

authodizer@doktrock· 21d

✅

Example of a recommended slashpage :

# CHIPOTLE
You should make a /chipotle page so when a friend is picking up Chipotle for you, you can send them a link instead of having to redescribe/retype your Chipotle order
• /chipotle on IndieWeb
• Creator: Shellsharks

authodizer@doktrock· 22d

The helium here was formed by radioactive decay of underlying Precambrian granitic rocks and apparently trapped by an overlying gabbro intrusion. The folks who discovered this occurrence (disclosure, I know some of them) were drilling for Cu-Ni in that intrusion, named the Bald Eagle Intrusion.

Map of a portion of Northern Minnesota. East of Babbitt, a blue area denotes the Bald Eagle Intrusion, and an orange diamond shows the location of the Topaz project.

authodizer@doktrock· 24d

Current status

Inside of a pub with TV screens showing pregame ceremonies of World Cup

authodizer@doktrock· 26d

Should we trust these contractors? As seen on campus.

A barrier with a sign that says
DANGER
CONSTRUCTION SITE
AUTHODIZER PERSONNEL
ONLY

In the background, construction equipment.

authodizer@doktrock· 29d

Why were they drilling here? Likely following up a magnetic anomaly. (The basement here is covered with glacial and sometimes Paleozoic sediments). They found meters and meters of banded iron formation (BIF)! Probably not what they were hoping for. #geology ⚒️🧪

A piece of drill core, of banded magnetite and silica.

Part of a drill core box with banded iron formation.

authodizer@doktrock· Jul 13

Here are some rocks! Core I was relogging the other day at NDGS library in Grand Forks; Precambrian basement of SE North Dakota. Drilled by New Jersey Zinc in 1964 as part of a mineral exploration program. (The other cores were drilled nearby in Minnesota and are in the core library in Hibbing.)

Two pieces of drill core, composed of medium grained whitish and greenish minerals, interpreted as metagabbro.

Side view of a core box looking down the rows of drill core.

authodizer@doktrock· Jul 7

"Ailing senator refuses to step down" (1992) "Since he was hospitalized in July, Burdick has refused to give interviews or allow reporters to visit, relying instead on terse statements prepared by aides describing him as feisty and alert." He died 4 days after this article appeared.

Newspaper article from September 4, 1992, describing Quentin Burdick's 32 years in the US Senate and his health issues.

authodizer@doktrock· Jul 4

Minnesota!

Lake scene with fluffy clouds and forested shoreline in the distance

authodizer@doktrock· Jun 28

Eastern South Dakota #SilentSunday

Looking into the sun over a flat grassy landscape, with a few trees and four large silhouetted windmills on the horizon

authodizer@doktrock· Jun 22

The Measure of All Things -Ken Alder

Book cover:
(illustration of two men)

THE
Measure
OF
All Things

The Seven-Year Odyssey and Hidden Error That Transformed the World

KEN ALDER
"These are enthralling, fascinating, even mind-altering pages.
Alder imbues the narrative with a tremulous, fever-soaked climax and a lengthy and satisfying denouement." —The Boston Globe

authodizer@doktrock· Jun 21

Fergus Falls, #Minnesota

A couple of guys seen from the back, sitting in wooden chairs looking out over a quiet river. They maybe father and son.

authodizer@doktrock· Jun 20

Free Will Fawzia Khan Hopkins, Minnesota 2024 Handwoven wool and cotton, hydrostone, audio recording Currently on exhibition at the North Dakota Museum of Art (NDMOA) "Tell me, what is it you plan to do with your one wild and precious life?" -Mary Oliver

A fringe rug, unfinished, with long strands of warp hanging from a sculptured hand attached to the wall.

The background is yellow-greenish; along the axis is a purple to reddish pattern resembling an audio spectrum.

Not shown: headphones in which one can hear the artist speaking the text

authodizer@doktrock· Jun 20

Peace 2024 Fawzia Khan Hopkins, Minnesota Handwoven wool and cotton, audio recording current exhibition at the North Dakota Museum of Art, Grand Forks (NDMOA) "It is my conviction that there is no way to peace -- peace is the way." -Thich Nhat Hanh

A fringed woven rug with background in shades of blue. A pattern along the long axis represents an audio spectrum.

