Friday, 13 July 2018

16th to 29th July 2018

NEXT WEEKS EVENTS

16TH TO 29TH JULY 2018

THE FOLLOWING IS AN EXTRACT FROM BRISTOL AND WEST COUNTRY GEOLOGY CALENDARS

MORE DETAILS CAN BE FOUND IN THE BRISTOL AND THE WEST COUNTRY CALENDARS AND ON THE WEB SITES OF THE RELEVANT SOCIETY OR ORGANISATION.

MONDAY 16TH


Tuesday 17th

WRG July 2018 Public Perception of geothermal power talk
When
Tue, 17 July, 18:00 – 20:00
Where
The Hub, 500 Park Avenue, Aztec West, Almondsbury, Bristol (map)
Description
We’re going deeper underground: discovering public perceptions of the geological subsurface through Geothermal Power 
Dr Hazel Gibson, University of Plymouth

17th July 2018. The Hub, Aztec West, Bristol. 

Refreshments at 6pm for 6:30pm Start

The Western Regional Group is pleased to invite Dr Hazel Gibson, a researcher of the public perception and communication of geothermal power at the University of Plymouth. She is currently examining public perceptions of geology in the South West of England. Covering science communication, psychology, geology and geography, this research has led to a whole new understanding of how expert and non-expert geoscientists conceptualise the geological subsurface and how that understanding can be used to improve the effectiveness of our communications.  

‘Geology; that’s just rocks isn’t it?’ Undoubtedly this is a phrase any geoscientist has heard many times in their life. But, as we know, geology is more than just rocks. In fact, from reducing our carbon budget using Carbon Capture and Storage, to the deep geological disposal of radioactive waste, geologists are attempting to solve several of our biggest environmental issues in many innovative ways. However, for the public, new technological solutions are often viewed with uncertainty, even fear and when questions held by the public are not addressed, the result can be catastrophic. Nowhere is this more clearly illustrated than with fracking, a technology whose public image is now so bad that it is hard to envision a space where communication is about engagement and not crisis management.

Enter Deep Geothermal Power. A relative newcomer to the deep geological technologies mix in the UK, it benefits from being fairly unknown and thus avoiding major negative connotations, but also being a renewable energy resource and therefore generally perceived to be popular.  Managing deep geothermal’s debut into society is something that must be carefully handled, and it is essential that the public is partner in this introduction. The United Downs Deep Geothermal Power project just outside Redruth in Cornwall is providing the perfect opportunity to explore public perceptions of geothermal power and how those perceptions influence effective communication.


Venue: The Hub, 500 Park Avenue, Aztec West, Almondsbury, Bristol, BS32 4RZ
The talk is open to everyone, no booking is required.
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Dave green, Field Course - Geology and Landscape in Gloucestershire
When
Tue, 17 July, 19:00 – 21:00
Where
Meet at the car park for the picnic site at Coaley Peak GR SO 794014 (map)
Description
17th July Haugh Wood to Fownhope, Woolhope
In the Woolhope Dome, an eroded anticline in Silurian sediments, there is a very close relationship between rock type, geological structure and the position of hills and valleys. This is a particularly beautiful part of Herefordshire.
Meet at the car park of the New Inn, Fownhope SO 578345, from where we shall take a small number of cars to Haugh Wood and walk back from the centre to the southern margin of the Woolhope Dome, crossing the Silurian rock types in order of age. The linear walk is on paths, tracks and minor roads, and will be 3-4km long, including some relatively small/gentle hills

Dave Green, Joys Green Farm, Forge Hill, Lydbrook, Glos GL17 9QU Tel 01594 860858

davegeostudies@gmail.com
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SMFS Evening Meeting
When
Tue, 17 July, 19:30 – 22:00
Where
The Friends' Meeting House, 1A, Ordnance Rd, Southampton. SO15 2AZ (map)
Description
Dinosaurs and their Bowels! Presentation by Dr Jeremy Lockwood.
Members’ Display Table: Fossils & minerals from the Isle of Wight.

