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Virtueller Geocache

Salt lake Alikes in Tigaki

Production of table salt in this endorheic basin

von 4spring     Griechenland

N 36° 53.361' E 027° 10.467' (WGS84)

 andere Koordinatensysteme
 Größe: kein Behälter
Status: kann gesucht werden
 Zeitaufwand: 0:20 h   Strecke: 0.5 km
 Versteckt am: 25. November 2012
 Veröffentlicht am: 28. November 2012
 Letzte Änderung: 28. November 2012
 Listing: https://opencaching.de/OCF038
Auch gelistet auf: geocaching.com 

25 gefunden
0 nicht gefunden
0 Bemerkungen
0 Beobachter
0 Ignorierer
252 Aufrufe
12 Logbilder
Geokrety-Verlauf

große Karte

   

Infrastruktur
Der Weg
Wegpunkte
Zeitlich
Saisonbedingt

Beschreibung    Deutsch  ·  English

The most commonly known salt is sodium chloride (NaCl) as we use it daily to improve the taste of our food. But where do we get it from? (supermarket is the wrong answer). Near Tigaki (Tigkaki), in the direction of Marmari you will find the Salt Lake Alikes (Alikis, Alykes). Up to about mid of 20th century salt was produced in this lake (up to 20.000 centner annually). Now you will still see some salt on the bottom of the see (picture), some of the former, old buildings and remains from the salt pans as well as special animals (e.g. flamingo) and plants (which need salt for growing). However, in this EarthCache we will concentrate on the production of the mineral salt.

Fundamentals on sea salt production
Sea salt is obtained by evaporating of seawater. A saltern is used to collect sea water which is dilute brine. The concentration of the salt needs to be increased by evaporating of the water. This can be done by heating on fire. Then the concentrated slurry is washed with sea water so that mud and impurities (sea water contains many other kinds of salt which partly taste bitter) are settled out. Now the final evaporation follows e.g. over a fire. Wood or peat was commonly used in northern Europe (e.g. such salt production ended on the German islands Halligen in 1782 only). http://de.wikipedia.org/wiki/Hallig Nowadays about 20-30% of the worldwide used salt is made from seawater.

Why was sea salt produced at the lake Alikes in Tigaki?
The salt lake in Tigaki is endorheic. An endorheic basin (also called terminal or closed basin) is a closed drainage basin that retains water and allows no outflow in other external bodies of water, such as rivers or oceans, but converges instead into lakes that equilibrate through evaporation (for example: Aral Sea, Caspian Sea, Etosha pan). Normally, the water of a lake flows out through rivers and ultimately ending up in the ocean. However, in Tigaki, the water of the lake Alikes can not leave this lake, in fact, the water of the ocean flows into this lake. As the water is constantly evaporating due to the heat from the sun, the concentration of salt is increasing resulting into dilute brine. This is the natural starting point for the production of sea salt.

What is still to be seen from the salt production?
At the coordinates you will find a bridge and two former machine buildings (question 3 refers to it). You will also see the three water encroachments which were used to control the amount of sea water flowing into the lake (question 1 referring to this). If you follow the road until its end and the water level of the lake is low you will see the remaining parts of the salt pans (salt evaporation ponds) especially lines of wood posts which formed the levees used to separate the pans (my photo was taken in October). Those salt evaporating ponds (also called saltern or salt pan) are shallow artificial ponds. The sea water was fed into those ponds and water was drawn out through natural evaporation which allows the salt to be subsequently harvested.



To log this EarthCache, please answer the following questions:
1. Why was it important to control the amount of seawater flowing into the lake / the salt pans?
2. Why was the salt production in Tigaki less energy consuming than in northern Europe?
3. How many round windows (with screen bars) does the eastern engine house have ? (house at the coordinates above, also shown on the picture below, all four walls together)

Please send me an email with the answers (in English or German) via my Geocaching profile. I will only respond if you have incomplete logging requirements. So go ahead and log your cache.
I would be pleased if you could attach a picture (optional) to your log which shows one of the various facets of the salt lake (without whistle-blowing on the windows of the engine house).


Verschlüsselter Hinweis   Entschlüsseln

Ab pnpur-obk uvqqra

A|B|C|D|E|F|G|H|I|J|K|L|M
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

Bilder

Flamingos
Flamingos
salt pans with wood posts for levees
salt pans with wood posts for levees
dry salt at the lake Alikes in Tigaki
dry salt at the lake Alikes in Tigaki
dried salt at the lake Alikes in Tigaki
dried salt at the lake Alikes in Tigaki
water encroachments and engine house with windows
water encroachments and engine house with windows

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Logeinträge für Salt lake Alikes in Tigaki    gefunden 25x nicht gefunden 0x Hinweis 0x

gefunden 13. Oktober 2024, 14:43 Heidiekkroamer hat den Geocache gefunden

Diesen Cache haben wir besucht und die Antworten über gc.com verschickt.
Danke für den Cache.

Bilder für diesen Logeintrag:
IMG_0IMG_0

gefunden 10. September 2024, 10:01 Ikzorn hat den Geocache gefunden

Meinen 7 Cache konnte ich hier angehen.
Danke 4spring für das legen und pflegen des Caches.

gefunden 14. Juli 2024, 20:31 Mümmeltier hat den Geocache gefunden

Salt lake Alikes, eines der Rundfahrt Ziele der Tour heute. Ein kurzer Spaziergang an die ersten Salzablagerungen und die Besichtigung der Maschinenhäuser, Verladerampe und Salzpfannen.
Was trocken aussieht ist scheinbar noch lange nicht trocken. Aber ein paar Bröckchen Salz konnten doch geerntet werden. Auch konnten schöne Eindrücke gesammelt werden und auch Antworten ausgearbeitet werden. Nach getaner "Arbeit" dann auch noch ein kurzes erfrischendes Bad im Meer.

Danke an 4spring fürs Legen und Pflegen meines 88ten Caches.
Danke fürs Herführen und die Ausarbeitung der vielen Informationen.

Bilder für diesen Logeintrag:
Bild 1Bild 1
Bild 2Bild 2
Bild 3Bild 3
Bild 4Bild 4
Bild 5Bild 5

gefunden 01. August 2023, 17:35 Mfredchen hat den Geocache gefunden

Bei unserem heutigen Strandspaziergang haben wir auch diesen interessanten Lost Place aufgesucht. Einsam ist man hier allerdings nicht und obwohl der See zur Hälfte ausgetrocknet ist, wird er von tausenden Vögel bevölkert. Flamingos waren aber leider keine vor Ort. Diese haben den See in diesem Jahr wohl bereits im Mai verlassen

TFTC Mfredchen

Bilder für diesen Logeintrag:
LadyLady

gefunden 26. Juli 2023, 11:51 Lavina&Gekkie hat den Geocache gefunden

Today we went on a bike trip and also circled the salt lake. Very interesting!  Yesterday we saw it from Zia. The salt partly looks like a blanket of snow - crazy at 35 degrees in the shade.
We weren't the only ones who used the little house as a shady spot.
TftC # 106

Bilder für diesen Logeintrag:
Snow or salt?Snow or salt?