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The Dovžan Gorge ( sl, Dovžanova soteska or ''Dolžanova soteska'') is a gorge in Slovenia that was carved by the
Tržič Bistrica The Tržič Bistrica ( sl, Tržiška Bistrica) is a river in Upper Carniola, Slovenia. The river is in length. It starts in the Karawanks, runs through the Dovžan Gorge and the town of Tržič, and joins the Sava near Podbrezje. References E ...
River. The river flows through unique waterfalls over large rounded blocks of white quartz conglomerate. These large blocks tumbled into the river from Pine Cliff ( sl, Borova peč) above the right bank, named after the
Scots pine ''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US) or Baltic pine, is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-green leaves and orang ...
that overgrows its steep slopes. The gorge is picturesque because of the six high stone pillars known as the Kušpergar Towers ( sl, Kušpegarjevi turni), where a climbing area has been set up. A geological trail, the Dovžan Gorge forest nature trail, a mountain trail, a scenic trail, and a trail to a
Partisan Partisan may refer to: Military * Partisan (weapon), a pole weapon * Partisan (military), paramilitary forces engaged behind the front line Films * ''Partisan'' (film), a 2015 Australian film * ''Hell River'', a 1974 Yugoslavian film also know ...
underground press run through the gorge. In the small settlement of Čadovlje is the Jamenšnik farm with a flax drying oven ( sl, paštba) with the year 1766 carved on it; it is an example of unique
Karawanks The Karawanks or Karavankas or Karavanks ( sl, Karavanke; german: Karawanken, ) are a mountain range of the Southern Limestone Alps on the border between Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: ...
architecture and ethnographic heritage. The gorge has been declared a natural monument of Slovenia and lies north of
Tržič Tržič (; german: Neumarktl) is a town in northern Slovenia, close to the Austrian border. It is the seat of the Municipality of Tržič. Geography The town is located within the historic Upper Carniola region on the Tržič Bistrica River, ...
, along the road from Tržič to Jelendol.


Natural monument

The Dovžan Gorge was protected as a natural monument in 1988 due to its status as a unique site of plant and animal fossils in rocks from the
Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ...
. Numerous species of brachiopods and the
foraminifer Foraminifera (; Latin for "hole bearers"; informally called "forams") are single-celled organisms, members of a phylum or class of amoeboid protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an ...
''Schwagerina carniolica'' were first found and described in the gorge. The picturesque gorge was formed by the Tržič Bistrica River cutting through various conglomerates, limestones, sandstones, and clays. The gorge contains the largest series of barrier waterfalls in Slovenia, formed from quartz conglomerate. Pine Cliff ( sl, Borova peč), which is overgrown with a
Scots pine ''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US) or Baltic pine, is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-green leaves and orang ...
forest, is also composed of quartz conglomerate.


Rock


Sandstone

Sandstone is the youngest stone represented in the gorge. It formed during the
Lower Permian The Cisuralian is the first series/epoch of the Permian. The Cisuralian was preceded by the Pennsylvanian and followed by the Guadalupian. The Cisuralian Epoch is named after the western slopes of the Ural Mountains in Russia and Kazakhstan and ...
and is therefore about 250 million years old. During this period, which had a desert climate characterized by large temperature differences between day and night and little precipitation, large rocks under the influence of weather conditions disintegrated into small pieces or sand. However, when this area was flooded by the shallow sea, these particles, together with silt and clay, were consolidated into new rock.


Tarvisio breccia

Tarvisio breccia takes its name from
Tarvisio Tarvisio (German and fur, Tarvis, sl, Trbiž) is a comune in the northeastern part of the autonomous Friuli Venezia Giulia region in Italy. Geography The town is in the Canal Valley (''Val Canale'') between the Carnic Alps and Karawanks range ...
,
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
, where the rock was first observed. It was later found that the Dovžan Gorge had large quantities of the same rock. It is slightly older than sandstone, about 260 million years old. It was formed when large areas of limestone rose above sea level. Due to strong tectonic forces, this rock was broken up and crushed. Smaller pieces accumulated in large quantities on steep banks. Due to gravity, this gravelly material repeatedly slid into the shallow sea, into which inland waters carried silt, sand, and clay. This fine material mixed with the limestone gravel to create Tarvisio breccia.


Limestone

Limestone is the only fossil-bearing rock in the Dovžan Gorge. The most typical fossils in the gorge are
crinoid Crinoids are marine animals that make up the class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, which are ...
s,
algae Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular mic ...
,
brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, w ...
s, and
fusulinids The Fusulinida is an extinct order within the Foraminifera in which the tests are traditionally considered to have been composed of microgranular calcite. Like all forams, they were single-celled organisms. In advanced forms the test wall was dif ...
.


Quartz conglomerate

Flint Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Flint was widely used historically to make stone tools and start fir ...
is the strongest and oldest rock in the Dovžan Gorge. Like all rocks in the gorge, this is also a
sedimentary rock Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...
. It was formed in a similar manner to Tarvisio breccia. Almost 300 million years ago, the
Karawanks The Karawanks or Karavankas or Karavanks ( sl, Karavanke; german: Karawanken, ) are a mountain range of the Southern Limestone Alps on the border between Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: ...
were under a shallow sea, and rivers carried gravel, sand, and clay from the land, which later formed
conglomerate Conglomerate or conglomeration may refer to: * Conglomerate (company) * Conglomerate (geology) * Conglomerate (mathematics) In popular culture: * The Conglomerate (American group), a production crew and musical group founded by Busta Rhymes ** Co ...
. The pebbles are well rounded, indicating their long journey. They are closely packed together, and the intermediate binder is crushed quartz sand.


References


External links

*
The Dovžan Gorge
at Visit Tržič {{DEFAULTSORT:Dovzan Gorge Canyons and gorges of Slovenia Climbing areas of Slovenia