Tuesday, 19 June 2018

New land formed in Hawaii

How We Missed Death - by 7¼ Years!

I have been interested by the current volcanism in Hawaii for several reasons, but the most important was that we stayed in the area in March 2011. 


In particular we stayed at a rented house right on the coast at Kapoho.

Our house at Kapoho at high tide



View north along the coast from our house

View to sea from our house at low tide

You can see where we were on this (annotated) Google Map.



Then, this morning I read that 250 acres of land had been created at Kapoho. And the USGS provides this map which I repeat below, with some annotations.


You can correlate between the two using the former coastline and the points I have added to each.

We enjoyed our stay at Kapoho. We were on the 1955 (or possibly the 1960) lava flow so were well aware that things were not permanent. But we were more aware of danger from the sea. Indeed we had to evacuate because of fears of a tsunami following the Fukushima earthquake in Japan. But that had minimal consequences in Hawaii.

The owners of our house presumably still own the land, it is just a little higher in elevation! And possibly a little farther from the sea.

Some people rebuild not long after the lava is solid.



And this being the land of free enterprise, someone will buy the new land from the Feds and try to sell it - and probably succeed.



Saturday, 16 June 2018

18th to 24th June 2018

NEXT WEEKS EVENTS
18TH TO 24TH JUNE 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 18TH

Dave Green - Planetary Geology
When
Mon, 18 June, 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 19th

Geol Soc Western - Meeting
When
Tue, 19 June, 18:00 – 21:00
Where
The Hub, 500 Park Avenue, Aztec West, Almondsbury, Bristol, BS32 4RZ (map)
Description

WRG June 2018 Waste Management of Brownfield Sites
Joint presentation between EPUK and WRG
This presentation looks at the practical options for reusing and/or disposing of contaminated and uncontaminated soils. It covers what is and isn’t defined as a waste soil and examines the options for re-using or disposing of soils. This includes defining what is and isn’t a waste soil, and the mechanisms in place for re-use such as waste exemptions, the CL:AIRE Definition of Waste Code of Practice and other options such as re-use as a restoration or recovery operation. Costs for both disposal and reuse are presented and examples are drawn from both large and small developments. 

EPUK is a national charity that provides expert policy analysis and information on air quality, land quality, waste and noise. We aim to promote integrated policies and practices that encourage the use and reuse of land in a way that protects human health and the environment.

Venue: The Hub, 500 Park Avenue, Aztec West, Almondsbury, Bristol, BS32 4RZ

Open to everyone. Booking not required.
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Dave green, Field Course - Geology and Landscape in Gloucestershire
When
Tue, 19 June, 19:00 – 21:00
Where
Meet at the car park for the picnic site at Coaley Peak GR SO 794014 (map)
Description
19th June Malmesbury to the Marlborough Downs
Much younger rocks, gently tilted from the horizontal, producing the “scarp-vale” scenery so typical of southern England. A traverse across a number of these features looking at the variations in scenery and rock types, starting on the Cotswold limestone dip slope and ending up on the Upper Chalk at a superb viewpoint .
Meet at the car park of the pub The Somerford Arms, in Little Somerford GR ST 969 845 (just off the B 4042 from Malmesbury to Wootton Bassett). If the car park is full, there is plenty of on-street parking nearby.

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, 19 June, 19:30 – 22:00
Where
The Friends' Meeting House, 1A, Ordnance Rd, Southampton. SO15 2AZ (map)
Description
Sophie the Stegosaurus. Presentation by Dr Susannah Maidment.
Members’ Display Table: Minerals & fossils from North America.
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Wednesday 20th



Thursday 21st

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

Friday 22nd

Bristol Nats - Geology of Tyntesfield
When
Fri, 22 June, 10:30 – 12:30
Where
Meet at 10.30 a.m. in the top North West corner of the car park ST 499 716 (map)
Description
Friday 22nd June, 10.30 a.m.:  The Geology of the Tyntesfield Estate, Wraxall, North Somerset.
Leader: Richard Kefford.
The purpose of this Field meeting is to examine the rocks of the Pembroke Limestone Group (Carboniferous Limestone) and the Mercia Mudstone Marginal Facies (Dolomitic Conglomerate) Brechia exposed in various small quarries on the wider Tyntesfield Estate.

Meet at 10.30 a.m. in the top North West corner of the car park ST 499 716. The entrance road to the estate is signposted on the south side of the B3128 about a mile past Failand.

Members of National Trust please bring membership cards for the car park and entry to the grounds. There are charges payable by non National Trust Members. The route will be outside in the grounds, no access will be sought to the house. The meeting will conclude in time for lunch, which may be had at the National Trust restaurant. Please let the Secretary know if you wish to attend.
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OUGS Wessex - Excursion, Geology of the North Norfolk Coast
When
22 – 23 Jun 2018
Where
Sheringham NR26, UK (map)
Description


Leader: Dr Fiona Hyden
Two places are now available due to an unexpected cancellation. Please contact the organiser for details.  Please act soon. When they are gone - they are gone. 

