| 项目编号: | 1725762
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| 项目名称: | EAR-PF: Testing the boundaries of Burgess Shale-Type preservation with literature meta-analysis, decay experimentation, and fossil investigation |
| 作者: | Evan Anderson
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| 承担单位: | Anderson Evan P
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| 批准年: | 2017
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| 开始日期: | 2017-10-01
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| 结束日期: | 2019-09-30
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| 资助金额: | 174000
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| 资助来源: | US-NSF
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| 项目类别: | Fellowship
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | soft-bodied
; bst preservation
; soft-bodied fossil
; soft-bodied preservation
; exceptional soft-bodied fossil deposit
; fossil preservation
; fossil-based investigation
; earth history
; fossil preservational mineralogy
; decay experiment
; literature meta-analysis
; ear postdoctoral fellowship
; decay organism
; fossil record
; burgess shale-type
; important preservation mode
; research plan
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| 英文摘要: | Dr. Evan Anderson has been granted an EAR Postdoctoral Fellowship to carry out research and education plans at the University of Missouri. The research plan will focus on studying the Burgess Shale-type (BST) mode of soft-bodied preservation from multiple approaches to better understand the scope and operational mechanisms of this paleontologically important preservation mode. Soft-bodied fossils can provide ecological and evolutionary information available nowhere else in the fossil record. The education activities will include developing teaching modules for K12 and undergraduate students. The materials for these modules will include common softbodied materials (i.e. graptolites and plant debris), 3-D printed and traditional print-outs of exceptional soft-bodied materials, and materials collected for this study.
This investigation will have three components. First, a literature meta-analysis will study and expand a compendium of exceptional soft-bodied fossil deposits (or lagerstätten) to isolate BST and BST-like deposits throughout earth history. Comparing these deposits will both highlight shared characteristics and explore the variation within the BST mode of fossilization. Second, decay experiments will test two models of BST preservation for their effectiveness in slowing soft-bodied degradation. One experiment will test the hypothesis that complex bioturbation prevents BST preservation by oxygenating sediments and enhancing decay by simulating different kinds of burrows penetrating the sediment in which a decay organism is buried. The second experiment will test the hypothesis that elevated calcium and alkalinity levels allows for the development of calcite permeability seals in BST deposits, protecting buried organisms from degradation. Finally, a fossil-based investigation will compare the burial context and fossil preservation of freshly collected material from the BST-like Winneshiek and Waukesha lagerstätten to traditional open marine BST deposits from the Cambrian House Range of Utah. Although the BST-like deposits come from post-Cambrian deposits with restricted water circulation, if the fossil preservational mineralogies and qualities are similar between the BST-like and BST deposits, then their burial environment conditions should be comparable (i.e. calcite seals). |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/88715
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Evan Anderson. EAR-PF: Testing the boundaries of Burgess Shale-Type preservation with literature meta-analysis, decay experimentation, and fossil investigation. 2017-01-01.
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