Thursday 22 August 2013

Recrystallized Sponge & Coral

  1 - This piece i believe is Recrystallised sponge.
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  5 - This larger piece i believe is recrystallized Coral.
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  9 - The pieces seem to be made up of Calcite, a lot of crystals are clearly visible.
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  12  I now believe the crystals are part of an Aragonite recrystallisation process that basically involves the mineral soaking into the original limestone, and replacing it.     
Nodules and minerals from the Mesolithic gravel ... - history of a beck
 
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Sunday 18 August 2013

Stone tool & Preseved leather

 1 This preserved leather was found by myself at a location on the banks of the river Leven, on the boarder of Cleveland and North Yorkshire.

 2 - It has the same appearance and needle marks as previous preserved material I have found, in all of the deep beck valleys of south west Cleveland.  HISTORY OF A BECK: Preserved leather

 3 - As ive stated before I have no idea of the age of these pieces of preserved leather, but i am sure all are hand made and had ornamental stitching attached.

 4 - Note the polished finish on the leather.

 5 - This slate has been shaped and had a hole bored into it, again I have no idea of its age, I can only imagine it as some kind of fishing tool ?

 6 - Note the wear marks toward the right as viewed.

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 8 - The tool was found close to the leather although this in no way links them i.e. the leather could have travelled far, the stone probably not far.
 
 
 
 
 

Wednesday 14 August 2013

Trassic sand ripples descovered River Leven

I decided to go back to the river  Leven on the boarder of Cleveland and North Yorkshire today to try and discover where the sand ripple fossil my daughters had found earlier had come from.

1 The red outline marks the preserved Triassic sand ripples

 2 The white outline shows one of the preserved Triassic sand ripple sections.

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 4 Mercia mudstone above the sand ripple fossils

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 6 The sand ripple fossils seem to run in a west to east direction although I can not be totally sure, as I had no compass.

 7 - The river has cut through the sand ripple layer many years ago but slabs can still be found in the river.

 8 - The black outline shows the sand ripples exposed from the upper Triassic deposits, at least 5 metres in depth.

 

 9 The yellow outline shows the excavated  sand ripples to the left.
 
 
 

Monday 12 August 2013

Fossil triassic sand ripples

My Daughters found these pieces at the weekend, ime sure there Triassic sand ripples .



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 7 - The larger piece has been discoloured by the river and weathering, and may even have a secondary mineral coating,  but after breaking an under layer free I can say it is certainly Mercia mudstone.


 8 - The examples  in images 8 - 10 show Triassic fossil sand ripple marks from North America, I have not yet viewed a Triassic example from the UK.


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 11- This image shows how the earth looked at the approximate time the sand ripples were made. 

Saturday 10 August 2013

Marton West beck ( Fairy Dell ) deposits including gravel bed

 1- The grey organic clay is outlined in red


                                                                                   
 2 - I could be wrong but I believe the deposits above the gravel bed are laminated. 

3 - Close up of the grey clay containing preserved organic material including Hazel nuts.

 4 - The gravel bed is outlined in black, as with all other locations note how flat it is, and its depth averages 250 - 300 mm thick as at most other locations.

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 6 - The gravel bed is outlined in black

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 10 - The gravel bed is outlined in red with the grey clay containing preserved organic material outlined in black.

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