A revised Holocene coral sea-level database from the Florida reef tract, USA
A revised Holocene coral sea-level database from the Florida reef tract, USA
复制标题
美国佛罗里达珊瑚礁区修订后的全新世珊瑚海平面数据库
作者：
A. Stathakopoulos;B. Riegl;L. Toth
佛罗里达南部地区的珊瑚礁和红树林生境由于其广阔的地理范围和海平面跟踪生物群的组成，长期以来一直被用于西大西洋的海平面研究。多年来，该地区的数据已被用于支持几个非常不同的全新世海平面重建（SLR）。然而，其中许多SLR没有纳入所有可用的珊瑚数据，部分原因是缺乏纳入海平面数据库所需的详细特征。在这里，我们提出了一个更新的数据库，其中包括303个珊瑚样本，这些样本来自我们第一次广泛表征的已发表来源。通过对数据库中每一个有日期的样本的视觉埋藏特征进行评价和排序，对数据进行了仔细筛选，结果确定了134个高质量的珊瑚样本，可考虑作为适当的海平面指标。我们表明，我们的数据库在很大程度上同意最近的SLR南佛罗里达在过去的107000年，然而，全新世早期仍然很差的特点，因为很少有高质量的数据跨越这一时期。完善未来的全新世SLR在该地区提供的建议，包括填补空间和时间的珊瑚样本，特别是从全新世早期的数据差距，以及构建一个更强大的泥炭数据库，以更好地约束海平面变化在全新世中后期。我们的数据库和埋藏学排名协议提供了一个框架，研究人员根据海平面模型的鲁棒性来评估数据选择标准。
The coral reefs and mangrove habitats of the south Florida region have long been used in sea-level studies for the western Atlantic because of their broad geographic extent and composition of sea-level tracking biota. The data from this region have been used to support several very different Holocene sea-level reconstructions (SLRs) over the years. However, many of these SLRs did not incorporate all available coral-based data, in part because detailed characterizations necessary for inclusion into sea-level databases were lacking. Here, we present an updated database comprised of 303 coral samples from published sources that we extensively characterized for the first time. The data were carefully screened by evaluating and ranking the visual taphonomic characteristics of every dated sample within the database, which resulted in the identification of 134 high-quality coral samples for consideration as suitable sea-level indicators. We show that our database largely agrees with the most recent SLR for south Florida over the last ∼7,000 years; however, the early Holocene remains poorly characterized because there are few high-quality data spanning this period. Suggestions to refine future Holocene SLRs in the region are provided including filling spatial and temporal data gaps of coral samples, particularly from the early Holocene, as well as constructing a more robust peat database to better constrain sea-level variability during the middle to late Holocene. Our database and taphonomic-ranking protocol provide a framework for researchers to evaluate data-selection criteria depending on the robustness of their sea-level models.
影响因子：
4
作者：
Ashe, Erica L.;Cahill, Niamh;Kopp, Robert E.
通讯作者：
Kopp, Robert E.