Mark Godden

An enthusiastic chartered geologist / chartered mining engineer / amateur photographer / radio amateur, who works in the UK's mining sector.

[Mark Godden @Titanites]

We've Just returned from a fantastic week's holiday in west Devon. Mainly lovely weather with lots of interesting rocks to bother....

[Mark Godden @Titanites]

@BuddhistMatt @PeteGraydon Mainly Portland stone but technically speaking, some Purbeck beds (which overlie the Portland beds) have been exploited, mainly for aggregates. All late Jurassic in age.

[Mark Godden @Titanites]

Visited Lud's Church in Staffordshire last week. An amazing natural chasm with lots of associated folklore, incised into the millstone grit. Quite a trek but well worth the effort. Another one off of the bucket list.

[Mark Godden @Titanites]

@WGCG_UK Nice photo of Gad Cliff there!

[Mark Godden @Titanites]

@Golf_5_TM Probably not.

[Mark Godden @Titanites]

@jurassicg1rl @DarrenP72292935 I'm afraid that I no longer work in the mines on Portland, but if I did, I would have been happy to give you a tour. I changed jobs about a year ago.

[Mark Godden @Titanites]

@TheHistoryMouse @TimPalmerEO For completeness, here is what Warland has to say:

[Mark Godden @Titanites]

@TheHistoryMouse @TimPalmerEO I would say that in a more conventional situation, the imposts transfer gravitational loading from an arch carrying a high vertical component but in the flat arch in Tim's Photo, much of this loading is thrown into the walls with a higher horizontal component?

[Mark Godden @Titanites]

@TheHistoryMouse @TimPalmerEO In architecture, an impost or impost block is a projecting block resting on top of a column or embedded in a wall, serving as the base for the springer or lowest voussoir of an arch. Not sure you'll find a better word? 2/2

[Mark Godden @Titanites]

@TheHistoryMouse @TimPalmerEO I'm not really an expert (at anything) but did spend many years working closely with architectural masons. This is what Wikipedia has to say: 1/2

[Mark Godden @Titanites]

This apparently gravity defying topple has still not fully toppled after nearly ten years of toppling. It's still hanging in there...

[Mark Godden @Titanites]

https://t.co/4yZpPSBWjO

[Mark Godden @Titanites]

Visited Kilve beach in north Somerset for the first time today. Some great early Jurassic geology on display. I'm sure that I'll be back.

[Mark Godden @Titanites]

@Geolominologist Yes. There has to be a place for some collecting (in my opinion) but I agree, I saw numerous people beating the hell out of various unfortunate cobbles using a variety of 'weapons' none of which had any chance whatever of recovering anything, only destroying.

[Mark Godden @Titanites]

Nice at Lyme today (dodging showers).

[Mark Godden @Titanites]

@PeteGraydon The 'reinforcement' must be something buried beneath the path. Possibly from quarrying or from the military (radar or anti-aircraft guns)? Lots of movement in the cliffs this year. A process that never stops.

[Mark Godden @Titanites]

@PeteGraydon It was Portland's main sewer outlet. Raw sewage was discharged just off shore.

[Mark Godden @Titanites]

A nice day in lovely Lyme yesterday, at the bottom of the Jurassic. Consorting with ammonites.

[Mark Godden @Titanites]

Lovely light at the 'Hell Stone' on the hills above the village of Portesham at the weekend.