Geochemical and mineralogical data for soils of the conterminous United States

土壤水分 采样(信号处理) 地质学 土壤测量 地平线 土工试验 地质调查 土层 矿物学 环境科学 土壤科学 地球化学 计算机科学 滤波器(信号处理) 物理 计算机视觉 古生物学 天文
作者
Bruce Smith,William F. Cannon,Laurel G. Woodruff,Federico Solano,J.E. Kilburn,D.L. Fey
出处
期刊:Data series [United States Geological Survey]
被引量:80
标识
DOI:10.3133/ds801
摘要

In 2007, the U.S. Geological Survey initiated a low-density (1 site per 1,600 square kilometers, 4,857 sites) geochemical and mineralogical survey of soils of the conterminous United States as part of the North American Soil Geochemical Landscapes Project. Sampling and analytical protocols were developed at a workshop in 2003, and pilot studies were conducted from 2004 to 2007 to test and refine these recommended protocols. The final sampling protocol for the national-scale survey included, at each site, a sample from a depth of 0 to 5 centimeters, a composite of the soil A horizon, and a deeper sample from the soil C horizon or, if the top of the C horizon was at a depth greater than 1 meter, from a depth of approximately 80–100 centimeters. The <2-millimeter fraction of each sample was analyzed for a suite of 45 major and trace elements by methods that yield the total or near-total elemental content. The major mineralogical components in the samples from the soil A and C horizons were determined by a quantitative X-ray diffraction method using Rietveld refinement. Sampling in the conterminous United States was completed in 2010, with chemical and mineralogical analyses completed in May 2013. The resulting dataset provides an estimate of the abundance and spatial distribution of chemical elements and minerals in soils of the conterminous United States and represents a baseline for soil geochemistry and mineralogy against which future changes may be recognized and quantified. This report (1) describes the sampling, sample preparation, and analytical methods used; (2) gives details of the quality control protocols used to monitor the quality of chemical and mineralogical analyses over approximately six years; and (3) makes available the soil geochemical and mineralogical data in downloadable tables.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
平凡中的限量版完成签到,获得积分10
刚刚
大伟完成签到,获得积分10
刚刚
long关注了科研通微信公众号
1秒前
懵懂的毛豆完成签到,获得积分10
1秒前
zzcherished发布了新的文献求助10
1秒前
zyq发布了新的文献求助10
1秒前
我是老大应助哦哦哦采纳,获得10
2秒前
YHY完成签到,获得积分10
2秒前
2秒前
天天呼的海角完成签到,获得积分10
5秒前
量子星尘发布了新的文献求助10
8秒前
8秒前
8秒前
jiangcai完成签到,获得积分10
9秒前
Cherry完成签到,获得积分10
11秒前
正能量的可可可完成签到,获得积分10
11秒前
tuo zhang发布了新的文献求助10
14秒前
草莓养乐多完成签到 ,获得积分10
14秒前
糊涂完成签到,获得积分10
14秒前
哦哦哦发布了新的文献求助10
14秒前
in完成签到 ,获得积分10
15秒前
pilot完成签到,获得积分10
17秒前
劣根完成签到,获得积分10
18秒前
Liang发布了新的文献求助20
18秒前
20秒前
21秒前
曾小莹完成签到,获得积分10
21秒前
苏信怜完成签到,获得积分10
22秒前
25秒前
大气灵枫发布了新的文献求助10
25秒前
nn发布了新的文献求助10
26秒前
tuo zhang完成签到,获得积分10
28秒前
务实的绝悟完成签到,获得积分10
28秒前
怡然问晴发布了新的文献求助10
30秒前
开拖拉机的医学僧完成签到 ,获得积分10
31秒前
体贴凌柏发布了新的文献求助10
32秒前
Kinn完成签到,获得积分10
33秒前
33秒前
华仔应助枕星采纳,获得10
33秒前
Perry应助科研通管家采纳,获得30
34秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038303
求助须知:如何正确求助?哪些是违规求助? 3576013
关于积分的说明 11374210
捐赠科研通 3305780
什么是DOI,文献DOI怎么找? 1819322
邀请新用户注册赠送积分活动 892672
科研通“疑难数据库(出版商)”最低求助积分说明 815029