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Austrian Wine in Depth > Austria's Geology & Characteristics of Rock > Flashcards

Austria's Geology & Characteristics of Rock Flashcards

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1
Q

True or False: The first two division of rocks are consolidated and unconsolidated rocks.

A

True

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2
Q

What are examples of consolidated rocks?

A

Leitha Limestone, Volcanic rocks, gravel

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3
Q

What are the units of time in order?

A 
Proterozoic (+541 million yrs. ago)
Palaeozoic (541-253 mill yrs. ago)
Mesozoic (253-66 mill yrs ago)
Cenozoic (66 mil yrs ago-present)
Neogene (2.6 mill years ago)
Pleistocene (10,000 years bf present)
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4
Q

The Moldanubian and Moravian Superunits are composed of?

A

consolidated rocks from Ancient mountain range (from +541 mill yr ago to 253 mil yr ago)

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5
Q

The Helvetic Superunit is composed of?

A

Marine deposits from 253-66 mill yrs ago

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6
Q

The Penninic Superunit is composed of?

A

Remnants of past ocean from 253-66 mil years ago

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7
Q

Thr Austroalpine Superunit is composed of?

A

Volcanic rocks & sediments from Palaeozoic (541-253m yr ago) and Mesozoic (253-66m yr ago)

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8
Q

Why is the Quartenary period important for wine regions?

A
  • Formation of valley, terrace hills, mountains (due to cold and warm phases that occurred)
  • responsible for the types of deposits found in the region (loess, loam)
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9
Q

What are the three major rock groups?

A

Igneous Rock-solidified from a melt
Metamorphic Rock-created due to varying pressure & temperature
Sedimentary Rocks-erosion of other rocks/organisms, water precipitates

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10
Q

What are the important rock properties for winegrowing?

A

structure/texture

mineral/chemical composition

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11
Q

What is the importance of structure/texture of rocks as it relates to wine?

A 
-impact on: 
weathering behavior
heating & root penetration of soil
air
temperature
water balance
transfer of nutrients
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12
Q

What are the main rock forming minerals?

A

Silicates, carbonates, phosphates, oxides, sulphides

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13
Q

What is the importance of the chemical/mineral composition of the rock as it relates to wine?

A

-determines:
supply of nutrients
choice materials & varieties

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Austrian Wine in Depth (38 decks)

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