Fatra-Tatra Area

Coordinates: 49°10′N 20°8′E / 49.167°N 20.133°E / 49.167; 20.133
Source: Wikipedia, the free encyclopedia.
Fatra-Tatra
Kolový štít and Jahňací štít over Veľké Biele Pleso
Highest point
PeakGerlachovský štít
Elevation2,655 m (8,711 ft)
Coordinates49°10′N 20°8′E / 49.167°N 20.133°E / 49.167; 20.133
Geography
Fatra-Tatra is located in Slovakia
Fatra-Tatra
Fatra-Tatra
Location of the Fatra-Tatra Area in Slovakia
CountriesSlovakia, Austria and Poland
SubdivisionsBranisko, Choč Mountains, Greater Fatra, Horehronské podolie, Hornád Basin, Kozie chrbty, Lesser Fatra, Little Carpathians, Low Tatras, Považský Inovec, Staré Hory Mountains, Strážov Mountains, Sub-Tatra Basin, Súľov Mountains, Tatras, Tríbeč, Turiec Basin, Upper Nitra Basin, Žilina Basin and Žiar
Parent rangeInner Western Carpathians
Extent of the Fatra-Tatra Area (red) in Slovakia

The Fatra-Tatra Area (in geomorphology)

Inner Western Carpathians, a subprovince of the Western Carpathians. Most of the area lies in Slovakia with small parts reaching into Austria and Poland. The highest summit of the whole Carpathians, the Gerlachovský štít at 2,655 m (8,711 ft), lies in the High Tatras
range which belongs to this area.

The Fatra-Tatra Area is from the northern side bounded by

Nízke Tatry and massif of Smrekovica in the Branisko.[3] The southern boundary of Area is the Čertovica line, south of which is the Vepor Belt
.

The Tatra-Fatra Belt consists of Tatric alpine crystalline basement and its autochthonous sedimentary cover, over which the Subtatric nappes (Fatric and Hronic) were thrust.[4]

The name core mountains is derived from the structural element, resistant crystalline

peaks
of the mountains.

Origin

The basement of the core mountains is formed by the

sedimentary rocks, known as Tatric cover units, deposited. They generally consists of clastic and carbonate rocks
.

Schematic cross section through the core mountain:
  Cretaceous and Paleogene sedimentary cover

In the

Alpine Orogeny, that caused movement of large masses of rocks to the North and Northeast. To the South of the Tatric area a 2 superficial nappes, so called Subtatric Nappes, were detached and thrust over the Tatric. These nappes are generally composed of limestone, marl, dolomite and less by sandstones and slates. The lower nappes is called Krížna Nappe (or the Fatric) and the upper is Choč Nappe (or the Hronic). Krížňa Nappe is dominantly composed of rock, that were formed in the Zliechov basin. It was situated in the Fatric area between the Tatric and Veporic units. Fatric had the same basement as the Veporic unit and is considered as former northern part of Veporic, but later during the thrusting its substratum was consumed and subducted. Surface occurrences of Fatric basement remained only as a remnants in the northern part of Veporic Veľký Bok Unit
and few other areas. Choč Nappe, was thrust from the southern area, but its roots were probably consumed entirely, so its paleogeographic position is not exactly known. Choč Nappe is considered as rootless nappe.

After the end of main Eo-Alpine orogenic movement, the area of Western Carpathians was still not so mountainous. In the

Fault-block mountain, it is typical in the area of Basin and Range
.

References

  1. ^ Mazúr, E., Lukniš, M. 1986: Geomorfologické členenie SSR a ČSSR. Časť Slovensko. Slovenská kartografia, Bratislava
  2. ^ Plašienka, D., Grecula, P., Putiš, M., Kováč, M. a Hovorka, D., 1997: Evolution and structure of the Western Carpathians: an overview. Mineralia Slovaca - Monograph, Košice, s. 1 – 24
  3. ^ Plašienka, D., 2006: Princípy regionalizácie geologickej stavby Malých Karpát a Považského Inovca. In: Kováč, M., Dubíková, K., Nové metódy a výsledky v geológii Západných Karpát. Zborník 2006, Univerzita Komenského, Bratislava, p. 51 – 56
  4. ^ Hók, J., Kahan, Š., Aubrecht, R., 2001. Geológia Slovenska. Archived 2011-07-19 at the Wayback Machine Univerzita Komenského, Bratislava, 43 p.