Jim Wood
@sierrageology.bsky.social
Fieldtrips, Sierra Tertiary geology, railroad history, dry stone construction, lime kiln preservation, travel, cultural history of all sorts
This critter has been roaming our close area for a couple of months.
Today, Rugby (Corgi) caught sight of it on our driveway and laid chase.
They were both gone into the brush without a sound. Normally, he barks his head off at intruders...deer, turkeys.
A bit alarming, actually.
Relief, he's back
Today, Rugby (Corgi) caught sight of it on our driveway and laid chase.
They were both gone into the brush without a sound. Normally, he barks his head off at intruders...deer, turkeys.
A bit alarming, actually.
Relief, he's back
November 1, 2025 at 1:26 AM
This critter has been roaming our close area for a couple of months.
Today, Rugby (Corgi) caught sight of it on our driveway and laid chase.
They were both gone into the brush without a sound. Normally, he barks his head off at intruders...deer, turkeys.
A bit alarming, actually.
Relief, he's back
Today, Rugby (Corgi) caught sight of it on our driveway and laid chase.
They were both gone into the brush without a sound. Normally, he barks his head off at intruders...deer, turkeys.
A bit alarming, actually.
Relief, he's back
Steve Webb and Amin Taha have been promoting the environmental values of building with stone for some years now with previous projects. See 'Back to the Stone Age' in the Guardian.
Why we should be building in stone
- Stone: The ancient material making a comeback www.bbc.com/news/article...
- Stone: The ancient material making a comeback www.bbc.com/news/article...
Set in stone: The old building technique makes a comeback
Could stone be the environmentally friendly way forward in the construction industry?
www.bbc.com
October 29, 2025 at 4:24 PM
Steve Webb and Amin Taha have been promoting the environmental values of building with stone for some years now with previous projects. See 'Back to the Stone Age' in the Guardian.
Here's my grandson's [6yo] collection of stones from today's scouting around the house.
I showed him the stone vending machine. He thinks it is very cool. [Hell, I think it is very cool!]
He wants to go there to get some stones out. I said, maybe later today.
🤣
I showed him the stone vending machine. He thinks it is very cool. [Hell, I think it is very cool!]
He wants to go there to get some stones out. I said, maybe later today.
🤣
October 11, 2025 at 10:41 PM
Here's my grandson's [6yo] collection of stones from today's scouting around the house.
I showed him the stone vending machine. He thinks it is very cool. [Hell, I think it is very cool!]
He wants to go there to get some stones out. I said, maybe later today.
🤣
I showed him the stone vending machine. He thinks it is very cool. [Hell, I think it is very cool!]
He wants to go there to get some stones out. I said, maybe later today.
🤣
Here's a feature of the Native Americans' occupation of the Sierra Nevada range that has escaped my attention ...salt basins carved into the granite bedrock. check it out.
@woodchucklove.bsky.social
www.youtube.com/watch?v=4bhO...
USGS pub on the topic... pubs.usgs.gov/sir/2017/505...
@woodchucklove.bsky.social
www.youtube.com/watch?v=4bhO...
USGS pub on the topic... pubs.usgs.gov/sir/2017/505...
September 26, 2025 at 11:06 PM
Here's a feature of the Native Americans' occupation of the Sierra Nevada range that has escaped my attention ...salt basins carved into the granite bedrock. check it out.
@woodchucklove.bsky.social
www.youtube.com/watch?v=4bhO...
USGS pub on the topic... pubs.usgs.gov/sir/2017/505...
@woodchucklove.bsky.social
www.youtube.com/watch?v=4bhO...
USGS pub on the topic... pubs.usgs.gov/sir/2017/505...
I have to share a special moment this morning...
Upon entering the house of my neighbor friend, he asked to leave the doors open due to a kestrel flying in and having difficulty escaping.
I finally just grabbed it and launched it outside.
Zoom in to see its face.
Upon entering the house of my neighbor friend, he asked to leave the doors open due to a kestrel flying in and having difficulty escaping.
