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Darren

The Tertiary igneous province of N.W. Scotland ( review )

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Thank you to those and DR Ian Sutton who ventured out again on another chilli night to participate in our final winter talk of the year.

Topics regarding Geology always leave me google eyed but the facts, with humour, coupled with the scenarios that Ian created made this evening thoroughly enjoyable.

It was a real treat as Ian took us though his slideshow to view phots of members past and present on one of his many geological trails.

To hear about Alan Dawn constructing a makeshift stretcher to collect ammonites and belemnites and to commandeer two members to carry it for him brought a smile to all those involved.

And would you have guessed (I certainly didn’t) that curling stones come from the “Ailsa Craig”.

Ailsa Craig

scottish curling team

I hope Ian can visit Tinwell Village hall again next year….those glacial and landslide photos would be great to see again.

Regards,

Darren.

The Stamford Stone Trail written by Alan Dawn

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This leaflet The Stamford Stone Trail has been bought to my attention by one of the Stamford and District Geological Society’s members. I thought you would like to see it , so have put it on the website here for you to read..

p.s. Thank you David.B

Regards,

Darren.

*It was another fine evening at the SDGS Tinwell Winter Talk*….with some mysterious stones to ponder over..!

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The Mysterious Stone :

rock found farmers field (3)

rock found farmers field (2)

rock found farmers field (1)

Firstly I’d Just like to say thank you to Dr Stephen Parry for talking to the SDGS. And to all those who attended our Winter Talk for December. It was another great turn out which was very pleasing to see considering the rather chilli winter evening conditions. For me personally id never realised the importance of this topic. And I would thoroughly recommend you access this link STRATEGIC STONE STUDY for more information.

The bite sized nibbles to eat upon arrival with tea and coffee to drink where welcome treats also.

And i would also like to thank Andrew who bought in what he thought might have been a Meteorite ( pictured above ) and was wandering if anyone present at the talk might have been able to shed some light on one of three of his mysterious stones. Which were found just outside Saffron Waldron in a farmer’s field?

Fortunately I have friend who is an avid collector of Meteorites with many years of experience. I took some photos of Andrews’s stone and sent them with as much information as Andrew could give me on his behalf and with consent. If you’d like to read below this is the response I received and have forwarded the information onto Andrew as requested.

“Two things are for sure. One… it doesn’t have any features (at all) that would indicate it to be meteoritic, and two… it didn’t originally come from anywhere near Essex.

it’s almost certainly part of the Essex post-glacial drift geology and I would suspect it came out of the boulder clay. That’s going to make it tough to identify from the appearance and described properties so far, since the drift geology has rocks that have come from as far away as Scotland and Scandanavia. There are also a great many rocks that have come from North Wales, since the Thames is believed to have been a huge river at one time that originally drained the Welsh Mountains before its headwaters were captured by the Severn River.

There are basalts, quartzites, and sarsens (a type of silicified sandstone) plus all kinds of other erratic’s – including a wide variety of igneous rocks. If the colour rendition in the pictures is accurate then it’s too dark to be a sarsen (they get to pale green but not beyond), and I would assume its rich in chlorite or olivine and of igneous origin. All of the likely candidates will be dense rocks. From the way it has broken it looks like it might be somewhat foliated and there doesn’t seem to be much difference in weathering colour between the broken and unbroken surfaces. On that basis, I would guess it to be a chlorite-rich schist of some kind. Chlorite is a relatively soft mineral, but the rock types it occurs in will not necessarily also be soft.

Although you describe it as weakly magnetised (as opposed to magnetic), that doesn’t narrow it down too much. That will likely be from a secondary mineral, and the only two common possibilities are pyrrhotite and some types of magnetite (the varieties known as lodestone). Either of those might be present in igneous rocks that have green mineralogy. Since pyrrhotite (the mineral itself) is generally only weakly magnetised, there would need to be a lot of it present in the matrix to influence the properties of the rock itself… so I would assume a small amount of secondary magnetite is present. “

Hope to see you at our next Winter Talk:

“BUILDING A HISTORY OF THE GLORY DAYS OF LONDON BRICK”

Regards,

Darren.

