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  • 1
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    (Table 1) Age, location, and depositional environment information for hardgrounds (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 10; 11; 12; 13; 14; 15; 16; 17; 2; 3; 4; 5; 6; 7; 8; 9; Age, comment; Avon Park Formation, USA; carbonate hard grounds; CHC-01; CHC-02; CHC-03; CHC-04; CHC-05; CHC-06; CHC-07; CHC-08; CHC-09; CHC-10; CHC-11; CHC-12; CHC-13; CHC-14; CHC-15; CHC-16; CHC-17; Enewetak Atoll, Marshalls Islands; Environment; Eskett Limestones, England; Event label; Furongian, Banff National Park; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; Kanosh Formation, Utah; Latemar Formation; LATITUDE; Location; LONGITUDE; Marjuman, Banff National Park; Meerssen Member, the Netherlands; Mg/Ca ratios; Mussafah Channel Hardground, UAE; Period; Qishn Formation, Oman; Reference/source; Sample code/label; Stage; strontium isotopes; Suwannee Limestone, USA; Upper Greensands, Devon, UK
    Type: Dataset
    Format: text/tab-separated-values, 119 data points
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  • 2
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    Chemical composition of carbonate hardground cements (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Description: Trace metal and isotopic ratios, including some rare earth elements, Mg/Ca, manganese and strontium concentrations, δ¹⁸O, δ¹³C, and ⁸⁷Sr/⁸⁶Sr, were analyzed in the carbonate cements from 17 Phanerozoic carbonate hardgrounds. The sensitivity of the geochemical signal to alteration depends on the geochemical analysis in question and the environmental water-rock ratio. Of these samples, only our modern sample has measurements consistent with primary precipitation from seawater; all other samples precipitated from chemically evolved seawater or were influenced by meteoric water, even if only minimally changed. The more recent samples from the Cenozoic had seawater ⁸⁷Sr/⁸⁶Sr. The Mesozoic samples, in contrast, did not preserve seawater ⁸⁷Sr/⁸⁶Sr, even though the Mg/Ca, δ¹⁸O, and δ¹³C values were consistent with precipitation from seawater. Finally, the Paleozoic samples preserved expected seawater ⁸⁷Sr/⁸⁶Sr, though REE and δ¹⁸O suggest primary precipitation was from evolved seawater. Additionally, we place our results in the context of open vs. closed system precipitation using transects of the Mg/Ca ratios across individual cements. Overall, we stress that one geochemical measurement provides only a partial record of fluid composition, but multiple measurements allow a potential understanding of the seawater geochemical signal.
    Keywords: carbonate hard grounds; Mg/Ca ratios; strontium isotopes
    Type: Dataset
    Format: application/zip, 7 datasets
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  • 3
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    (Table S1) Laser ablation strontium isotope analysis for hardgrounds (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 10; 11; 12; 16; 2; 3; 4; 5; 9; Age, comment; Avon Park Formation, USA; carbonate hard grounds; CHC-01; CHC-02; CHC-03; CHC-04; CHC-05; CHC-09; CHC-10; CHC-11; CHC-12; CHC-16; Enewetak Atoll, Marshalls Islands; Event label; Furongian, Banff National Park; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; LA-ICP-MS, Laser-ablation inductively coupled plasma mass spectrometer; Latemar Formation; Latitude of event; Longitude of event; Mussafah Channel Hardground, UAE; Sample ID; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; strontium isotopes; Suwannee Limestone, USA
    Type: Dataset
    Format: text/tab-separated-values, 496 data points
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  • 4
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    (Table S3) Electron microprobe measurements analysis for hardgrounds (2020)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 10; 11; 13; 14; 15; 16; 17; 2; 3; 4; 5; 6; 7; 8; 9; Age, comment; Avon Park Formation, USA; carbonate hard grounds; CHC-01; CHC-02; CHC-03; CHC-04; CHC-05; CHC-06; CHC-07; CHC-08; CHC-09; CHC-10; CHC-11; CHC-13; CHC-14; CHC-15; CHC-16; CHC-17; Electron microprobe (EMP); Enewetak Atoll, Marshalls Islands; Eskett Limestones, England; Event label; Furongian, Banff National Park; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; Kanosh Formation, Utah; Latemar Formation; Latitude of event; Longitude of event; Magnesium; Magnesium/Calcium ratio; Manganese/Strontium ratio; Marjuman, Banff National Park; Meerssen Member, the Netherlands; Mg/Ca ratios; Mussafah Channel Hardground, UAE; Qishn Formation, Oman; Sample ID; Strontium; Suwannee Limestone, USA; Upper Greensands, Devon, UK
