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.

The picture shows Spitz, Wachau.
© Austrian Wine / Armin Faber

Landscape and Rocks

Austria’s landscape is significantly shaped by the country’s main geological features: the highlands of the Waldviertel and Mühlviertel regions that form part of the Bohemian Massif in the north, the undulating foothills of the Alps with huge valleys and basins in the east, and the Alps proper, whose mountains run side-to-side across the country, stretching more than 500 km.
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Schotter der Ur-Donau in Radlbrunn (Weinviertel)
© Austrian Wine/M. Heinrich 2012

The key geological units within the Austrian wine-growing regions

The Moldanubian and Moravian zones are deep sections of an ancient mountain range that began in central Europe, crossed the Iberian Peninsula and ended in the Appalachian Mountains in North America. The southern end of these two zones forms the Waldviertel region. The mountain range developed during the Variscan orogeny that took place on the southern edge of “Old Europe” some 360 to 300 million years ago. 
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© Austrian Wine / M. Heinrich 2008

The three main rock groups

From a geological point of view, there are three main rock groups: igneous rocks (magmatic rocks), which are either intrusive (plutonic rocks) or extrusive (volcanic rocks), sedimentary rocks; and metamorphic rocks.
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Spitz, Wachau, Niederösterreich
© Austrian Wine / Armin Faber

Rock Composition

Minerals are the building blocks of rocks. Most rocks are composed of several different minerals, e.g. granite, which contains feldspar, quartz and mica. Few rocks consist largely of only one mineral, although this is the case of limestone (composed of calcite) and quartzite (composed of 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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