Steep slopes, valleys, rolling hills, terraces and specific sites of the Austrian wine regions are features that belong to the visible charm of our country’s landscapes. Hidden beneath the soils the rocks usually are not visible, but they are of great importance to the winemakers because they influence significantly the choice of grape variety and vineyard management.

The rocks that form the source material for soils, but also our present-day landscape and climate, are products of the development of the history of the Earth. Geological research is focused on these aspects and the practical implications arising from these studies have raised the general awareness of geology, also within the wine community. The rocks determine how deep the roots of the vine can penetrate to find water, whether the soil is stony, sandy or loamy, whether the colour tends to be lighter or darker, whether it has the capacity to retain heat, air and water, whether clay minerals are present that facilitate the exchange of inorganic nutrients and whether the soil is inherently carbonate or lime-free.

A Picture shows the geological Map of Austria
© Geological Survey of Austria

Vineyards instead of ocean bays

The varying hardness of rocks, the course of tectonic boundaries as well as large-scale uplift and subsidence processes affect the landscape of the wine growing areas and, due to their respective altitude, orientation and slope, influence also the relief of the soils and consequently, the local climate of the vineyards. These factors and Austria’s location within the northern wine-growing belt of the Earth are the result of plate tectonic motion of the Earth’s crust, and related changes in the position of oceans and continents. This motion has also given rise to mountain ranges and is the reason why the lowlands in the east of the country are no longer occupied by seas but instead are areas displaying diverse cultural landscapes.

Since the major rock units essentially traverse Austria lengthwise, while the wine-growing regions trace an arc in the east of the country, the latter consequently include occurrences of almost all the main geological units. This is why our wine landscapes are so varied, unique and interesting!

Unconsolidated or consolidated, that is the question

About 70 percent of our domestic vineyards are located upon unconsolidated rock substrates while approximately 30 percent are sited upon soils that developed from consolidated rocks. Both groups comprise very different rocks, which are separated on the basis of the structure and composition of their chemical and mineralogical constituents. Included among the consolidated rocks are acidic granites, gneisses, schists and quartzites, basic amphibolites, serpentinites and basalts, and also marbles and limestone, conglomerates, sandstones and volcanic tuffs. Predominant among the unconsolidated rocks are first and foremost calcareous loess, sandy gravels and rock debris derived from river terraces as well as sandy and clayey silts, the remnants of a large lake landscape that formed in the wake of the retreat of the sea about 11 million years ago.

Das Bild Zeigt eine Terrasse in der Wachau
© Austrian Wine / Gregor Semrad

The Austrian Wine Marketing Board thanks Dr. Maria Heinrich, Head of the Department of Mineral Resources of the Geological Survey of Austria, for her contribution “Overview of the Geology of Austria and important characteristics of the rocks”.

Further Literature

HARZHAUSER, M., DAXNER-HÖCK, G., KOLLMANN , H., KOVAR-EDER, J., RÖGL, F., SCHULTZ, O. & SUMMESBERGER, H.: 100 Schritte Erdgeschichte. Die Geschichte der Erde und des Lebens im Naturhistorischen Museum in Wien. – Naturhistorisches Museum Wien, Wien, 2004.

MURAWSKI, H. & MEYER, W.: Geologisches Wörterbuch. – 12. Aufl., Springer Spektrum, Berlin-Heidelberg, 2010.

Geologie von Österreich - kurz und bunt. – Geol. B.-A., Wien, 2013.

VINX, R.: Gesteinsbestimmung im Gelände. – 3. Aufl., Spektrum Akademischer Verlag Springer-Verlag, Berlin-Heidelberg, 2011.

WILSON, J.E.: Terroir The Role of Geology, Climate, and Culture in the Making of French Wines. – Octopus Publishing Group Ltd., Univ. of California Press, Los Angeles – London, 1998.

Spitz, Wachau, Niederösterreich
© Austrian Wine / Armin Faber

Landscape and Rocks

The scenic landscape of Austria has been significantly shaped by the main geological units: the highlands of the Waldviertel and Mühlviertel regions form part of the Bohemian Massif in the north, followed by the undulating hilly Alpine Foreland with great valleys and basins in the east, and finally the mountainous Alps, which extend for over 500 km lengthwise across the country.
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Schotter der Ur-Donau in Radlbrunn (Weinviertel)
© Austrian Wine/M. Heinrich 2012

The main geological units

The Moldanubian and Moravian Superunits are deep portions of an ancient mountain range, which extended from central Europe over the Iberian Peninsula to the Appalachian Mountains in North America. The southern end of these two units forms the Waldviertel region. The mountain range developed during the so-called Variscan Orogeny before 360 to 300 million years ago on the southern margin of ‘Old Europe’.  
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© Austrian Wine / M. Heinrich 2008

The three major rock groups

There are three superordinate groups of rock differentiated by geology: solidification rocks or igneous rocks occur as intrusive rocks (plutonic rocks) or as extrusive rocks (volcanic rocks), deposits or sedimentary rocks, alteration or metamorphic rocks.
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Spitz, Wachau, Niederösterreich
© Austrian Wine / Armin Faber

Composition of the rocks

Minerals are the building blocks of rocks. Most rocks are formed of several minerals such as granite with feldspar, quartz and mica. Few rocks consist largely of only one mineral, such as limestone with calcite or quartzite with quartz.
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© Austrian Wine / Armin Faber

Geology of the winegrowing regions

Geology of the winegrowing regions Niederösterreich, Burgenland, Steiermark, Wien and the rest of Austria.
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