Wednesday 18th


Thursday 19th

Thornbury Geology Group, 7.30pm, The Chantry, Thornbury
When
Thu, 19 July, 19:00 – 21:30
Description
Thornbury Geology Group, 7.30pm at The Chantry, Thornbury, and every 3rd Thursday in the month.  

friday 20th


Saturday 21st

Nick Chidlaw Course - The River Avon
When
Sat, 21 July, 10:00 – 17:00
Description
July – field course studying the landforms and underlying geology of the river Avon valley between Trowbridge and Clifton, Bristol

2 day course:

THE BRISTOL AVON AND ITS HOT SPRINGS: A RIVER’S COURSE PECULIAR

A weekend late July: 21st and 22nd

10.00 am – 5.00 pm each day. 

Tuition fee is  £45.00 per person

Deadline for course viability: 23rd June

Enrolments can be made and further details requested by contacting tutor Nick Chidlaw nickchidlaw@gmail.com 

A field weekend examining the course of the river between Trowbridge, Wiltshire and the gorge at Clifton, Bristol. In this tract, the Avon repeatedly enters upland via a gorge, instead of crossing adjacent lower ground. Along its course at Bath and Hotwells, Bristol, occur hot springs. The course focuses on these curious / unusual features, and considers possible causes. One published proposal in fairly recent years, that the course and its hot springs may have been a product of active fault movement during the Ice Age, has since been refuted by the absence of geophysical evidence. 

For the course, a handout outlining the two-day programme, including location sketch maps, optional reading list, and outline geological history, will be forwarded in advance of the course to those enrolled.
---------------------------------

SWGA Excursion - Saturday 21st July: Flat Holm, with Chris Lee
When
Sat, 21 July, 11:15 – 16:15
Description

Saturday 21st July: Flat Holm ** ADVANCED BOOKING AND PAYMENT ESSENTIAL

Leader: Chris Lee

Meet at 11.15 prompt. Location and booking details will be given on booking. We will board the
boats (RIBs) and catch the 1200 lock out of the Bay to sail across to Flat Holm for a 2 - 2.5 hour
visit. Our return journey will entail a circuit of the island after which we will sail north to look at
Sully Island from the seaward side and then cruise along the Jurassic / Triassic Coast to catch the
15.45 lock back into Cardiff Bay. We will be back in Penarth for 1600.

As the most southerly pub in Wales (the Gull and Leek) may or may not be open on the day you
will need a packed lunch with a hot/cold drink. As the trip can be ‘bumpy’ (nautical term!) H&S
precludes all those with back problems or who are pregnant. Otherwise just normal fitness levels
are required. There is a steepish, stepped incline up from the island jetty but once on top it is
pretty flat (the clue is in the name), with otherwise just the usual scrambles.

Bay Island Voyages will take a decision on whether the trip will go based on meteorological
considerations some 48 hours before hand so there should be no last minute cancellations.
The cost is £30 for the boat plus a £5 landing fee giving a total price of £35. With the boats
available we can take a maximum of 32 people. You need to book a place and pay in advance on a
first come basis. If for any reason the boat cannot sail then you will get a full refund. To book
please contact: Rhian Kendall: rhian@carreg.org.uk Payment can be made by cheque or bank
transfer.

Sunday 22nd
Nick Chidlaw Course - The River Avon
When
Sat, 21 July, 10:00 – 17:00
Description
July – field course studying the landforms and underlying geology of the river Avon valley between Trowbridge and Clifton, Bristol

2 day course:

THE BRISTOL AVON AND ITS HOT SPRINGS: A RIVER’S COURSE PECULIAR

A weekend late July: 21st and 22nd

10.00 am – 5.00 pm each day. 

Tuition fee is  £45.00 per person

Deadline for course viability: 23rd June

Enrolments can be made and further details requested by contacting tutor Nick Chidlaw nickchidlaw@gmail.com 

A field weekend examining the course of the river between Trowbridge, Wiltshire and the gorge at Clifton, Bristol. In this tract, the Avon repeatedly enters upland via a gorge, instead of crossing adjacent lower ground. Along its course at Bath and Hotwells, Bristol, occur hot springs. The course focuses on these curious / unusual features, and considers possible causes. One published proposal in fairly recent years, that the course and its hot springs may have been a product of active fault movement during the Ice Age, has since been refuted by the absence of geophysical evidence. 