North Norfolk has many 'text book' locations to explore. The surface deposits and underlying solid rock on the Norfolk coast reveal part of the history of glacial and interglacial processes during the last 2.6 million years and oceanic and biogenic processes during the mid Cretaceous.

The trip itinerary includes the coastal cliffs at Overstrand, West Runton and Hunstanton. The accommodation is in the modern, well-appointed Sheringham Youth Hostel in twin or double rooms. The price will be between £120 and £150, depending on final numbers. More details on geology and accommodation in the application form.
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Saturday 23rd

Nick Chidlaw - Field Geology & Opencast Mining of Coal in South Wales
When
23 – 24 Jun 2018
Where
Places in South Wales - TBC (map)
Description

 
June/July – Field Geology of the Late Carboniferous Coal Measures strata in south Wales
 
Lifelong Learning 4 day course:
 
Field Geology & Opencast Mining of Coal in South Wales
 
Two weekends in late June / earliest July: 23rd / 24th and 30th / 1st July
 
10.00 am – 5.00 pm each day. 
This course visits impressive locations, both natural and man-made. We study natural exposures and former quarries in river gorges, large-scale working opencasts, a working sandstone quarry, and a disused opencast site. The course enables examination of much of the full stratigraphic extent of the Coal Measures in the main south Wales coalfield, and an appreciation of their deformation (including thrust faulting) during the Variscan Orogeny.
 
The attached picture shows Margam Opencast (east of Swansea) during the 2000’s. It gives an idea of the scale of these opencast operations and the opportunities they provide to study and collect from strata little-exposed elsewhere.    
 
Please note you will need to make your own travel and accommodation arrangements (tutor will advise), with meeting times and places to be confirmed.
 
The course is organised through Cardiff University. It carries assessment, which is very difficult to fail! Attendees usually find assessment on these courses useful for consolidating what they have learned.
 
Tuition fee is  £165.00 (concessionary fee is available £132.00)
 
Enrolments can be made by phoning 029  2087  0000 or see website www.cardiff.ac.uk/learn 
 
For more information on the course content, contact the tutor Nick Chidlaw nickchidlaw@gmail.com 
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Bath Geol Soc - field trip
When
Sat, 23 June, 10:30 – 16:00
Where
Lambourne and Avebury (map)
Description
Bath Geological Society Field Meeting.
Saturday, June 23rd
Lambourne and Avebury
Leader: Isobel Geddes, Wiltshire Geology Group
This trip will examine the sarsen stones and landscape in the region of Fyfield Down.
Meet at 10 AM in the walkers car park up the lane on the north side of the A4 (signed 'Manton' or 'Manton House') just west of Marlborough: Grid ref. 159 700.
We will do a three-hour circular walk of about 5 miles around Fyfield Down looking at sarsen stones, including Clatford Bottom and the Stone Age axe-polishing stone known as 'the polissoir'. 

After a lunch break we will meet in Avebury outside the Red Lion Inn at 2:30 PM and spend an hour or two looking around Avebury and it's building stones. The estimated finish time will be 4 PM.

There is a National trust car park in Avebury (pay & display for non-members) and as well as the pub there is a cage by the tithe barn, so plenty of choice for refreshments.

Sunday 24th

OUGS OXFORD - Headington Municipal Cemetery Headstones
When
Sun, 24 June, 14:30 – 16:00
Where
Headington Municipal Cemetery (map)
Description
Guided lithological tour around the gravestones in the cemetery.

Leaders: Nina Morgan and Philip Powell


Hawaiian crater slumping

Slumping on the Rim of Halema'uma'u Crater

Not so long ago the Halema'uma'u Crater was full of liquid magma. the magma has drained away to create the spectacular fireworks which we have all seen.

The emptied crater has now started to slump inwards as the support given by the magma has gone. The USGS has provided some spectacular photos and video. And this site has some discussion. You can get the Video HERE

 
Slumped blocks at the Halema‘uma‘u crater. Image via the USGS, collected on 12th June 2018


Monday, 11 June 2018

More scary animals

Scary Animals - NOT Dinosaurs

Sabre-toothed theraspids dating from about 260 million years ago have been found in Western Russia, as reported HERE

Theraspids are usually described as protomammals and these ones, Gorynychus masyutinae and Nochnitsa geminidens, are headlined in the article as being "Monstrous". A suitably scary illustration is provided.

The newly discovered Gorynychus masyutinae, a top predator, hunting a tree-dwelling herbivore ( Matt Celeskey )

The article is based on THIS ACADEMIC PAPER which is much less exciting. And the paper concerns the description of Nochnitsa and Viatkogorgon, NOT Gorynychus masyutinaeGorynychus masyutinae is described in THIS PAPER.

But that is nit-picking. Most theraspids have been found in South Africa and the Russian specimens are valuable in showing what was happening in the Northern Hemisphere. 

The End-Permian mass extinction killed off many of the theraspids.


