AndreaBozzo/ceres-open-data-index huggingface dataset:
The oxygen fugacity of core segregation and the redox evolution of the mantle: constraints from iron and chromium isotopes (NERC grant NE/F014295/2)

This project is aimed at understanding what kind of conditions the Earth's core formed under and how this affected the amount of oxygen present in the rocky interior of the Earth. It uses experiments which simulate the very high pressures and temperatures that would have been present in the Earth's interior when the core formed, combined with very precise chemical analyses of these experiments. From these results I will learn how certain chemical elements distributed themselves between the metal core and the rocky outer part of the Earth, and whether this distribution behaviour changes with different conditions and with the amount of oxygen present. By comparing the results I get from the experiments with the chemical compositions of rocks from the Earth and very primitive meteorites we will be able to understand better how the Earth's core formed, and how this may have affected the chemistry of our planet and the development of its atmosphere and oceans. Four papers are linked to this grant: Stable chromium isotopic composition of meteorites and metal-silicate experiments: Implications for fractionation during core formation Unlocking the zinc isotope systematics of iron meteorites Iron isotope tracing of mantle heterogeneity within the source regions of oceanic basalts Isotopic evidence for internal oxidation of the Earth's mantle during accretion

Tags: Chromium isotopes, Earth core, Earth mantle, Iron meteorites, Isotopes, Meteorites, NERC_DDC, Oxidation, Peridotite, Perovskite, Pyroxenite, Silicates, Stable isotopes, Zinc isotopes
Organization: British Geological Survey (BGS)
Phosphate and phosphite adsorption data on ferrihydrite precipitates

The data show the efficiency of phosphate and phosphite adsorption onto ferrihydrite precipitates that were generated in artificial seawater solutions in the laboratory. The experiments were carried out at pH 7 and pH 8. Solution compositions are provided along with the P data.

Tags: Absorption, NERC_DDC, Phosphates
Organization: British Geological Survey (BGS)
UKCCSRC Call 1 project paper: Enhanced operating flexibility and optimised off-design operation of coal plants with post-combustion capture

The inherent nature of electricity necessitates a permanent balance between generation and demand in electricity systems. This has obvious implications for the operation of CCS power plants in decarbonised electricity systems with inflexible nuclear and variable renewable supply. The low variable costs of nuclear and some intermittent renewable technology allow them to run as base-load generators and shift fossil fuel plants from base-load to midmerit plants. CCS power plants can be expected to increasingly operate in ways to balance variations, sometimes simultaneously, in the production of some intermittent renewable technologies and variations in electricity demand, resulting in more frequent ramping and start/stop cycles. As a result, they may also operate over a wide output range to maintain the quality and security of electricity supply by providing ancillary services, e.g. capacity and energy reserve, to the electricity network. This work characterises the operating envelope, the performance and the corresponding compressed CO2 flow of coal power plants for a range of loads, with or without voluntary by-pass of the capture unit. Optimised part-load operating strategies provide novel insights into the additional capabilities of CCS power plants specifically designed for enhanced operating flexibility. The paper is available at http://www.sciencedirect.com/science/article/pii/S1876610214026010, DOI: doi:10.1016/j.egypro.2014.11.786.

Tags: NERC_DDC
Organization: British Geological Survey (BGS)
UKCCSRC Call 1 project paper: Operational flexibility options in power plants 1 with integrated post-combustion capture

Flexibility in power plants with amine based carbon dioxide (CO2) capture is identified in the literature as a way of improving power plant revenues. Despite the prior art, the value of flexibility in power plants with CO2 capture as a way to improve power plant revenues is still unclear. Most studies are based on simplifying assumptions about the capabilities of power plants to operate at part load and to regenerate additional solvent after interim storage of solvent. This work addresses this gap by examining the operational flexibility of coal power plants with amine based CO2 capture, using a rigorous fully integrated model. The part-load performance, with capture and compression bypass, and with interim solvent storage with delayed regeneration, of two coal power plant configurations designed for base load operation with capture, and with the ability to fully bypass capture, is reported. With advanced integration options, including boiler sliding pressure control, uncontrolled steam extraction with a floating crossover pressure, constant stripper pressure operation and compressor inlet guide vanes, a significant reduction of the electricity output penalty at 50% fuel input is observed, from 458 kWh/tCO2 to 345 kWh/tCO2, compared to a reduction from 361 to 342 kWh/tCO2 at 100% fuel input. Advanced integration options for improved part-load allow for maximum additional solvent regeneration, although to a lower magnitude than conventional integration options. The latter can maintain CO2 flow export within 10% of maximum flow across 30% to 78% of MCR (Maximum continuous rating). One hour of interim solvent storage at 100% MCR is evaluated to be optimally regenerated in 4 hrs at 55%MCR, and 3 hours at 30% MCR, providing rigorously validated useful guidelines for the increasing number of techno-economic studies on power plant flexibility, and CO2 flow profiles for further studies on integrated CO2 networks. The paper is available at http://www.sciencedirect.com/science/article/pii/S1750583616300275, DOI: doi:10.1016/j.ijggc.2016.01.027.

