علم تحديد أعمار الأشجار: الفرق بين النسختين
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[[Image:Dendrochronological drill hg.jpg|thumb|240px| |
[[Image:Dendrochronological drill hg.jpg|thumb|240px|الحفر في جذع شجرة للحصول على عينات لتحديد عمرها عن طريق عد الحلقات]] |
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[[Image:tree.ring.arp.jpg|thumb|240px| |
[[Image:tree.ring.arp.jpg|thumb|240px|حلقات نمو شجرة من حديقة حيوان بريستول في إنكلترا. كل حلقة تمثل عاماً من عمر الشجرة، الحلقات الخارجية هي الأصغر عمراً.]] |
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'''Dendrochronology''' (from {{lang|grc|[[wiktionary:δένδρον|δένδρον]]}}, ''dendron'', "tree limb"; {{lang|grc|[[wiktionary:χρόνος|χρόνος]]}}, ''khronos'', "time"; and {{lang|grc|[[wiktionary:-λογία|-λογία]]}}, ''[[wiktionary:-logia|-logia]]'') or '''tree-ring dating''' is the scientific method of dating based on the analysis of patterns of '''tree rings''', also known as '''growth rings'''. Dendrochronology can date the time at which tree rings were formed, in many types of wood, to the exact calendar year. This has three main areas of application: [[paleoecology]], where it is used to determine certain aspects of past [[ecology|ecologies]] (most prominently climate); [[archaeology]], where it is used to date old buildings, etc.; and [[radiocarbon dating]], where it is used to calibrate radiocarbon ages (see below). |
'''Dendrochronology''' (from {{lang|grc|[[wiktionary:δένδρον|δένδρον]]}}, ''dendron'', "tree limb"; {{lang|grc|[[wiktionary:χρόνος|χρόνος]]}}, ''khronos'', "time"; and {{lang|grc|[[wiktionary:-λογία|-λογία]]}}, ''[[wiktionary:-logia|-logia]]'') or '''tree-ring dating''' is the scientific method of dating based on the analysis of patterns of '''tree rings''', also known as '''growth rings'''. Dendrochronology can date the time at which tree rings were formed, in many types of wood, to the exact calendar year. This has three main areas of application: [[paleoecology]], where it is used to determine certain aspects of past [[ecology|ecologies]] (most prominently climate); [[archaeology]], where it is used to date old buildings, etc.; and [[radiocarbon dating]], where it is used to calibrate radiocarbon ages (see below). |
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نسخة 08:58، 8 أغسطس 2013
Dendrochronology (from δένδρον, dendron, "tree limb"; χρόνος, khronos, "time"; and -λογία, -logia) or tree-ring dating is the scientific method of dating based on the analysis of patterns of tree rings, also known as growth rings. Dendrochronology can date the time at which tree rings were formed, in many types of wood, to the exact calendar year. This has three main areas of application: paleoecology, where it is used to determine certain aspects of past ecologies (most prominently climate); archaeology, where it is used to date old buildings, etc.; and radiocarbon dating, where it is used to calibrate radiocarbon ages (see below).
In some areas of the world, it is possible to date wood back a few thousand years, or even many thousands. Currently, the maximum for fully anchored chronologies is a little over 11,000 years from present.[1]
طالع أيضاً
- Acanthochronology
- Baumkuchen, cake that resembles growth rings
- Dendroarchaeology
- Dendroclimatology
- علم الشجر
- Herbchronology
- علم المناخ القديم
- Post excavation
- Sclerochronology
- Timeline of dendrochronology timestamp events
- Varve
المراجع
- ^ McGovern PJ؛ وآخرون (1995). "Science in Archaeology: A Review". AJA. ج. 99 ع. 1: 79–142.
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