Not shown: headphones in which one can hear the artist speaking the text.

authodizer@doktrock· Jun 10

Portion of the interior of the Corn Palace, Mitchell, SD, which is an arena / performance space; and explanatory panels. 2/2

A portion of the inside, with murals depicting outdoor scenes

Portion of an explanatory panel, with corn cobs attached onto a surface, and a sign saying:

"Brett Lowrie is the Product Grower for the Corn Palace.

We use 12 different colors or shades of corn in the decorating processes.

Rye, Sour Dock & Grasses are used in the trim work of the designs."

Portion of an explanatory panel, with corn cobs attached onto a surface. A sign says:

"The murals outside the Corn Palace are redecorated every year. These nine murals represent a new theme each year determined by the Corn Palace Board.
Mural designs are created by Dakota Wesleyan University Digital Media &
Design students.

It takes approximately 250,000 ears of corn to complete the murals. Each ear is cut in half lengthwise and nailed in place on the mural. It costs approximately $150,000 to decorate the Corn Palace each year.

Decorators use 60 acres of corn, 12 colors in total. In addition to corn the Palace is covered with over 10 acres of rye, sour dock, and other native grasses."

authodizer@doktrock· Jun 10

Exterior of the Corn Palace, Mitchell, South Dakota, 2026. The design is remade yearly, using corn cobs of different colors, cut in half and attached to the façade, along with native grasses. 1/2

Façade and entry of a substantial building. On either side of the entrance are mosaics made of the halves of corn cobs. The entrance is flanked by turrets and onion domes. Signage: World's Only Corn Palace, Mitchell SD. 250 Years of America.

Closer view of one of the mosaics. A waving US flag with Liberty Bell.

Closer view of one of the mosaics. A waving US flag with a document in front saying We The People, a quill pen, and ink well, and seven stars.

authodizer@doktrock· Jun 7

Video of a visit to Thornton Quarry, which is in a Silurian age reef, south of Chicago. Thanks for posting this! ⚒️

Map of the Chicago area showing location of Thornton Quarry

authodizer@doktrock· Jun 7

The Niobrara National Scenic River, northern Nebraska, at the Hwy 183 bridge. It flows eastward to join with the Missouri.

Looking downstream at a wide, shallow, river with a sandy bed. The shores are tree lined under a blue sky.

Looking upstream at a wide, shallow, river with a sandy bed. Birds flying about. The shores are tree lined under a blue sky.

authodizer@doktrock· Jun 7

Nebraska Sandhills, north of Arthur

Grass covered dune forms under a blue sky.

authodizer@doktrock· Jun 6

Rio Grande River at Albuquerque, upstream and downstream.

A shallow river with a sandy opposite shore, trees and partially cloudy sky.

authodizer@doktrock· May 28

Dog treadmill from the 1890's used for powering machines. Stuhr museum, Grand Island, Nebraska

Side view of a device; an inclined wooden treadmill connected to an iron wheel. Behind the display is a replica advertisement from Montgomery Ward : "First Prize Dog Power. This power can be operated by a dog, goat or sheep" etc

Longitudinal view showing the inclined treadmill

authodizer@doktrock· May 26

Current status. Geology connection - the murdered husband Dietrichson was in the oil business

Movie poster for Double Indemnity. Starring Fred MacMurray, Barbara Stanwyck, Edward G Robinson. Illustration of a man, holding a handgun, and a woman embracing. Another man looks askance.

authodizer@doktrock· May 21

Current status - 72nd Institute on Lake Superior Geology conference. This year, in Thunder Bay, Ontario

Conference room, with a screen showing Precambrian assembling of North American continental fragments

