Porphyry Land Geopark

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Logo of the Geopark Porphyrland

The Geopark “Porphyry Land. Steinreich in Sachsen “ (Geopark Porphyrland for short) is a national geopark founded in 2006 and certified since 2014 in Germany and is located approx. 20 km east of Leipzig and approx. 70 km northwest of Dresden . The carrier is the "Geopark Porphyrland". Steinreich in Sachsen eV “based in Grimma .

location

The Geopark comprises areas of the North Saxon plateau and hill country , the central Saxon loess hill country and the Mulde loess hill country with a total area of ​​approx. 1,200 km². The region stretches from Thallwitz in the north via Wurzen , Grimma and Colditz to Rochlitz in the south. Wermsdorf and Mügeln mark the eastern border, Brandis and Naunhof form the western boundary of the Geopark area. The area includes parts of the districts of Leipzig , Northern Saxony and Central Saxony .

Regional geology

The Geopark Porphyrland is located in the area of ​​the Northwest Saxon volcanic complex. In the Rotliegend, about 300 to 275 million years ago, in the course of catastrophic super eruptions , caldera systems with several hundred meters thick ignimbritic deposits (trachy-) Dacitic to rhyolite composition emerged. In addition to these massive pyroclastic deposits, sub- volcanic rocks ( granite porphyries ) occur in these calderas . Rhyolitic to Rhyodacian lavas also occur subordinately in the north-west Saxon volcanic complex. The rocks (often summarized under the name “ porphyries ”) are stored discordantly above the Variscan folded subsoil and are consistently close to the surface. Deposits from the Zechstein and Mesozoic Era only play a subordinate role. The area was overprinted in the Tertiary and Quaternary periods .

The humid and warm climate in the late Cretaceous and at the beginning of the Tertiary period weathered the rhyolites close to the surface and originally formed kaolin ceilings up to 100 m thick .

During the Tertiary, between around 25 and 20 million years ago today, northwest Saxony was on the edge of the Paleo-North Sea, in which sands, silts and clays were deposited and lignite formed.

With the elevation of the Ore Mountains between the Plio and Pleistocene , fluvial processes and deposits formed the landscape.

The inland ice glaciers from the Elster and Saale Cold Ages caused a reshaping of the volcanic rocks and the tertiary overburden in the Quaternary. Today's hilly landscape was modeled during the change between warm and cold periods , when loose sediments such as gravel, sands and looseness were deposited. The discovery of the wind and glacier cuts on the porphyries in the Hohburg mountains were decisive for the formulation of the Ice Age theory.

Attractions

Numerous sights can be visited in the Geopark. A selection is shown below:

Geotopes

  • Hohburg kaolin pit and lignite cut
  • Quarry on the Zinkenberg, Röcknitz
  • Owl's air in Wechselburg

Palaces and castles

Industrial monuments

Visitor Centers (Geoportals)

The visitor can access the sights of the Geopark via visitor centers, the so-called Geoportals. Here tourist information is kept ready and thematically different permanent exhibitions are offered.

  • Röcknitz Geoportal "Time - Change - Stone"
    In this geoportal an exhibition on the geological history of North Saxony can be viewed. Outside there is a geo-adventure garden with a barefoot path , stone labyrinth and a tertiary forest that takes up the geological themes in the permanent exhibition.
  • Geoportal Museum Steinarbeiterhaus Hohburg
    In the half-timbered building from 1802, the way of life of the stone breakers as well as the history of the north-west Saxon way of life of the stone industry are presented in exhibitions. Outside, a functioning stone crushing plant, locomobile, a Lanz Bulldog and a nostalgic gas station can be viewed.
  • Geoportal
    Porphyry     House Rochlitzer Berg In the Porphyry House, visitors can find out more about Rochlitz porphyry tuff and take tips with them for excursions in the area. There are also lectures, workshops and creative offers.
  • Geoportal Erden der Keramik Grimma
    The geoportal is located in the "Schaddelmühle", an old watermill that houses a ceramic workshop. The geoportal offers ceramic art and other exhibitions, courses under professional supervision, a sculpture garden and a clay processing plant.
  • Geoportal Schmalspurbahnhof Mügeln (currently being implemented)
    In the narrow-gauge station Mügeln, once Europe's largest narrow-gauge station, information will be provided (from mid-2019) in an exhibition and on the outdoor area about the dismantling, transport and processing of kaolin.

The sights and visitor centers are accessible via (bike) hiking trails such as the “Stone Path” or the “Porphyry Educational Path” on the Rochlitzer Berg.

