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PRODID:-//Hertfordshire Geological Society - ECPv6.15.18//NONSGML v1.0//EN
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X-WR-CALNAME:Hertfordshire Geological Society
X-ORIGINAL-URL:https://www.hertsgeolsoc.org.uk
X-WR-CALDESC:Events for Hertfordshire Geological Society
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BEGIN:VTIMEZONE
TZID:UTC
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TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20200101T000000
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END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=UTC:20221118T080000
DTEND;TZID=UTC:20221118T170000
DTSTAMP:20260404T181245
CREATED:20221118T173045Z
LAST-MODIFIED:20221119T171031Z
UID:9877-1668758400-1668790800@www.hertsgeolsoc.org.uk
SUMMARY:AGM
DESCRIPTION:followed by Talk on Hertfordshire RIGS
URL:https://www.hertsgeolsoc.org.uk/event/agm-followed-by-percy-evans-lecture-on-the-norber-erratics/
CATEGORIES:AGM
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20221110T193000
DTEND;TZID=UTC:20221110T210000
DTSTAMP:20260404T181245
CREATED:20211202T165154Z
LAST-MODIFIED:20221111T163945Z
UID:6629-1668108600-1668114000@www.hertsgeolsoc.org.uk
SUMMARY:The Stegosaurian Dinosaurs
DESCRIPTION:given by Dr Susannah C. R. Maidment (Senior Researcher\, Natural History Museum\, London) \nAbstract:\nStegosaurs are a group of dinosaurs characterized by the possession of two rows of plates and spines that extend from the neck to the end of the tail. They are known from the Middle Jurassic to the Early Cretaceous and have been found on all continents except Australia and Antarctica. Stegosaurs are part of a larger group of armoured dinosaurs\, which also includes the ankylosaurs. Stegosaurs were four-legged plant-eaters and body mass estimates indicate they weighed about the same as a rhino. They were probably slow-moving\, and not capable of running. They had very small teeth and do not appear to have chewed\, but despite this\, their bite forces indicate they could have eaten tough vegetation and small twigs. Several hypotheses have been put forward about the function of the plates of stegosaurs\, but these have proven difficult to test. Different species appear to have had differently shaped plates\, suggesting a role in display\, and perhaps to deter predators. Two stegosaurs are known from North America: the iconic Stegosaurus\, which is known from numerous skeletons from Colorado\, Utah and southern Wyoming\, and the less well-known Hesperosaurus\, represented by just a few specimens from northern Wyoming and Montana. Both are known from the Morrison Formation\, a suite of rocks laid down by rivers and on flood plains about 150 million years ago\, and the two genera appear to have lived at the same time. Over 120 years of sampling in the south of the Morrison basin has failed to find any specimens of Hesperosaurus there\, perhaps suggesting the two genera were ecologically segregated. Although stegosaurs are one of the most iconic dinosaurs\, much remains unknown about their palaeobiology due to their sparse fossil record. \nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/the-stegosaurian-dinosaurs/
LOCATION:over Zoom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2021/12/Stego.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20221013T183000
DTEND;TZID=UTC:20221013T200000
DTSTAMP:20260404T181245
CREATED:20211202T165038Z
LAST-MODIFIED:20221020T085555Z
UID:6627-1665685800-1665691200@www.hertsgeolsoc.org.uk
SUMMARY:The first day of the Cenozoic: Insights from the Chicxulub impact crater
DESCRIPTION:given by Dr. Auriol Rae (Junior Research Fellow in Earth Sciences Trinity College\, University of Cambridge) \nAbstract: \n66 Million years ago\, a 14 km-diameter meteoroid struck the Earth at approximately 20 km/s. This event had a profound influence on the history of life on Earth – causing the extinction of around 75% of all species including all of the non-avian dinosaurs. This impact produced the 200 km-diameter Chicxulub Crater\, located in present-day Mexico. This talk will look at the geological\, climatological\, and biological consequences of the end-Cretaceous impact\, with particular insight from drilling of the crater in 2016 by the International Ocean Discovery Program. Furthermore\, the wider significance of impact crater formation as a planetary geological process will be discussed. \nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/notes-from-deep-time-a-journey-through-past-and-future-worlds/
LOCATION:Oaklands College\, Sapsed Room (SR)\, Oaklands College\, St Albans\, Hertfordshire\, AL4 0XS\, United Kingdom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2021/12/IMG_6412-scaled.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20221007T180000
DTEND;TZID=UTC:20221007T193000
DTSTAMP:20260404T181245
CREATED:20220824T105928Z
LAST-MODIFIED:20220824T110353Z
UID:9626-1665165600-1665171000@www.hertsgeolsoc.org.uk
SUMMARY:GA Lecture
DESCRIPTION:The rise and fall of the last British-Irish Ice Sheet given by Prof Chris Clark.