    Type: Dataset
    Format: text/tab-separated-values, 1602 data points
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  • 5
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    (Table S2) Elemental data raw results and internal standard errors for hardground samples (2020)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 11; 12; 17; 2; 3; 4; 5; 9; Age, comment; Aluminium; Aluminium, standard error; Avon Park Formation, USA; Barium; Barium, standard error; Calcium; Calcium, standard error; carbonate hard grounds; Cerium; Cerium, standard error; CHC-01; CHC-02; CHC-03; CHC-04; CHC-05; CHC-09; CHC-11; CHC-12; CHC-17; Copper; Copper, standard error; Enewetak Atoll, Marshalls Islands; Event label; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; Iron; Iron, standard error; LA-ICP-MS, Laser-ablation inductively coupled plasma mass spectrometer; Lanthanum; Lanthanum, standard error; Latemar Formation; Latitude of event; Magnesium; Magnesium, standard error; Manganese; Manganese, standard error; Marjuman, Banff National Park; Mussafah Channel Hardground, UAE; Neodymium; Neodymium, standard error; Phosphorus; Phosphorus, standard error; Praseodymium; Praseodymium, standard error; Sample ID; Strontium; Strontium, standard error; Sulfur; Sulfur, standard error; Suwannee Limestone, USA; Thorium; Thorium, standard error; Titanium; Titanium, standard error; Uranium; Uranium, standard error; Yttrium; Yttrium, standard error; Zinc; Zinc, standard error
    Type: Dataset
    Format: text/tab-separated-values, 7960 data points
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  • 6
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    (Table 2) Lanthanum, cerium, praseodymium, neodymium and yttrium average shale-normalized values and cerium anomalies for hardground samples (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 10; 11; 12; 17; 2; 3; 4; 9; Age, comment; carbonate hard grounds; Cerium, normalized; Cerium anomaly; CHC-01; CHC-02; CHC-03; CHC-04; CHC-09; CHC-10; CHC-11; CHC-12; CHC-17; Enewetak Atoll, Marshalls Islands; Event label; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; Lanthanum, normalized; Latemar Formation; Latitude of event; Longitude of event; Marjuman, Banff National Park; Mussafah Channel Hardground, UAE; Neodymium, normalized; Period; Praseodymium, normalized; Shale-normalized; Stage; Suwannee Limestone, USA; Yttrium, normalized
    Type: Dataset
    Format: text/tab-separated-values, 90 data points
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  • 7
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    (Table 3) Strontium, oxygen, and carbon isotopic measurements for hardground samples (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 10; 11; 12; 13; 14; 15; 16; 17; 2; 3; 4; 5; 6; 7; 8; 9; Age, comment; Avon Park Formation, USA; carbonate hard grounds; CHC-01; CHC-02; CHC-03; CHC-04; CHC-05; CHC-06; CHC-07; CHC-08; CHC-09; CHC-10; CHC-11; CHC-12; CHC-13; CHC-14; CHC-15; CHC-16; CHC-17; Enewetak Atoll, Marshalls Islands; Eskett Limestones, England; Event label; Furongian, Banff National Park; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; Kanosh Formation, Utah; Latemar Formation; Latitude of event; Location; Longitude of event; Marjuman, Banff National Park; Meerssen Member, the Netherlands; Mussafah Channel Hardground, UAE; Number of measurements; Period; Qishn Formation, Oman; Sample code/label; Stage; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; strontium isotopes; Suwannee Limestone, USA; Upper Greensands, Devon, UK; δ13C, carbonate; δ18O, carbonate
    Type: Dataset
    Format: text/tab-separated-values, 168 data points
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  • 8
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    (Table 4) Manganese, strontium, and magnesium concentrations, along with proposed formational fluid Mg/Ca ratios, for hardground samples (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-11
    Keywords: 1; 10; 11; 12; 13; 14; 15; 16; 17; 2; 3; 4; 5; 6; 7; 8; 9; Age, comment; Avon Park Formation, USA; carbonate hard grounds; CHC-01; CHC-02; CHC-03; CHC-04; CHC-05; CHC-06; CHC-07; CHC-08; CHC-09; CHC-10; CHC-11; CHC-12; CHC-13; CHC-14; CHC-15; CHC-16; CHC-17; Enewetak Atoll, Marshalls Islands; Eskett Limestones, England; Event label; Furongian, Banff National Park; Geological sample; GEOS; Gerecse Mts. Of Hungary; Holder formation, New Mexico; Intertidal Zone, Persian Gulf, UAE; Kanosh Formation, Utah; Latemar Formation; Latitude of event; Location; Longitude of event; Magnesium; Magnesium/Calcium ratio; Magnesium/Calcium ratio, standard error; Manganese/Strontium ratio; Marjuman, Banff National Park; Meerssen Member, the Netherlands; Mg/Ca ratios; Mussafah Channel Hardground, UAE; Number of measurements; Period; Qishn Formation, Oman; Sample code/label; Stage; Strontium; Suwannee Limestone, USA; Upper Greensands, Devon, UK
