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Shapefile of processed results from surface x-ray florescence (XRF) analysis of sediment grab samples, Long Island Sound mapping project Phase II

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DataCite Commons2024-08-20 更新2025-04-16 收录
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https://www.marine-geo.org/doi/10.26022/IEDA/331233
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Sediment grab samples were taken in summer of 2017 and 2018 using a modified van Veen grab sampler. A sub-sample of the top two centimeters was taken for further lab analysis. Dried and homogenized splits of the samples were analyzed for chemical composition using an Innov-X Alpha series 4000 XRF (Innov-X Systems, Woburn, MA). The results of the measurements are presented as ppm. The XRF analytical protocol included the following elements: P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn As, Se, Br, Rb, Sr, Zr, Mo, Ag, Cd, Sn, Sb, I, Ba, Hg, Pb, Bi, Th, and U. However, only Cl, K, Ca, Ti, Cr, Mn, Fe, Co, Cu, Zn, As, Br, Rb, Sr, Zr and Pb were consistently present at levels above background detection in surficial sediments collected in the LIS Phase II area. The data is presented here as an ESRI shapefile. There is an accompanying Excel spreadsheet. Funding was provided by the Long Island Sound Mapping Fund administered cooperatively by the EPA Long Island Sound Study and the Connecticut Department of Energy and Environmental Protection (DEEP).

本数据集的沉积物抓斗采样工作于2017年和2018年夏季开展,采用改良型范维恩抓斗采样器(van Veen grab sampler)完成采样。采集沉积物表层2厘米的子样本,用于后续实验室分析。将样品经干燥、均质化处理后的分样,采用Innov-X Alpha系列4000型X射线荧光光谱仪(XRF,Innov-X系统公司,马萨诸塞州沃本市)开展化学成分分析,测试结果以百万分比(ppm)为单位呈现。本次XRF分析方案涵盖以下元素:磷(P)、硫(S)、氯(Cl)、钾(K)、钙(Ca)、钛(Ti)、钒(V)、铬(Cr)、锰(Mn)、铁(Fe)、钴(Co)、镍(Ni)、铜(Cu)、锌(Zn)、砷(As)、硒(Se)、溴(Br)、铷(Rb)、锶(Sr)、锆(Zr)、钼(Mo)、银(Ag)、镉(Cd)、锡(Sn)、锑(Sb)、碘(I)、钡(Ba)、汞(Hg)、铅(Pb)、铋(Bi)、钍(Th)以及铀(U)。但在长岛海湾(Long Island Sound, LIS)二期研究区域采集的表层沉积物中,仅氯(Cl)、钾(K)、钙(Ca)、钛(Ti)、铬(Cr)、锰(Mn)、铁(Fe)、钴(Co)、铜(Cu)、锌(Zn)、砷(As)、溴(Br)、铷(Rb)、锶(Sr)、锆(Zr)以及铅(Pb)的含量持续高于背景检出限。本数据集以ESRI形状文件(ESRI shapefile)格式提供,同时附带配套的Excel电子表格。本研究的资助资金由长岛海湾绘图基金提供,该基金由美国环境保护署(EPA)长岛海湾研究项目与康涅狄格州能源与环境保护部(DEEP)联合管理。
提供机构:
Interdisciplinary Earth Data Alliance (IEDA)
创建时间:
2023-01-07
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