URL:https://www.hertsgeolsoc.org.uk/event/ga-lecture-4/
LOCATION:Zoom Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220929T160000
DTEND;TZID=UTC:20221002T170000
DTSTAMP:20260404T181245
CREATED:20211021T142151Z
LAST-MODIFIED:20220915T170039Z
UID:5522-1664467200-1664730000@www.hertsgeolsoc.org.uk
SUMMARY:Flamborough Head - Excursion
DESCRIPTION:Paul Hildreth of the Yorkshire Geological Society will lead this 3-day trip to the delights of Flamborough Head. \nItinerary: \nThursday 29 September\nIntroductory talk over drinks at 8pm.\nFriday 30 September\nNorth Landing(Welton/Burnham Chalk boundary and variations in flint form) followed by Selwick’s Bay (Burnham/Flamborough Chalk boundary\, Flamborough Fault zone and syncline) with lunch at local café & free evening.\nSaturday 1 October\nDane’s Dyke and Sewerby (Flamborough Chalk\, Flamborough Sponge Bed\, Devensian stratigraphy and Sewerby Buried Cliff (Ipswichian) with packed lunch & group meal in the evening.\nSunday 2 October\nRSPB reserve at Bempton Cliffs – clifftop walk\, spectacular geomorphology\, fault zone and there should be some seabirds still around with lunch at RSPB Centre. \nParticipants may wish to revisit the HGS June 2021 talk on It’s ‘And Up North – An overview of the Chalk of the Northern Province given by Paul Hildreth and download a fabulous Field Guide from the Members’ Section. \nJanet
URL:https://www.hertsgeolsoc.org.uk/event/flamborough-head-excursion/
LOCATION:Sefton Hotel\, The Sefton Hotel\, Bridlington\, Yorkshire\, YO15 2HX\, United Kingdom
CATEGORIES:Field Trips
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220908T193000
DTEND;TZID=UTC:20220908T210000
DTSTAMP:20260404T181245
CREATED:20211202T164923Z
LAST-MODIFIED:20220909T112855Z
UID:6625-1662665400-1662670800@www.hertsgeolsoc.org.uk
SUMMARY:Understanding large igneous provinces and volcanic rift margins
DESCRIPTION:given by Dr Dougal Jerram (DougalEARTH Ltd) \nAbstract \n\nLarge Igneous Provinces (LIPs) represent some of the largest eruptive episodes on the planet and along with their associated volcanic rifted margins\, they have left a great footprint on the geology of the planet. This talk will present a number of examples from around the globe looking at the scales and occurrences of LIPs and studies into both onshore and offshore volcanic margins. We will touch on the relationship with climate change\, offshore exploration and the possibilities for carbon sequestration. Look at how we can build 3D models of key outcrops and the use of modern day analogues to help unravel their evolution.\n\n\n\n\n\nDougal Jerram (BSc Cardiff\, PhD Liverpool) began his professional career in 1996 with a two-year postdoctoral position at the University of Würzburg\, Germany. In 1998 he returned to the UK and spent 13 years as research fellow\, lecturer and senior lecturer at the University of Durham. In June 2011 he set up DougalEARTH Ltd.\, where he combines his pursuits in consultancy\, media\, research and teaching\, and joined the University of Oslo as a 20% research professor. He has published extensively in the scientific literature as well as penning a number of books for both children and adults including; Victor the Volcano\, Dig to the Centre of the Earth\, Introducing Volcanology\, Volcanoes of Europe\, and The travel Guide the Centre of the Earth\, as well as two of the geological field guide series (Igneous and metamorphic guides).   He has also appeared on the BBC\, National Geographic\, Discovery Channel\, History Channel and Channel 4\, and on many other TV and radio programs\, relating the earth sciences to the general public. In 2006 he received the Murchison Fund by the Geological Society of London for his early career contribution to geology. \nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/understanding-large-igneous-provinces-and-volcanic-rift-margins/
LOCATION:Oaklands College\, Sapsed Room (SR)\, Oaklands College\, St Albans\, Hertfordshire\, AL4 0XS\, United Kingdom
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220806T110000
DTEND;TZID=UTC:20220806T163000
DTSTAMP:20260404T181245
CREATED:20220616T063406Z
LAST-MODIFIED:20220622T165621Z
UID:9120-1659783600-1659803400@www.hertsgeolsoc.org.uk
SUMMARY:HGS Summer Event - Is it flat or bent? The Chalk around Royston
DESCRIPTION:Morning at Royston Cave. Park in one of the town centre car parks & walk to Royston Cave. \nRoyston Cave interior\nCome and explore the amazing Royston Cave; check out the theories and get an update on the latest geological dates produced by the Herts. Geol. Society \nLunch – local pub – The Tally Ho!\, Barkway \nAfternoon visits to Barkway Chalk Pit and Reed Chalk Pit \nBarkway Chalk Pit\nHave a look at some upended Lewes Chalk and see if we can find the Chalk Rock. \nRegister through: haydonbailey@outlook.com Cost £5.00
