Prieboj alebo Zelezne Vrata - Ihrac
(The Stave or The Iron Gate -Ihrac)
Prieboj
(Zelezne Vrata), Jedna z kamennych vezi
Prieboj
alebo Zelezne Vrata
Pred desat miliónmi rokov tvorili Kremnické pohorie cinné sopky
chrliace lávu, ktorá vytvárala krajinný relief. Stuhnuté lávové
masy vidiet v podobe brál a jednotlivých skalných útvarov na
stránach i na hrebenoch pohoria. V doline s názvom Biely potok asi
2 km od Ihráca sa lávové masy prúdiace zo Štôsu (1008 mnm) a
Chomu (1012 mnm) spojili a vytvorili andezitové bralo, ktoré tvoria
platnicky hrúbky 10 až 30 cm následkom tuhnutia vrstvenej
lávy, bralo zahatilo vodu pertekajúcu dolinou. Následkom coho sa
vytvorilo úzke údolné jazero v dlžke asi 1 km. Vytekajuca voda
vymlela otvor v skalnej prekážke v šírke asi 2,5 metra,
až na dno údolia, co spôsobilo zánik údolného jazera, z hrádzi
sa stal útes o výške 13 až 15 metrov.
Ked sa chceli ludia s povozmi dostat za spomínaný útes, postavili
vo výške 2 metre nad prúdiacou vodou v potoku drevený most
(akúsi estakádu) v dlžke približne 30 metrov, cím sa
dostali za útes a tak mohli pokracovat dalej hore dolinou.
Zvyšovaním tažby dreva a zväcšovaním dopravných
prostriedkov most nevyhovoval a tak sa pristúpilo k
rozšíreniu (prebitiu) casti steny útesu v šírke asi 4
metre a tým v stene 3 metre nad potokom vznikla skalná lavica, na
ktorej je uložená ostro zatácajúca cesta. Nárocné dielo
nazvali Prieboj.
Miestni obyvatelia Ihráca nazývajú tento útvar aj Železné
vráta. Vznik názvu pochádza od horára Trvalca, ktorý prehlásil,
že ak sa bude drevo z Bieleho potoka nezákonne vyvážat,
dá na bralo zhotovit železné vráta. Lokalita nie je
ešte biologicky preskúmaná.
Zdroj: Jan Filanda
Prístup ku
Keške
Zaparkujte na suradniciach parkoviska (PARK) a pokracujte peso asi
2km hore dolinou po asfaltovej cesta az ku skalnym veziam.
Ak chcete logovat túto keš, odfotte sa s GPS (alebo alebo
len GPS) pri jednej zo skalnych vezi (dobrovolne). Tiež je
potrebné zodpovedat nasledujúce otázky a odpovede poslat cez e-mail
bud mne cez profil, alebo Sleepy Ghost-ovi cez tento link:
- Popiste strukturu kamennych platniciek (smer a sposob lomu,
pravidelny/nepravidelny tvar atd.)?
- Priblizne v akej vyske pravej veze (pri ceste), ked kracate ku
zeleznym vratam je tuto strukturu najlepsie pozorovat?
- Aku ja priblizna sirka medzi kamennymi vezami?
- Aka je nadmorska vyska kamennych vezi na urovni cesty?
Keš kludne logujte, nemusíte cakat na potvrdenia správnych
odpovedí.
Ak odpovede budú nesprávne, alebo neúplné, bez fotky a pod., budem
Vás kontaktovat emailom. Pokial ale Váš email nepríde do
3-och dní po logu, log bez upozornenia mažem.
Keseri, ktori nasli kesku Zelezne Vrata (autor GaVaSaS) pred
zverejnenim tejto earthcache, mozu logovat tuto kes, ak mi poslu
emailom odpovede na otazky c. 1 a c. 3. Aspon to skuste odhadnut co
najlepsie po pamati. Edukacny obsah je v listingu tejto kese a
dokaz o navsteve v logbooku a ja problem s dodatocnym logovanim
nemam. Samozrejme fotky urobene pri navsteve su vitane.
The Stave
(The Iron Gate), One of the stone towers
The Stave
or The Iron Gate
There were a lot of active volcanos ten million years ago in
Kremnica Mountains, which created the landscape relief. Solidified
lava masses seen in the form of cliffs and rock formations on
slopes and ridges of the mountains. In the valley called White
Creek about 2 km from village Ihrac flowing masses of lava from
peek Stos(1008 m) and Chom (1012 meters) merged to form andesite
rock, forming the plate thickness from 10 to 30 cm due to
solidification of layered lava. Rock made dan, so consequently
water flowing down to valley created a lake in the narrow valley in
length about 1 km. The water was flowing out from the lake,
constantly creating bigger trough in volcanic rock in width 2,5m
and the lake extinctioned. The dam has become cliff of about 13-15
meters hight.
When people wanted to get the carriers behinf reef, built of 2 m
above the flowing water in the creek wooden bridge (a sort of
viaduct) in length about 30 meters, thus reaching the reef so they
can continue further up the valley. Increasing logging and
increasing the vehicles bridge became unsatisfactory. They moved to
spread (stave) of the cliff in width and about 4 meters. They
created rock bench in the wall about 3 meters above the creek on
which is stored sharply bended road. Challenging work called
Prieboj (The Stave).
Locals call this formation 'Iron gates' too. Origin of the name
comes from woodsman Trvalec, who declared that if the timber of
White Creek illegally exported, it can take to construct the iron
gates. Location is not yet explored biologically.
Access to
the cache
Park on coordinates given (PARK) and walk about 2km up the valley
along the asphalt road and the rock towers.
To claim this cache you need to take a photo of you with a GPS (or
your GPS only) in between stone towers or by one of those
(optional). You also need to email me (via the link to my profile
at the top of the page or to Sleepy Ghost via this link) with the
answers to the following questions:
- Describe the structure of the stone plates (direction and
pattern of the joint, regular/irregular shape atc.)?
- In what hight on the right tower (next to road), is the best
spot to observe this structure?
- What is the width between the stone towers at the road level?
Just try your best.
- What is the altitude of the stone towers at the road
level?
Feel free to log this cache. You may not wait for permission to
log.
If your answers are not correct, incomplete, without picture etc.,
i will contact you by e-mail. But if your e-mail is not comming to
me without 3 days, I will delete your log without notice.