I’m documenting some different things at Wikimedia Commons for anyone to view or use.
Wikmedia Commons uses an odd video file format that may not play on your device. It’s called .webm. These videos open and operate reliably in the Firefox broswer, my iPad, but not my iPhone.
Editing or otherwise working with a Wikimedia Commons hosted video may prove fruitless unless you have a commercial converter. I use Movavi products for all of my video work. They are very cheap compared to anything Adobe and are far simpler to use.
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Went back to the desert wash near Jean, Nevada where I had found my first geode. Was looking for more. Didn’t find any but I may have found my second and third brachiopod or fossilized shell.
The first example is pretty convincing but the second is a mite odd. I see by a Google image search that brachiopods are often distorted.
Too many times a publication or a web page presents perfect specimens instead of what is usually found in the field. I’ve posted the images to the Fossil Forum on FB, I’ll see what they say.
Phivos Martin Broedsgaard-Raptis from the FB Fossil Page responded to the second specimen. “We call it a ‘mussel fracture’, it comes as a resulted of a concentrated force and radiates outwards from the point of contact.” I am assuming that something injured this poor mussel and the resulting damage was captured in stone.
Or, perhaps not. There is a geological process called plumose fracture. See the Wikipedia Common photo below. Okay, what do we have? A biological phenomenon or a geological one? I’m leaning to biologic because the rock is round and not a square or chip fragment. —
— OR — Fig. 3.20f: Plumose structure and rib marks on an opening fracture in PMMA. Laboratory experiment (Rummel, 1987) on hydraulic fracturing induced fracture from pressurized cylindrical hole at left. - David D. Pollard —
— I stumbled upon this old navigation aid for pilots near Jean. After some research on the web, I found arrows like this are scattered across the country. They were used along with beacons to help pioneer mail delivery by air in the 1920s and 1930s. The website below is fascinating. Lists arrows in every state along with many details. Tons of photos of arrows and their history. Do you have one in your backyard?
A little from that website:
“These giant arrows were called Beacon Stations and helped guide the pilots of early airmail flights across the nation. They were at the base of 50 foot skeleton towers that had a 24″ or 36″ rotating beacon and in the early days painted Chrome Yellow. Where electicity was unavailable they had a generator shed on the feather end of the arrow to power the beacon. The site number was painted on one side of the roof of the shed, the other side had the airway.They pointed to the next higher numbered beacon station, directing the pilot along his route. All arrows pointed east on the west-east airways and north on the south-north airways. They were built between December 1926 and November 1932, when metal arrows became the standard.” —
— Quick handheld iPhone photography, apologies. Rock found in desert wash. On the left, the rock glows orange (calcite), green (quartz) and a little bit of white from an unknown mineral coating. This under short wave. On the right, the green and white disappear completely under long wave while the orange stays strong. — Follow me on Instagram: tgfarley
November 12, 2022 Update: The Right People are on it! Cleanup scheduled soon.
Toxic waste dump in a culvert underneath the frontage road to 7 Magic Mountains and Jean, Nevada. I have reported it to Clark County and will follow up. I want to make sure this leaking, awful mess of used oil and possibly diesel waste is taken care of before it further contaminates the desert wash this culvert leads to.