URL:https://www.hertsgeolsoc.org.uk/event/hgs-summer-event-the-chalk-around-royston/
LOCATION:Royston Cave\, Katherine’s Yard\, Melbourne Street\, Royston\, Hertfordshire\, SG8 7BZ\, United Kingdom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220714T193000
DTEND;TZID=UTC:20220714T210000
DTSTAMP:20260404T181245
CREATED:20211202T164808Z
LAST-MODIFIED:20220715T165857Z
UID:6623-1657827000-1657832400@www.hertsgeolsoc.org.uk
SUMMARY:The Anthropocene: a new epoch of geological time characterised by humans
DESCRIPTION:given by Prof. Mark Williams (University of Leicester). \nAbstract: \nThe Holocene Epoch was a time of growing human population\, urbanisation\, agriculture and industry. But over the past 200 years\, and especially since the 1950s\, the human footprint on the Earth has grown very substantially. Thus\, human population grew from circa 1 billion in 1800 to 2 billion in 1930. In 1950 it was about 2.5 billion and then nearly 8 billion in 2022. Through this interval of time there has been a rapidly increasing\, though very uneven\, demand for the Earth’s resources that has left a clear geological signal in sedimentary deposits. These identify a fundamental change to the Earth System\, and the record of this is being discussed as a proposed new epoch of geological time that succeeds the Holocene. This is the Anthropocene and its boundary may be placed in deposits forming in the mid-20th century. The Anthropocene challenges us about our place in the Earth System\, and about our unsustainable use of resources. It has also been the catalysis for developing transdisciplinary solutions to the many environmental problems we now face. \nView This Talk In The Members’ Section. \n 
URL:https://www.hertsgeolsoc.org.uk/event/the-anthropocene-a-new-epoch-of-geological-time-characterised-by-humans/
LOCATION:Oaklands College\, Sapsed Room (SR)\, Oaklands College\, St Albans\, Hertfordshire\, AL4 0XS\, United Kingdom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2022/06/Holocene-Epoch.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220621T204000
DTEND;TZID=UTC:20220621T210000
DTSTAMP:20260404T181245
CREATED:20220618T170740Z
LAST-MODIFIED:20220624T061343Z
UID:9132-1655844000-1655845200@www.hertsgeolsoc.org.uk
SUMMARY:BBC Radio 4 - In Touch
DESCRIPTION:Tune in to In Touch to hear HGS member Mike Lambert talking about access to museums.
URL:https://www.hertsgeolsoc.org.uk/event/bbc-radio-4-in-touch/
LOCATION:BBC Radio 4
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220609T193000
DTEND;TZID=UTC:20220609T210000
DTSTAMP:20260404T181245
CREATED:20211202T164656Z
LAST-MODIFIED:20220610T141502Z
UID:6621-1654803000-1654808400@www.hertsgeolsoc.org.uk
SUMMARY:Preliminary observations and implications of a new Bathonian (Middle Jurassic) lagerstätte in Wiltshire\, UK
DESCRIPTION:with a focus on the micropalaeontology and geochemistry \n\n\n\ngiven by Dr. Steve Stukins (Senior Curator Micropalaeontology\, Natural History Museum\, London) \nAbstract: \n\n\n\nA new UK Bathonian (Middle Jurassic) lagerstätte has been revealed and was publicised last year as one of the most important Jurassic echinoderm localities in the world. Excavation of the site has produced thousands of exceptionally preserved articulated echinoderms including at least 18 species\, belonging to all five extant echinoderm classes. A closer look however\, at the range of other fossil groups has shown the exceptional preservation and diversity is not limited to the echinoderms. \nStephen will be presenting initial findings from the palynological and microfaunal investigations along with some geochemical analysis in order to help understand the local environment and why this ‘unique’ site exists. The wider context of palaeogeography and our understanding of the UK Jurassic will also be opened up to debate. \nView This Talk In The Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/preliminary-observations-and-implications-of-a-new-bathonian-middle-jurassic-lagerstatte-in-wiltshire-uk/
LOCATION:Oaklands College\, Sapsed Room (SR)\, Oaklands College\, St Albans\, Hertfordshire\, AL4 0XS\, United Kingdom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2022/06/June-Talk-Image.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220603T180000
DTEND;TZID=UTC:20220603T193000
DTSTAMP:20260404T181245
CREATED:20220501T092701Z
LAST-MODIFIED:20220525T134700Z
UID:8826-1654279200-1654284600@www.hertsgeolsoc.org.uk
SUMMARY:GA Henry Stopes Memorial vLecture
DESCRIPTION:Mapping the past: Quaternary Palaeogeography
URL:https://www.hertsgeolsoc.org.uk/event/https-geologistsassociation-org-uk-lectures/
LOCATION:over Zoom