Cooperations and partners of the Geopark

The Geopark Porphyrland cooperates with the following partners:

Web links

Commons : GeoPark Porphyrland - Steinreich in Sachsen  - Collection of images, videos and audio files

Individual evidence

  1. ^ U. Hoffmann, C. Breitkreuz, K. Breiter, S. Sergeev, K. Stanek, M. Tichomirowa: Carboniferous-Permian volcanic evolution in Central Europe - U / Pb-ages of volcanic rocks in Saxony (Germany) and northern Bohemia (Czech Republic) . In: International Journal of Earth Sciences . tape 102 , 2013, OCLC 5659178835 , pp. 73-99 .
  2. ↑ C. Breitkreuz: The volcanic rocks and sub-volcanic rocks in the Geopark Porphyrland: A late Paleozoic super volcanic complex! In: V. Heß, J. Rascher, H. Zellmer (Eds.): Kultur.Wert.Stein. Responsibility and opportunities for Geoparks (=  publication number Dt. Ges. Geowiss . Volume 88 ). 2016, ISBN 978-3-510-49237-4 , pp. 67-72 .
  3. ↑ a b A. Repstock, C. Breitkreuz, M. Lapp, B. Schulz: Voluminous and crystal-rich igneous rocks of the Permian Wurzen volcanic system, northern Saxony, Germany: physical volcanology and geochemical characterization . In: International Journal of Earth Sciences . tape 107 , November 2017, DNB  1150861959 , p. 1485-1513 .
  4. ^ A b Gerhard Röllig: Contributions to the petrogenesis and volcanic tectonics of the pyroxen quartz porphyries of northwest Saxony . Ed .: Martin Luther University Halle. Halle (Saale) 1969.
  5. ↑ Frank Eigenfeld: On the geological development of volcanic rocks in the south and east of the NW Saxon volcanic complex . Dissertation. Martin Luther University Halle, Halle (Saale) 1978, DNB  810122553 .
  6. ↑ A. Krüger, W. Heidenfelder, V. Hess, J. Rascher: Saxony carries porphyry - geological features and geotouristic potentials of a planned geopark in the Muldenland. In: Series of publications of the German Society for Geosciences. (= SDGG ). Issue 76, May 2011, pp. 37–48.
  7. ↑ A. Krüger, V. Heß, H. Schilke, W. Heidenfelder, H. Anger: White gold from Saxony - kaolin deposits and their valuation in the Geopark Porphyry Land. In: SDGG. Issue 81, 2013, pp. 46–55.
  8. ↑ J. Rascher: Brown Coals. In: W. Pälchen (Ed.): Geology of Saxony II - georesources, geopotentials, geohazards. E. Schweizerbart'sche Verlagsbuchhandlung (Nägele & Obermiller), Stuttgart 2009, ISBN 978-3-510-65249-5 , pp. 24-51.
  9. ↑ L. Eißmann, T. Litt: The Quaternary Central Germany. A guide and excursion guide. With an overview of the pre-quaternary of the Saale-Elbe area. (= Altenbg. Nat. Scientific research volume 7). 1994, DNB 943754143 .
  10. ↑ L. Wolf, W. Alexowsky: Quaternary. In: W. Pälchen, H. Walther (ed.): Geology of Saxony. Stuttgart 2008, ISBN 978-3-510-65239-6 , pp. 419-462.
  11. ↑ J. Czoßek: Saxon marble - the "Porphyrtuff" from Rochlitz. In: The earth is popping! - Volcanoes in Saxony. Exhibition catalog. Museum der Westlausitz Kamenz, 2008, ISBN 978-3-910018-47-1 , pp. 11-21.
  12. ^ FW Junge, R. Baudenbacher: The geological development between the Erzgebirge, Saale and Elbe. In: Excursion Guide Central Germany. 2001, ISBN 3-14-160329-4 , pp. 189-199.
  13. ^ W. Heidenfelder, A. Krüger, A. Sagawe: The final touch: The importance of the glacial cuts in the Saxon Porphyry Geopark for the development of the inland ice theory and for regional geotourism . In: SDGG. Issue 79, 2012, pp. 20–31.
  14. ↑ Award: Kirchbruch Beucha becomes third national geotope in Geopark Porphyrland. geopark-porphyrland.de, online portal, September 10, 2019. Retrieved September 11, 2019 .
  15. ↑ Award: Kirchbruch Beucha becomes third national geotope in Geopark Porphyrland. geopark-porphyrland.de, online portal, September 10, 2019. Retrieved September 11, 2019 .
  16. ↑ Award: Kirchbruch Beucha becomes third national geotope in Geopark Porphyrland. geopark-porphyrland.de, online portal, September 10, 2019. Retrieved September 11, 2019 .