Tags: Carbon capture and storage, NERC_DDC
Organization: British Geological Survey (BGS)
UKCCSRC Call 2 project paper: A synthetic-dynamic method for water solubility measurements in high pressure CO2 using ATRFTIR spectroscopy

A new synthetic method for studying phase behaviour is described using Attenuated Total Reflection (ATR) spectroscopy. The method has been developed to provide relevant information on the solubility of water in CO2. The dew point of water has been determined at three different pressures, viz. (4.05, 5.05 and 6.03) MPa with mole fractions of water between 0.01 and 0.04. The data obtained fill the gap in the literature in these regions of pressures and temperatures and could be of high importance in the context of Carbon Capture and Storage (CCS) technology. Indeed, the presence of water in the captured CO2 could damage the pipeline used for CO2 transport. Hence, it is very important to have a fully understanding of the behaviour of the (CO2 + H2O) mixtures in wide range of temperature relevant for CCS. The paper is available at http://www.sciencedirect.com/science/article/pii/S0021961415003547, DOI: 10.1016/j.jct.2015.09.024. UKCCSRC Grant UKCCSRC-C2-185.

Tags: NERC_DDC
Organization: British Geological Survey (BGS)
UKCCSRC Call 1 project report: Chemical looping for low cost oxygen production and other applications. Part II (restricted)

Imperial College has modelled and designed from first principles a counter-flow thermal oxygen reactor using CuO (MnO) based particles as an oxygen carrier, for replacing the burner in conventional coal fire power plant. The length of the reactor depends on the required falling distance for CuO particles to heat up and complete the decomposition. Initial calculations indicated that this was higher than hoped (500 mm). The design is being optimised. A prototype burner has been built and tested according to the design. After intense tests and some modifications on the prototype, we managed to show some encouraging results as a proof of concept. It is demonstrated that under the current design, there is strong evidence that the particles exhibited sufficiently fast kinetics to release the required oxygen to support complete combustion of propane fuel in an initially sub-stoichiometric flame. The results have led to the construction of a second version of the burner, with improved designed, and a more powerful surface mixed burner capable of much higher heat duty than the current one. The new version of the burner will be tested during the next few months. Part II of the report is restricted and not available for download.

Tags: NERC_DDC
Organization: British Geological Survey (BGS)
UKCCSRC Call 1 project report: Chemical looping for low-cost oxygen and other applications. Part I (open access)

There were a number of aims of this project - to develop initial flowsheets and designs for CLC with oxygen uncoupling; to model and design reactors; and to produce and test a variety of novel materials for CLC with oxygen uncoupling. The project has succeeded in a number of aims; to develop and test materials (Cambridge), to conduct an initial test of CLC with oxygen uncoupling (the first at scale in the UK, conducted at Cranfield, and the major stated aim of the project - see Figure 2-13), and to model and develop a novel reactor for CLC with oxygen uncoupling (Imperial). Overall, these aspects exceeded the initial project brief. Initial time-dependent flowsheets were developed at Cambridge for CLC processes - unfortunately key staff loss led to a significant hiatus in the activity. Industrial reviewing was limited because of the challenges in developing the flowsheeting activity.

Tags: NERC_DDC
Organization: British Geological Survey (BGS)
Rhenium-osmium abundance and isotope data obtained for the Nakatengu Creek

Rhenium-osmium abundance and isotope data obtained for the Nakatengu Creek Section, Japan. Sample collection August 2021 principally funded by NSF-NERC award. The approximately 2000 m stratigraphically thick Cretaceous section mainly comprises organic bearing siltstone, siliceous mudstone, sandstone and interbedded tuff horizons.

