Controls on carbonate preservation: implications for the skeletal record and the carbon cycle

骨架碳酸盐是我们古生物信息的主要来源，也是碳从大气-海洋转移到岩石圈的主要途径。因此，控制化石的保存和保真度的过程(即埋藏学)对于解释化石记录和碳循环至关重要。我的研究量化了从个体环境到纬度的不同尺度上的挖掘过程和潜在的保存偏差，重点放在作为全球元素交换和人类影响的主要地点的沿海环境。在过去的15年里，从热带、温带和现在的极地收集了样本和数据，以形成这些纬度比较的基础。作为拟议研究的一部分，将扩大北极关键环境(环境迅速变化和冰川冲刷的地点)的初步死亡集合，并辅之以实验。此外，将通过金星海底观测站系统获得时间序列实验数据，以便更密切地跟踪攻丝过程的性质和偶然性。

Skeletal carbonate is our primary source of paleo-biological information, and the primary means by which carbon is transferred from the atmosphere-ocean to the lithosphere. As such, processes which control its preservation and fidelity (i.e. taphonomy) are of primary importance to interpreting the fossil record and the carbon cycle. My research quantifies taphonomic processes and potential preservation biases at scales ranging from within individual environments to across latitudes, with a focus on coastal settings as the main locus of global elemental exchange and anthropogenic impact. Over the past 15 years samples and data from tropical, temperate, and now polar locations have been collected to form the foundation for these latitudinal comparisons. As part of the proposed research, preliminary death assemblages from the key Arctic setting (site of rapid environmental change and ice-scouring) will be expanded and complimented with experiments. Also, time-series experimental data will be obtained through the VENUS sub-sea observatory system in order to more closely track the nature and episodicity of taphonomic processes.