CATEGORIES:GA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220515T103000
DTEND;TZID=UTC:20220515T163000
DTSTAMP:20260404T181245
CREATED:20220320T071922Z
LAST-MODIFIED:20220320T073513Z
UID:8609-1652610600-1652632200@www.hertsgeolsoc.org.uk
SUMMARY:Village Geology in Hertfordshire (Ashwell) - for GeoWeek
DESCRIPTION:Leader:  Mike Howgate \nMeeting up at the lych-gate of St. Mary’s church Ashwell at 10.30 am. \nMorning:  Visit to this  ‘ clunch’ church with its famous graffito of the Black Death and a devastating storm in the Middle Ages.  Followed by a walking tour of the village including the Chalk springs with their ‘Ice Age fauna’\, a lock-up built of ‘clunch’ blocks and a Wichert/Cobb thatched wall. \nThere are two decent pub for lunch. \nAfternoon: The village museum ( small charge) has a small but interesting geological collection.   Possibility of a walk to Ashwell Chalk pit or cars to Steeple Morden quarry.
URL:https://www.hertsgeolsoc.org.uk/event/village-geology-in-hertfordshire-for-geoweek/
LOCATION:Meet at Lynch Gate\, St Mary’s Church\, Ashwell\, Hertfordshire\, SG7 5LY\, United Kingdom
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20220515
DTEND;VALUE=DATE:20220519
DTSTAMP:20260404T181245
CREATED:20211205T121802Z
LAST-MODIFIED:20211205T122924Z
UID:6675-1652572800-1652918399@www.hertsgeolsoc.org.uk
SUMMARY:RGS Field Trip to South Pembroke
DESCRIPTION:The Reading Geological Society (RGS) are extending an invitation to HGS members to join their 2022 field trip to South Pembroke. Details of itinerary to follow. \nIf you are interested in this trip and would like to be notified when further details become available please click here.
URL:https://www.hertsgeolsoc.org.uk/event/rgs-field-trip-to-south-pembroke/
CATEGORIES:Field Trips
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220512T193000
DTEND;TZID=UTC:20220512T210000
DTSTAMP:20260404T181245
CREATED:20211202T164439Z
LAST-MODIFIED:20220610T141430Z
UID:6619-1652383800-1652389200@www.hertsgeolsoc.org.uk
SUMMARY:Civil engineering meets geology: Panama Canal
DESCRIPTION:given by Dr. Tony Waltham\, travelling geologist. \nAbstract: \nA long and varied history of great canal construction extended throughout the 1800s\, and included the first attempt at a canal across Panama\, which failed in its early stages. It was therefore into the next century that that the Americans built the Panama Canal between 1904 and 1914.  Construction of the massive concrete locks and of Gatun Lake both broke world records at the time\, and were brilliant in concept and evolution. Complex geology\, dominated by the horrendously weak Cucaracha Clay\, created huge problems in the deep Culebra Cut\, and these were overcome\, in less than subtle style\, by brute force and massive expenditure of machinery and effort. The Panama Canal continues to be a critical element in world trade\, and recent completion of its larger locks assures its future. \nView This Talk In The Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/civil-engineering-meets-geology-at-the-panama-canal/
LOCATION:Oaklands College\, Sapsed Room (SR)\, Oaklands College\, St Albans\, Hertfordshire\, AL4 0XS\, United Kingdom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2021/12/Panama-N162080T.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220423T100000
DTEND;TZID=UTC:20220423T153000
DTSTAMP:20260404T181245
CREATED:20211204T061358Z
LAST-MODIFIED:20211205T153339Z
UID:6644-1650708000-1650727800@www.hertsgeolsoc.org.uk
SUMMARY:Joint BGS/HGS Field Trip to Greensand Ridge
DESCRIPTION:led by Bev Fowlston (BGS). \n\n\n\n\nMeet at Clophill Ecolodges at 10:00 for 10:30 depart \n\n\n\n\nField trip details \n 
URL:https://www.hertsgeolsoc.org.uk/event/greensand-ridge-field-trip/
LOCATION:Clophill Ecolodges\, Old Church Path\, Clophill\, Bedfordshire\, MK45 4BP
CATEGORIES:Field Trips
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220414T193000
DTEND;TZID=UTC:20220414T210000
DTSTAMP:20260404T181245
CREATED:20211202T164129Z
LAST-MODIFIED:20220417T070212Z
UID:6611-1649964600-1649970000@www.hertsgeolsoc.org.uk
SUMMARY:Percy Evans Lecture on Tunnelling the Chilterns:
