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X-ray diffraction profiles, Raman spectra and carbon and oxygen isotope compo...
The mineral phase of primary marine fibrous carbonate is supposed to be mainly controlled by the Mg/Ca of seawater during precipitation. However, fibrous Mg calcite was... -
Data compilation of locations of seafloor seeps
Data compilation localising global cold seepage sites on the seafloor. -
(Table 2) Carbon stable isotopic signatures and gas geochemical compositions ...
GoM Gulf of Mexico, BS Black Sea, MS Mediterranean Sea, MV mud volcanoa: Data from Schmale et al. (2010)b: standard deviation with <1‰ higher than for other samples (0.5 to... -
(Table 1) Total organic and carbonate carbon in seep carbonates from the Gulf...
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(Table 4) Stable oxygen and carbon isotopes of sediment cores GeoB11936 and G...
HMC - high Mg calcite; LMC - low-Mg calcite.a Assuming a similar mineralogy as in the CO facies of the carbonate samples.b Based on unpublished XRD data on the same core depths. -
(Table 3) Carbon and oxygen stable isotopes in sub-samples and calculated pre...
CO - lithified coccolith ooze; TZ - Transition Zone; YA - Yellowish Aragonite; HMC - high-Mg calcite; LMC - low-Mg calcite.Mineralogy - Main and accessory (in brackets)... -
(Table 2) X-ray diffractometry analyses of carbonate samples from station Geo...
CO - lithified coccolith ooze; TZ - Transition Zone; YA - Yellowish Aragonite* Badly defined LMC (104)-peak hampered unambiguous determination of d-value.MgCO3, weighted mean =... -
Sulphate concentration, Mg/Ca ratio, Cl- content and δ¹⁸O of interstitial wat...
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(Table 3) Concentrations and δ¹³C values of selected compounds from diverse s...
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(Table 2) Stable carbon and oxygen isotope of station GeoB9908-1
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(Table 1) XRD and geochemical bulk sediment analyses on specific lithological...
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(Appendix 1) Stable carbon and hydrogen data of different settings
w.m.: values are given as weighted mean of seperate aliquots extracted over time, n.m.: not measured, n.d.: not detected, Depth, sediment=mbsf: meter below seafloor -
(Appendix 3) Tabulated data of total carbon (TC) and total organic carbon (TO...
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(Appendix 4) Mineral content from different oceanographic settings
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(Table 1) Mean grain sizes and standard deviations of gas hydrate samples
Methane hydrates are present in marine seep systems and occur within the gas hydrate stability zone. Very little is known about their crystallite sizes and size distributions... -
(Table 1) Summary of sampling points described and main petrographic, morphol...
Targeted sampling on the Dolgovskoy Mound (northern Shatsky Ridge) revealed the presence of spectacular laterally extensive and differently shaped authigenic carbonates. The... -
(Appendix 7) Tabulated data of hydrocarbon gases from different oceanographic...
n.m.: not measured, n.d.: not detected, Depth, sediment=meter below seafloor -
Documentation of sediment core GeoB9935-2
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Documentation of sediment core GeoB9935-1
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Documentation of sediment core GeoB9933-1
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