For the course, a handout outlining the two-day programme, including location sketch maps, optional reading list, and outline geological history, will be forwarded in advance of the course to those enrolled.

MONDAY 23rd


TUESDAY 24TH


WEDNESDAY 25TH


THURSDAY 26TH


FRIDAY 27TH


SATURDAY 28th


SUNDAY 29th

Oxford Mineral Fossil Show
When
Sun, 29 July, 10:30 – 16:00
Where
Exeter Hall, Kidlington, north Oxford OX5 1AB (map)
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WEGA and Thornbury Geology Group - Field Trip
When
Sun, 29 July, 11:00 – 15:00
Where
Windmill Inn car park, Nore Road. ST 458 766 (map)
Description
 WEGA and Thornbury Geology Group 

The field trip to Portishead, North Somerset will take place on the 29th July 2018. It will be led by Hugh Jones. Please notify me on huandsu@btinternet.com if you plan to attend. Note there will be a charge for non-members.


Start time 11.00 am. Planned to end around 3.00 pm

Start location Windmill Inn car park, Nore Road. ST 458 766

Car Parking Limited parking at the Windmill. It is recommended parking on The Esplanade (ST 463 771), and then walk south up Beach Road West for 70 m. then turn right to cross the Picnic Grounds to the Windmill Inn car park.

Amenities Bring a packed lunch to eat in the Lake Grounds, or go to local cafés (Lakeside or Lido). There are public toilets next to the Lakeside Cafe, and toilets in the Lido café.

Route The walk will start on the beach below the Windmill Inn at Fishermen’s Steps. From there It will be along the beach to Esplanade Road and on towards Portishead (Battery) Point lighthouse. From Battery Point it will be up to and along Woodlands Road to the beach close to the Royal Inn.

Conditions Total walk less than 4 miles.
Some steps, paths, and grass slopes. The beach is slippery and uneven in places with rock, pebbles and mud. Stout footwear is needed. Be prepared for a small amount of clambering over or around rocks.
There are some low cliffs with loose material so hard hats needed if you wish to get close up.

Geology There are sedimentary structures, unconformities, folding, faulting, fossils and maybe some Gneiss (ex. ships ballast?).
 Devonian, Carboniferous and Triassic materials.

Landslides in Japan

Landslides in Japan

One of my favourite web sites has some pictures of the recent spate of landslides in Japan following very heavy rain.



The same website has another report of a landslide in Iceland. There is not a great deal of geology involved but there is a wonderful video which will allow you to practise your Icelandic and also admire the equanimity of people under mass attack from flies!


Saturday, 7 July 2018

9th to 15th July 2018

NEXT WEEKS EVENTS

9th TO 15TH JULY 2018

THE FOLLOWING IS AN EXTRACT FROM BRISTOL AND WEST COUNTRY GEOLOGY CALENDARS

MORE DETAILS CAN BE FOUND IN THE BRISTOL AND THE WEST COUNTRY CALENDARS AND ON THE WEB SITES OF THE RELEVANT SOCIETY OR ORGANISATION.

MONDAY 9th

Dave Green - Planetary Geology
When
Mon, 9 July, 19:30 – 21:30
Description
Planetary Geology. Monday 16th April, for 10 weeks, until 9th July (not 7th nor 28th May). The state of knowledge of the planets of the solar system has improved vastly in the past 40 years as a result of space missions and improved technology for observation and analysis. The course will examine the results of this activity and evidence for these interpretations in terms of the internal structure, magnetism and geophysics of these bodies; their tectonics and volcanism, the effects of impacting bodies, and the surface conditions –atmospheres, oceans, sedimentary features and biology. Held at Wynstones School, Stroud Road, Whaddon, Gloucester from 7.30-9.30pm on Mondays. Cost £70.

