First Light Wizards photo contest! - Theme "Landscape" – Entry #1 - The Pinnacles Desert, Western Australia (ENG/POR)steemCreated with Sketch.

in #lightwizards7 years ago (edited)

This is my post in the Light Wizards Photo Contest by @benfenson.

Read more about #LightWizards here: https://steemit.com/photography/@benfenson/light-wizards-photo-contest-week-1-usd30sbd-prize-pool

Entry #1

Theme: Landscape

Photo: The Pinnacles Desert, Western Australia.

pinnacles good.jpg

Read about this strange phenomenon below (source http://www.visitpinnaclescountry.com.au/pages/the-pinnacles/)

Leia abaixo informações sobre este estranho fenómeno (tradução by @nolasco)

I used my Canon EOS 5D MKIII and my Sigma 24-70mm f/2.8 EX DG HSM Lens.
Edited in Lightroom.
Settings: f/10 at 1/640, ISO 100, 24mm.

Thanks a lot @benfenson!

Steem on, Steemians! Have a great Thursday :)

Isabel
www.isabelnolasco.com

ENG - So how did these strange pinnacles form? http://www.visitpinnaclescountry.com.au/pages/the-pinnacles/

The coast of Western Australia, from Shark Bay nearly to Albany, has a near continuous belt of Tamala Limestone (probably more accurately called) aerolian calcarenite - ie. wind blown calcium carbonate - which has been produced by the combination of wind, rain and the cementing agent of calcium.
A set of unique circumstances produced the pinnacles. Firstly the huge sand dunes stabilised. The rains which fell on the dunes leached down through the sand carrying the calcium. This resulted in the lower levels of the dune solidifying into a soft limestone. As this stabilisation occurred a layer of soil formed on top of the dune which allowed plants to grow and further cemented the limestone below. Gradually the lowest layer of soil, which lay between the surface and the limestone, formed into a hard cap which resulted in the old dunes having three levels - a soil and plant level near the surface, a hard cap below the surface, and a thick layer of soft limestone at the bottom of the dune.
Inevitably the roots from the plants on the top level found cracks and broke up the hard cap and the layer of soft limestone. The result was that under a surface covered with plants and soil the pinnacles developed. No one knows for sure how long ago this process occurred. It may have started as long ago as 500 000 years but equally it may only be a few thousand years old and it may still be continuing today. The Western Australian Museum has opted for some time in the last 80 000 years.
Anyway the advent of drier weather in the region resulted in the top layer of plants and soil being removed and gradually the pinnacles were exposed so that today they stand like strange sentinels on a plain of wind blown sand.

POR - Como é que se formaram estes estranhos pináculos? (tradução by @nolasco)

A costa da Austrália Ocidental, de Shark Bay até quase a Albany, tem uma cintura quase contínua de calcário tamala (mais precisamente) calcarenito aerolian - ie. carbonato de cálcio fundido pelo vento- produzido pela combinação do vento, chuva e o agente de cimentação de cálcio.
Um conjunto de circunstâncias únicas produziu os pináculos. Em primeiro lugar, as enormes dunas de areia estabilizada. As chuvas que caíram nas dunas infiltraram-se na areia transportando o cálcio, resultando na transformação da duna solidificada num calcário mole. Como esta estabilização ocorreu na camada de solo formada no topo da duna, permitiu que as plantas crescessem, ficando mais consolidado o calcário no nível inferior. Aos poucos, a menor camada de solo que ficava entre a superfície e o calcário formou uma tampa dura, que criou as dunas em três níveis –as dunas formadas pela areia e as plantas à superfície, uma camada dura abaixo da superfície e uma espessa camada de calcário suave na parte inferior da duna.
As raízes das plantas no nível superior fixaram-se nas rachas e quebraram a tampa dura e a camada de calcário macio. O resultado foi que, sob uma superfície coberta com plantas e areia, os pináculos foram-se criando. Ninguém sabe ao certo há quanto tempo este processo ocorreu. Pode ter começado há 500.000 anos, mas igualmente a apenas alguns milhares de anos, continuando o processo de formação ainda hoje. O Western Australian Museum optou por fixar um marco nos últimos 80.000 anos.
De qualquer forma o clima mais seco da região provocou a erosão e a remoção da camada de plantas e de solo na camada superior e, gradualmente, os pináculos ficaram expostos, de modo a parecerem, hoje, uma multidão de sentinelas estranhas numa planície de areia varrida pelo vento.

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Thanks a lot!

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Great! I'm happy the human liked it!

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Adorei!! Eu nunca fui para a Australia, mas todas vezes que vejofotos já imagino o espetáculo!!

É um país / continente fascinante! Acho que nem que ficasse lá a vida toda iria conhecer tudo! Vou fazendo os possíveis...

Wow! So beautiful landscape! I want to go there :) Have a nice day :)

Oh... it's really a wonderful place :)... have a great day yourself! cheers, my friend (é portuguesa ;)?)

Ehehehe sim sou portuguesa :) Obrigada!

Boa! Então podemos falar na nossa maravilhosa língua! :)))))

Wow great write up @noalasco i didn't know that and beautiful image.
Can't wait to get over to West Oz myself!
Thanks for the support!

Thanks a lot for your kind words! You better go soon ;), it's a wonderful coast.
Keep up the good work!

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Great shot and great story!

Thanks a lot, Greg! I'm happy you liked them!

And you got me interested in this new contest, so thanks to you as well!

Our friend Steemian @pixelfan brought it to me :). Cheers!

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