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Viklan Dominik / Rocking stone Dominik

A cache by Geokopretina team Send Message to Owner Message this owner
Hidden : 08/09/2014
Difficulty:
1.5 out of 5
Terrain:
2 out of 5

Size: Size: other (other)

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Geocache Description:

Viklan Dominik


Unikatni zulovy skalni utvar se nachazi severne od obce Javorna, ktera je ve spravnim uzemi Bochovska.

Osamoceny balvan je nazornou ukazkou selektivniho zvetravani zul. Viklan Dominik je 3,5 m dlouhy a
1,5 m siroky. Ma zvetravaci plochu, kterou tvori zrnity porfyricky bioticky granit nalezici ke karlovarskemu plutonu. Ten je rozdelen oherskym riftem na severni cast v Krusnych horach a jizni cast ve Slavkovskem lese. Plast tvori proterozoicke a staropaleozoicke metamorfity. Odhad hloubky intreze je 5-7 km. Plutonem je oznacovano velke teleso prevazne kyseleho magmatickeho puvodu zastoupeno granity nachazejici se vetsinou v hloubinach zemske kury.

Viklany patri k napadnym a vzacnym formam reliefu krajiny a zaslouzi si nejen nasi pozornost ale i ochranu. Podle historickych zaznamu byl v minulosti vyhledavan jako cil vyletu jiz od 18. stoleti. Dokazuji to vysekane napisy s letopocty na plose kamene. Zaroven prameny uvadi, ze byval viklan v letech minulych mene stabilni nez je tomu dnes a pri vetsich poryvech vetru se kyval.

Prirodni pamatkou byl vyhlasen v roce 1979 a celkova jeji vymera cini 0,02 ha. Vyvoj viklanu je spojovan s procesy selektivniho zvetravani a odnosu horniny. Na horni casti muzeme videt zajimavy jev - skalni misu.

V okoli viklanu se vyvinuly zejmena hnede pudy - kysela varieta kambizeme typicke a kambizem dystricka. Travni porost obsahuje prevazne druhy kratko - stebelnatych rostlin jako napr. psinecek rozkladity, zvonek okrouhlolisty a lnice kvetel. Na pasekach roste ostruzinik, malinik a hojne se tu vyskytuje vrbka uzkolista.

K prirodni chranene pamatce vede znacena turisticka cesta.


Vzhledem ke kolizi na mape s mysterkou najdete viklan i odpovedi na splneni earthky na uvedenem waypointu!

Pro uspesne zvladnuti teto earthcache nam zaslete spravne odpovedi na nize uvedene otazky na nas profil. Pote se zalogujte. Pokud bude neco v neporadku, ozveme se vam.

  1. Stoupnete si k viklanu, zjistete barvu a odhadnete jeho vysku.
  2. Pomoci GPS zmerte nadmorskou vysku u viklanu.
  3. Urcete svetove strany, na ktere ukazuji ovalne konce viklanu.
  4. Viklan je tvoren porfyrickym granitem. Odhadnete jeho zrnitost a tvrdost.
  5. Na infotabuli se dozvite, ze jsou pro vznik viklanu dulezite dva typy odlucnosti. Jake?
  6. Foto vas ci GPS u viklanu uz neni povinne, ale jiste nas potesi.

Dekujeme za navstevu tohoto pekneho mista, ktere si pravem zaslouzi earthku, a doufame, ze se vam tu libilo stejne jako nam.


EN:


The unique rock formation is located north of the village Javorna, in the administrative teritory of Bochov.

Dominik is 3.5 m long, 1.5 m wide and 2 m high biotic-porphyritic granite stone. According to historical records it was popular tourist destination since the 18th century. This information prove carved inscriptions with dates on the surface of the stone.

The stone was declared as a natural monument in 1979 with total area of 0.02 hectares. Rocking stone itself and the whole basal weathering area is formed by medium-grained and coarse-grained, partly porphyritic granite, which belongs to the Karlovy Vary pluton. The development of balanced rocks is associated with the processes of selective weathering and erosion of rocks. An important factor for the development of balanced rocks is the block or spherical cleavage.

In the surroundings of balanced rock was developed acid brown soil - variety of typic and dystric cambisol. The grassland around mostly consist of short - stalk pastures plants.
The stone is easily accesible by the marked hiking trail.


Due to the collision of our earthcache and an older unknown cache on the map, you will find the stone itself as well as the information table with answers on the waypoint!

Please send us the correct answers to the following questions first and than feel free to log your visit. If something is wrong, we will contact you:

1. What is color and the height of the rocking stone Dominik?
2. What is the altitude of the stone? (use your GPSR to measure it).
3. What is orientation of the stone? To which directions are pointing its ends?
4. The stone is formed by granite porphyry. What is the grain size and hardness of this rock?
5. You can read about two types of exfoliation joint (odlučnost), important for the formation of balanced rocks on information table on the waypoint. Try to find the names of these two types in the text.
6. Your photo with the balanced rock is not a mandatory condition anymore, but certainly we will be pleased by your pictures attached to your logs.

Thank you for visiting our earthcache. I hope you have enjoyed the place as much as we do.

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Informace cerpany prevazne z informacni brozury Prirodni zajimavosti Bochovska vydane z podpory Karlovarskeho kraje. Dale z internetu o karlovarskem plutonu a z infocedule u viklanu.

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Coordinates are in the WGS84 datum

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