    Type: Dataset
    Format: text/tab-separated-values, 255 data points
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  • 9
    Electronic Resource
    Electronic Resource
    Petrography, chemistry and origin of early diagenetic concretions in the Lower Carboniferous of the Isle of Man (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 23 (1976), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Three silicified limestone horizons of D1 age from the Visean of the Isle of Man contain calcitic concretions with peripheral silica crusts, occasionally surrounded by a further calcitic layer. Components of the original sediment include carbonate skeletons, carbonaceous grains, sponge spicules and muscovite. Diagenetic products include calcite, dolomite, pyrite, sphalerite, clays, feldspar and quartz.The concretions are composed of neomorphic calcite. The time of recrystallization and the identity of the neomorphic precurosor are both unknown. Displacive, fibrous calcite is chemically similar to neomorphic calcite and both are of early diagenetic age. Granular and rhombic ferroan calcites are of late diagenetic age and were precipitated from pore-waters with Sr/Ca, Mg/Ca and Fe/Ca ratios unlike those of seawater.The difference between early silicification which produced silica crusts and later diffuse silicification of the host sediment is related to a change in sediment transmissivity between the two silicification periods.A four-fold scheme of concretionary growth is proposed. The supply of silica is from sponge spicules and that of carbonate from seawater via porewater. The distribution of organic matter, either as sporadic large carcasses or as small carcasses concentrated in particular horizons, is believed to be vital for carbonate precipitation and controls the distribution of concretions.Awareness of the multiplicity of diagenetic changes is essential in interpretation of early porewater systems and in the origin of products which are often metastable and destined to subsequent changes. No single model is an explanation for all types of concretionary growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1976.tb00046.x
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  • 10
    Electronic Resource
    Electronic Resource
    Ulster White Limestone Formation (Upper Cretaceous) of Northern Ireland: effects of basalt loading on chalk diagenesis (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 44 (1997), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The Ulster White Limestone Formation is an unusual chalk because it underwent a period of post-depositional emergence and erosion, followed by burial under 1·5–2·0 km of Tertiary basalts. A high degree of pressure solution and cementation produced a well-lithified limestone with low porosities (2·3–10·4%). The Ulster White Limestone shows no evidence of thermally induced textural alteration, except for thin (〈0·5 m) pseudospar contact recrystallization zones adjoining basalt dykes. Whole-rock δ18O values of samples not associated with basalt dykes range from - 3·26%o to - 6·50%o (PDB). The δ18O values of macropore cements range from - 4·96%o to - 11·52%o (mean=-8·27%o). Modelling of the diagenesis of the Ulster White Limestone using trace element concentrations and carbon, oxygen and strontium isotopic ratios of whole rock and cement samples suggests a low water-rock ratio and either marine or mixed marine-meteoric pore water environment during the main episode of recrystallization. The maximum possible burial temperature was modelled to be ≃ 105°C.The diagenetic history of the Ulster White Limestone is similar to that of North Sea chalks that are at comparable burial depths as the Ulster White Limestone after basalt deposition. The geochemical data show no indication of hydrothermal alteration associated with the overlying basalts. The degree of alteration of fine-grained limestones composed predominantly of low-magnesium calcite, such as the Cretaceous/Tertiary chalks, appears to be controlled largely by the burial (effective stress) history of the limestone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1997.tb00426.x
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