当前位置: X-MOL 学术Geochronometria › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Estimation of the durations of breaks in deposition – speleothem case study
Geochronometria ( IF 1.2 ) Pub Date : 2020-12-31 , DOI: 10.2478/geochr-2020-0022
J. Pawlak 1 , H. Hercman 1 , P. Sierpień 1 , P. Pruner 2, 3 , M. Gąsiorowski 1 , A. Mihevc 3 , N. Zupan Hajna 3 , P. Bosák 2, 3 , M. Błaszczyk 1 , B. Wach 1
Affiliation  

Abstract Speleothems provide one of the most continuous terrestrial archives. However, due to changing conditions in temperature/humidity or the chemistry of percolating water, sedimentation breaks (hiatuses) and erosional events are possible and are commonly recorded in speleothems. Sedimentation breaks with durations longer than the resolution of the studied record should be considered in potential speleothem age-depth models. The most classic and reliable solution to the problem is the independent construction of age-depth models for the parts of speleothems separated by the hiatuses. However, in some cases, it is not possible to obtain a sufficient number of dating results for reliable age-depth model estimation. In such cases, the problem can be solved by the application of other sources of chronological information. Here, based on a few speleothem examples, an alternative approach – oxygen isotopic stratigraphy – is used to estimate the chronology for the parts of speleothems where there is not enough chronological information for classic age-depth models. As a result, the deposition break duration can be estimated.

中文翻译:

沉积中断持续时间的估计——洞穴案例研究

摘要 Speleothems 提供了最连续的陆地档案之一。然而,由于温度/湿度条件的变化或渗透水的化学性质,可能会发生沉积中断(间断)和侵蚀事件,并且通常记录在洞穴中。在潜在洞穴年龄深度模型中,应考虑持续时间长于研究记录分辨率的沉积中断。该问题最经典、最可靠的解决方案是独立构建被间断分隔的洞穴群的年龄深度模型。但是,在某些情况下,无法获得足够数量的测年结果以进行可靠的年龄深度模型估计。在这种情况下,可以通过应用其他时间信息源来解决问题。这里,根据一些洞穴的例子,另一种方法——氧同位素地层学——被用来估计洞穴中没有足够的经典年龄深度模型的年代信息的部分的年表。结果,可以估计沉积中断持续时间。
更新日期:2020-12-31
down
wechat
bug