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Author | Topic: Undecayed Lake-Bed Vegetation Remains | |||||||||||||||||
lpetrich Inactive Member |
"Undecayed" is an overstatement, I'm sure, but I once made this interesting observation in my childhood:
I remember swimming in some lake, and dredging up some leaves with my feet. They were black, but otherwise they looked as if they had just fallen from their trees. Has anyone observed anything similar? I think that this is relevant to the question of polystrate trees. They could have been drowned and then gradually buried by different sediments, lasting the whole time because they decay too slowly. And why the slow decay? Decay is easier with oxygen; aerobic metabolism can release over 10 times as much energy as anaerobic metabolism. And lake-bottom decay microbes can easily consume most of the oxygen in their habitat, limiting how much decay they can perform.
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John Inactive Member |
quote: I grew up near a lake that was created in 1969 or so by damming a river. You can still see dead trees standing near the banks. [This message has been edited by John, 01-30-2003]
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Bill Birkeland Member (Idle past 1284 days) Posts: 165 From: Louisiana Joined: |
lpetrich stated:
""Undecayed" is an overstatement, I'm sure, but I I remember swimming in some lake, and dredging up some Has anyone observed anything similar?" Similar observations were noted by Glenn Morton posted http://www.asa3.org/archive/evolution/199801/0176.html In the article, Glen Morton Stated: "As to leaves, I would suggest looking at Robert A. Cores taken from the lake show several layers of leaf Core DF1 has leaves in the sediment from .6 -.9 m Other cores shown in Figure 44 show other buried and More information can be found at: http://www.glenn.morton.btinternet.co.uk/fossilization.htm Reference Cited: Spicer, R. A., 1981, “The Sorting and Deposition of When paleontologists and geologists collect cores http://www.ngdc.noaa.gov/paleo/parcs/chapter3.html http://www.ngdc.noaa.gov/paleo/plantmacros.html In fact, radiocarbon calibration has been done from Goslar, T., Arnold, M., Tisnerat, L. M., Hatte, C., and 2. Scientific Report 1995-1997 PE-04. A 45.000 YEAR http://www.cio.phys.rug.nl/HTML-docs/Verslag/97/PE-04.htm They stated: "From the laminated sediments we selected Kitagawa, H., and van der Plicht, J., 1998. Atmospheric http://ijolite.geology.uiuc.edu/02FallClass/geo433/papers/14C_%20production.pdf. Mr. lpetrich continued: "I think that this is relevant to the question of Polystrate trees have been found buried in sediments http://www.lgs.lsu.edu/geopubs.htm Mr. lpetrich continued: And why the slow decay? Decay is easier with The preservation of wood in water saturated sediments Similar remains of wooden ships have been found all The abstract for Fuller (1992) stated: "In August of 1989 a dugout canoe was discovered The abstract for Fuller (1992) further stated: "When recovered the canoe was found to be entirely The sediments filling this canoe contained abundant The above examples demonstrate that the burial and References Cited; Fuller, R. S., 1992, Archaeological Recovery and Analysis Pearson, C. E., Guevin, B. L., and Saltus, A. R., 1991, Perkins, S., 1998, Freshwater Finds: Inland Waters Yield Even more examples of wooden shipwrecks preserved by non- http://www.glenn.morton.btinternet.co.uk/fossilization.htm Also, the Young Earth creationist overlook whole Some references about the Mt. Hood forests are: Lawrence, D. B., and Lawrence, E. G., 1959, Cameron, K. A., and Pringle, P. T., 1987, A Detailed Cameron, K. A., and Pringle, P. T., 1991, Prehistoric Forests of polystrate trees are also buried in Holocene Karowe, A. L., and Jefferson, T. H., 1987, Burial Yours, Bill Birkeland
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lpetrich Inactive Member |
Thanx, Bill Birkeland.
It would seem that almost-undecayed leaves and branches are common in lake bottoms. BTW, that leaf-carpeted lake I had visited was a lake in the mountains near central Pennsylvania.
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peter borger Member (Idle past 6418 days) Posts: 965 From: australia Joined: |
Dear Ipe,
Just for your -and the boards- information: In some places of the world fossil timber refuse to turn to stone and remains in the condition it was buried. I guess the most famous place is the Tarkin Wilderness in Tasmania. A ten meter meter high wall of used-to-be-forest material is alleged to be deposited there 35 My ago. The laeves and branches are in uncomprehensible perfect state and look like they were burries last year/decade. Best wishes,
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peter borger Member (Idle past 6418 days) Posts: 965 From: australia Joined: |
Dear Ipe,
Just for your -and the boards- information: In some places of the world fossil timber refuse to turn to stone and remains in the condition it was buried. I guess the most famous place is the Tarkin Wilderness in Tasmania. A ten meter meter high wall of used-to-be-forest material is alleged to be deposited there 35 My ago. The laeves and branches are in uncomprehensible perfect state and look like they were burried last year/decade. Best wishes,
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