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micklemas

Cambrian Rockhound
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Posts: 20
Reply with quote  #1 
Apologies if these are not classed as recent but they are unreported on here and this old rock hound has finally got the bug enough to dig them from the vaults.

Saltwick Bay ~4 years ago
It took me about a year to clear most of the matrix off with a small electrical screwdriver. If only I had known about prepping tools then. 

20180814_154036.jpg  20180814_154127.jpg  20180814_154144.jpg  20180814_154237.jpg  20180814_154258.jpg 
Between Flamboro Head and Hornsea ~3 years ago.
I am not sure exactly which beach but I do recall it was torrential rain and the car park was in a small wood. A small steep slope led to the beach that was covered by mud rushing down from the trees. At the bottom of the slope the chalk cliffs were on the left hand side with plenty of chalk nodules on the beach. On the right seemed more rock than chalk. These were lying at the bottom of these cliffs. (I know the preppers are going to go nuts but the big one used to be a paperweight on my desk at work and everyone would pick it up and bits would flake off. I had some aerosol yacht varnish which i sprayed it with and since then it has not flaked. Sorry [frown] )

20180814_153320.jpg  20180814_153339.jpg  20180814_153706.jpg  20180814_153724.jpg  20180814_153748.jpg  20180814_153823.jpg  20180814_153842.jpg 
A bivalve which I think is from Saltwick Bay 2 years ago but couldn't guarantee it.

20180814_155917.jpg  20180814_155925.jpg  20180814_155936.jpg  20180814_155946.jpg 

Some wood? again from Saltwick Bay a couple of years ago.

20180814_153136.jpg  20180814_153143.jpg  20180814_153205.jpg 
A breccia and unknown from a unknown location on the Yorkshire coast last year.

20180814_153300.jpg 
20180814_153247.jpg 

Finally 2 pieces of coral found on the same day as those above

20180814_153911.jpg  20180814_153919.jpg  20180814_153932.jpg  20180814_153942.jpg  20180814_153955.jpg  20180814_154005.jpg  20180814_154015.jpg 
That's it I am up to date now...on to the next hunt!!!



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MicroFossilMan

Cambrian Rockhound
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Posts: 650
Reply with quote  #2 
The first ammonite looks like Hildoceras, a Jurassic ammonite. I know what you mean about scraping with a needle point! I have a small electrical gizmo now (the name of which totally escapes me, a senior moment) but it's still slow work. Air abrasion is the way to go, but that ain't cheap [frown]

The paperweight looks like a good example of something called cone-in-cone structure. They can form during the post-depositional hardening process ("diagenesis") of muds and other sediments.

The bivalve is, I think, Nuculana sp.

Your first breccia isn't, it's a limestone (or maybe a mudstone/siltstone), probably shelly. But the second "unknown" might be a breccia. I did even wonder if those black bits were bits of bone! For the record a breccia is any rock that consists of angular fragments in a fine grained matrix. If the fragments, aka clasts, are rounded then the rock is called a conglomerate.

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micklemas

Cambrian Rockhound
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Posts: 20
Reply with quote  #3 
Oh boy another Breccia moment...lol {Lesson learned}
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