* Quarry Personal Protective Equipment regulations for Next Years Field Trips *

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When entering working quarries and due to new strict guide lines regarding PPE (Personal Protective Equipment). Field trip organisers will advise to all members attending the field trip beforehand on appropriate clothing and footwear for the locality, time of year and as recommended Orange Hi-Vis Vests.

Failure by participants to wear recommended clothing and equipment may lead to their exclusion from the meeting. The Stamford and District Geological Society does not automatically provide personal protective equipment.

*Much Wenlock Field Trip Report*

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Here’s a quick group shot of the party before we entered the quarry. I’ve plenty more photos to show everyone as soon as I can.

group shot

Again our group of individuals set of from various parts of the country driving through some heavy persistent rain. With the mind set at (you’re going to get wet on arrival) we all safely arrived at the agreed meeting point.

Where upon arrival we met the husband and quarry owner of our contact Katy Bickerton. He gave us a brief description of the surrounding area about what to expect and where to go…a very nice chap who couldn’t be more helpful.

Katy arrived not long after us around 10.15am we had a discussion about the dos and don’ts and the all-important Health and Safety matters. After that we pretty much had free reign of the quarry where Katy left us to our own devices.

With the all-important trust instilled between both parties we made our way down through an under pass which I think was called from memory (Gorge Tunnel) into the quarry itself.

I forgot to mention the weather was quite sunny after an hour of being there which really bought the best out of everyone and making another fantastic field trip.

We shall most defiantly be back next year.

Here are some scenic photos and some of the fossils semi prepped and in situ that I collected ….don’t forget to add yours when you can.Ive I.D. them the best I can.

Cheers….Darren.

p.s. Thank you Andrew from Shropshire for helping us get our eyes trained into those Trilobites.

Cricoconarida

crinoid head

crinoid head 1

crinoid head 3

Euomphalopterus alatus

fovasitella interpuncta

ketophyllum subturbinatum

limestone plate

Strophomenida

trilobite

unknown coral 4

unknown coral

Unknown corals

unknown coral 14

unknown coral 14

unknown coral 15

unknown coral 16

unknown coral 17

unknown coral 18

Atrypa reticularis 1

Atrypa reticularis 2

Atrypa reticularis 3

Atrypa reticularis 4

Atrypa reticularis 5

Atrypa reticularis 6

Atrypa reticularis 7

Atrypa reticularis 8

Atrypa reticularis 9

Atrypa reticularis 10

Atrypa reticularis 11

Atrypa reticularis 12

Atrypa reticularis 13

Atrypa reticularis 14

bivalves

coral 1

coral 2

coral

Cricoconarida 1a

crinoid head 1b

crinoid head 2c

Dawsonoceras annulatum

entrance to quarry

Favosites goathlandicus 1a

Favosites goathlandicus 1b

Favosites goathlandicus 1c

heliolites interstinctus anterior view

heliolites interstinctus posterior view

Ketophyllum subturbinatum 1a

Ketophyllum subturbinatum 1b

limestone nodule

limestone plate 1

limestone plate 2 showing Strophomenida

limestone plate 3

maby Rhynchonellidea 1a

maby Rhynchonellidea 1b

maby Rhynchonellidea 2a

maby Rhynchonellidea 2b

maby Rhynchonellidea 3a

maby Rhynchonellidea 3b

maby Spiriferida 1a

maby Spiriferida 1b

path leading to entrance

Poleumita discorus

south quarry 1

south quarry

Strophomenida 2

Strophomenida 3

trilobite 1

Trilobites in limestone

tunnel gorge

unknown coral 6a

unknown coral 6b

unknown coral 7a

unknown coral 11

unknown coral 12

unknown coral 13a anterior view

unknown coral 15a anterior view

unknown coral 16a anterior view

unknown coral 17a anterior view

unknown coral 18a anterior view

unknown coral 19a

Here is a half-prepped trilobite found by “one of our eagled eyed SDGS members “it may be an Acaste downingiae or Acastocephala macrops but until it’s cleaned it we won’t be absolutely sure.

semi-prepped Trilobite

And here some other Trilobites found by the same person that are also a work in progress.

semi-prepped Trilobite 1

semi-prepped Trilobite 2

semi-prepped Trilobite 3

Here’s some more photos kindly sent in from another SDGS member who attended the day.

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Copyrighted Image

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