洞穴产生的伪obreccia对化石度的保存的影响
Marcin Machalski1, Piotr Duda2
1Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland. mach@twarda.pan.pl.
Scientific reports
|August 14, 2024
概括
挖掘的不连续性表面,或伪obreccia,复杂的化石记录的解释. 这项研究揭示了掘如何在白纪-古纪边界事件期间准备了晚期马斯特里希特纪化石.
科学领域:
- 古生物学的古生物学
- 沉积物学的沉积物学
- 这种技术是什么?
背景情况:
- 有化石度的不连续性表面标志着海洋沉积物记录中的断裂.
- 挖掘的不连续性表面,称为伪obreccia,可以掩盖化石签名和地层学解释.
- 纪-古纪的边界是研究生物转移和沉积物记录的关键间隔.
研究的目的:
- 为了研究洞穴产生的伪obreccia对hiatal化石度的影响.
- 在白纪 - 旧世的边界记录 pseudobreccia 解剖学和化石沉积物关系.
- 了解影响伪obreccia内的化石保存的 ichno-taphonomic 过程.
主要方法:
- 三维X射线计算机断层扫描 (CT) 成像用于分析伪obreccia.
- 详细检查了 Pseudobreccia 区域内的化石组合.
- 在波兰的白纪-旧世边界区间的平流图和沉积物学分析.
主要成果:
- 伪obreccia形成涉及一个新的 ichno-taphonomic 过程的地下化石准备的挖掘者.
- 在 Pseudobreccia. 中发现了一种独特的马斯特里希特晚期化石组合.
- 这项研究为挖掘,沉积物改变和化石保存之间的复杂相互作用提供了洞察力.
结论:
- 识别 pseudobreccia 对于准确解释沉积物记录至关重要,特别是在重大生物事件期间.
- 了解 pseudobreccia 形成可以增强我们对化石保存和语法学过程的了解.
- 这项研究为解释海洋沉积物记录中的断层和化石度提供了新的视角.
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