Mercia Rocks
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Mercia Rocks OUGS West Midlands Branch Newsletter Issue No 2 (2014) June 2014 Examining the Upper Ludstone near Bridgnorth Shorpshire Branch Officers Contents Branch Organiser – Sandra Morgan Branch Organiser’s report p 2 Branch Secretary - Vacant Field trip adverts p 3 Branch Treasurer- Susan Jackson Field Trip programme 2014 p 4 Newsletter Editor – Susan Jackson Field trip report p 5 Branch Committee Random chippings from the p 8 Jo Barnett, Patrick Joyce, Ian Kelly internet Other OUGS news p 10 If you would like to join the Other items p 11 committee please do get in touch Other Society Events p 12 [email protected] 1 [email protected] Branch Organiser’s Report Dear all, The field trip season is now well underway, and there are plenty of interesting events to choose from! The first of our West Midlands field trips this year took place on Sunday 23 March. This was a geological walk around Warwick University campus organised by Patrick Joyce, led by Martyn Bradley, and attended by 8 participants. As in previous years, Martyn gave us a very knowledgeable and interesting tour. The university campus has a variety of geological exposures dating from the Carboniferous and Permian, notably Tile Hill Mudstone, Kenilworth Sandstone, and Gibbet Hill Conglomerate. We were also able to observe drift deposits and erratic pebbles. Thank you to Patrick for organising this trip. Our second trip, led by Alan Richardson, took place on Sunday 11 May to Quatford, Bridgnorth and Upper Ludstone, in Shropshire. This trip was attended by ten participants and used observations from the three sites as evidence for relative chronology. This was an excellent opportunity for participants to carry out some practical geology supported by Alan’s helpful tutor ing. We developed our field recording techniques, and improved our skills in sketching, measurement, observation and analysis, while enjoying geological detective work! See the trip report in this newsletter. The Society AGM was held in Edinburgh on 29 March. Alongside the AGM was a weekend of activities which included the Geoff Brown memorial lecture, the Moyra Eldridge photography competition, the Society dinner, and a choice of field trips! There is a report on the AGM in the May edition of the Society newsletter. Some main items at the AGM were the introduction of our new OUGS President, Tom Argles, Sue Vernon’s retirement as OUGS Secretary and the election of Don Cameron as incoming Secretary, and a motion, carried by the majority of delegates, to disaffiliate from OUSA. On Sunday morning I joined one of the field trips and enjoyed a misty walk below the Forth Bridge to explore the varied geology of South Queensferry. We have two more West Midlands branch field trips in the next few weeks. The first will take place on Wednesday 25 June, led by David Bate of BGS. This is a geological walk around Nottingham University campus, followed by a visit to the headquarters of the British Geological Survey at Keyworth. Then on Saturday 12 July we have a visit to Earl Sterndale in Derbyshire, led by Joe Jennings. There are details of both of these trips and an overview of our programme for the year in this newsletter. Finally, a reminder about the Society Symposium which will be held this year at Canterbury on 15-17 August. This year’s symposium has the theme “Marine Geotales” and includes a variety of lectures and field trips. See the notice in this newsletter and detailed information on the website at http://ougs.org/society_events/details.php?id=14&&branchcode =ouc Best wishes Sandra [email protected] 2 [email protected] Forthcoming Field Trips Wednesday 25th June 2014 University of Nottingham ‘Rock around the Campus’ geological trail and the British Geological Survey, Keyworth, Nottinghamshire Leader David Bate BGS In the morning we will take a walk around the University of Nottingham’s ‘Rock around the Campus Geological Trail’ http://www.nottingham.ac.uk/estates/documents/groundsgeologocalwalk.pdf In the afternoon we will have a tour of the BGS site to include the Library, the National Geological Repository (core, fossil, petrology collections etc.) the National Geological records Centre and the new Geological time walk. There will also be time to visit the BGS shop. http://www.bgs.ac.uk/contacc.sites/keyworth/geological walk/home.html Unfortunately the BGS is not open at weekends so this is a mid-week trip only. Places may be limited so please register your interest if you are thinking of attending. Contact Sandra Morgan: [email protected] th Saturday 12 July 2014 Earl Sterndale and Chrome Hill, Derbyshire Leader Joe Jennings (OU tutor) Join us on a walk from the pretty upland Peak District village of Earl Sterndale via the Jericho Quarry to the famous carboniferous reef knoll at Chrome Hill. This area gives an opportunity