Age-depth models provide essential temporal frameworks in paleoenvironmental science. We use a sample of 80 recently-published age-depth models to comment on current practices in building and reporting radiocarbon-based age-depth models. We address options for model building, sampling strategies, dating densities, and best practices for reporting age-depth models and associated data. Our review reveals incomplete reporting of 14C ages, model-building methods, age-depth models and associated meta-data in many recent studies. All information needed to evaluate, reproduce and update an age-depth model should accompany every published model. We also present a case study of building age-depth models for a lake sediment core that has both 14C ages and an independent varve chronology. The case study illustrates that choosing the ‘best model’ is not a simple task, and that model accuracy is ultimately controlled by differences between 14C ages and true age that likely occur in many late Quaternary records.

中文翻译：

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构建和报告年龄深度模型的当前实践

年龄深度模型为古环境科学提供了重要的时间框架。我们使用最近发布的 80 个年龄深度模型的样本来评论当前构建和报告基于放射性碳的年龄深度模型的做法。我们讨论了模型构建、抽样策略、约会密度以及报告年龄深度模型和相关数据的最佳实践的选项。我们的审查揭示了不完整的报告14最近许多研究中的 C 年龄、模型构建方法、年龄深度模型和相关元数据。评估、复制和更新年龄深度模型所需的所有信息都应随附每个已发布的模型。我们还提供了一个为湖泊沉积岩心建立年龄深度模型的案例研究，该模型具有14C年龄和独立的varve年表。案例研究表明，选择“最佳模型”并不是一项简单的任务，模型的准确性最终取决于两者之间的差异。14许多晚第四纪记录中可能出现的 C 年龄和真实年龄。