I finally just grabbed it and launched it outside.
Zoom in to see its face.
September 18, 2025 at 5:17 AM
I have to share a special moment this morning...
Upon entering the house of my neighbor friend, he asked to leave the doors open due to a kestrel flying in and having difficulty escaping.
I finally just grabbed it and launched it outside.
Zoom in to see its face.
Upon entering the house of my neighbor friend, he asked to leave the doors open due to a kestrel flying in and having difficulty escaping.
I finally just grabbed it and launched it outside.
Zoom in to see its face.
I've got something here that will take care of your infestation.
September 4, 2025 at 4:23 PM
I've got something here that will take care of your infestation.
"British geology"?
Me thinks that Sedgwick misspoke.
Should have read "Father of Geology".
Me thinks that Sedgwick misspoke.
Should have read "Father of Geology".
William Smith memorial in Churchill, “Father of British geology” to quote his Cambridge professor Adam Sedgwick from Dent.
August 30, 2025 at 2:02 PM
"British geology"?
Me thinks that Sedgwick misspoke.
Should have read "Father of Geology".
Me thinks that Sedgwick misspoke.
Should have read "Father of Geology".
Reposted by Jim Wood
🔔 The California Geological Survey is hiring a SEISMOLOGIST. 🔔
Duty station is in Sacramento. Position closes September 1st so apply now!
For duty statement, salary ranges, additional information and to apply, please visit calcareers.ca.gov/CalHrPublic/...
Duty station is in Sacramento. Position closes September 1st so apply now!
For duty statement, salary ranges, additional information and to apply, please visit calcareers.ca.gov/CalHrPublic/...
Staff Seismologist
Looking to make a difference? Join our strong and mighty workforce. We offer benefits and growth opportunities and impact the lives of millions of Californians.
calcareers.ca.gov
August 22, 2025 at 5:00 PM
🔔 The California Geological Survey is hiring a SEISMOLOGIST. 🔔
Duty station is in Sacramento. Position closes September 1st so apply now!
For duty statement, salary ranges, additional information and to apply, please visit calcareers.ca.gov/CalHrPublic/...
Duty station is in Sacramento. Position closes September 1st so apply now!
For duty statement, salary ranges, additional information and to apply, please visit calcareers.ca.gov/CalHrPublic/...
Reposted by Jim Wood
The California Geological Survey is hiring a Branch Chief to oversee 4 key programs in the organization:
🔹Forest and Watershed Geology
🔹Mineral Resources
🔹Geologic and Landslide Mapping and
🔹Burned Watershed Geohazards
Deadline to apply is 8/28.
calcareers.ca.gov/CalHrPublic/...
🔹Forest and Watershed Geology
🔹Mineral Resources
🔹Geologic and Landslide Mapping and
🔹Burned Watershed Geohazards
Deadline to apply is 8/28.
calcareers.ca.gov/CalHrPublic/...
Branch Chief - Watershed and Climate Resiliency
Looking to make a difference? Join our strong and mighty workforce. We offer benefits and growth opportunities and impact the lives of millions of Californians.
calcareers.ca.gov
August 14, 2025 at 11:55 PM
The California Geological Survey is hiring a Branch Chief to oversee 4 key programs in the organization:
🔹Forest and Watershed Geology
🔹Mineral Resources
🔹Geologic and Landslide Mapping and
🔹Burned Watershed Geohazards
Deadline to apply is 8/28.
calcareers.ca.gov/CalHrPublic/...
🔹Forest and Watershed Geology
🔹Mineral Resources
🔹Geologic and Landslide Mapping and
🔹Burned Watershed Geohazards
Deadline to apply is 8/28.
calcareers.ca.gov/CalHrPublic/...
It's great to see this pub make its return. Hey, they even plugged our superb geology field trip for the Cordilleran Section GSA conference next week in Sacramento! See page 39.
The California Geological Survey is thrilled to announce the return of “California Geology Magazine” after a 20+-year hiatus! Read the magazine here: www.conservation.ca.gov/cgs/publicat...