DESCRIPTION:Progress so far; understanding the risks; and how technology\, planning and logistics help address the challenges of tunnelling through a highly fractured chalk aquifer. \ngiven by David Eve (ALIGN\, Head of Engagement & Compliance for HS2) \nAbstract: \nWho are Align and how does the company fit within the HS2 structure? This leads on to an overview of HS2. The HS2 route is split into various sectors\, so I need to give an overview of Sector C1. What progress have we made to date and what were the results of the Ground Investigation? \nWhat are the risks? \n\nVolume loss; frac in and out;\nLoss of slurry to surface;\nLoss of ground stability within excavation chamber;\nLoss of air to surface (if intervention conducted under hyperbaric conditions);\nLoss of grout to surface; and over-excavation within excavation chamber.\nLeading to: Ground deformation; and excessive movement of structures.\n\nHow do we mitigate for these risks? \n\nOverview of the ‘system’ – TBM to Slurry Treatment Plant;\nPre-treatment where required (shafts);\nTechnology of the TBM (selection) – speed\, variable slurry density control\, anulus Grouting to maintain <1% volume loss\, continuous monitoring (MobyDic\, borehole data\, ground instrumentation) and adaption;\nLogistics and processing of slurry;\nExclusion zones and planning of appropriate maintenance stops;\nSecuring of land in higher risk areas.\n\nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/percy-evans-lecture-on-tunnelling-the-chilterns/
LOCATION:over Zoom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2022/03/HS2-High-Speed-Rail.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220310T193000
DTEND;TZID=UTC:20220310T210000
DTSTAMP:20260404T181245
CREATED:20211202T163608Z
LAST-MODIFIED:20220319T200757Z
UID:6609-1646940600-1646946000@www.hertsgeolsoc.org.uk
SUMMARY:AGM followed by a talk on What can satellites tell you about local geology?
DESCRIPTION:given by Jo Conway (Herts County Council & HGS). \nAbstract:\nThe talk is based on one presented recently as the summary of my dissertation topic for the Masters course in Geological and Environmental Hazards at the University of Portsmouth. My dissertation title was ‘Use of Sentinel-2 data to identify glaciotectonic features near Barkway\, Hertfordshire and link to geohazard assessment’. \nRelocating from North Wales\, with limited awareness of Hertfordshire geology\, my tutor suggested I look at the area near Barkway in North Hertfordshire for the geological hazard of glaciotectonic rafts\, with the added dimension of whether new technology (the Sentinel-2 satellite array) could be used in identification of geological features. Satellites give a global coverage of the earth’s surface passing over the same spot at mid-morning every 5 days (and shorter return periods as more in the array are launched). The satellite images are downloaded as ‘multi- spectral images’\, which enables the wavelengths to be separated. Using software these can be manipulated to calculate indices which can give different ‘colour’ images for comparison\, as well as graphical information. I will talk about the processing of the satellite images and how I linked various images to look for pattern recognition. \nView this talk in the Members’ Section. \n 
URL:https://www.hertsgeolsoc.org.uk/event/agm-followed-by-a-talk-on-what-can-satellites-tell-you-about-local-geology/
LOCATION:over Zoom
CATEGORIES:AGM,Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220220T100000
DTEND;TZID=UTC:20220220T140000
DTSTAMP:20260404T181245
CREATED:20211204T060446Z
LAST-MODIFIED:20211217T054623Z
UID:6640-1645351200-1645365600@www.hertsgeolsoc.org.uk
SUMMARY:Little Heath Geoconservation
DESCRIPTION:Two stages: \nStage 1: vegetation clearance \nStage 2: face \nRestricted numbers – please register your interest here
URL:https://www.hertsgeolsoc.org.uk/event/little-heath-geoconservation/
LOCATION:Little Heath\, Potten End\, Potten End\, United Kingdom
CATEGORIES:Field Trips
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220210T193000
DTEND;TZID=UTC:20220210T210000
DTSTAMP:20260404T181245
CREATED:20211202T163106Z
LAST-MODIFIED:20220319T200521Z
UID:6604-1644521400-1644526800@www.hertsgeolsoc.org.uk
SUMMARY:The eruption of the Soufriere Hills Volcano\, Montserrat
DESCRIPTION:given by Prof. Steve Sparks (University of Bristol). \nAbstract: \nThe volcanic eruption of the Soufriere Hills Volcano\, Montserrat (1995 to 2010) is one of the most detailed studied eruptions of an andesite volcano. The research led to major advances in understanding volcanic processes. The eruption was also a traumatic experience for the people of Montserrat which they faced with fortitude and resilience. New innovations in managing volcanic emergencies were pioneered during the eruption. \nView this talk in the Members’ Section.\n \n  \n 
URL:https://www.hertsgeolsoc.org.uk/event/the-eruption-of-the-soufriere-hills-volcano-montserrat/
LOCATION:over Zoom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2022/01/Sparks-IMG_3602res-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220204T180000
DTEND;TZID=UTC:20220204T193000
DTSTAMP:20260404T181245
CREATED:20220126T171814Z
LAST-MODIFIED:20220126T171814Z
UID:7697-1643997600-1644003000@www.hertsgeolsoc.org.uk
SUMMARY:GA Lecture
DESCRIPTION:Pushing back the boundaries of early life.