Booklet cover:
72nd ANNUAL MEETING
Thunder Bay, Ontario - May 21-22, 2026
INSTITUTE ON LAKE SUPERIOR GEOLOGY
Part 1 - Program and Abstracts

w photos of outcrops

Rock samples laid out including ore samples

authodizer@doktrock· May 20

The Mississippi River at Grand Rapids, Minnesota

View of a shallow river with leafy banks. It's reflecting a blues sky and fluffy clouds

authodizer@doktrock· May 17

News story on a significant earthquake in Uzbekistan, 50 years ago, May 17, 1976 (Fargo-Moorhead Forum archives). Mentions the Medvedev scale, apparently now the the MSK or MSK-64 scale. Also, the first page of a scientific paper on it, from 1980. ⚒️🧪 #OTD

Part of a news story:
MOSCOW (AP) - A severe earthquake struck a wide area of Soviet Central Asia today and caused "serious damage in a number of places," officials reported.
Ine three largest cities in the region — Tashkent, Bukhara and Samarkand - reported no casualties and virtually no damage, but communications were cut with the town of Gazli and some other small communities that received the brunt of the quake's force.
The earthquake, centered in the sparsely populated Kulzhuktau mountain range some 300 miles west of Tashkent, was much more powerful than the one which devastated parts of northern Italy early this month.
The Tass news agency said
"prompt measures are being taken to eliminate the aftermath of the quake and to give relief to the quake victims."
The jolt had a force of 9 on the 12-point Soviet Medvedev scale.
In Washington, the U.S.
Geological Survey reported the tremor reached 7,2
on the
open-ended Richter scale, which would be "several times bigger than the Italian earthquake in terms of energy." A quake with a reading of 7 on the Richter scale is capable of widespread, heavy damage.
The Italian quake, in which more than 900 are known dead,
registered between 6.5 and 6.9 on the Richter.
Seismology officials in Tashkent said Gazli, which has a population of about 8,000, was unreachable by ...

Bulletin of the Seismological Society of America, Vol. 70, No. 5, pp. 1715-1736, October 1980

FAULTING PROCESS OF THE MAY 17, 1976 GAZLI, USSR EARTHQUAKE
By STEPHEN HARTZELL

ABSTRACT
The May 17, 1976 Gazli earthquake (m, = 6.2, Ms = 7.0) has both seismological and engineering importance. Waveform modeling of long-period IDA Rayleigh waves, and WWSSN long- and short-period body waves indicates a thrust mechanism with strike N40°E, dip 54°SE, and rake of 78°. The moment is estimated to be 1.6 × 102 dyne-cm; the fault area, 150 km°; the average dislocation, 3.3 meters; and the average stress drop, 200 bars. Strong directivity effects due to a propagating rupture are present in both the long- and short-period teleseismic P waves. The data are not adequately explained by a simple point source, and require a three-dimensional, finite-source model. The relative amplitudes of P and pP at both long and short periods are used to deduce that the rupture started at a depth of 15 km and propagated almost entirely unilaterally upward, with an average rupture velocity of 2.0 to 2.5 km/sec. Simultaneous deconvolution of long- and short-period P waves reveals a complex, azimuthally dependent, source-time function. Finite-source models further suggest that a major part of the faulting was concentrated at depth, below 7 km.
The strong-ground motion within 10 km of the fault is characterized by unusually high-amplitude (1300 cm/sec?), high-frequency (10 Hz) accelerations and low-amplitude (10 cm), low-frequency (0.8 Hz) displacements. Synthetic Wood-An-derson records computed from the accelerograms give a local magnitude, Mr, of
6.35. The duration and character of the strong-ground motion is consistent with a rupture propagating upward in the general direction of the station.

INTRODUCTION
On April 8 and May 17, 1976, a pair of destructive earthquakes occurred in the Kyzylkum Desert in Uzbekistan, USSR, near the small settlement of Gazli. Gazli is ocated about 90 km northwest of the …

authodizer@doktrock· May 15

Still thinking about those delicious Steak Frites at Little Bad Wolf in Andersonville from over a month ago - highly recommended #Chicago

A curved brass colored sign over an entry that says LITTLE BAD WOLF. It's dark out and the sign is illuminated from above.

authodizer@doktrock· May 1

Evergreen