March 27, 2025 at 6:56 PM
It's great to see this pub make its return. Hey, they even plugged our superb geology field trip for the Cordilleran Section GSA conference next week in Sacramento! See page 39.
It IS a gneiss walkway. Wild!
Unusual stone.
Unusual stone.
Wet gneiss walkway in Helsinki center #UrbanGeology feat. My Legs
February 27, 2025 at 9:32 PM
It IS a gneiss walkway. Wild!
Unusual stone.
Unusual stone.
So did I, @pavementgeology.bsky.social !
Perhaps this can be a model for your own podcasts of some of your fav urban geology walks for those of us who aren't able to attend in person. I'd be a regular listener!
Perhaps this can be a model for your own podcasts of some of your fav urban geology walks for those of us who aren't able to attend in person. I'd be a regular listener!
Loved your Urban Geology interview on Geology Bites, Ruth. www.geologybites.com
Geology Bites
www.geologybites.com
February 26, 2025 at 3:16 PM
So did I, @pavementgeology.bsky.social !
Perhaps this can be a model for your own podcasts of some of your fav urban geology walks for those of us who aren't able to attend in person. I'd be a regular listener!
Perhaps this can be a model for your own podcasts of some of your fav urban geology walks for those of us who aren't able to attend in person. I'd be a regular listener!
We are two weeks into the new reign. The drive to Make America Great Again is just beginning. Shame that the electorate was unaware that MAGA translates to the place being run solely by and for the purposes of white men.
Or maybe it did. Everybody is complicit.
Or maybe it did. Everybody is complicit.
Fellow NSA - National Security Agency veterans. Look at what’s happened at the National Cryptologic Museum. They covered up with brown paper the photos of Women in American Cryptology. All in response to President Trump’s anti-diversity executive order.
February 2, 2025 at 4:13 PM
We are two weeks into the new reign. The drive to Make America Great Again is just beginning. Shame that the electorate was unaware that MAGA translates to the place being run solely by and for the purposes of white men.
Or maybe it did. Everybody is complicit.
Or maybe it did. Everybody is complicit.
Reposted by Jim Wood
"We should look after our own people first before helping others".
Perhaps we should look after our own planet first.
Get that right and everything else will flow from that, surely?
Perhaps we should look after our own planet first.
Get that right and everything else will flow from that, surely?
February 2, 2025 at 11:24 AM
"We should look after our own people first before helping others".
Perhaps we should look after our own planet first.
Get that right and everything else will flow from that, surely?
Perhaps we should look after our own planet first.
Get that right and everything else will flow from that, surely?
Yosemite Valley is perfect at this time of year. Fewer visitors.
Glacial features in your face. Bridalviel Creek cascades from a hanging valley.
The Merced River has cut into a combination of ground moraine and glacial outwash.
Light snow overnight. Can't wait to see the valley today!
Glacial features in your face. Bridalviel Creek cascades from a hanging valley.
The Merced River has cut into a combination of ground moraine and glacial outwash.
Light snow overnight. Can't wait to see the valley today!
January 26, 2025 at 4:04 PM
Yosemite Valley is perfect at this time of year. Fewer visitors.
Glacial features in your face. Bridalviel Creek cascades from a hanging valley.
The Merced River has cut into a combination of ground moraine and glacial outwash.
Light snow overnight. Can't wait to see the valley today!
Glacial features in your face. Bridalviel Creek cascades from a hanging valley.
The Merced River has cut into a combination of ground moraine and glacial outwash.
Light snow overnight. Can't wait to see the valley today!
Curbside geology is so convenient. But exceptional features are rare.
#urbangeology ⚒️
granite kerbstone with a dioritic xenolithe, the xenolite is cut and offset by a younger fault.
The granite is probably from the Bohemian Massive.
granite kerbstone with a dioritic xenolithe, the xenolite is cut and offset by a younger fault.
The granite is probably from the Bohemian Massive.
January 20, 2025 at 10:46 PM
Curbside geology is so convenient. But exceptional features are rare.