Tags: Analysis, Isotopes, NERC_DDC, Rhenium
Organization: British Geological Survey (BGS)
Laser scan data of Ediacaran fossils sites from Newfoundland Canada

This dataset contains laser scan data of Ediacaran fossils from Mistaken Point Ecological Reserve and Discovery Geopark, Newfoundland, Canada and from casts of Ediacaran fossil surfaces housed in the Sedgwick Museum, University of Cambridge, UK. These data were collected across two weeks in August 2024 using a Faro Quantum Scan Arm with a v6 laser-line probe. The data comes from 2 sites in Mistaken Point: D surface has 32 scans, 11.5GB and Gully G surface with 38 scans, 145Gb. There was data from 5 surfaces in the Discovery Geopark: CT7 had 9 scans, 28.3Gb, Mel15 had 7 scans of 11.5GB, Sandy Point had 13 scans of 42Gb and from casts there were 33 scans of MUN surface (110Gb) and 36 scans of H5 (115GB). These data will be used to reconstruct the community ecology using spatial point process analyses and Bayesian network inference. This data set is part of an project to understand the eco-evolutionary dynamics of early animal communities.

Tags: Evolution, Fossils, NERC_DDC, Palaeontology
Organization: British Geological Survey (BGS)
Middle Miocene terrestrial climate reconstructions

Middle Miocene terrestrial climate reconstructions from fossil plant remains. 197 sites are reconstructed from across the globe. These are presented with latitude-longitude co-ordinates (both modern and palaeo), published minimum and maximum ages of each site and a 1/0 column to denote those sites relating to the mid Miocene climatic optimum. Reconstructed variables are: bio1 (mean annual temperature in °C), bio8 (mean temperature of the wettest quarter in °C), bio10 (mean temperature of the warmest quarter in °C), bio11 (mean temperature of the coldest quarter in °C), bio12 (mean annual precipitation in mm), bio14 (Precipitation of Driest Month in mm), bio17 (Precipitation of Driest Quarter in mm), bio18 (Precipitation of Warmest Quarter in mm) and bio19 (Precipitation of coldest Quarter in mm). bios are presented as an optima with 0.5 and 0.95 uncertainty

Tags: Climatology, Fossils, Miocene, NERC_DDC
Organization: British Geological Survey (BGS)
MyCeno (Mycology of the Cenozoic) Cenozoic fossil fungi records

3484 Cenozoic fossil fungi records from published data. Files are: MyCeno_records.csv = records of fossil fungi; MyCeno_citations.csv = citations for fossil fungi record sources. (‘Citation_IDs’ are linked to ‘Source_of_record_IDs’ and ‘Supporting_literature_IDs’ in the records table); Myceno_column_info.csv = information about columns in the records table.

Tags: Cenozoic, Fossils, Fungi, NERC_DDC
Organization: British Geological Survey (BGS)
UKCCSRC Call 2 project report: Advanced Sorbent via Controlled Sintering of Natural Ca-sorbent for Carbon Capture

In this study, two strategies, thermal pretreatment and chemical doping, were investigated as a method of improving the residual carrying capacity of Longcliffe and Havelock limestone for calcium looping systems. Four parameters were varied during thermal pretreatment: temperature (900-1100 degrees C), time (3-12 hr), gas composition (0-100 % CO2 balanced in N2) and particle size (90-355 micrometre). After pre-calcination, the sorbents were subjected to 20 carbonation-calcination cycles performed in a thermographic analyser (TGA) to monitor any signs of sorbent improvement. The degradation of sorbent activity was modelled using the decay equation suggested by Grasa and Abanades (2006). Both Longcliffe and Havelock samples showed self-reactivation when pretreated under CO2, however this did not result in a greater carrying capacity after 20 carbonation/calcination cycles compared to the untreated limestone. For chemical doping, Longcliffe doped using 0.167 mol % HBr via quantitative wet impregnation method resulted in an increase in residual carrying capacity of 27.4 % after thermal pre-treatment under CO2 when compared to the untreated but doped limestone, assuming self-reactivation continued as modelled. When Longcliffe was doped and then pretreated under pure N2, the limestone showed self-reactivation, which was not seen in the undoped sorbent when also pretreated under N2. Thus, the success of pretreatment may be dependent on the chemical composition of the limestone. Finally, BET surface area and BJH pore volume analysis was used to understand the changes in the sorbents' morphologies. The closure of the mesopores (dpore<150 nm) after the pretreatment was correlated to the self-reactivation in the subsequent cycles.

Tags: Carbon capture and storage, NERC_DDC
Organization: British Geological Survey (BGS)
EU Project Report: Final SACS 1 Report - Saline Aquifer CO2 Storage : a demonstration project at the Sleipner Field. Work area 1 (geology)

Final SACS 1 Report - Saline Aquifer CO2 Storage : a demonstration project at the Sleipner Field. Work area 1 (geology). The report can be downloaded from http://nora.nerc.ac.uk/512807/.

