Photo-a-day - more Geology :-)

[azziria]

To Hunstanton today, on the north Norfolk coast, for a geology field trip. The cliffs here are amazing - not particularly high, but with a most distinct colour change. In the photo you can see the Carstone (Early Cretaceous orange sandstone) at the base (actually the black rocks in the foreground are a coarse sandstone that underlies the Carstone), then above it a band of Early Cretaceous Red Chalk (laid down under the sea off the shores of an island, and full of belemnite and brachiopod fossils), all topped off with Late Cretaceous White Chalk (laid down in a deep marine environment and full of fossil shells, sponges and shrimp burrows). (This chalk is actually the same stuff as at Fowlmere, which I visited a couple of weeks ago.)

Comments

[lj_stowaway]

wow! That's *gorgeous*!

[astropoet.livejournal.com]

Oh wow! Red chalk? What caused the redness? Did they say?

Lovely!

Rocks! Yipee!

[azziria.livejournal.com]

I'd never seen red chalk before.

Apparently the red colouration is due to iron, which comes from land, therefore the conclusion is that the chalk was laid down in a marine environment near to an island.

Good, isn't it? :-)

[celestialwillow.livejournal.com]

Hi,

I'm one of Astropoets friends and she mentioned to me that you'd posted this picture. I was on that field trip as well! Here's some proof in case you think I'm just a crazy person!

http://pics.livejournal.com/celestialwillow/pic/001g5caa

Your user info says you're a red head, are you Helen? I'm Laura, if that helps! :)

[azziria.livejournal.com]

No, I'm not Helen, I'm Penny.

Lovely and wet, wasn't it?!

[celestialwillow.livejournal.com]

Ah! Were you in the last tutorial with Fiona and had an apple label stuck on you?! That would follow because you said then that you had kids! :)

That was beyond wet...

Would you mind me friending you? I could do with having someone else around who understands the rock thing!

[azziria.livejournal.com]

Um, yes, that was me... my son was to blame for that. For some reason the misguided child still thinks it's amusing... *g*

Please do friend me - as you say, it's always good to have someone else around who understands the rock thing :-)