Dave Green, Joys Green Farm, Forge Hill, Lydbrook, Glos GL17 9QU Tel 01594 860858

davegeostudies@gmail.com

Tuesday 10th

Dave green, Field Course - Geology and Landscape in Gloucestershire
When
Tue, 10 July, 19:00 – 21:00
Where
Meet at the car park for the picnic site at Coaley Peak GR SO 794014 (map)
Description
10th July Tidenham Chase, Limestone Pavement and the Devil’s Pulpit
Lying in the southern part of the Forest of Dean, where it narrows between the Wye and Severn, this 
area is one of the best in Gloucestershire to illustrate the relationships between rock type, soils 
and vegetation; underlain by almost horizontally bedded lower Carboniferous sandstones and 
limestones. We will attempt a circular walk around the area, taking in the conservation area of The 
Park, the limestone pavements in East Wood and the famous viewpoint on the edge of the Wye Valley 
above Tintern.
Meet at the car park for Offas Dyke Path on the B4228 (St Briavels to Chepstow) GR ST 559 993


Dave Green, Joys Green Farm, Forge Hill, Lydbrook, Glos GL17 9QU Tel 01594 860858

davegeostudies@gmail.com

Wednesday 11th



thursday 12th



Friday 13th

Cheltenham Mineralogical and Geological Society - Lecture
When
Fri, 13 July, 19:00 – 21:00
Where
Shurdington, Cheltenham, UK (map)
Description
Members Evening

saturday 14th

Rockwatch Excursion to Pembrokeshire
When
14 – 15 Jul 2018
Description
South Wales Annual Weekend in Pembrokeshire 

 
This year we will be exploring the stunning Pembrokeshire coast.  We will be investigating the spectacular geology, scenery and building stones of the St David’s Peninsula which includes sedimentary and igneous rocks (Precambrian – Ordovician) and Quaternary landforms and deposits which give an important insight into ‘climate change’.  There will be walks along the local coastal footpath as far as Porthliskey and a look at the north coast of the peninsula.  Suitable for 10 year olds and above as there is a fair amount of walking to do!   Book through the website

www.rockwatch.org.uk

sunday 15th


Rockwatch Excursion to Pembrokeshire
When
14 – 15 Jul 2018
Description
South Wales Annual Weekend in Pembrokeshire 

 
This year we will be exploring the stunning Pembrokeshire coast.  We will be investigating the spectacular geology, scenery and building stones of the St David’s Peninsula which includes sedimentary and igneous rocks (Precambrian – Ordovician) and Quaternary landforms and deposits which give an important insight into ‘climate change’.  There will be walks along the local coastal footpath as far as Porthliskey and a look at the north coast of the peninsula.  Suitable for 10 year olds and above as there is a fair amount of walking to do!   Book through the website

www.rockwatch.org.uk

Friday, 6 July 2018

A reason to visit Beijing

Beijing Fossil Mammal Exhibition

The Guardian has this report on a public exhibition at the Beijing Museum of Natural History. To quote "(for the) dedicated palaeontologist fanbase."

The writer, Elsa Panciroli, describes many fossils which suggest mammals (and us) started in the late Triassic and were not all cowering wee beasties. Indeed one fed on (small) dinosaurs!

But the best specimen, in my opinion is Maiopatagium, a Jurassic mammal which was a tree glider.

 Maiopatagium, a Jurassic mammal fossil from China. Fur impressions are preserved around the fossil, indicating it had a patagium (skin-flap) that would have allowed it to glide between trees. Photograph: Zhe-Xi Luo

You will have to be quick - the exhibition ends at the end of July.

Wednesday, 4 July 2018

Down to Earth Extra - July

DOWN TO EARTH EXTRA - JUly

You can get the latest Down to Earth Extra HERE.

Or you can read it on this page.



Magnetic field reversals - an explanation?

Magnetic Field Reversals - an Explanation?

I came across THIS ARTICLE and found it very interesting. It connects subduction - all the way to the core - and magnetic field reversals. They reckon it takes 120m years for transportation from surface to core.

An increase in the amount of subduction leads to increase in magnetic reversals 120 million years later. I can hardly wait!

A cartoon cross-section (not to scale) of Earth’s interior. Kay Lancaster, University of Liverpool, Author provided