URL:https://www.hertsgeolsoc.org.uk/event/ga-lecture-3/
LOCATION:over Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220113T193000
DTEND;TZID=UTC:20220113T210000
DTSTAMP:20260404T181245
CREATED:20211202T162914Z
LAST-MODIFIED:20220126T170721Z
UID:6602-1642102200-1642107600@www.hertsgeolsoc.org.uk
SUMMARY:Mammal miniaturisation during Paleogene hyperthermals: a new palaeodietary perspective
DESCRIPTION:given by Dr. Neil Adams (University of Oxford Natural History Museum) \nAbstract: \n\n\n\nA repeated response to abrupt climate warming among vertebrates is body size reduction\, which has been observed in response to anthropogenic climate change and to abrupt warming events in the geological record. Several hypotheses have been proposed to explain this size decrease among mammals\, including range shifts of populations with geographically variable body size\, as well as in situ evolutionary responses to environmental changes. In this talk\, I will present findings of a new test of these hypotheses using a novel\, multi-comparator approach to dental microwear texture analysis. The evidence favours a scenario of in situ ecological responses to changes in resource availability during a period of abrupt climate warming in the early Paleocene (ca. 62.3 Ma). The more rapid rate of modern climate and environmental change\, compared to natural warming events in the Paleogene\, leads us to question whether living mammals will be able to adapt quickly enough to avoid extinction without human intervention. \nView This Talk In The Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/mammal-miniaturisation-during-paleogene-hyperthermals-a-new-palaeodietary-perspective/
LOCATION:over Zoom
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2021/12/Microwear-image.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20220107T180000
DTEND;TZID=UTC:20220107T193000
DTSTAMP:20260404T181245
CREATED:20220126T171504Z
LAST-MODIFIED:20220126T171614Z
UID:7693-1641578400-1641583800@www.hertsgeolsoc.org.uk
SUMMARY:GA Lecture
DESCRIPTION:Secret Life of Crinoids
URL:https://www.hertsgeolsoc.org.uk/event/ga-lecture-2/
LOCATION:over Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211209T193000
DTEND;TZID=UTC:20211209T210000
DTSTAMP:20260404T181245
CREATED:20210627T145421Z
LAST-MODIFIED:20220319T193159Z
UID:1981-1639078200-1639083600@www.hertsgeolsoc.org.uk
SUMMARY:The last British Ice Sheet
DESCRIPTION:given by Dr Bethan Davies (Royal Holloway\, University of London) \nAbstract: \nUnderstanding how the last British-Irish Ice Sheet behaved in response to external climatic forcing may be used as an analogue for how the Antarctic Ice Sheet may behave in the future. We can use these empirical datasets to calibrate numerical simulations and better understand ice-sheet response to climate and ocean forcing. During the Last Glacial Maximum (LGM)\, ice streams of the last British-Irish Ice Sheet (BIIS) controlled the ice discharge from various dispersal centres. Deglaciation was characterised by shifts in ice-divide location and changes in internal ice-sheet dynamics\, resulting in substantial flow switches and significant ice-stream reconfiguration\, and hence modification of their landform signatures. We present new geomorphological mapping and 10Be cosmogenic nuclide ages from Northern England (Stainmore Gap\, Eden Valley and Vale of York)\, that constrain regional dynamic ice-stream retreat following the LGM. We identify complex decoupling of competing ice lobes\, characterised by early retreat of the North Sea Lobe and a minor re-advance of Stainmore ice prior to ~20 ka. This was followed by rapid recession of the central Stainmore Gap\, contemporaneous with the recession of the Tyne Gap Ice Stream. The northwards ice-flow reversal in the Vale of Eden was associated with the development of ice domes across the northern Pennines\, Howgill Fells and the Lake District. This shift in dispersal centres and ice divide migration likely triggered the rapid collapse of eastward ice stream corridors.  The central sector of the BIIS rapidly collapsed back up into upland dispersal centres between 20 to 17.5 ka.  This work highlights the role internal factors\, such as topography\, in driving ice-divide migration and flow switches during externally and climatically forced ice-sheet thinning. \nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/the-last-british-ice-sheet/