Right marginal dentition of Nochnitsa gemenidens
(A) close-up of holotype, KPM 310, with (B) interpretive drawing. Abbreviations: C, upper canine; I, upper incisor; PC, upper postcanine; pc, lower postcanine; rC, replacement upper canine. Scale bar equals 1 cm. Photograph and drawing by Christian F. Kammerer.

Plate tectonics essential for life

Plate Tectonics and the Origin of Life

This long article, brought to my attention by a reliable source, reviews the thesis that plate tectonics is essential for the evolution, if not the origin, of life. It covers many topics but is mostly concerned with how the Earth's crust started moving. And when did it start?

And is there plate tectonics on other planets - research possibilities are endless!


Two new South African tetrapods

Two New South African Tetrapods

A source has sent me THIS LINK concerning two new tetrapod species which, at 360 million years old are 70 million years older than the previously oldest African tetrapods.

They were discovered in 100 tons of shale taken from a road cutting near Grahamstown. The shale has many new, well preserved, species and, it is expected that more will be found.

Full reconstruction of Waterloo Farm by Maggie Newman. Tutusius umlambo, rests on a tree limb, while its close relative Umzantsia amazana swims nearby. Both these early Tetrapods were possibly the first animals to step out of the water and head on to land. Credit: Wits University



Saturday, 9 June 2018

11th to 17th June

NEXT WEEKS EVENTS
11TH TO 17TH JUNE 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 11TH

Dave Green - Planetary Geology
When
Mon, 11 June, 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 12th

Dave green, Field Course - Geology and Landscape in Gloucestershire
When
Tue, 12 June, 19:00 – 21:00
Where
Meet at the car park for the picnic site at Coaley Peak GR SO 794014 (map)
Description
Geology and Landscape in Gloucestershire (evening field course Tuesdays 7-9 First meeting point:- Frocester Hill: Meet at the car park for the picnic site at Coaley Peak GR SO 794014 . Further sessions on website, separate leaflet, and/or by contacting Dave Green.

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

davegeostudies@gmail.com

Wednesday 13th



Thursday 14th



Friday 15th



Saturday 16th 

OU Geol Soc Wessex - Excursion, Geology of the Winscombe Area
When
Saturday, 16 Jun 2018
Where
Winscombe, Somerset (map)
Description
Winscombe area Geology, Mendip Hills, Somerset

Andy Bradley grew up in Winscombe and was a keen caver in his late teens and this started his interest in geology and geomorphology in general and West Mendip in particular.  He moved away at eighteen to study maths at university but he retained his interest and attended a wonderful university extension course in geology at the then Goldsmith College, University of London. For many years he spent all his holidays walking, climbing and travelling with geographers and geologists. Over the last ten years it has slowly dawned on him that the landscape in which he grew up, and which he took for granted, has a uniquely fascinating story to tell and is a geological and geomorphological gem.

Andy says that, although there will be an opportunity to look at the lower formations of the Carboniferous Limestone (Black rock Limestone & Burrington Oolite), the main emphasis will be on the structure of the pericline, its erosion in the Triassic and subsequent recent exhumation.  He hopes to convince you that much of the modern landscape in the West Mendip and its surrounds is essentially Triassic in origin. In Burrington Coombe we shall see more evidence of the ancient landscape juxtaposed with Pleistocene features and the role of geology in cave formation. 


Wonderful scenery, excellent geology with an enthusiastic leader 

Leader Andy Bradley

Contact Jeremy Cranmer
wessexdaytrips@ougs.org
tel.  01305 267133
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Rockwatch at Etches Collection
When
Saturday, 16 Jun 2018
Where
Etches Collection Museum, Dorset BH20 5PE (map)
Description
Etches Collection Museum and Kimmeridge field trip, Dorset BH20 5PE



Private tour and workshop at this new immersive museum of locally found fossils plus a beach visit giving you an opportunity to find your own fossils!  Go back to a time before humans existed, before our planet was formed as we know it today and a time when parts of Dorset were under the sea.  Visit the Exhibition Gallery and experience a laboratory of the senses as you are taken on an immersive journey through life underwater in the tropical seas of Kimmeridge 150 million years ago, surrounded by wonderful, if not weird creatures, some of which have long vanished from the face of our Earth.  Book through the website

 www.rockwatch.org.uk
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SWGA Excursion - Penderyn: disturbed Ground, with Alan Bowring
When
Sat, 16 June, 10:00 – 16:00
Where
Meet at 10.00am at the car park beside the Red Lion pub at the top of the hill in Penderyn (SN 946 087 / CF44 9JR). (map)
Description

Meet at 10.00am at the car park beside the Red Lion pub at the top of the hill in Penderyn (SN 946
087 / CF44 9JR).

From here we will walk around and over Moel Penderyn looking at aspects of the Neath
Disturbance and the legacies of the limestone and silica rock quarrying that fed the Hirwaun
Ironworks. If there is time we will also visit Sgwd yr Eira waterfall, which is nearby. There will be
some rough walking in parts. Finish about 4.00pm


Sunday 17th