Dendrochronology

Dendrochronology is the scientific method of dating the age of trees by the number of rings that they have grown. Young Earth creationists are not fans of it, because dendrochronology often finds that certain trees are older than the young Earth is supposed to be.

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Creationism
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Clearly defined tree rings.

Methodology

Trees continually grow outward during their lifespan by surrounding the central, live section with dead cells, or bark. However, trees grow faster in summer and slower in winter, causing 'tree rings' of different growth rates to form. A tree's age can be dated to within one year by "counting" the number of these rings that a tree possesses.[1]

However, just counting the rings may lead to an inaccurate result, because of seasonal variations in ring growth and malformations. Instead, dendrochronologists determine the qualities of each ring and determine whether other local trees possess the same qualities in the same ring in a process called "skeleton plotting".[2][3] If the tree rings between different trees formed in a similar way, then it's likely that those trees have undergone the same variation at the same time. In addition to allowing more certain proof of a tree's age, it allows dendrochronologists to link together a part of the life of one tree to part of the life of another tree and make an effective "chain" of tree lives.

Creationism and dendrochronology

Young Earth creationists often doubt other forms of dating, such as radiometric dating, that invalidate their worldview of a 6,000-year-old Earth, often because those dating methods are harder to understand, more prone to potential error, and science-y. Dendrochronology, on the other hand, can be done by anyone, and feels less science-y. If a tree is proven to be older than about 4,350 years, then it is impossible for that tree to have survived the global flood, which in turn proves biblical literalism and creationism false. (Until creationists say that God protected this singular tree for no apparent reason reasons we cannot comprehend, which is a perfectly acceptable response which also proves that creationism is religion, not a science.)

Many tree records have been constructed that extend beyond 4,350 years old.[4] The oldest unbroken string of tree ring records go back 11,750 years,[5] while the oldest living tree is 5063 years old.[6] Both of these dates contradict young Earth creationism.

Trees contradicting the global flood

Currently unnamed

Currently unnamed is 5070 years old (720 too many),[6][7] and is the oldest known living tree dated by dendrochronology.

Prometheus

PrometheusFile:Wikipedia's W.svg is 4901 years old (551 too many).[6] Prometheus was cut down in 1964, and its age is adjusted as if it had continued living.

Methuselah

MethuselahFile:Wikipedia's W.svg is 4852 years old (502 too many).[6][8]

King Clone

King CloneFile:Wikipedia's W.svg, a creosote bush ring, is approximately 11,700 years old.[9][10][11][12] King Clone was dated by Frank Vasek and Leonel Sternberg using two methods: First, the number of rings in the plant and by calculating the annual annual growth, and second by radiocarbon dating the wood of the centermost portion of the plant.

Old Tjikko

Old TjikkoFile:Wikipedia's W.svg is approximately 9,550 years old.[13][14] Old Tjikko was dated using carbon-14 dating, which certainly shows us that Old Tjikko is too old for young earth creationism but is inaccurate to the year.

Llangernyw Yew

The Llangernyw YewFile:Wikipedia's W.svg is approximately 4,000-5,000 years old.[15][16] Unfortunately, yews are notably difficult to date, and this one has weathered worse than most, which makes this weak evidence.

Jomon Sugi

Jōmon SugiFile:Wikipedia's W.svg is 2100-7000 years old.

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gollark: ```192.168.1.148 dev enp0s31f6 lladdr 90:8d:6c:1f:0f:fd STALE192.168.1.1 dev enp0s31f6 lladdr a4:08:f5:7d:a3:d3 REACHABLE192.168.1.179 dev enp0s31f6 lladdr 00:4c:74:86:00:2f STALE2a00:23c7:5415:d300:adf8:5e75:241f:8e7d dev enp0s31f6 lladdr 00:4c:74:86:00:2f STALEfe80::7c31:e6f9:7182:4856 dev enp0s31f6 lladdr 00:4c:74:86:00:2f STALEfe80::22bb:223:5b9:1efd dev enp0s31f6 lladdr a0:b3:cc:ea:e3:8b REACHABLEfe80::a608:f5ff:fe7d:a3d3 dev enp0s31f6 lladdr a4:08:f5:7d:a3:d3 router REACHABLE2a00:23c7:5415:d300:6209:a461:6fb4:931d dev enp0s31f6 lladdr a0:b3:cc:ea:e3:8b REACHABLE```
gollark: `ip neigh show`, right?
gollark: It says it wants a "prefix", which I assume means `ff00::/8` and stuff, but it also says nothing about that.
gollark: No idea. `ip r list ff02::aeae` doesn't say anything at all about it, but that is also the case for some *working* addresses on the LAN.

See also

References
  1. http://www.livescience.com/32443-why-are-tree-rings-lighter-or-darker.html
  2. "About Tree Rings".
  3. "Principles of Dendrochronology".
  4. http://ltrr.arizona.edu/aegean
  5. Isaak, Mark (2004). "Claim CG010". TalkOrigins. Retrieved 2015-01-26.
  6. Rocky Mountain Tree-Ring Research
  7. http://www.livescience.com/29152-oldest-tree-in-world.html
  8. http://www.conifers.org/pi/Pinus_longaeva.php
  9. "Creosote Bush".
  10. "E611: The King Clone Creosote Bush (11,700 years old) is only about 7,500 years old."
  11. "From animals to plants: Creosote bush may be oldest living organism on Earth."
  12. http://www.lucernevalley.net/creosote/index.htm
  13. "World’s oldest living tree discovered in Sweden".
  14. http://news.nationalgeographic.com/news/2008/04/080414-oldest-tree_2.html
  15. "The Church of St Digain and The Ancient Yew Tree."
  16. http://www.hort.cornell.edu/uhi/treetour/yew.html
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