LOCATION:Zoom Talk
CATEGORIES:Talks
ATTACH;FMTTYPE=image/png:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2022/01/Screenshot-2022-01-25-at-16.25.56.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211203T180000
DTEND;TZID=UTC:20211203T193000
DTSTAMP:20260404T181245
CREATED:20211024T154020Z
LAST-MODIFIED:20211024T155057Z
UID:5596-1638554400-1638559800@www.hertsgeolsoc.org.uk
SUMMARY:GA Lecture
DESCRIPTION:From bones to pixels – using computer technology to understand the behaviour of fossil animals
URL:https://www.hertsgeolsoc.org.uk/event/ga-lecture/
LOCATION:over Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211111T193000
DTEND;TZID=UTC:20211111T210000
DTSTAMP:20260404T181245
CREATED:20210627T145246Z
LAST-MODIFIED:20220319T192719Z
UID:1979-1636659000-1636664400@www.hertsgeolsoc.org.uk
SUMMARY:Geoscience\, and the World After Oil
DESCRIPTION:given by Tony Doré (Global Chief Scientist\, Energy & Geoscience Institute (EGI) agdore@gmail.com\, tdore@egi.utah.edu) \nAbstract:\nMeeting burgeoning global energy demand while mitigating anthropogenic climate change must overcome the challenges of denial and indifference\, and also the negation of some genuine attempts by industry to move towards cleaner energy.  Real progress will come not from blame and confrontation\, but from forward-looking scientific and engineering solutions. \nWe are living at a historical crisis point in the world energy balance\, in which future projections depend on a complex interplay between fossil fuels and alternative energy sources\, and where the role and type of fuels employed will be driven by geopolitics and environmental concerns. All projections to approximately three decades hence show rising global energy demand\, primarily driven by further development of emerging markets. This is coupled with a decline in legacy petroleum supply\, waning exploration and a steady reduction in new resource additions. Conventional exploration\, particularly by the International Oil Companies\, is opportunity-constrained\, and to date export of the North American experience with unconventionals has met with mixed success. \nAdditionally\, the most optimistic current projections for growth in alternative energy sources such as renewables and nuclear do not make up the demand shortfall.  Radical step changes are likely in both demand and supply\, based on world-changing events such as the current pandemic\, or technological developments.  However\, by their nature these are difficult to predict. \nBridging this energy gap\, and meeting global CO2/climate targets\, requires close international co-operation\, responsible stewardship of fossil fuel resources\, investment in alternative energy and more emphasis on critical minerals and energy storage. Progressive companies are already embracing these ideas\, and developing business models based on renewable energy phasing out petroleum\, on carbon management\, and on environmental sensitivity. This talk will discuss what role the geoscience community can – and should – play in this energy transition. \nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/geoscience-and-the-world-after-oil/
LOCATION:Zoom Talk
CATEGORIES:Talks
ATTACH;FMTTYPE=image/png:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2021/06/World-Energy-Graphic.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211107T100000
DTEND;TZID=UTC:20211107T160000
DTSTAMP:20260404T181245
CREATED:20211024T152829Z
LAST-MODIFIED:20211024T153331Z
UID:5587-1636279200-1636300800@www.hertsgeolsoc.org.uk
SUMMARY:GA Real Urban Geology Walks
DESCRIPTION:
URL:https://www.hertsgeolsoc.org.uk/event/ga-real-urban-geology-walks/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211106T090000
DTEND;TZID=UTC:20211106T170000
DTSTAMP:20260404T181245
CREATED:20211024T152520Z
LAST-MODIFIED:20211024T152520Z
UID:5585-1636189200-1636218000@www.hertsgeolsoc.org.uk
SUMMARY:GA Virtual Festival of Geology
DESCRIPTION:
URL:https://www.hertsgeolsoc.org.uk/event/ga-virtual-festival-of-geology/
LOCATION:over Zoom
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211031T183000
DTEND;TZID=UTC:20211031T203000
DTSTAMP:20260404T181245
CREATED:20211024T151051Z
LAST-MODIFIED:20211024T154620Z
UID:5577-1635705000-1635712200@www.hertsgeolsoc.org.uk
SUMMARY:GA Zoom talk/workshop
