Evaluating global paleoshoreline models for the Cretaceous and Cenozoic

This data collection is associated with the publication: Heine, C., Yeo, L. G., & Müller, R. D. (2015). Evaluating global paleoshoreline models for the Cretaceous and Cenozoic. Australian Journal of Earth Sciences, 1-13. doi: 10.1080/08120099.2015.1018321Publication AbstractPaleoshoreline maps represent the distribution of land and sea through geological time. These compilations provide excellent proxies for evaluating the contributions non-tectonic vertical crustal motions, such as mantle convection-driven dynamic topography, to the flooding histories of continental platforms. Until now, such data have not been available as a globally coherent compilation. Here, we present and evaluate a set of Cretaceous and Cenozoic global shoreline data extracted from two independent published global paleogeographic atlases. We evaluate computed flooding extents derived from the global paleoshoreline models with paleo-environment interpretations from fossils and geological outcrops and compare flooding trends with published eustatic sea-level curves. Although the implied global flooding histories of the two models are similar in the Cenozoic, they differ more substantially in the Cretaceous. This increase in consistency between paleoshoreline maps with the fossil record from the Cretaceous to the Cenozoic likely reflects the increase in the fossil preservation potential in younger geological times. Comparisons between the two models and the Paleogeographic Atlas of Australia on a regional scale in Australia reveal a higher consistency with fossil data for one model over the others in the mid-Cretaceous and suggest that a review of the interpretation of the Late Cretaceous–Cenozoic paleogeography may be necessary. The paleoshoreline maps and associated paleobiology data constraining marine vs terrestrial environments are provided freely as reconstructable GPlates-compatible digital files and form a basis for evaluating the output of geodynamic models predicting regional dynamic surface topography.Authors and InstitutionsChristian Heine - EarthByte Research Group, School of Geosciences, The University of Sydney, AustraliaLogan G. Yeo - EarthByte Research Group, School of Geosciences, The University of Sydney, AustraliaR. Dietmar Müller - EarthByte Research Group, School of Geosciences, The University of Sydney, Australia. ORCID: 0000-0002-3334-5764Overview of Resources ContainedA digital compilation of global paleoshorelines from the Golonka (2007, 2009) and Smith et al. (1994) paleogeographic models. These data are available in ESRI Shapefile and GPlates GPML formats, and can be interacted with using the plate reconstruction software GPlates (www.gplates.org), as well as ArcGIS and QGIS. [References: Golonka, J. (2007). Phanerozoic paleoenvironment and paleolithofacies maps: Mesozoic. Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie, Vol. 33: 2, 211-264; Golonka , J. (2009). Phanerozoic paleoenvironment and paleolithofacies maps: Cenozoic. Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie, Vol. 35: 4, 507-587; Smith A., Smith D. G. & Furnell B. M. (1994). Atlas of Mesozoic and Cenozoic coastlines, Cambridge University Press, Cambridge, United Kingdom, 112 p]

本数据集关联的发表文献为：Heine, C., Yeo, L. G., & Müller, R. D. (2015). Evaluating global paleoshoreline models for the Cretaceous and Cenozoic. 澳大利亚地球科学杂志, 1-13. doi: 10.1080/08120099.2015.1018321

论文摘要
古海岸线（paleoshoreline）图件代表了地质历史时期的海陆分布格局。此类汇编数据集可为评估非构造性垂直地壳运动（如地幔对流驱动的动态地形）对大陆陆台淹没历史的贡献提供优质替代指标。迄今为止，尚无全球统一协调的此类公开数据集问世。本文基于两套独立发表的全球古地理图集，提取并构建了一套白垩纪（Cretaceous）与新生代（Cenozoic）全球海岸线数据集，并对其开展系统性评估。我们利用古生物化石与地质露头的古环境解释结果，对基于全球古海岸线模型计算得到的淹没范围进行验证，并将淹没趋势与已发表的全球海平面变化曲线进行对比。尽管两套模型所揭示的新生代全球淹没历史较为相似，但在白垩纪时期二者的差异更为显著。古海岸线图件与化石记录的契合度从白垩纪到新生代逐步提升，这大概率反映了较年轻地质时代中化石保存潜力的提升。在澳大利亚区域尺度上，将两套模型与《澳大利亚古地理图集》进行对比后发现，其中一套模型在中白垩世时期与化石数据的匹配度更高，这表明或许有必要对晚白垩世-新生代的古地理解释进行重新审视。本数据集免费提供可重建且兼容GPlates的数字文件，其中包含古海岸线图件以及约束海洋与陆地环境的古生物数据，可为评估预测区域动态地表地形的地球动力学模型结果提供研究基础。

作者与机构
Christian Heine — 澳大利亚悉尼大学地球科学学院EarthByte研究组
Logan G. Yeo — 澳大利亚悉尼大学地球科学学院EarthByte研究组
R. Dietmar Müller — 澳大利亚悉尼大学地球科学学院EarthByte研究组。ORCID: 0000-0002-3334-5764

数据集资源概览
本数据集为基于Golonka（2007、2009）以及Smith等人（1994）的古地理模型构建的全球古海岸线数字汇编。数据以ESRI Shapefile与GPlates GPML格式提供，可通过板块重建软件GPlates（www.gplates.org）、ArcGIS以及QGIS进行交互操作。
[参考文献：
Golonka, J. (2007). Phanerozoic paleoenvironment and paleolithofacies maps: Mesozoic. Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie, Vol. 33: 2, 211-264；
Golonka, J. (2009). Phanerozoic paleoenvironment and paleolithofacies maps: Cenozoic. Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie, Vol. 35: 4, 507-587；
Smith A., Smith D. G. & Furnell B. M. (1994). Atlas of Mesozoic and Cenozoic coastlines, Cambridge University Press, Cambridge, United Kingdom, 112 p]