Some Notes on Dense Structures Present in Archaeological Plant Remains: X-ray Fluorescence Computed Tomography Applications
Some Notes on Dense Structures Present in Archaeological Plant Remains: X-ray Fluorescence Computed Tomography Applications
复制标题
DOI：
10.3390/min12091130
复制
发表时间：
2022-09
期刊：
影响因子：
2.5
通讯作者：
C. M. Calo;M. Rizzutto;C. Pérez;Rogério Machado;Caue Ferreira;N. F. Aguero;Laura P. Furquim;E. Neves;Francisco A. Pugliese
中科院分区：
文献类型：
--
作者：
C. M. Calo;M. Rizzutto;C. Pérez;Rogério Machado;Caue Ferreira;N. F. Aguero;Laura P. Furquim;E. Neves;Francisco A. Pugliese
本研究描述了在Monte卡斯泰洛（6000-700 cal. AP-SW亚马逊）发现的未烧焦的植物遗迹中存在的致密体或结构的组成和来源。从软组织矿化过程的角度，揭示了该植物遗骸自最初存款以来（至少）200多年来与该遗址沉积基质的相互作用。使用XFCT、X射线MicroCT和SEM-EDS技术检查两个试样，以揭示Ca、K、Mn、Fe、Ti、Si、S、Cu、Br、Rb、Sr、Zn和Zr的存在和分布。这些属性与沉积基底的成分ED-XRF和XRD测量数据相结合。结果表明，一些化学元素存在于固体和解剖结构的植物遗骸指的是沉积环境，而其他人有内源性来源。这些主要包括Rb和Br，它们被解释为主要存在于内部组织中的降解过程的结果。除Sr和Zr外，其余元素都有一部分从沉积基底进入并分散到样品结构中。其存在可归因于诸如通过最外层组织的附着、扩散和浸渍等机制，它们大多集中在最外层组织中。大部分致密体的成分由内源和外源两种元素组成。
This study describes the composition and provenance of dense bodies or structures present in uncharred plant vestiges recovered at Monte Castelo (6000–700 cal. AP-SW Amazonia). It aimed to disclose some aspects of this plant remains’ interactions with the sedimentary matrix of the site over the 200 years (at least) since its initial deposit, from the point of view of the soft tissue mineralization processes. Two specimens were examined using XFCT, X-ray MicroCT, and SEM-EDS techniques to reveal the presence and distribution of Ca, K, Mn, Fe, Ti, Si, S, Cu, Br, Rb, Sr, Zn, and Zr. These attributes were integrated with compositional ED-XRF and XRD measured data from the sedimentary substrate. Results show that some of the chemical elements present in solid bodies and anatomical structures of the plant remains refer to the sedimentary environment, while others have an endogenous origin. These include mainly Rb and Br, which were interpreted as the result of degradation processes of the internal tissues, where they are mainly present. Except Sr and Zr, a portion of all the other elements entered and disperse into the sample structures from the sedimentary substrate. Its presence is attributable to mechanisms such as attachment, diffusion and impregnation through the outermost tissues, where they are mostly concentrated. The composition of most of the dense bodies consists of both endogenous and exogenous elements.