LT:
Upės žiotyse, prieš Verknei susiliejant su Nemunu, dešiniajame jos krante stūkso garsusis Ožkų pečius. Tai konglomerato uola, kurią sudaro gana tvirtai į uolą susicementavęs smėlis ir žvyras su gargždu bei rieduliais. Dūlant uolienoms susidarė daugybė įdubimų su nišomis, todėl uola primena milžinišką bičių korį ar pilies kuoro griuvėsius. 1984 m. uola paskelbta geologiniu gamtos paminklu.
Konglomerato uola, nebūdama visa vienodai kieta ir tvirta, palaipsniui ardosi. Ją veikia ir natūralūs fizinio dūlėjimo, erozijos reiškiniai, ir žmonių laipiojimas. Todėl iškils rimta grėsmė - prarasdamas tvirtą pagrindą ir paklusdamas gravitacijos dėsniui, nemažas konglomerato luitas gali atitrūkti ir nuskristi žemyn. Uola - unikalus, nors ir paplautas, apgriuvęs, gamtos kūrinys.
Seniau Ožkų pečius buvęs dar įspūdingesnių dydžių. Žmonės dar pamena, kaip beveik prieš šešiasdešimt metų nugriuvo į upę didysis Ožkų pečius, ant kurio sutilpdavo geras pusšimtis vaikų.
Netoli Ožkų pečiaus visuomet sustodavo upe keliavę sielininkai. Vieta buvo žinoma, kaip sielininkų naujokų krikštynų vieta. Čia pririšę sielius, jų plukdytojai maudydavo lediniame Verknės vandenyje pirmą kartą pro ją plaukiančius.
Norėdami užregistruoti rastą lobį pridėkite Ožkų pečiaus nuotrauką kartu su taško koordinatėmisir atsakykite:
1) koks konglomerato uolos aukštis;
2) kokios uolienos sudaro konglomeratą.
Atsakymus siųskite el.paštu bullweenbleens@gmail.com
EN:
Basic Info
A conglomerate is a rock consisting of individual clasts within a finer-grained matrix that have become cemented together. Conglomerates are sedimentary rocks consisting of rounded fragments and are thus differentiated from breccias, which consist of angular clasts. Both conglomerates and breccias are characterized by clasts larger than sand (>2 mm).
Conglomerates are classified in terms of both their rounding and sorting.
Texture
Paraconglomerates consist of a matrix-supported rock that contains at least 15% sand-sized or smaller grains (<2 mm), the rest being larger grains of varying sizes.
Orthoconglomerates consist of a clast-supported rock with less than 15% matrix of sand and finer particles.
Metamorphic alteration transforms conglomerate into metaconglomerate.
Clast composition
Conglomerates are classified for the lithologies of the clasts:
- Monomict - clasts with only a single lithology;
- Oligomict - clasts of only a few different lithologies;
- Polymict - clasts of many different lithologies;
- Intraformational - clasts derived from the same formation in which they are found;
- Extraformational - clasts derived older rocks than the formation in which they are found.
Clast size
Conglomerates are also classified by the dominant clast size:
- Granule conglomerate 2–4 mm;
- Pebble conglomerate 4–64 mm;
- Cobble conglomerate 64–256 mm;
- Boulder conglomerate >256 mm.
Info source: wikipedia.org
Conglomerate Rock of Goats' Stove
is situated in front of the confluence to the two most beautiful rivers of Birštonas Municipality – Nemunas and Verkne.
This conglomerate originated from inter-till layers cemented with calcium carbonate, which precipitated from groundwater. It was formed during the Gruda (Brandenburg) and Baltija (Pomeranian) stages (between 12 000 and 24 000 BP) of the latest (Nemunas/ Weichselian) glaciation.
Since old times this unusual spongy rock of sand, gravel, pebble and boulders has been referred to as a stove of goats because the hinds, which by the locals were called goats, from the surrounding areas were fond of climbing and taking the sun over there. Rafters also came to like that place. Every year they used to bath in the water of the Verkne River those who were drifting rafts for the first time.
In 1984, the rock was declared a geological nature monument. The best view of rock is visible when sailing in the Verkne River.
In order to log a find add geotagged photo of Conglomerate of Goats' Stove and:
1) name measured height of Conglomerate;
2) answer to which Clast Size and Texture classification rock conglomerate of Goats' Stove does belong.
Email your answers to bullweenbleens@gmail.com
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