Field Trip to Ketton Quarry
Saturday September 9th | 10:00 am to 4:00 pm
Above is a Asteracanthus magnus tooth in situ found by one of our members from a organised field trip to Ketton Quarry.
Ketton Quarry is over a mile wide – its size has to be seen to be believed. The rocks here contain ammonites, corals, brachiopods, bivalves, fish and reptile remains, and much, much more this is a superb location to visit.
This huge quarry presents an opportunity to collect fossils from many different beds (see above). Gypsum is also quite common here. Ketton Quarry also contains one of the most fascinating faults of its kind in the UK and has recently been designated SSSI status.
The quarry is too big to completely cover in one trip. It is huge and is still growing. The best area to search in is the Blisworth Limestone, which is part of the Oolite series. Ammonites can be found, but shells, corals, echinoids, sharks’ teeth and bones are more common. Dinosaur footprints have been seen, along with fragments of their bones.
The quarry shows the finest section of Bajocian (Jurassic ~175mya) to Bathonian (Jurassic ~165mya) strata currently available in inland Britain. Current and temporary exposures have allowed the whole of the Great and Inferior Oolite (Aalenian to Bathonian), and the Kellaways Beds (Callovian) to be seen and the strata are nearly horizontal.
The lower quarry exposes the Lincoln Limestone Formation (Bajocian), while the floor of the upper quarry is formed by the top of this formation. The upper quarry is in the Rutland Formation. At the very top of the exposures is the base of the Oxford Clay, meaning that the entire of the Middle Jurassic can be seen at Ketton Quarry. (Note that recently, a sump hole in the middle of the quarry has revealed Upper Lias mudstones and more.)
Directions : ♦ You need to head towards the geological trail at Top Grange Quarry (see our guide to this site). From the main road from Stamford through Ketton (A6121), go past the large Castle Cement Works, which is the main entrance to the quarry.
♦ Turn into the Ketton Business Park road and follow it all the way down, where you will see a small car park on the left, and the geological trail. There is an entrance to the quarry just past the start of the geological trail. This is a working quarry, so you will need permission to enter.
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.
Mandatory Equipment: Eye protection, Hard Hats, boots or wellies suitable for quarries, Orange Hi-Vis Vests.
Equipment: Generally a geologist’s pick, trowel, chisels and spade. There is plenty of smaller fossil material, so a magnifier or loupe comes in handy and, as much of the material is quite fragile, bring tissue, tape and bags. A packed lunch, Sun protection is advisable if it is a hot day, plus sufficient drink.
For those who are NOT members of the Stamford and District Geological Society. And wish to go on this particular Field Trip or any of our Field Trips and “Exclusive” member’s only Field Trips.
Then please apply for membership below.
*Important note : If you wish to leave early from the site, then please let one of the field trip leaders know before you do so*
“Members are reminded that they cannot take part in field trips without an up-to-date membership card.
This is a requirement under our third party insurance cover. Note that this does not cover members personally and they are responsible for their own safety.”
Please note that entrance to this Working Quarry is Strictly Prohibited unless in association with a Geological Society such as the SDGS or other.
With all field events if you haven’t done so already please will Members. Let our Field Secretary Kenny Nye know at least 10 days in advance so we can cater for numbers this will be the ONLY WAY you will get registered as wishing to attend.
This field trip can usually cater for 15 persons but maby a few more if demand is high.
Members should appreciate that they are responsible for their own safety.
The society’s insurance is against 3rd parties.
The SDGS has the right to cancel or reschedule a field trip with as much notice as possible. In the unlikely event of cancellation, all registered participants will be notified by email and offered to join alternative field trips. If a fossil hunt is cancelled on the day of the event due to unforeseen circumstances such as extreme weather, SDGS will not be able to accept responsibility for any additional costs or inconvenience resulting from the cancellation.
You can cancel your place at any point before a fossil hunt, the more notice given the better, if possible.
Additional information about Ketton Quarry at this link provided : Ketton Quarry.
Assessment: All attendees must familiarize themselves with the Risk Assessment below.
PLEASE DOWNLOAD AND READ THE RISK ASSESSMENT FORM HERE