Tags: Carbon capture and storage, NERC_DDC
Organization: British Geological Survey (BGS)
Sampling Survey 2015/3_Minimound 2015/15 Belgica: Bay of Biscay (29/May/2015 to 07/Jun/2015)

This marine sampling survey 2015/3_MINIMOUND Belgica 2015/15, took place from 29/5/2015 to 7/6/2015 in the Bay of Biscay aboard Research Vessel Belgica. The survey was carried out by the British Geological Survey (BGS), Ghent University and Plymouth University as part of the FWO MINIMOUND project. Seabed samples were collected using British Geological Survey 6m vibrocorer. This archive contains acquisition data as supplied. This is a collaborative survey with Ghent University, Plymouth University and British Geological Survey as part of FWO MINIMOUND project. The aim of the survey was assessment of environmental drivers and anthropogenic impact using cold-water coral mini-mounds as analogue for giant mound growth. The cores will be archived by University of Ghent. Technical details of the survey are contained in RV Belgica Cruise 2015/15 report.

Organization: British Geological Survey (BGS)
Sampling Survey 2014/5_MINIMOUND Belgica Cruise 2014/16: Bay of Biscay (13/Jun/2014 to 23/Jun/2014)

This marine sampling survey 2014/5_MINIMOUND Belgica 2014/16, took place from 13/6/2014 to 23/6/2014 in the Bay of Biscay aboard Research Vessel Belgica. The survey was carried out by the British Geological Survey (BGS), Ghent University and Plymouth University as part of the FWO MINIMOUND project. Seabed samples were collected using British Geological Survey 6m vibrocorer. This archive contains acquisition data as supplied. This is a collaborative survey with Ghent University, Plymouth University and British Geological Survey as part of FWO MINIMOUND project. The aim of the survey was assessment of environmental drivers and anthropogenic impact using cold-water coral mini-mounds as analogue for giant mound growth. The cores will be archived by University of Ghent. Technical details of the survey are contained in RV Belgica Cruise 2014/16 report.

Organization: British Geological Survey (BGS)
Spatial and temporal datasets for mixing of fluids in a dyke-like (slot) geometry investigated using low-temperature laboratory experiments

These spatial and temporal image datasets are of mixing fluids in a dyke-like (slot) geometry investigated using low-temperature laboratory experiments which are described in the paper Analogue experiments to investigate magma mixing within dykes (Havard et al., in review in Bulletin of Volcanology, January 2025). The experiments are low-temperature analogue models of magma mixing within dykes and are dynamically scaled to the natural system. Seven unique experiments using seven different miscible fluid pairs, representing two magmas of differing composition, were conducted at the University of Liverpool. The miscible fluid pairs were (and the shortened experiment name is): water and diluted glycerol (ExpW1); water and pure glycerol (ExpW2); water and glycerol mixed with golden syrup (ExpW3); water and pure golden syrup (ExpW4); diluted glycerol and pure glycerol (ExpD1); pure glycerol and diluted golden syrup (ExpG1); pure glycerol and pure golden syrup (ExpG2). The experiment setup consisted of the lower density fluid placed above the higher density fluid in the tank apparatus, then the tank was inverted to initiate the interaction between the fluids. The raw data is a temporal series of photographs (JPGs) collected over the course of each experiment located within the subdirectories “Raw”. The raw data is processed using the scripts accompanying the dataset to show how density and mixing evolves spatially and temporally within the slot. Further details are available in the directory metadata file.

Tags: Density, Dykes, Image analysis, Low temperature tests, Magma, NERC_DDC
Organization: British Geological Survey (BGS)
Department for Environment, Food and Rural Affairs (DEFRA) MCZ: Skerries Bank and Surrounds: Multibeam, Benthic Sampling and Video survey SKBS_CEND0114: Western English Channel (22/01/2014 to 26/01/2014)

Multibeam (bathymetry and backscatter), underwater video and camera stills and grabs acquired via Hamon Grab gathered onboard Cefas Endeavour in January 2014. These data are archived with the Marine Environmental Data and Information Network (MEDIN) Data Archive Centres (DACs) including the British Geological Survey (BGS) DAC for geology and geophysics, The Archive for Marine Species and Habitats Data (DASSH) and the United Kingdom Hydrographic Office (UKHO) bathymetry DAC. The full site data package including raw is also available on request from BGS.

