Caught Nick Zentner's live stream from the Penrose Conference in the wilds of Idaho. #Geology
Munchin' on left-over BBQ beef.
Not having to go outside with the air quality in the 'Very Unhealthy' range. (Heck, last time I open a door to the outside was on Saturday to get the mail.)
There are indications of another magma dyke moving underground beneath the sea near the Reykjanes Ridge to the south of the Reykjanes Peninsula where the last three eruptions occurred.
An earthquake cluster happened a few days ago on the Ridge. Latest chart shows less activity though.
Here's a great alt-country love song about #geology by the Great Lake Swimmers.
Floating over your rocky spine
The glaciers made you, and now you're mine
I was moving across your frozen veneer
The sky was dark but you were clear
Could you feel my footsteps
And would you shatter, would you shatter, would you
Pretty pink pebble - likely dragged South, from County Galway, by glaciers during the last ice age before being deposited here when they melted over 12,000 years ago. County Clare, Ireland.
My mom's uncle was an amateur geologist. Him and his wife drove around the country collecting minerals. When I was 8 he gave me this sampler. My grandpa made the box.
Subbottom profiler data showing conformal strata above a 483 m (1585 ft) wide ancient river channel 18 m (59 ft) below the current seafloor. The channel margins appear to have been truncated by sea transgressions/regressions. Sea level charts suggest exposure ca. 14,300 before present (BP). The same sea level chart shows another possible exposure ca. 12,600 - 13,100 BP. #geology#archaeology
Novel research challenges the established theory that the Pre-Cambrian Avalon explosion, the era roughly 685-800 million years ago in which multicellular organisms began to proliferate in Earth's oceans, was due to an influx of oxygen into those oceans.
Ancient rock samples from the Omani mountain range instead suggest oxygen levels at that time were actually 5-10 times lower than today:
Hi folks!
I'm back. I've been out of cell service for the past few days because we were visiting Badlands National Park as well as the Black Hills for a birthday trip!
I've spent the last 4 days identifying every single geology!
We went fossil hunting one morning and found several dozen fossils, including yours rad jawbone! I got a badge for reporting them to the rangers instead of collecting them. I'll update you all when they go investigate my reports. #geology#NationalPark#Fossils
Oligocene/Early Miocene Catahoula Quartzite (silicified sandstone) vs Eocene Tallahatta Quartzite (silicified sandstone). Catahoula sandstone generally contains larger sand grains than it's eastern cousin. Catahoula rarely has the white splotchy chemical weathering like Tallahatta. Catahoula is found from east Texas border to extreme western Mississippi, while Tallahatta goes from SE Mississippi to extreme SW Georgia. #geology
Depressingly, scientists have singled out a small body of water in Canada as "ground-zero" for Earth's proposed new geological epoch: Anthropocene, or "The Age of Humans".
Sediment found here laced with microplastics, ash from hydrocarbons, and plutonium from hydrogen bomb tests may be the single best repository of the impact humans have had on Earth.