Dendrochronology

Created by: LF18
Created on: 09-04-22 10:52

In which type of climate do thick rings represent humid summers?

Dry climates

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In which type of climate do thick rings represent warm summers?

Cool climates

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An example of an incremental dating technique, based on annual incremental growth - in this case "cones" of wood added, which in a cross-section through a tree-trunk look like a barcode of thick and thin annual layers

Dendrochronology

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The science that uses tree rings to study present climate and reconstruct past climate

Dendroclimatology

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What are long, cross-matched series where the tree ring signature is linked to a living tree.

Master chronology

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A technique that ensures each individual tree ring is assigned its exact year of formation. This is achieved by matching patterns of wide and narrow rings between cores from the same tree, and between trees from different locations.

Cross-dating

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When a tree ring signature is not linked to a living tree.

Floating chronology

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How long the master chronology of the Bristlecone Pine (SW USA)

8681 years

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How long is the master chronology of the Irish oak?

7272 years

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What method can be used to date individual rings?

AMS dating

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What can be converted to temperature or precipitation indices using transfer functions based on growth/climate relationships known from living trees

Ring widths

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What is inversely related to the strength of the "solar wind" and not constant?

Cosmic ray flux

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Dating of individual tree-rings from master chronologies allows radiocarbon "age" to be compared to what timescale?

Calendrical timescale

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Radiocarbon dating measurements produce ages in "radiocarbon years" which must be converted to calendar ages by this process. This process is needed because the atmospheric 14C/12C ratio, which is a key element in calculating radiocarbon ages, has not bee

Radiocarbon calibration

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Other cards in this set

Card 2

Front

In which type of climate do thick rings represent warm summers?

Back

Cool climates

Card 3

Front

Back

Card 4

Front

The science that uses tree rings to study present climate and reconstruct past climate

Back

Card 5

Front

What are long, cross-matched series where the tree ring signature is linked to a living tree.

Back

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Dendrochronology