Organization: British Geological Survey (BGS)
Department for Environment, Food and Rural Affairs (DEFRA) MCZ: South West Deeps (West): Multibeam, Benthic Sampling and Video survey SWDW_CEND0613: (08/05/2013 to 28/05/2013)

Ground truthing (GT) survey to provide data which would be used in conjunction with the existing multibeam echosounder (MBES) acoustic data (bathymetry and backscatter) to determine the presence and extent of broad scale habitats (BSH) and Habitat FOCI present within the SWDW rMCZ. A. These data are archived with the Marine Environmental Data and Information Network (MEDIN) Data Archive Centres (DACs) including the British Geological Survey (BGS) DAC for geology and geophysics, The Archive for Marine Species and Habitats Data (DASSH) and the United Kingdom Hydrographic Office (UKHO) bathymetry DAC. The full site data package including raw is also available on request from BGS.

Organization: British Geological Survey (BGS)
Agri-Food and Biosciences Institute (AFBI) MCZ: South Rigg: Multibeam, Benthic Sampling and Video survey SRIG_afbi: Irish Sea (09/02/2012 to 21/02/2012)

These data Multibeam (bathymetry and backscatter), grab sampling (PSA), are archived with the Marine Environmental Data and Information Network (MEDIN) Data Archive Centres (DACs) including the British Geological Survey (BGS) DAC for geology and geophysics, The Archive for Marine Species and Habitats Data (DASSH) and the United Kingdom Hydrographic Office (UKHO) bathymetry DAC. The full site data package including raw is also available on request from BGS.

Organization: British Geological Survey (BGS)
Rhenium-osmium abundance and isotope data obtained for the Nakatengu Creek and Soashibetsu-gawa OAE1a Sections, Hokkaido, Japan, and the Sauzeries OAE1a Section, France.

Rhenium-osmium abundance and isotope data synopsis obtained for the Nakatengu Creek and Soashibetsu-gawa OAE1a (oceanic anoxic event 1a) Sections, Hokkaido, Japan, and the Sauzeries OAE1a Section, France. Sample collection August 2021 principally funded by NSF-NERC award. For the Nakatengu Creek and Soashibetsu-gawa sections approximately 2000 m stratigraphically thick Cretaceous section mainly comprises organic bearing siltstone, siliceous mudstone, sandstone and interbedded tuff horizons. The Re-Os data is published in Youjuan Li et al. ,Radioisotopic chronology of Ocean Anoxic Event 1a: Framework for analysis of driving mechanisms.Sci. Adv.10,eadn8365(2024).DOI:10.1126/sciadv.adn8365 For the Sauzeries OAE1a section, a 20 m interval comprises interbedded marl-dominated, marl-limestone and fine grained clays. This data is currently not published

Tags: Analysis, Isotopes, NERC_DDC, Rhenium
Organization: British Geological Survey (BGS)
2024, Ithaca Energy (UK) Ltd, Tornado Field and Proposed Pipeline Route, Site Survey, DECC Reference Number GS_1783

An oil and gas industry geophysical, geotechnical, environmental, pipeline/cable route, infield site survey acquired between June and September 2024. The block numbers traversed were 204/13, 204/14d, 205/5a.

Organization: British Geological Survey (BGS)
2024, BP Exploration, NEP Expansion Survey BC37/BC39, Site Survey, DECC Reference Number GS_1605

An oil and gas industry seabed investigation for Carbon Storage site survey acquired in July 2024. The block numbers traversed were 44/26, 44/27, 43/24, 43/25, 43/29, 43/30, 44/21, 44/22.

Organization: British Geological Survey (BGS)
EPSRC project data: DiSECCS - Seismic analysis datasets from Sleipner

1. Grids (in spreadsheet form) of interpreted parameters from the 3D time-lapse seismics (temporal and constructed depth thicknesses) at the Sleipner CO2 storage operation in the North Sea. 2. A synthetic seismic model of a CO2 wedge, to examine the relationship between wedge true thickness and temporal thicknesses. These datasets underpin following publications: Chadwick, R.A., Williams, G.A. & White, J.C. 2016. High resolution imaging and characterisation of a CO2 layer at the Sleipner CO2 Storage operation using time-lapse seismics. First Break, 34, 79-87. The source data comprise the Sleipner 3D time-lapse surveys which were acquired in 1994 (baseline), 1999, 2001, 2002, 2004, 2006, 2008 and 2010. The dataset used here for measuring temporal thicknesses is the 2010 high resolution dataset with constructed depth thicknesses from the 1994 baseline data. Grant number: EP/K035878/1.

Tags: Carbon capture and storage, NERC_DDC
Organization: British Geological Survey (BGS)