Reposted by Jim Wood
⚛️🧪⚒️
Is it possible that #Bluesky corps be funded/owned/run a bit like #Wikipedia? If so, would that guarantee its future as a viable tool for academic exchange?
www.dailykos.com/stories/2025...
www.dailykos.com/stories/2025...
The Coming Enshittification of Bluesky
There’s an interesting article about academic Bluesky over at Science Magazine. It’s a brief piece that discusses the strengths and weaknesses of the platform by researchers that use it. Essentially, ...
www.dailykos.com
January 12, 2025 at 6:50 AM
⚛️🧪⚒️
Spectacular!
January 1, 2025 at 4:25 PM
Spectacular!
I love the smoke ring.
Now we’re cooking! I think I’ll call this the “Tahoma Aroma”. LiDAR-derived scale model of Tahoma (Rainier) engineered to fit over a stock “volcano” diffuser. Folks would have to buy diffuser on Amazon for $30, and then this top for $20(?). Whadda ya think?
December 23, 2024 at 6:13 PM
I love the smoke ring.
Interesting. They must have been confident that the stone pillars had good shear strength.
A good one for #urbangeology
A good one for #urbangeology
December 22, 1689, a strong #earthquake hits #Innsbruck in #Tyrol (#Austria).
As a response "earthquake pillars"-reinforced stone pillars made from the local "Höttinger Breccia" & build into the walls to stabilize the buildings-become mandatory.
As a response "earthquake pillars"-reinforced stone pillars made from the local "Höttinger Breccia" & build into the walls to stabilize the buildings-become mandatory.
December 22, 2024 at 5:13 PM
Interesting. They must have been confident that the stone pillars had good shear strength.
A good one for #urbangeology
A good one for #urbangeology
For you geos that incorporate your passion into all seasonal celebrations...
A seasonal repost of my #Geobaubles featuring festive photomicrographs of rocks, minerals and pigments. You can download and print these Christmas tree ornaments from orpiment.wordpress.com/2020/12/20/c...
December 19, 2024 at 4:47 PM
For you geos that incorporate your passion into all seasonal celebrations...
You know know what's aggravating is that orgs that have opened a bluesky account are still largely posting on the other forum. So, to see any of their posts, one has to return to the ash bin. A good example is @cumbriawildlife.bsky.social with 1.1k followers on bsky but not one post! Argh!
December 18, 2024 at 4:02 PM
You know know what's aggravating is that orgs that have opened a bluesky account are still largely posting on the other forum. So, to see any of their posts, one has to return to the ash bin. A good example is @cumbriawildlife.bsky.social with 1.1k followers on bsky but not one post! Argh!
Reposted by Jim Wood
December 6, 1884, aluminum capstone set atop #Washington Monument. You can spot an "unconformity" in the obelisk-from grey pyrite/mica-rich Texas marble to yellow Cockeysville marble caused by a construction stop during the civil war followed by a shortage in the used rocks.
eos.org/geofizz/self...
eos.org/geofizz/self...
December 6, 2024 at 1:23 PM
December 6, 1884, aluminum capstone set atop #Washington Monument. You can spot an "unconformity" in the obelisk-from grey pyrite/mica-rich Texas marble to yellow Cockeysville marble caused by a construction stop during the civil war followed by a shortage in the used rocks.
eos.org/geofizz/self...
eos.org/geofizz/self...
@lakesstiles.bsky.social
Maybe not Cumbria nor even England, but New England. A "turnstile" in a wall along Drift Road in Westport, Mass.
Maybe not Cumbria nor even England, but New England. A "turnstile" in a wall along Drift Road in Westport, Mass.
November 24, 2024 at 11:21 PM
@lakesstiles.bsky.social
Maybe not Cumbria nor even England, but New England. A "turnstile" in a wall along Drift Road in Westport, Mass.
Maybe not Cumbria nor even England, but New England. A "turnstile" in a wall along Drift Road in Westport, Mass.
November 24, 2024 at 5:26 AM