Mississippian Bowland Shale dataset: from Hind Clough, Marl Hill 4 (MHD4) and Cominco S9 (Craven Basin, UK). Iron Speciation, total organic carbon and selected major and trace element geochemical data (NERC grant NE/L002493/1)

This dataset was acquired as part of a NERC-funded Doctoral Training Partnership (DTP) PhD Studentship at the University of Leicester and British Geological Survey between 2014-2018 [grant no. NE/L002493/1] (see also Emmings, 2018 unpublished PhD thesis). This research was conducted within the Central England NERC Training Alliance (CENTA) consortium. This dataset accompanies a manuscript titled "Late Palaeozoic Phytoplankton Blackout: A 100 Myr Record of Enhanced Primary Productivity". Co-authors and co-workers were: Joseph F. Emmings (University of Leicester, British Geological Survey); Sarah J. Davies (University of Leicester); Simon W. Poulton (University of Leeds); Michael H. Stephenson (British Geological Survey); Gawen R. T. Jenkin (University of Leicester); Christopher H. Vane (British Geological Survey); Melanie J. Leng (British Geological Survey, University of Nottingham) and Vicky Moss-Hayes (British Geological Survey). Nick Riley (Carboniferous Ltd) is thanked for sharing biostratigraphic expertise and assistance. Nick Marsh and Tom Knott are thanked for providing assistance during geochemical analyses. This dataset contains the following data (in Microsoft Excel format). 1) Fe species abundance data measured at the University of Leeds using the sequential extraction method of Poulton and Canfield (2005) and pyrite S extraction method of Canfield et al., (1986); 2) Total Fe, Si, Mn and Al major element concentrations (measured using x-ray fluorescence at the University of Leicester; XRF); 3) Total organic carbon (TOC) and inorganic C (MINC) data measured via Rock-Eval pyrolysis at the British Geological Survey; 4) Cu, Mo and U trace element concentration data (measured via XRF at the University of Leicester) and enrichment factors relative to Post-Archaean Average Shale (PAAS; Taylor and McLennan, 1985). Analyses were coupled on 99 sample powders from three positions in the Craven Basin and spanning ammonoid biozones P2c-d to E1c1. See also http://dx.doi.org/10.5285/9ceadcad-a93c-4bab-8ca1-07b0de2c5ed0 for additional sedimentological and geochemical data from Hind Clough, MHD4 and Cominco S9. These data were also interpreted together with 20 drill-core samples previously acquired from Hind Clough (‘HC01’ prefix). See http://dx.doi.org/10.5285/c39a32b2-1a30-4426-8389-2fae21ec60ad for further information regarding this drill-core dataset. References: Emmings, J. 2018. Controls on UK Lower Namurian Shale Gas Prospectivity: Understanding the Spatial and Temporal Distribution of Organic Matter in Siliciclastic Mudstones. Unpublished PhD Thesis. University of Leicester. Poulton, S. W. & Canfield, D. E. 2005. Development of a sequential extraction procedure for iron: implications for iron partitioning in continentally derived particulates. Chemical Geology 214, 209-221, doi:http://dx.doi.org/10.1016/j.chemgeo.2004.09.003. Canfield D., Raiswell R., Westrich J., Reaves CM, Berner RA. 1986. The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales. Chemical Geology, 54(1): 149-155. Taylor S, McLennan S. 1985. The Continental Crust: Its Composition and Evolution. Blackwell Scientific: London.

本数据集系由英国环境、食品和乡村事务部（NERC）资助的莱斯特大学与英国地质调查局之间的博士研究生培养计划（DTP）博士奖学金项目（2014-2018年[项目编号：NE/L002493/1]）所获得，并见于Emmings（2018年）未发表的博士论文（参见Emmings, 2018年未发表的博士论文）。该研究在英格兰中部NERC培训联盟（CENTA）联合体中开展。本数据集与题为《晚古生代浮游植物黑障：100百万年增强初级生产力的记录》的论文相辅相成。共同作者及合作者包括：Joseph F. Emmings（莱斯特大学，英国地质调查局）、Sarah J. Davies（莱斯特大学）、Simon W. Poulton（利兹大学）、Michael H. Stephenson（英国地质调查局）、Gawen R. T. Jenkin（莱斯特大学）、Christopher H. Vane（英国地质调查局）、Melanie J. Leng（英国地质调查局，诺丁汉大学）以及Vicky Moss-Hayes（英国地质调查局）。Carboniferous Ltd公司Nick Riley因分享生物地层学专长及协助而受到感谢。Nick Marsh和Tom Knott因在地球化学分析期间提供协助而表示感谢。本数据集包含以下数据（以Microsoft Excel格式）：1）利用Poulton和Canfield（2005年）的连续提取方法及Canfield等（1986年）的黄铁矿S提取方法在利兹大学测量的Fe物种丰度数据；2）使用X射线荧光光谱在莱斯特大学测量的Fe、Si、Mn和Al等主要元素浓度；3）通过英国地质调查局的Rock-Eval热解法测量的总有机碳（TOC）及无机碳（MINC）数据；4）使用X射线荧光光谱在莱斯特大学测量的Cu、Mo和U微量元素浓度数据以及相对于后太古代平均页岩（PAAS；Taylor和McLennan，1985年）的富集因子。分析数据来自克劳文盆地三个位置的99个样品粉末，覆盖了从P2c-d到E1c1的菊石生物地层。此外，还可以参考http://dx.doi.org/10.5285/9ceadcad-a93c-4bab-8ca1-07b0de2c5ed0获取关于Hind Clough、MHD4和Cominco S9的补充沉积学和地球化学数据。这些数据还与之前从Hind Clough获得的20个岩心样品（前缀为‘HC01’）一起进行了综合解释。更多关于该岩心数据集的信息，请参阅http://dx.doi.org/10.5285/c39a32b2-1a30-4426-8389-2fae21ec60ad。参考文献：Emmings, J. 2018. 英国下那慕尔尼亚页岩气勘探潜力的控制因素：理解硅质粘土岩中有机物空间和时间的分布。莱斯特大学未发表的博士论文。Poulton, S. W. & Canfield, D. E. 2005. 铁的连续提取程序的开发：对大陆沉积物中铁分配的影响。化学地质学214，209-221，doi：http://dx.doi.org/10.1016/j.chemgeo.2004.09.003。Canfield D., Raiswell R., Westrich J., Reaves CM, Berner RA. 1986. 在沉积物和页岩中分析还原无机硫时使用铬还原法。化学地质学，54（1）：149-155。Taylor S, McLennan S. 1985. 大陆地壳：其成分与演化。Blackwell科学出版社：伦敦。