DESCRIPTION:on the Wealden (Smokejacks)
URL:https://www.hertsgeolsoc.org.uk/event/ga-zoom-talk-workshop-on-the-wealden-smokejacks/
LOCATION:over Zoom
CATEGORIES:GA Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211007T193000
DTEND;TZID=UTC:20211007T210000
DTSTAMP:20260404T181245
CREATED:20210627T145052Z
LAST-MODIFIED:20211129T143059Z
UID:1977-1633635000-1633640400@www.hertsgeolsoc.org.uk
SUMMARY:Geoconservation - principles into practice
DESCRIPTION:given by Dr Colin Prosser (Principle Specialist in Geoconservation\, Natural England). \nRearranged from October 2020. \n\nAbstract:\nThe UK is extremely geodiverse with many geological features and sites of international\, national and local importance for research\, education\, tourism and recreation. However\, we are a small country with a large population and our geoheritage is subject to a range of threats. These include development pressure\, landfill\, coastal and river engineering\, neglect and ignorance. Retaining these features and sites for future generations requires us to take action locally\, nationally and internationally\, both to conserve them and to raise awareness amongst the public and decision makers about their value to science and society. This talk explores some of the broad principles which influence different approaches to geoconservation and drawing upon the work of local geoconservation groups and societies\, national associations\, government conservation agencies and UNESCO Global Geoparks and World Heritage Sites\, illustrates how geoconservation is being put into practice on the ground.\n\n\nView this talk in the Members’ Section.
URL:https://www.hertsgeolsoc.org.uk/event/geoconservation-principles-into-practice/
LOCATION:Zoom Talk
CATEGORIES:Talks
ATTACH;FMTTYPE=image/jpeg:https://www.hertsgeolsoc.org.uk/wp-content/uploads/2021/06/Dorset07-008.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20210911T100000
DTEND;TZID=UTC:20210911T160000
DTSTAMP:20260404T181245
CREATED:20210612T143611Z
LAST-MODIFIED:20210813T143429Z
UID:1029-1631354400-1631376000@www.hertsgeolsoc.org.uk
SUMMARY:The ***cretes of Hertfordshire
DESCRIPTION:A field trip in search of Calcrete\, Silcrete and Ferricrete in South hertfordshire\, led by Mike Howgate. \nCalcrete cliffs at Waterford Heath\nWe will meet up in the car park at Waterford Heath Nature Reserve which is just north of Hertford ( O.S. TL 317150 ) at 10.30 am.  This is a small car park much used by dog walkers so it would be best to come in as few cars as possible.  Here we can examine spectacular cliffs of calcrete within the glacial gravels where we can find erattic fossils.  We will then move on to see silcretes starting with the ‘Balloon Stone’ at Standon Green End where I have arranged for us to park up in the farmyard of Mott’s Spring Farm ( O.S. TL 363199 ). \nThe Balloon Stone is a sarsen stone moved here from Bengeo in the eighteenth century to celebrate the landing point of the first flight in a balloon in England by Vincento Lunardi.  Our final stop of the morning will be in the village of Standon ( O.S. TL 396223 to see their famous Hertfordshire puddingstone boulder – the Standon Stone.  Park up in the wide part of the road before you reach the church\, then walk past the church and the stone is on a small green as the road curves round to the left.   I will explain why I think that this HPS boulder has pagan significance.  A sandwich lunch can be picked up at Day’s Bakery in the village. \nIn the afternoon we will meet up at North Mymms church ( O.S. TL  222045 ) where we can have our pic-nic lunch in the churchyard.  Park in the road leading up to the church rather than in the church car park.  We will examine the church building stones for examples of ferricretes then look for their source in the surrounding farmland.  These has been missed for years despite being noted on the 6” to the mile Geological Survey field slips.  This part of the trip will involve a two mile walk along well used tracks so boots are recommended. \nSAFETY NOTES \nWe will cross three country roads and be walking on uneven pavements\, rough tracks and across fields.  The farmer should have removed his livestock from the ‘Balloon Stone’ field.  If not beware of inquisitive sheep. \n 
URL:https://www.hertsgeolsoc.org.uk/event/the-cretes-of-hertfordshire/
CATEGORIES:Field Trips
END:VEVENT
END:VCALENDAR