Lietuviškai: Visa Lietuvos teritorija yra ant Baltijos
atrezinio baseino (visas baseino plotas yra 460 tukst km2, Lietuvos
– 65 200 km2). Atrtezinis baseinas, tai požeminio vandens baseinas,
kuri sudaro pakaitomis išsideste vandeningu uolienu ir vandeniui
nelaidžiu uolienu (vandensparu) sluoksniai (aukštai). Skirtingi
aukštai susidare ivairias geologiniais periodais. Baltijos baseine
tokiu aukštu yra 3-4. Vanduo dviejuose viršutiniuose aukštuose yra
mažos mieralizacijos, nes pasipildo iš lietaus bei kito paviršinio
gelo vandens. Toks vanduo paprastai naudojamas kaip geriamsis
vanduo (beveik visas centralizuotai teikiamas geriamasis vanduo
Lietuvoje išgaunamas iš arteziniu grežiniu). Žemeskiuose aukštuose
vanduo yra suresnis, didesnes mineralizacijos. Toks vanduo
tradiciškai nauodojamas gydymui, pvz. Druskninku, Birštono
mineraliniai vandenys. Taip pat žr. Lietuvos geologijos tarnybos
puslapi
Vandieningiems artezinio basieno sluoksiams budingas spudis.
Vandensparoje atsiradus plyšiui suspaustas vanduo savaime veržiasi
i žemes paviršiu ir susidaro artezinis šaltinis (versme). Ulos akis
– vienas iš tokiu šaltiniu. Šaltinis atrodo lyg mažytis ežerelis,
kurio centre nuolat kunkuliuoja vandens sroves maišomas smelis.
Šaltinio debitas yra apie 2 l/s. Vanduo kyla aukšciau Ulos vandens
lygio ir upeliu nuteka i Ulos upe. 2000 m. versme paskelbta
hidrogeologiniu gamtos paminklu.
Nuo seno žmones Ulos akiai priskiria ivairiu magišku savybiu.
Pavyzdžiui sakoma, kad Ulos akies vanduo gali pagelbeti nuo ivairiu
ligu, jei prie šaltinio bus einama vos saulei nusileidus. Taip pat
pasakojama apie jame nugrimzdusi jauti.
Ši lobi galesite pažymeti kaip rasta jeigu atsakysite i žemiau
pateiktus klausimus:
- Ivertinkite, keliais metrais vandens lygis Ulos akyje yra
aukštesnis negu Ulos upeje?
- „Ištirkite“ šaltinio vandeni ir nustatykite ar jis teka iš
viršutiniu ar iš apatiniu artezinio baseino aukštu?
- Akies skersmuo yra 3-4 metrai, o koks "vyzdzio", kuriame
"verda" smelis, skersmuo?
- Kokius dar šaltiniu tipus žinote? (šio klausimo atsakyti
nebutina)
Ataskymus i klausimus atsiuskite lobio autoriui Geocaching.com
žinute. Nerašykite atsakymu lobio loge! Taip pat prie log'o
prisegite nuotrauka, kurioje matosi Ulos akis, GPS irenginys ir
lobio radejas. Registruoti lobio radima galima nelaukiant
patvirtinimo, taciau logai neatitinkantys auksciau minetu
reikalavimu bus pašalinti.
English: Whole territory of Lithuania is on a Baltic
artesian basin (area of the basin is 460‘000 sq. km compared to
65‘200 km2 of Lithuania). Artesian basin is groundwater basin
consisting of interchanging layers of aquifer layer containing
water and impermeable rock or clay. There can be multiple layers
formed in different geological periods. In case of Baltic artesian
basin there are 3-4 of such layers. Water in the two upper aquifers
has low mineralisation because it is recharged with surface
freshwater. Such water is usually used as potable water (actually
almost all centrally supplied water in Lithuania comes from
artesian wells). In the lower levers water has more dissolved
salts. Such mineral water was traditionally used for medical
purposes in Lithuanian SPA towns of Druskininkai and Birštonas.
Also see this page on groundwater form Lithuanian geological
service
page.
Weigh of layers is building pressure in aquifers of artesian
basin. So when the water finds an outlet it flows upwards. If it
reaches the surface of the earth – we have a naturally flowing
artesian spring. Ula eye is an example of one. The spring outlet
looks like a tiny lake. In the centre of the lake sand mixed by
strong current bubbles. Flow of the spring is 2 l/s. Water raises
above water level of Ula and flows as a tiny creek into the river.
The spring was announced a natural monument of hydrogeology in year
2000.
Since the old times people used to assign special and magical
properties to the spring and its water. For example old people say
that the water can heal various diseases if collected after sunset.
There are also tales about a bull which drowned and resurfaced in a
nearby lake. You can claim this cache if you answer questions
below.
- Estimate how many meters water level in Ula Eye is higher
compared to water level in Ula river.
- Inspect water of the spring and tell if it comes from upper or
lower layers of the basin?
- Diameter of the spring lake is 3-4 meters. Estimate what is
diameter of the area of the bubbling sand?
- What other types of springs do you know? (answer is
optional)
Please send the answers to cache owner via Geocaching messaging
system. Do not post answers directly in the log! Please take a
photo of yourself and a GPS with Ula Eye visible in the background.
Attach the photo to your log.
You don't have to wait for confirmation but logs not matching
the requirements will be deleted.