to look at carboniferous shelf limestone and some reef limestone, both containing associated fossil assemblages. Traces of mineralisation can also be observed. Includes some great scenery. Contact: Susan Jackson, [email protected] 3 [email protected] Field Trip Programme 2014 If you would like to attend any WMOUGS events please contact the Trip Organiser for full details. If you have difficulty in getting there please also let the Trip Organiser know as it may be possible to arrange a lift with another participant. There is a nominal fee of £2 on day trips (unless otherwise stated) to cover leader’s expenses. Always wear appropriate clothing and boots. Please note that it is a requirement that hard hats are now worn when examining rocks faces. Yellow jackets may be required in some quarries. Please check the branch’s website (http://ougs.org/index.php?branchcode=wmi) for the most up to date information. Dates for your diary. 25th June British Geological Survey, Keyworth, Nottinghamshire Leader: David Bate BGS See advert for full details Contact Sandra Morgan: [email protected] 12th July Earl Sterndale and Chrome hill, Derbyshire Leader: Joe Jennings (OU tutor) See advert for full details Contact: Susan Jackson, [email protected] 20th Sept Ragged Stone Hill, South Malverns, Worcestershire Leader: John Payne Following last year’s successful trip to the Malverns John has agreed to lead us on a trip to Ragged stone hill and the surrounding area in the south of the Malvern range. Contact: Susan Jackson, [email protected] Oct Beginners day at the Ercall Quarry, Shropshire Leader: Ian Kelly This site is perfect for beginners and the more experienced with extrusive and intrusive continental and oceanic volcanics, a very visible strike/slip fault, igneous/sedimentary contact and a half billion year old beach. Contact: Ian Kelly [email protected] Each person attending a field meeting does so on the understanding that he/she attends at his/her own risk. The OUGS has Public Liability Insurance Cover for field and indoor meetings, but Personal Accident Cover and Personal Liability Cover remain the responsibility and personal choice of the participant. There may be an element of appropriate cover included in house insurance or in travel insurance: although OUGS activities are not particularly dangerous, members are advised to check whether exclusions apply to activities in which they plan to participate in case they wish to arrange further cover. An annual travel insurance may be the best solution for any member who regularly attends field events: this again is a matter of personal choice. 4 [email protected] Field Trip Report Field trip to Quatford, Upper Ludstone and Bridgnorth Sunday 11 May 2014 Sandra Morgan On Sunday 11 May ten participants assembled at Quatford in Shropshire to meet our leader, Alan Richardson, for a day of practical fieldwork. The aim of the day was to “develop field investigation skills, focusing on the relative dating of sedimentary formations”, in other words, making observations, recording observations, and making interpretations grounded in the evidence we had found. The field trip focused on three locations near Bridgnorth in Shropshire. The summary circulated beforehand by Alan informed us that “The activities will involve field sketching, dip and strike measurements, lithological description and basic aspects of sedimentological logging. It will then be possible to apply the principles of superposition, cross-cutting relationships, included fragments and lithological correlation to establish a relative chronology and environmental interpretation for the three sites.” This sounded quite ambitious, especially to those of us who were not at all confident about making field sketches or using compass clinometers! But we soon found that Alan would lead us through the basics of these techniques, so that before the end of the day we were making sketches and using compass clinometers with greater confidence and competence. Alan was very keen that we should not start with what was known about the geology of the location, because this would be likely to influence what we expected to see. Rather than give us the “answers”, he encouraged close observation and helped us to develop the skills we needed. Location 1: A442 Road Cutting, Quatford, SO738906-7 At this location, our first task was to observe and then draw a field sketch of the road cutting exposure. Alan gave us helpful guidance for starting our sketches, asking us to observe the big picture first, and demonstrating for us on his portable whiteboard how to determine the relative width and height, draw a frame for the sketch and then outline the main features. Alan had provided us each with a copy of his Pocket Guide to Geological Field Recording which included useful advice about what information to include in our titles, labels and scales.